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OrcaSlicer/src/libslic3r/Format/3mf.cpp
SoftFever 9b2c2bff1d Support larger printer sizes by using 64-bit. 
SuperSlicer is referenced for some changes.

Co-authored-by: Merill <merill@free.fr>
2024-05-10 23:47:08 +08:00

3279 lines
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#include "../libslic3r.h"
#include "../Exception.hpp"
#include "../Model.hpp"
#include "../Utils.hpp"
#include "../LocalesUtils.hpp"
#include "../GCode.hpp"
#include "../Geometry.hpp"
#include "../GCode/ThumbnailData.hpp"
#include "../Semver.hpp"
#include "../Time.hpp"
#include "../I18N.hpp"
#include "3mf.hpp"
#include <limits>
#include <stdexcept>
#include <boost/algorithm/string/classification.hpp>
#include <boost/algorithm/string/split.hpp>
#include <boost/algorithm/string/predicate.hpp>
#include <boost/algorithm/string/replace.hpp>
#include <boost/filesystem/operations.hpp>
#include <boost/spirit/include/karma.hpp>
#include <boost/spirit/include/qi_int.hpp>
#include <boost/log/trivial.hpp>
#include <boost/property_tree/ptree.hpp>
#include <boost/property_tree/xml_parser.hpp>
#include <boost/foreach.hpp>
namespace pt = boost::property_tree;
#include <expat.h>
#include <Eigen/Dense>
#include "miniz_extension.hpp"
#include <fast_float/fast_float.h>
// Slightly faster than sprintf("%.9g"), but there is an issue with the karma floating point formatter,
// https://github.com/boostorg/spirit/pull/586
// where the exported string is one digit shorter than it should be to guarantee lossless round trip.
// The code is left here for the ocasion boost guys improve.
#define EXPORT_3MF_USE_SPIRIT_KARMA_FP 0
// VERSION NUMBERS
// 0 : .3mf, files saved by older slic3r or other applications. No version definition in them.
// 1 : Introduction of 3mf versioning. No other change in data saved into 3mf files.
// 2 : Volumes' matrices and source data added to Metadata/Slic3r_PE_model.config file, meshes transformed back to their coordinate system on loading.
// WARNING !! -> the version number has been rolled back to 1
// the next change should use 3
const unsigned int VERSION_3MF = 1;
// Allow loading version 2 file as well.
const unsigned int VERSION_3MF_COMPATIBLE = 2;
const char* SLIC3RPE_3MF_VERSION = "slic3rpe:Version3mf"; // definition of the metadata name saved into .model file
// Painting gizmos data version numbers
// 0 : 3MF files saved by older PrusaSlicer or the painting gizmo wasn't used. No version definition in them.
// 1 : Introduction of painting gizmos data versioning. No other changes in painting gizmos data.
const unsigned int FDM_SUPPORTS_PAINTING_VERSION = 1;
const unsigned int SEAM_PAINTING_VERSION = 1;
const unsigned int MM_PAINTING_VERSION = 1;
const std::string SLIC3RPE_FDM_SUPPORTS_PAINTING_VERSION = "slic3rpe:FdmSupportsPaintingVersion";
const std::string SLIC3RPE_SEAM_PAINTING_VERSION = "slic3rpe:SeamPaintingVersion";
const std::string SLIC3RPE_MM_PAINTING_VERSION = "slic3rpe:MmPaintingVersion";
const std::string MODEL_FOLDER = "3D/";
const std::string MODEL_EXTENSION = ".model";
const std::string MODEL_FILE = "3D/3dmodel.model"; // << this is the only format of the string which works with CURA
const std::string CONTENT_TYPES_FILE = "[Content_Types].xml";
const std::string RELATIONSHIPS_FILE = "_rels/.rels";
const std::string THUMBNAIL_FILE = "Metadata/thumbnail.png";
const std::string PRINT_CONFIG_FILE = "Metadata/Slic3r_PE.config";
const std::string MODEL_CONFIG_FILE = "Metadata/Slic3r_PE_model.config";
const std::string LAYER_HEIGHTS_PROFILE_FILE = "Metadata/Slic3r_PE_layer_heights_profile.txt";
const std::string LAYER_CONFIG_RANGES_FILE = "Metadata/Prusa_Slicer_layer_config_ranges.xml";
const std::string SLA_SUPPORT_POINTS_FILE = "Metadata/Slic3r_PE_sla_support_points.txt";
const std::string SLA_DRAIN_HOLES_FILE = "Metadata/Slic3r_PE_sla_drain_holes.txt";
const std::string CUSTOM_GCODE_PER_PRINT_Z_FILE = "Metadata/Prusa_Slicer_custom_gcode_per_print_z.xml";
static constexpr const char* MODEL_TAG = "model";
static constexpr const char* RESOURCES_TAG = "resources";
static constexpr const char* OBJECT_TAG = "object";
static constexpr const char* MESH_TAG = "mesh";
static constexpr const char* VERTICES_TAG = "vertices";
static constexpr const char* VERTEX_TAG = "vertex";
static constexpr const char* TRIANGLES_TAG = "triangles";
static constexpr const char* TRIANGLE_TAG = "triangle";
static constexpr const char* COMPONENTS_TAG = "components";
static constexpr const char* COMPONENT_TAG = "component";
static constexpr const char* BUILD_TAG = "build";
static constexpr const char* ITEM_TAG = "item";
static constexpr const char* METADATA_TAG = "metadata";
static constexpr const char* CONFIG_TAG = "config";
static constexpr const char* VOLUME_TAG = "volume";
static constexpr const char* UNIT_ATTR = "unit";
static constexpr const char* NAME_ATTR = "name";
static constexpr const char* TYPE_ATTR = "type";
static constexpr const char* ID_ATTR = "id";
static constexpr const char* X_ATTR = "x";
static constexpr const char* Y_ATTR = "y";
static constexpr const char* Z_ATTR = "z";
static constexpr const char* V1_ATTR = "v1";
static constexpr const char* V2_ATTR = "v2";
static constexpr const char* V3_ATTR = "v3";
static constexpr const char* OBJECTID_ATTR = "objectid";
static constexpr const char* TRANSFORM_ATTR = "transform";
static constexpr const char* PRINTABLE_ATTR = "printable";
static constexpr const char* INSTANCESCOUNT_ATTR = "instances_count";
static constexpr const char* CUSTOM_SUPPORTS_ATTR = "slic3rpe:custom_supports";
static constexpr const char* CUSTOM_SEAM_ATTR = "slic3rpe:custom_seam";
static constexpr const char* MMU_SEGMENTATION_ATTR = "slic3rpe:mmu_segmentation";
static constexpr const char* KEY_ATTR = "key";
static constexpr const char* VALUE_ATTR = "value";
static constexpr const char* FIRST_TRIANGLE_ID_ATTR = "firstid";
static constexpr const char* LAST_TRIANGLE_ID_ATTR = "lastid";
static constexpr const char* OBJECT_TYPE = "object";
static constexpr const char* VOLUME_TYPE = "volume";
static constexpr const char* NAME_KEY = "name";
static constexpr const char* MODIFIER_KEY = "modifier";
static constexpr const char* VOLUME_TYPE_KEY = "volume_type";
static constexpr const char* MATRIX_KEY = "matrix";
static constexpr const char* SOURCE_FILE_KEY = "source_file";
static constexpr const char* SOURCE_OBJECT_ID_KEY = "source_object_id";
static constexpr const char* SOURCE_VOLUME_ID_KEY = "source_volume_id";
static constexpr const char* SOURCE_OFFSET_X_KEY = "source_offset_x";
static constexpr const char* SOURCE_OFFSET_Y_KEY = "source_offset_y";
static constexpr const char* SOURCE_OFFSET_Z_KEY = "source_offset_z";
static constexpr const char* SOURCE_IN_INCHES = "source_in_inches";
static constexpr const char* SOURCE_IN_METERS = "source_in_meters";
static constexpr const char* MESH_STAT_EDGES_FIXED = "edges_fixed";
static constexpr const char* MESH_STAT_DEGENERATED_FACETS = "degenerate_facets";
static constexpr const char* MESH_STAT_FACETS_REMOVED = "facets_removed";
static constexpr const char* MESH_STAT_FACETS_RESERVED = "facets_reversed";
static constexpr const char* MESH_STAT_BACKWARDS_EDGES = "backwards_edges";
const unsigned int VALID_OBJECT_TYPES_COUNT = 1;
const char* VALID_OBJECT_TYPES[] =
{
"model"
};
const char* INVALID_OBJECT_TYPES[] =
{
"solidsupport",
"support",
"surface",
"other"
};
class version_error : public Slic3r::FileIOError
{
public:
version_error(const std::string& what_arg) : Slic3r::FileIOError(what_arg) {}
version_error(const char* what_arg) : Slic3r::FileIOError(what_arg) {}
};
const char* get_attribute_value_charptr(const char** attributes, unsigned int attributes_size, const char* attribute_key)
{
if ((attributes == nullptr) || (attributes_size == 0) || (attributes_size % 2 != 0) || (attribute_key == nullptr))
return nullptr;
for (unsigned int a = 0; a < attributes_size; a += 2) {
if (::strcmp(attributes[a], attribute_key) == 0)
return attributes[a + 1];
}
return nullptr;
}
std::string get_attribute_value_string(const char** attributes, unsigned int attributes_size, const char* attribute_key)
{
const char* text = get_attribute_value_charptr(attributes, attributes_size, attribute_key);
return (text != nullptr) ? text : "";
}
float get_attribute_value_float(const char** attributes, unsigned int attributes_size, const char* attribute_key)
{
float value = 0.0f;
if (const char *text = get_attribute_value_charptr(attributes, attributes_size, attribute_key); text != nullptr)
fast_float::from_chars(text, text + strlen(text), value);
return value;
}
int get_attribute_value_int(const char** attributes, unsigned int attributes_size, const char* attribute_key)
{
int value = 0;
if (const char *text = get_attribute_value_charptr(attributes, attributes_size, attribute_key); text != nullptr)
boost::spirit::qi::parse(text, text + strlen(text), boost::spirit::qi::int_, value);
return value;
}
bool get_attribute_value_bool(const char** attributes, unsigned int attributes_size, const char* attribute_key)
{
const char* text = get_attribute_value_charptr(attributes, attributes_size, attribute_key);
return (text != nullptr) ? (bool)::atoi(text) : true;
}
Slic3r::Transform3d get_transform_from_3mf_specs_string(const std::string& mat_str)
{
// check: https://3mf.io/3d-manufacturing-format/ or https://github.com/3MFConsortium/spec_core/blob/master/3MF%20Core%20Specification.md
// to see how matrices are stored inside 3mf according to specifications
Slic3r::Transform3d ret = Slic3r::Transform3d::Identity();
if (mat_str.empty())
// empty string means default identity matrix
return ret;
std::vector<std::string> mat_elements_str;
boost::split(mat_elements_str, mat_str, boost::is_any_of(" "), boost::token_compress_on);
unsigned int size = (unsigned int)mat_elements_str.size();
if (size != 12)
// invalid data, return identity matrix
return ret;
unsigned int i = 0;
// matrices are stored into 3mf files as 4x3
// we need to transpose them
for (unsigned int c = 0; c < 4; ++c) {
for (unsigned int r = 0; r < 3; ++r) {
ret(r, c) = ::atof(mat_elements_str[i++].c_str());
}
}
return ret;
}
float get_unit_factor(const std::string& unit)
{
const char* text = unit.c_str();
if (::strcmp(text, "micron") == 0)
return 0.001f;
else if (::strcmp(text, "centimeter") == 0)
return 10.0f;
else if (::strcmp(text, "inch") == 0)
return 25.4f;
else if (::strcmp(text, "foot") == 0)
return 304.8f;
else if (::strcmp(text, "meter") == 0)
return 1000.0f;
else
// default "millimeters" (see specification)
return 1.0f;
}
bool is_valid_object_type(const std::string& type)
{
// if the type is empty defaults to "model" (see specification)
if (type.empty())
return true;
for (unsigned int i = 0; i < VALID_OBJECT_TYPES_COUNT; ++i) {
if (::strcmp(type.c_str(), VALID_OBJECT_TYPES[i]) == 0)
return true;
}
return false;
}
namespace Slic3r {
//! macro used to mark string used at localization,
//! return same string
#define L(s) (s)
#define _(s) Slic3r::I18N::translate(s)
void XMLCALL PrusaFileParser::start_element_handler(void *userData, const char *name, const char **attributes)
{
PrusaFileParser *prusa_parser = (PrusaFileParser *) userData;
if (prusa_parser != nullptr) { prusa_parser->_start_element_handler(name, attributes); }
}
void XMLCALL PrusaFileParser::characters_handler(void *userData, const XML_Char *s, int len)
{
PrusaFileParser *prusa_parser = (PrusaFileParser *) userData;
if (prusa_parser != nullptr) { prusa_parser->_characters_handler(s, len); }
}
bool PrusaFileParser::check_3mf_from_prusa(const std::string filename)
{
mz_zip_archive archive;
mz_zip_zero_struct(&archive);
if (!open_zip_reader(&archive, filename)) {
// throw Slic3r::RuntimeError("Loading 3mf file failed.");
return false;
}
const std::string sub_relationship_file = "3D/_rels/3dmodel.model.rels";
int sub_index = mz_zip_reader_locate_file(&archive, sub_relationship_file.c_str(), nullptr, 0);
if (sub_index == -1) {
const std::string model_file = "3D/3dmodel.model";
int model_file_index = mz_zip_reader_locate_file(&archive, model_file.c_str(), nullptr, 0);
if (model_file_index != -1) {
int depth = 0;
m_parser = XML_ParserCreate(nullptr);
XML_SetUserData(m_parser, (void *) this);
XML_SetElementHandler(m_parser, start_element_handler, nullptr);
XML_SetCharacterDataHandler(m_parser, characters_handler);
mz_zip_archive_file_stat stat;
if (!mz_zip_reader_file_stat(&archive, model_file_index, &stat)) goto EXIT;
void *parser_buffer = XML_GetBuffer(m_parser, (int) stat.m_uncomp_size);
if (parser_buffer == nullptr) goto EXIT;
mz_bool res = mz_zip_reader_extract_file_to_mem(&archive, stat.m_filename, parser_buffer, (size_t) stat.m_uncomp_size, 0);
if (res == 0) goto EXIT;
XML_ParseBuffer(m_parser, (int) stat.m_uncomp_size, 1);
}
}
EXIT:
close_zip_reader(&archive);
return m_from_prusa;
}
void PrusaFileParser::_characters_handler(const XML_Char *s, int len)
{
if (m_is_application_key) {
std::string str(s, len);
if (!str.empty() && str.find("PrusaSlicer") != std::string::npos) m_from_prusa = true;
}
}
void PrusaFileParser::_start_element_handler(const char *name, const char **attributes)
{
if (::strcmp(name, "metadata") == 0) {
unsigned int num_attributes = (unsigned int) XML_GetSpecifiedAttributeCount(m_parser);
std::string str_name = get_attribute_value_string(attributes, num_attributes, "name");
if (!str_name.empty() && str_name.find("Application") != std::string::npos) { m_is_application_key = true; }
}
}
const char *PrusaFileParser::get_attribute_value_charptr(const char **attributes, unsigned int attributes_size, const char *attribute_key)
{
if ((attributes == nullptr) || (attributes_size == 0) || (attributes_size % 2 != 0) || (attribute_key == nullptr)) return nullptr;
for (unsigned int a = 0; a < attributes_size; a += 2) {
if (::strcmp(attributes[a], attribute_key) == 0) return attributes[a + 1];
}
return nullptr;
}
std::string PrusaFileParser::get_attribute_value_string(const char **attributes, unsigned int attributes_size, const char *attribute_key)
{
const char *text = get_attribute_value_charptr(attributes, attributes_size, attribute_key);
return (text != nullptr) ? text : "";
}
ModelVolumeType type_from_string(const std::string &s)
{
// Legacy support
if (s == "1") return ModelVolumeType::PARAMETER_MODIFIER;
// New type (supporting the support enforcers & blockers)
if (s == "ModelPart") return ModelVolumeType::MODEL_PART;
if (s == "NegativeVolume") return ModelVolumeType::NEGATIVE_VOLUME;
if (s == "ParameterModifier") return ModelVolumeType::PARAMETER_MODIFIER;
if (s == "SupportEnforcer") return ModelVolumeType::SUPPORT_ENFORCER;
if (s == "SupportBlocker") return ModelVolumeType::SUPPORT_BLOCKER;
// Default value if invalud type string received.
return ModelVolumeType::MODEL_PART;
}
// Base class with error messages management
class _3MF_Base
{
std::vector<std::string> m_errors;
protected:
void add_error(const std::string& error) { m_errors.push_back(error); }
void clear_errors() { m_errors.clear(); }
public:
void log_errors()
{
for (const std::string& error : m_errors)
BOOST_LOG_TRIVIAL(error) << error;
}
};
class _3MF_Importer : public _3MF_Base
{
struct Component
{
int object_id;
Transform3d transform;
explicit Component(int object_id)
: object_id(object_id)
, transform(Transform3d::Identity())
{
}
Component(int object_id, const Transform3d& transform)
: object_id(object_id)
, transform(transform)
{
}
};
typedef std::vector<Component> ComponentsList;
struct Geometry
{
std::vector<Vec3f> vertices;
std::vector<Vec3i32> triangles;
std::vector<std::string> custom_supports;
std::vector<std::string> custom_seam;
std::vector<std::string> mmu_segmentation;
bool empty() { return vertices.empty() || triangles.empty(); }
void reset() {
vertices.clear();
triangles.clear();
custom_supports.clear();
custom_seam.clear();
mmu_segmentation.clear();
}
};
struct CurrentObject
{
// ID of the object inside the 3MF file, 1 based.
int id;
// Index of the ModelObject in its respective Model, zero based.
int model_object_idx;
Geometry geometry;
ModelObject* object;
ComponentsList components;
CurrentObject() { reset(); }
void reset() {
id = -1;
model_object_idx = -1;
geometry.reset();
object = nullptr;
components.clear();
}
};
struct CurrentConfig
{
int object_id;
int volume_id;
};
struct Instance
{
ModelInstance* instance;
Transform3d transform;
Instance(ModelInstance* instance, const Transform3d& transform)
: instance(instance)
, transform(transform)
{
}
};
struct Metadata
{
std::string key;
std::string value;
Metadata(const std::string& key, const std::string& value)
: key(key)
, value(value)
{
}
};
typedef std::vector<Metadata> MetadataList;
struct ObjectMetadata
{
struct VolumeMetadata
{
unsigned int first_triangle_id;
unsigned int last_triangle_id;
MetadataList metadata;
RepairedMeshErrors mesh_stats;
VolumeMetadata(unsigned int first_triangle_id, unsigned int last_triangle_id)
: first_triangle_id(first_triangle_id)
, last_triangle_id(last_triangle_id)
{
}
};
typedef std::vector<VolumeMetadata> VolumeMetadataList;
MetadataList metadata;
VolumeMetadataList volumes;
};
// Map from a 1 based 3MF object ID to a 0 based ModelObject index inside m_model->objects.
typedef std::map<int, int> IdToModelObjectMap;
typedef std::map<int, ComponentsList> IdToAliasesMap;
typedef std::vector<Instance> InstancesList;
typedef std::map<int, ObjectMetadata> IdToMetadataMap;
typedef std::map<int, Geometry> IdToGeometryMap;
typedef std::map<int, std::vector<coordf_t>> IdToLayerHeightsProfileMap;
typedef std::map<int, t_layer_config_ranges> IdToLayerConfigRangesMap;
typedef std::map<int, std::vector<sla::SupportPoint>> IdToSlaSupportPointsMap;
typedef std::map<int, std::vector<sla::DrainHole>> IdToSlaDrainHolesMap;
// Version of the 3mf file
unsigned int m_version;
bool m_check_version;
// Semantic version of PrusaSlicer, that generated this 3MF.
boost::optional<Semver> m_prusaslicer_generator_version;
unsigned int m_fdm_supports_painting_version = 0;
unsigned int m_seam_painting_version = 0;
unsigned int m_mm_painting_version = 0;
XML_Parser m_xml_parser;
// Error code returned by the application side of the parser. In that case the expat may not reliably deliver the error state
// after returning from XML_Parse() function, thus we keep the error state here.
bool m_parse_error { false };
std::string m_parse_error_message;
Model* m_model;
float m_unit_factor;
CurrentObject m_curr_object;
IdToModelObjectMap m_objects;
IdToAliasesMap m_objects_aliases;
InstancesList m_instances;
IdToGeometryMap m_geometries;
CurrentConfig m_curr_config;
IdToMetadataMap m_objects_metadata;
IdToLayerHeightsProfileMap m_layer_heights_profiles;
IdToLayerConfigRangesMap m_layer_config_ranges;
IdToSlaSupportPointsMap m_sla_support_points;
IdToSlaDrainHolesMap m_sla_drain_holes;
std::string m_curr_metadata_name;
std::string m_curr_characters;
std::string m_name;
public:
_3MF_Importer();
~_3MF_Importer();
bool load_model_from_file(const std::string& filename, Model& model, DynamicPrintConfig& config, ConfigSubstitutionContext& config_substitutions, bool check_version);
unsigned int version() const { return m_version; }
private:
void _destroy_xml_parser();
void _stop_xml_parser(const std::string& msg = std::string());
bool parse_error() const { return m_parse_error; }
const char* parse_error_message() const {
return m_parse_error ?
// The error was signalled by the user code, not the expat parser.
(m_parse_error_message.empty() ? "Invalid 3MF format" : m_parse_error_message.c_str()) :
// The error was signalled by the expat parser.
XML_ErrorString(XML_GetErrorCode(m_xml_parser));
}
bool _load_model_from_file(const std::string& filename, Model& model, DynamicPrintConfig& config, ConfigSubstitutionContext& config_substitutions);
bool _extract_model_from_archive(mz_zip_archive& archive, const mz_zip_archive_file_stat& stat);
void _extract_layer_heights_profile_config_from_archive(mz_zip_archive& archive, const mz_zip_archive_file_stat& stat);
void _extract_layer_config_ranges_from_archive(mz_zip_archive& archive, const mz_zip_archive_file_stat& stat, ConfigSubstitutionContext& config_substitutions);
void _extract_sla_support_points_from_archive(mz_zip_archive& archive, const mz_zip_archive_file_stat& stat);
void _extract_sla_drain_holes_from_archive(mz_zip_archive& archive, const mz_zip_archive_file_stat& stat);
void _extract_custom_gcode_per_print_z_from_archive(mz_zip_archive& archive, const mz_zip_archive_file_stat& stat);
void _extract_print_config_from_archive(mz_zip_archive& archive, const mz_zip_archive_file_stat& stat, DynamicPrintConfig& config, ConfigSubstitutionContext& subs_context, const std::string& archive_filename);
bool _extract_model_config_from_archive(mz_zip_archive& archive, const mz_zip_archive_file_stat& stat, Model& model);
// handlers to parse the .model file
void _handle_start_model_xml_element(const char* name, const char** attributes);
void _handle_end_model_xml_element(const char* name);
void _handle_model_xml_characters(const XML_Char* s, int len);
// handlers to parse the MODEL_CONFIG_FILE file
void _handle_start_config_xml_element(const char* name, const char** attributes);
void _handle_end_config_xml_element(const char* name);
bool _handle_start_model(const char** attributes, unsigned int num_attributes);
bool _handle_end_model();
bool _handle_start_resources(const char** attributes, unsigned int num_attributes);
bool _handle_end_resources();
bool _handle_start_object(const char** attributes, unsigned int num_attributes);
bool _handle_end_object();
bool _handle_start_mesh(const char** attributes, unsigned int num_attributes);
bool _handle_end_mesh();
bool _handle_start_vertices(const char** attributes, unsigned int num_attributes);
bool _handle_end_vertices();
bool _handle_start_vertex(const char** attributes, unsigned int num_attributes);
bool _handle_end_vertex();
bool _handle_start_triangles(const char** attributes, unsigned int num_attributes);
bool _handle_end_triangles();
bool _handle_start_triangle(const char** attributes, unsigned int num_attributes);
bool _handle_end_triangle();
bool _handle_start_components(const char** attributes, unsigned int num_attributes);
bool _handle_end_components();
bool _handle_start_component(const char** attributes, unsigned int num_attributes);
bool _handle_end_component();
bool _handle_start_build(const char** attributes, unsigned int num_attributes);
bool _handle_end_build();
bool _handle_start_item(const char** attributes, unsigned int num_attributes);
bool _handle_end_item();
bool _handle_start_metadata(const char** attributes, unsigned int num_attributes);
bool _handle_end_metadata();
bool _create_object_instance(int object_id, const Transform3d& transform, const bool printable, unsigned int recur_counter);
void _apply_transform(ModelInstance& instance, const Transform3d& transform);
bool _handle_start_config(const char** attributes, unsigned int num_attributes);
bool _handle_end_config();
bool _handle_start_config_object(const char** attributes, unsigned int num_attributes);
bool _handle_end_config_object();
bool _handle_start_config_volume(const char** attributes, unsigned int num_attributes);
bool _handle_start_config_volume_mesh(const char** attributes, unsigned int num_attributes);
bool _handle_end_config_volume();
bool _handle_end_config_volume_mesh();
bool _handle_start_config_metadata(const char** attributes, unsigned int num_attributes);
bool _handle_end_config_metadata();
bool _generate_volumes(ModelObject& object, const Geometry& geometry, const ObjectMetadata::VolumeMetadataList& volumes, ConfigSubstitutionContext& config_substitutions);
// callbacks to parse the .model file
static void XMLCALL _handle_start_model_xml_element(void* userData, const char* name, const char** attributes);
static void XMLCALL _handle_end_model_xml_element(void* userData, const char* name);
static void XMLCALL _handle_model_xml_characters(void* userData, const XML_Char* s, int len);
// callbacks to parse the MODEL_CONFIG_FILE file
static void XMLCALL _handle_start_config_xml_element(void* userData, const char* name, const char** attributes);
static void XMLCALL _handle_end_config_xml_element(void* userData, const char* name);
};
_3MF_Importer::_3MF_Importer()
: m_version(0)
, m_check_version(false)
, m_xml_parser(nullptr)
, m_model(nullptr)
, m_unit_factor(1.0f)
, m_curr_metadata_name("")
, m_curr_characters("")
, m_name("")
{
}
_3MF_Importer::~_3MF_Importer()
{
_destroy_xml_parser();
}
bool _3MF_Importer::load_model_from_file(const std::string& filename, Model& model, DynamicPrintConfig& config, ConfigSubstitutionContext& config_substitutions, bool check_version)
{
m_version = 0;
m_fdm_supports_painting_version = 0;
m_seam_painting_version = 0;
m_mm_painting_version = 0;
m_check_version = check_version;
m_model = &model;
m_unit_factor = 1.0f;
m_curr_object.reset();
m_objects.clear();
m_objects_aliases.clear();
m_instances.clear();
m_geometries.clear();
m_curr_config.object_id = -1;
m_curr_config.volume_id = -1;
m_objects_metadata.clear();
m_layer_heights_profiles.clear();
m_layer_config_ranges.clear();
m_sla_support_points.clear();
m_curr_metadata_name.clear();
m_curr_characters.clear();
clear_errors();
return _load_model_from_file(filename, model, config, config_substitutions);
}
void _3MF_Importer::_destroy_xml_parser()
{
if (m_xml_parser != nullptr) {
XML_ParserFree(m_xml_parser);
m_xml_parser = nullptr;
}
}
void _3MF_Importer::_stop_xml_parser(const std::string &msg)
{
assert(! m_parse_error);
assert(m_parse_error_message.empty());
assert(m_xml_parser != nullptr);
m_parse_error = true;
m_parse_error_message = msg;
XML_StopParser(m_xml_parser, false);
}
bool _3MF_Importer::_load_model_from_file(const std::string& filename, Model& model, DynamicPrintConfig& config, ConfigSubstitutionContext& config_substitutions)
{
mz_zip_archive archive;
mz_zip_zero_struct(&archive);
if (!open_zip_reader(&archive, filename)) {
add_error("Unable to open the file");
return false;
}
mz_uint num_entries = mz_zip_reader_get_num_files(&archive);
mz_zip_archive_file_stat stat;
m_name = boost::filesystem::path(filename).stem().string();
// we first loop the entries to read from the archive the .model file only, in order to extract the version from it
for (mz_uint i = 0; i < num_entries; ++i) {
if (mz_zip_reader_file_stat(&archive, i, &stat)) {
std::string name(stat.m_filename);
std::replace(name.begin(), name.end(), '\\', '/');
if (boost::algorithm::istarts_with(name, MODEL_FOLDER) && boost::algorithm::iends_with(name, MODEL_EXTENSION)) {
try
{
// valid model name -> extract model
if (!_extract_model_from_archive(archive, stat)) {
close_zip_reader(&archive);
add_error("Archive does not contain a valid model");
return false;
}
}
catch (const std::exception& e)
{
// ensure the zip archive is closed and rethrow the exception
close_zip_reader(&archive);
throw Slic3r::FileIOError(e.what());
}
}
}
}
// we then loop again the entries to read other files stored in the archive
for (mz_uint i = 0; i < num_entries; ++i) {
if (mz_zip_reader_file_stat(&archive, i, &stat)) {
std::string name(stat.m_filename);
std::replace(name.begin(), name.end(), '\\', '/');
/*
if (boost::algorithm::iequals(name, LAYER_HEIGHTS_PROFILE_FILE)) {
// extract slic3r layer heights profile file
_extract_layer_heights_profile_config_from_archive(archive, stat);
}
else if (boost::algorithm::iequals(name, LAYER_CONFIG_RANGES_FILE)) {
// extract slic3r layer config ranges file
_extract_layer_config_ranges_from_archive(archive, stat, config_substitutions);
}
else if (boost::algorithm::iequals(name, SLA_SUPPORT_POINTS_FILE)) {
// extract sla support points file
_extract_sla_support_points_from_archive(archive, stat);
}
else if (boost::algorithm::iequals(name, SLA_DRAIN_HOLES_FILE)) {
// extract sla support points file
_extract_sla_drain_holes_from_archive(archive, stat);
}
else if (boost::algorithm::iequals(name, PRINT_CONFIG_FILE)) {
// extract slic3r print config file
_extract_print_config_from_archive(archive, stat, config, config_substitutions, filename);
}
else if (boost::algorithm::iequals(name, CUSTOM_GCODE_PER_PRINT_Z_FILE)) {
// extract slic3r layer config ranges file
_extract_custom_gcode_per_print_z_from_archive(archive, stat);
}
*/
// only read the model config for Prusa 3mf
if (boost::algorithm::iequals(name, MODEL_CONFIG_FILE)) {
// extract slic3r model config file
if (!_extract_model_config_from_archive(archive, stat, model)) {
close_zip_reader(&archive);
add_error("Archive does not contain a valid model config");
return false;
}
}
}
}
close_zip_reader(&archive);
if (m_version == 0) {
// if the 3mf was not produced by PrusaSlicer and there is more than one instance,
// split the object in as many objects as instances
size_t curr_models_count = m_model->objects.size();
size_t i = 0;
while (i < curr_models_count) {
ModelObject* model_object = m_model->objects[i];
if (model_object->instances.size() > 1) {
// select the geometry associated with the original model object
const Geometry* geometry = nullptr;
for (const IdToModelObjectMap::value_type& object : m_objects) {
if (object.second == int(i)) {
IdToGeometryMap::const_iterator obj_geometry = m_geometries.find(object.first);
if (obj_geometry == m_geometries.end()) {
add_error("Unable to find object geometry");
return false;
}
geometry = &obj_geometry->second;
break;
}
}
if (geometry == nullptr) {
add_error("Unable to find object geometry");
return false;
}
// use the geometry to create the volumes in the new model objects
ObjectMetadata::VolumeMetadataList volumes(1, { 0, (unsigned int)geometry->triangles.size() - 1 });
// for each instance after the 1st, create a new model object containing only that instance
// and copy into it the geometry
while (model_object->instances.size() > 1) {
ModelObject* new_model_object = m_model->add_object(*model_object);
new_model_object->clear_instances();
new_model_object->add_instance(*model_object->instances.back());
model_object->delete_last_instance();
if (!_generate_volumes(*new_model_object, *geometry, volumes, config_substitutions))
return false;
}
}
++i;
}
}
for (const IdToModelObjectMap::value_type& object : m_objects) {
if (object.second >= int(m_model->objects.size())) {
add_error("Unable to find object");
return false;
}
ModelObject* model_object = m_model->objects[object.second];
IdToGeometryMap::const_iterator obj_geometry = m_geometries.find(object.first);
if (obj_geometry == m_geometries.end()) {
add_error("Unable to find object geometry");
return false;
}
// m_layer_heights_profiles are indexed by a 1 based model object index.
IdToLayerHeightsProfileMap::iterator obj_layer_heights_profile = m_layer_heights_profiles.find(object.second + 1);
if (obj_layer_heights_profile != m_layer_heights_profiles.end())
model_object->layer_height_profile.set(std::move(obj_layer_heights_profile->second));
// m_layer_config_ranges are indexed by a 1 based model object index.
IdToLayerConfigRangesMap::iterator obj_layer_config_ranges = m_layer_config_ranges.find(object.second + 1);
if (obj_layer_config_ranges != m_layer_config_ranges.end())
model_object->layer_config_ranges = std::move(obj_layer_config_ranges->second);
// m_sla_support_points are indexed by a 1 based model object index.
IdToSlaSupportPointsMap::iterator obj_sla_support_points = m_sla_support_points.find(object.second + 1);
if (obj_sla_support_points != m_sla_support_points.end() && !obj_sla_support_points->second.empty()) {
model_object->sla_support_points = std::move(obj_sla_support_points->second);
model_object->sla_points_status = sla::PointsStatus::UserModified;
}
IdToSlaDrainHolesMap::iterator obj_drain_holes = m_sla_drain_holes.find(object.second + 1);
if (obj_drain_holes != m_sla_drain_holes.end() && !obj_drain_holes->second.empty()) {
model_object->sla_drain_holes = std::move(obj_drain_holes->second);
}
ObjectMetadata::VolumeMetadataList volumes;
ObjectMetadata::VolumeMetadataList* volumes_ptr = nullptr;
IdToMetadataMap::iterator obj_metadata = m_objects_metadata.find(object.first);
if (obj_metadata != m_objects_metadata.end()) {
// config data has been found, this model was saved using slic3r pe
// apply object's name and config data
for (const Metadata& metadata : obj_metadata->second.metadata) {
if (metadata.key == "name")
model_object->name = metadata.value;
else
model_object->config.set_deserialize(metadata.key, metadata.value, config_substitutions);
}
// select object's detected volumes
volumes_ptr = &obj_metadata->second.volumes;
}
else {
// config data not found, this model was not saved using slic3r pe
// add the entire geometry as the single volume to generate
volumes.emplace_back(0, (int)obj_geometry->second.triangles.size() - 1);
// select as volumes
volumes_ptr = &volumes;
}
if (!_generate_volumes(*model_object, obj_geometry->second, *volumes_ptr, config_substitutions))
return false;
}
int object_idx = 0;
for (ModelObject* o : model.objects) {
int volume_idx = 0;
for (ModelVolume* v : o->volumes) {
if (v->source.input_file.empty() && v->type() == ModelVolumeType::MODEL_PART) {
v->source.input_file = filename;
if (v->source.volume_idx == -1)
v->source.volume_idx = volume_idx;
if (v->source.object_idx == -1)
v->source.object_idx = object_idx;
}
++volume_idx;
}
++object_idx;
}
//BBS: copy object isteadof instance
int object_size = model.objects.size();
for (int obj_index = 0; obj_index < object_size; obj_index ++) {
ModelObject* object = model.objects[obj_index];
while (object->instances.size() > 1) {
ModelObject* new_model_object = model.add_object(*object);
new_model_object->clear_instances();
new_model_object->add_instance(*object->instances.back());
object->delete_last_instance();
}
}
// // fixes the min z of the model if negative
// model.adjust_min_z();
return true;
}
bool _3MF_Importer::_extract_model_from_archive(mz_zip_archive& archive, const mz_zip_archive_file_stat& stat)
{
if (stat.m_uncomp_size == 0) {
add_error("Found invalid size");
return false;
}
_destroy_xml_parser();
m_xml_parser = XML_ParserCreate(nullptr);
if (m_xml_parser == nullptr) {
add_error("Unable to create parser");
return false;
}
XML_SetUserData(m_xml_parser, (void*)this);
XML_SetElementHandler(m_xml_parser, _3MF_Importer::_handle_start_model_xml_element, _3MF_Importer::_handle_end_model_xml_element);
XML_SetCharacterDataHandler(m_xml_parser, _3MF_Importer::_handle_model_xml_characters);
struct CallbackData
{
XML_Parser& parser;
_3MF_Importer& importer;
const mz_zip_archive_file_stat& stat;
CallbackData(XML_Parser& parser, _3MF_Importer& importer, const mz_zip_archive_file_stat& stat) : parser(parser), importer(importer), stat(stat) {}
};
CallbackData data(m_xml_parser, *this, stat);
mz_bool res = 0;
try
{
res = mz_zip_reader_extract_file_to_callback(&archive, stat.m_filename, [](void* pOpaque, mz_uint64 file_ofs, const void* pBuf, size_t n)->size_t {
CallbackData* data = (CallbackData*)pOpaque;
if (!XML_Parse(data->parser, (const char*)pBuf, (int)n, (file_ofs + n == data->stat.m_uncomp_size) ? 1 : 0) || data->importer.parse_error()) {
char error_buf[1024];
::sprintf(error_buf, "Error (%s) while parsing '%s' at line %d", data->importer.parse_error_message(), data->stat.m_filename, (int)XML_GetCurrentLineNumber(data->parser));
throw Slic3r::FileIOError(error_buf);
}
return n;
}, &data, 0);
}
catch (const version_error& e)
{
// rethrow the exception
throw Slic3r::FileIOError(e.what());
}
catch (std::exception& e)
{
add_error(e.what());
return false;
}
if (res == 0) {
add_error("Error while extracting model data from zip archive");
return false;
}
return true;
}
void _3MF_Importer::_extract_print_config_from_archive(
mz_zip_archive& archive, const mz_zip_archive_file_stat& stat,
DynamicPrintConfig& config, ConfigSubstitutionContext& config_substitutions,
const std::string& archive_filename)
{
if (stat.m_uncomp_size > 0) {
std::string buffer((size_t)stat.m_uncomp_size, 0);
mz_bool res = mz_zip_reader_extract_file_to_mem(&archive, stat.m_filename, (void*)buffer.data(), (size_t)stat.m_uncomp_size, 0);
if (res == 0) {
add_error("Error while reading config data to buffer");
return;
}
//FIXME Loading a "will be one day a legacy format" of configuration in a form of a G-code comment.
// Each config line is prefixed with a semicolon (G-code comment), that is ugly.
// Replacing the legacy function with load_from_ini_string_commented leads to issues when
// parsing 3MFs from before PrusaSlicer 2.0.0 (which can have duplicated entries in the INI.
// See https://github.com/prusa3d/PrusaSlicer/issues/7155. We'll revert it for now.
//config_substitutions.substitutions = config.load_from_ini_string_commented(std::move(buffer), config_substitutions.rule);
ConfigBase::load_from_gcode_string_legacy(config, buffer.data(), config_substitutions);
}
}
void _3MF_Importer::_extract_layer_heights_profile_config_from_archive(mz_zip_archive& archive, const mz_zip_archive_file_stat& stat)
{
if (stat.m_uncomp_size > 0) {
std::string buffer((size_t)stat.m_uncomp_size, 0);
mz_bool res = mz_zip_reader_extract_file_to_mem(&archive, stat.m_filename, (void*)buffer.data(), (size_t)stat.m_uncomp_size, 0);
if (res == 0) {
add_error("Error while reading layer heights profile data to buffer");
return;
}
if (buffer.back() == '\n')
buffer.pop_back();
std::vector<std::string> objects;
boost::split(objects, buffer, boost::is_any_of("\n"), boost::token_compress_off);
for (const std::string& object : objects) {
std::vector<std::string> object_data;
boost::split(object_data, object, boost::is_any_of("|"), boost::token_compress_off);
if (object_data.size() != 2) {
add_error("Error while reading object data");
continue;
}
std::vector<std::string> object_data_id;
boost::split(object_data_id, object_data[0], boost::is_any_of("="), boost::token_compress_off);
if (object_data_id.size() != 2) {
add_error("Error while reading object id");
continue;
}
int object_id = std::atoi(object_data_id[1].c_str());
if (object_id == 0) {
add_error("Found invalid object id");
continue;
}
IdToLayerHeightsProfileMap::iterator object_item = m_layer_heights_profiles.find(object_id);
if (object_item != m_layer_heights_profiles.end()) {
add_error("Found duplicated layer heights profile");
continue;
}
std::vector<std::string> object_data_profile;
boost::split(object_data_profile, object_data[1], boost::is_any_of(";"), boost::token_compress_off);
if (object_data_profile.size() <= 4 || object_data_profile.size() % 2 != 0) {
add_error("Found invalid layer heights profile");
continue;
}
std::vector<coordf_t> profile;
profile.reserve(object_data_profile.size());
for (const std::string& value : object_data_profile) {
profile.push_back((coordf_t)std::atof(value.c_str()));
}
m_layer_heights_profiles.insert({ object_id, profile });
}
}
}
void _3MF_Importer::_extract_layer_config_ranges_from_archive(mz_zip_archive& archive, const mz_zip_archive_file_stat& stat, ConfigSubstitutionContext& config_substitutions)
{
if (stat.m_uncomp_size > 0) {
std::string buffer((size_t)stat.m_uncomp_size, 0);
mz_bool res = mz_zip_reader_extract_file_to_mem(&archive, stat.m_filename, (void*)buffer.data(), (size_t)stat.m_uncomp_size, 0);
if (res == 0) {
add_error("Error while reading layer config ranges data to buffer");
return;
}
std::istringstream iss(buffer); // wrap returned xml to istringstream
pt::ptree objects_tree;
pt::read_xml(iss, objects_tree);
for (const auto& object : objects_tree.get_child("objects")) {
pt::ptree object_tree = object.second;
int obj_idx = object_tree.get<int>("<xmlattr>.id", -1);
if (obj_idx <= 0) {
add_error("Found invalid object id");
continue;
}
IdToLayerConfigRangesMap::iterator object_item = m_layer_config_ranges.find(obj_idx);
if (object_item != m_layer_config_ranges.end()) {
add_error("Found duplicated layer config range");
continue;
}
t_layer_config_ranges config_ranges;
for (const auto& range : object_tree) {
if (range.first != "range")
continue;
pt::ptree range_tree = range.second;
double min_z = range_tree.get<double>("<xmlattr>.min_z");
double max_z = range_tree.get<double>("<xmlattr>.max_z");
// get Z range information
DynamicPrintConfig config;
for (const auto& option : range_tree) {
if (option.first != "option")
continue;
std::string opt_key = option.second.get<std::string>("<xmlattr>.opt_key");
std::string value = option.second.data();
config.set_deserialize(opt_key, value, config_substitutions);
}
config_ranges[{ min_z, max_z }].assign_config(std::move(config));
}
if (!config_ranges.empty())
m_layer_config_ranges.insert({ obj_idx, std::move(config_ranges) });
}
}
}
void _3MF_Importer::_extract_sla_support_points_from_archive(mz_zip_archive& archive, const mz_zip_archive_file_stat& stat)
{
if (stat.m_uncomp_size > 0) {
std::string buffer((size_t)stat.m_uncomp_size, 0);
mz_bool res = mz_zip_reader_extract_file_to_mem(&archive, stat.m_filename, (void*)buffer.data(), (size_t)stat.m_uncomp_size, 0);
if (res == 0) {
add_error("Error while reading sla support points data to buffer");
return;
}
if (buffer.back() == '\n')
buffer.pop_back();
std::vector<std::string> objects;
boost::split(objects, buffer, boost::is_any_of("\n"), boost::token_compress_off);
// Info on format versioning - see 3mf.hpp
int version = 0;
std::string key("support_points_format_version=");
if (!objects.empty() && objects[0].find(key) != std::string::npos) {
objects[0].erase(objects[0].begin(), objects[0].begin() + long(key.size())); // removes the string
version = std::stoi(objects[0]);
objects.erase(objects.begin()); // pop the header
}
for (const std::string& object : objects) {
std::vector<std::string> object_data;
boost::split(object_data, object, boost::is_any_of("|"), boost::token_compress_off);
if (object_data.size() != 2) {
add_error("Error while reading object data");
continue;
}
std::vector<std::string> object_data_id;
boost::split(object_data_id, object_data[0], boost::is_any_of("="), boost::token_compress_off);
if (object_data_id.size() != 2) {
add_error("Error while reading object id");
continue;
}
int object_id = std::atoi(object_data_id[1].c_str());
if (object_id == 0) {
add_error("Found invalid object id");
continue;
}
IdToSlaSupportPointsMap::iterator object_item = m_sla_support_points.find(object_id);
if (object_item != m_sla_support_points.end()) {
add_error("Found duplicated SLA support points");
continue;
}
std::vector<std::string> object_data_points;
boost::split(object_data_points, object_data[1], boost::is_any_of(" "), boost::token_compress_off);
std::vector<sla::SupportPoint> sla_support_points;
if (version == 0) {
for (unsigned int i=0; i<object_data_points.size(); i+=3)
sla_support_points.emplace_back(float(std::atof(object_data_points[i+0].c_str())),
float(std::atof(object_data_points[i+1].c_str())),
float(std::atof(object_data_points[i+2].c_str())),
0.4f,
false);
}
if (version == 1) {
for (unsigned int i=0; i<object_data_points.size(); i+=5)
sla_support_points.emplace_back(float(std::atof(object_data_points[i+0].c_str())),
float(std::atof(object_data_points[i+1].c_str())),
float(std::atof(object_data_points[i+2].c_str())),
float(std::atof(object_data_points[i+3].c_str())),
//FIXME storing boolean as 0 / 1 and importing it as float.
std::abs(std::atof(object_data_points[i+4].c_str()) - 1.) < EPSILON);
}
if (!sla_support_points.empty())
m_sla_support_points.insert({ object_id, sla_support_points });
}
}
}
void _3MF_Importer::_extract_sla_drain_holes_from_archive(mz_zip_archive& archive, const mz_zip_archive_file_stat& stat)
{
if (stat.m_uncomp_size > 0) {
std::string buffer(size_t(stat.m_uncomp_size), 0);
mz_bool res = mz_zip_reader_extract_file_to_mem(&archive, stat.m_filename, (void*)buffer.data(), (size_t)stat.m_uncomp_size, 0);
if (res == 0) {
add_error("Error while reading sla support points data to buffer");
return;
}
if (buffer.back() == '\n')
buffer.pop_back();
std::vector<std::string> objects;
boost::split(objects, buffer, boost::is_any_of("\n"), boost::token_compress_off);
// Info on format versioning - see 3mf.hpp
int version = 0;
std::string key("drain_holes_format_version=");
if (!objects.empty() && objects[0].find(key) != std::string::npos) {
objects[0].erase(objects[0].begin(), objects[0].begin() + long(key.size())); // removes the string
version = std::stoi(objects[0]);
objects.erase(objects.begin()); // pop the header
}
for (const std::string& object : objects) {
std::vector<std::string> object_data;
boost::split(object_data, object, boost::is_any_of("|"), boost::token_compress_off);
if (object_data.size() != 2) {
add_error("Error while reading object data");
continue;
}
std::vector<std::string> object_data_id;
boost::split(object_data_id, object_data[0], boost::is_any_of("="), boost::token_compress_off);
if (object_data_id.size() != 2) {
add_error("Error while reading object id");
continue;
}
int object_id = std::atoi(object_data_id[1].c_str());
if (object_id == 0) {
add_error("Found invalid object id");
continue;
}
IdToSlaDrainHolesMap::iterator object_item = m_sla_drain_holes.find(object_id);
if (object_item != m_sla_drain_holes.end()) {
add_error("Found duplicated SLA drain holes");
continue;
}
std::vector<std::string> object_data_points;
boost::split(object_data_points, object_data[1], boost::is_any_of(" "), boost::token_compress_off);
sla::DrainHoles sla_drain_holes;
if (version == 1) {
for (unsigned int i=0; i<object_data_points.size(); i+=8)
sla_drain_holes.emplace_back(Vec3f{float(std::atof(object_data_points[i+0].c_str())),
float(std::atof(object_data_points[i+1].c_str())),
float(std::atof(object_data_points[i+2].c_str()))},
Vec3f{float(std::atof(object_data_points[i+3].c_str())),
float(std::atof(object_data_points[i+4].c_str())),
float(std::atof(object_data_points[i+5].c_str()))},
float(std::atof(object_data_points[i+6].c_str())),
float(std::atof(object_data_points[i+7].c_str())));
}
// The holes are saved elevated above the mesh and deeper (bad idea indeed).
// This is retained for compatibility.
// Place the hole to the mesh and make it shallower to compensate.
// The offset is 1 mm above the mesh.
for (sla::DrainHole& hole : sla_drain_holes) {
hole.pos += hole.normal.normalized();
hole.height -= 1.f;
}
if (!sla_drain_holes.empty())
m_sla_drain_holes.insert({ object_id, sla_drain_holes });
}
}
}
bool _3MF_Importer::_extract_model_config_from_archive(mz_zip_archive& archive, const mz_zip_archive_file_stat& stat, Model& model)
{
if (stat.m_uncomp_size == 0) {
add_error("Found invalid size");
return false;
}
_destroy_xml_parser();
m_xml_parser = XML_ParserCreate(nullptr);
if (m_xml_parser == nullptr) {
add_error("Unable to create parser");
return false;
}
XML_SetUserData(m_xml_parser, (void*)this);
XML_SetElementHandler(m_xml_parser, _3MF_Importer::_handle_start_config_xml_element, _3MF_Importer::_handle_end_config_xml_element);
void* parser_buffer = XML_GetBuffer(m_xml_parser, (int)stat.m_uncomp_size);
if (parser_buffer == nullptr) {
add_error("Unable to create buffer");
return false;
}
mz_bool res = mz_zip_reader_extract_file_to_mem(&archive, stat.m_filename, parser_buffer, (size_t)stat.m_uncomp_size, 0);
if (res == 0) {
add_error("Error while reading config data to buffer");
return false;
}
if (!XML_ParseBuffer(m_xml_parser, (int)stat.m_uncomp_size, 1)) {
char error_buf[1024];
::sprintf(error_buf, "Error (%s) while parsing xml file at line %d", XML_ErrorString(XML_GetErrorCode(m_xml_parser)), (int)XML_GetCurrentLineNumber(m_xml_parser));
add_error(error_buf);
return false;
}
return true;
}
void _3MF_Importer::_extract_custom_gcode_per_print_z_from_archive(::mz_zip_archive &archive, const mz_zip_archive_file_stat &stat)
{
//if (stat.m_uncomp_size > 0) {
// std::string buffer((size_t)stat.m_uncomp_size, 0);
// mz_bool res = mz_zip_reader_extract_file_to_mem(&archive, stat.m_filename, (void*)buffer.data(), (size_t)stat.m_uncomp_size, 0);
// if (res == 0) {
// add_error("Error while reading custom Gcodes per height data to buffer");
// return;
// }
// std::istringstream iss(buffer); // wrap returned xml to istringstream
// pt::ptree main_tree;
// pt::read_xml(iss, main_tree);
// if (main_tree.front().first != "custom_gcodes_per_print_z")
// return;
// pt::ptree code_tree = main_tree.front().second;
// m_model->custom_gcode_per_print_z.gcodes.clear();
// for (const auto& code : code_tree) {
// if (code.first == "mode") {
// pt::ptree tree = code.second;
// std::string mode = tree.get<std::string>("<xmlattr>.value");
// m_model->custom_gcode_per_print_z.mode = mode == CustomGCode::SingleExtruderMode ? CustomGCode::Mode::SingleExtruder :
// mode == CustomGCode::MultiAsSingleMode ? CustomGCode::Mode::MultiAsSingle :
// CustomGCode::Mode::MultiExtruder;
// }
// if (code.first != "code")
// continue;
// pt::ptree tree = code.second;
// double print_z = tree.get<double> ("<xmlattr>.print_z" );
// int extruder = tree.get<int> ("<xmlattr>.extruder");
// std::string color = tree.get<std::string> ("<xmlattr>.color" );
// CustomGCode::Type type;
// std::string extra;
// pt::ptree attr_tree = tree.find("<xmlattr>")->second;
// if (attr_tree.find("type") == attr_tree.not_found()) {
// // It means that data was saved in old version (2.2.0 and older) of PrusaSlicer
// // read old data ...
// std::string gcode = tree.get<std::string> ("<xmlattr>.gcode");
// // ... and interpret them to the new data
// type = gcode == "M600" ? CustomGCode::ColorChange :
// gcode == "M601" ? CustomGCode::PausePrint :
// gcode == "tool_change" ? CustomGCode::ToolChange : CustomGCode::Custom;
// extra = type == CustomGCode::PausePrint ? color :
// type == CustomGCode::Custom ? gcode : "";
// }
// else {
// type = static_cast<CustomGCode::Type>(tree.get<int>("<xmlattr>.type"));
// extra = tree.get<std::string>("<xmlattr>.extra");
// }
// m_model->custom_gcode_per_print_z.gcodes.push_back(CustomGCode::Item{print_z, type, extruder, color, extra}) ;
// }
//}
}
void _3MF_Importer::_handle_start_model_xml_element(const char* name, const char** attributes)
{
if (m_xml_parser == nullptr)
return;
bool res = true;
unsigned int num_attributes = (unsigned int)XML_GetSpecifiedAttributeCount(m_xml_parser);
if (::strcmp(MODEL_TAG, name) == 0)
res = _handle_start_model(attributes, num_attributes);
else if (::strcmp(RESOURCES_TAG, name) == 0)
res = _handle_start_resources(attributes, num_attributes);
else if (::strcmp(OBJECT_TAG, name) == 0)
res = _handle_start_object(attributes, num_attributes);
else if (::strcmp(MESH_TAG, name) == 0)
res = _handle_start_mesh(attributes, num_attributes);
else if (::strcmp(VERTICES_TAG, name) == 0)
res = _handle_start_vertices(attributes, num_attributes);
else if (::strcmp(VERTEX_TAG, name) == 0)
res = _handle_start_vertex(attributes, num_attributes);
else if (::strcmp(TRIANGLES_TAG, name) == 0)
res = _handle_start_triangles(attributes, num_attributes);
else if (::strcmp(TRIANGLE_TAG, name) == 0)
res = _handle_start_triangle(attributes, num_attributes);
else if (::strcmp(COMPONENTS_TAG, name) == 0)
res = _handle_start_components(attributes, num_attributes);
else if (::strcmp(COMPONENT_TAG, name) == 0)
res = _handle_start_component(attributes, num_attributes);
else if (::strcmp(BUILD_TAG, name) == 0)
res = _handle_start_build(attributes, num_attributes);
else if (::strcmp(ITEM_TAG, name) == 0)
res = _handle_start_item(attributes, num_attributes);
else if (::strcmp(METADATA_TAG, name) == 0)
res = _handle_start_metadata(attributes, num_attributes);
if (!res)
_stop_xml_parser();
}
void _3MF_Importer::_handle_end_model_xml_element(const char* name)
{
if (m_xml_parser == nullptr)
return;
bool res = true;
if (::strcmp(MODEL_TAG, name) == 0)
res = _handle_end_model();
else if (::strcmp(RESOURCES_TAG, name) == 0)
res = _handle_end_resources();
else if (::strcmp(OBJECT_TAG, name) == 0)
res = _handle_end_object();
else if (::strcmp(MESH_TAG, name) == 0)
res = _handle_end_mesh();
else if (::strcmp(VERTICES_TAG, name) == 0)
res = _handle_end_vertices();
else if (::strcmp(VERTEX_TAG, name) == 0)
res = _handle_end_vertex();
else if (::strcmp(TRIANGLES_TAG, name) == 0)
res = _handle_end_triangles();
else if (::strcmp(TRIANGLE_TAG, name) == 0)
res = _handle_end_triangle();
else if (::strcmp(COMPONENTS_TAG, name) == 0)
res = _handle_end_components();
else if (::strcmp(COMPONENT_TAG, name) == 0)
res = _handle_end_component();
else if (::strcmp(BUILD_TAG, name) == 0)
res = _handle_end_build();
else if (::strcmp(ITEM_TAG, name) == 0)
res = _handle_end_item();
else if (::strcmp(METADATA_TAG, name) == 0)
res = _handle_end_metadata();
if (!res)
_stop_xml_parser();
}
void _3MF_Importer::_handle_model_xml_characters(const XML_Char* s, int len)
{
m_curr_characters.append(s, len);
}
void _3MF_Importer::_handle_start_config_xml_element(const char* name, const char** attributes)
{
if (m_xml_parser == nullptr)
return;
bool res = true;
unsigned int num_attributes = (unsigned int)XML_GetSpecifiedAttributeCount(m_xml_parser);
if (::strcmp(CONFIG_TAG, name) == 0)
res = _handle_start_config(attributes, num_attributes);
else if (::strcmp(OBJECT_TAG, name) == 0)
res = _handle_start_config_object(attributes, num_attributes);
else if (::strcmp(VOLUME_TAG, name) == 0)
res = _handle_start_config_volume(attributes, num_attributes);
else if (::strcmp(MESH_TAG, name) == 0)
res = _handle_start_config_volume_mesh(attributes, num_attributes);
else if (::strcmp(METADATA_TAG, name) == 0)
res = _handle_start_config_metadata(attributes, num_attributes);
if (!res)
_stop_xml_parser();
}
void _3MF_Importer::_handle_end_config_xml_element(const char* name)
{
if (m_xml_parser == nullptr)
return;
bool res = true;
if (::strcmp(CONFIG_TAG, name) == 0)
res = _handle_end_config();
else if (::strcmp(OBJECT_TAG, name) == 0)
res = _handle_end_config_object();
else if (::strcmp(VOLUME_TAG, name) == 0)
res = _handle_end_config_volume();
else if (::strcmp(MESH_TAG, name) == 0)
res = _handle_end_config_volume_mesh();
else if (::strcmp(METADATA_TAG, name) == 0)
res = _handle_end_config_metadata();
if (!res)
_stop_xml_parser();
}
bool _3MF_Importer::_handle_start_model(const char** attributes, unsigned int num_attributes)
{
m_unit_factor = get_unit_factor(get_attribute_value_string(attributes, num_attributes, UNIT_ATTR));
return true;
}
bool _3MF_Importer::_handle_end_model()
{
// deletes all non-built or non-instanced objects
for (const IdToModelObjectMap::value_type& object : m_objects) {
if (object.second >= int(m_model->objects.size())) {
add_error("Unable to find object");
return false;
}
ModelObject *model_object = m_model->objects[object.second];
if (model_object != nullptr && model_object->instances.size() == 0)
m_model->delete_object(model_object);
}
if (m_version == 0) {
// if the 3mf was not produced by PrusaSlicer and there is only one object,
// set the object name to match the filename
if (m_model->objects.size() == 1)
m_model->objects.front()->name = m_name;
}
// applies instances' matrices
for (Instance& instance : m_instances) {
if (instance.instance != nullptr && instance.instance->get_object() != nullptr)
// apply the transform to the instance
_apply_transform(*instance.instance, instance.transform);
}
return true;
}
bool _3MF_Importer::_handle_start_resources(const char** attributes, unsigned int num_attributes)
{
// do nothing
return true;
}
bool _3MF_Importer::_handle_end_resources()
{
// do nothing
return true;
}
bool _3MF_Importer::_handle_start_object(const char** attributes, unsigned int num_attributes)
{
// reset current data
m_curr_object.reset();
if (is_valid_object_type(get_attribute_value_string(attributes, num_attributes, TYPE_ATTR))) {
// create new object (it may be removed later if no instances are generated from it)
m_curr_object.model_object_idx = (int)m_model->objects.size();
m_curr_object.object = m_model->add_object();
if (m_curr_object.object == nullptr) {
add_error("Unable to create object");
return false;
}
// set object data
m_curr_object.object->name = get_attribute_value_string(attributes, num_attributes, NAME_ATTR);
if (m_curr_object.object->name.empty())
m_curr_object.object->name = m_name + "_" + std::to_string(m_model->objects.size());
m_curr_object.id = get_attribute_value_int(attributes, num_attributes, ID_ATTR);
}
return true;
}
bool _3MF_Importer::_handle_end_object()
{
if (m_curr_object.object != nullptr) {
if (m_curr_object.geometry.empty()) {
// no geometry defined
// remove the object from the model
m_model->delete_object(m_curr_object.object);
if (m_curr_object.components.empty()) {
// no components defined -> invalid object, delete it
IdToModelObjectMap::iterator object_item = m_objects.find(m_curr_object.id);
if (object_item != m_objects.end())
m_objects.erase(object_item);
IdToAliasesMap::iterator alias_item = m_objects_aliases.find(m_curr_object.id);
if (alias_item != m_objects_aliases.end())
m_objects_aliases.erase(alias_item);
}
else
// adds components to aliases
m_objects_aliases.insert({ m_curr_object.id, m_curr_object.components });
}
else {
// geometry defined, store it for later use
m_geometries.insert({ m_curr_object.id, std::move(m_curr_object.geometry) });
// stores the object for later use
if (m_objects.find(m_curr_object.id) == m_objects.end()) {
m_objects.insert({ m_curr_object.id, m_curr_object.model_object_idx });
m_objects_aliases.insert({ m_curr_object.id, { 1, Component(m_curr_object.id) } }); // aliases itself
}
else {
add_error("Found object with duplicate id");
return false;
}
}
}
return true;
}
bool _3MF_Importer::_handle_start_mesh(const char** attributes, unsigned int num_attributes)
{
// reset current geometry
m_curr_object.geometry.reset();
return true;
}
bool _3MF_Importer::_handle_end_mesh()
{
// do nothing
return true;
}
bool _3MF_Importer::_handle_start_vertices(const char** attributes, unsigned int num_attributes)
{
// reset current vertices
m_curr_object.geometry.vertices.clear();
return true;
}
bool _3MF_Importer::_handle_end_vertices()
{
// do nothing
return true;
}
bool _3MF_Importer::_handle_start_vertex(const char** attributes, unsigned int num_attributes)
{
// appends the vertex coordinates
// missing values are set equal to ZERO
m_curr_object.geometry.vertices.emplace_back(
m_unit_factor * get_attribute_value_float(attributes, num_attributes, X_ATTR),
m_unit_factor * get_attribute_value_float(attributes, num_attributes, Y_ATTR),
m_unit_factor * get_attribute_value_float(attributes, num_attributes, Z_ATTR));
return true;
}
bool _3MF_Importer::_handle_end_vertex()
{
// do nothing
return true;
}
bool _3MF_Importer::_handle_start_triangles(const char** attributes, unsigned int num_attributes)
{
// reset current triangles
m_curr_object.geometry.triangles.clear();
return true;
}
bool _3MF_Importer::_handle_end_triangles()
{
// do nothing
return true;
}
bool _3MF_Importer::_handle_start_triangle(const char** attributes, unsigned int num_attributes)
{
// we are ignoring the following attributes:
// p1
// p2
// p3
// pid
// see specifications
// appends the triangle's vertices indices
// missing values are set equal to ZERO
m_curr_object.geometry.triangles.emplace_back(
get_attribute_value_int(attributes, num_attributes, V1_ATTR),
get_attribute_value_int(attributes, num_attributes, V2_ATTR),
get_attribute_value_int(attributes, num_attributes, V3_ATTR));
m_curr_object.geometry.custom_supports.push_back(get_attribute_value_string(attributes, num_attributes, CUSTOM_SUPPORTS_ATTR));
m_curr_object.geometry.custom_seam.push_back(get_attribute_value_string(attributes, num_attributes, CUSTOM_SEAM_ATTR));
m_curr_object.geometry.mmu_segmentation.push_back(get_attribute_value_string(attributes, num_attributes, MMU_SEGMENTATION_ATTR));
return true;
}
bool _3MF_Importer::_handle_end_triangle()
{
// do nothing
return true;
}
bool _3MF_Importer::_handle_start_components(const char** attributes, unsigned int num_attributes)
{
// reset current components
m_curr_object.components.clear();
return true;
}
bool _3MF_Importer::_handle_end_components()
{
// do nothing
return true;
}
bool _3MF_Importer::_handle_start_component(const char** attributes, unsigned int num_attributes)
{
int object_id = get_attribute_value_int(attributes, num_attributes, OBJECTID_ATTR);
Transform3d transform = get_transform_from_3mf_specs_string(get_attribute_value_string(attributes, num_attributes, TRANSFORM_ATTR));
IdToModelObjectMap::iterator object_item = m_objects.find(object_id);
if (object_item == m_objects.end()) {
IdToAliasesMap::iterator alias_item = m_objects_aliases.find(object_id);
if (alias_item == m_objects_aliases.end()) {
add_error("Found component with invalid object id");
return false;
}
}
m_curr_object.components.emplace_back(object_id, transform);
return true;
}
bool _3MF_Importer::_handle_end_component()
{
// do nothing
return true;
}
bool _3MF_Importer::_handle_start_build(const char** attributes, unsigned int num_attributes)
{
// do nothing
return true;
}
bool _3MF_Importer::_handle_end_build()
{
// do nothing
return true;
}
bool _3MF_Importer::_handle_start_item(const char** attributes, unsigned int num_attributes)
{
// we are ignoring the following attributes
// thumbnail
// partnumber
// pid
// pindex
// see specifications
int object_id = get_attribute_value_int(attributes, num_attributes, OBJECTID_ATTR);
Transform3d transform = get_transform_from_3mf_specs_string(get_attribute_value_string(attributes, num_attributes, TRANSFORM_ATTR));
int printable = get_attribute_value_bool(attributes, num_attributes, PRINTABLE_ATTR);
return _create_object_instance(object_id, transform, printable, 1);
}
bool _3MF_Importer::_handle_end_item()
{
// do nothing
return true;
}
bool _3MF_Importer::_handle_start_metadata(const char** attributes, unsigned int num_attributes)
{
m_curr_characters.clear();
std::string name = get_attribute_value_string(attributes, num_attributes, NAME_ATTR);
if (!name.empty())
m_curr_metadata_name = name;
return true;
}
inline static void check_painting_version(unsigned int loaded_version, unsigned int highest_supported_version, const std::string &error_msg)
{
if (loaded_version > highest_supported_version)
throw version_error(error_msg);
}
bool _3MF_Importer::_handle_end_metadata()
{
if (m_curr_metadata_name == SLIC3RPE_3MF_VERSION) {
m_version = (unsigned int)atoi(m_curr_characters.c_str());
if (m_check_version && (m_version > VERSION_3MF_COMPATIBLE)) {
// std::string msg = _(L("The selected 3mf file has been saved with a newer version of " + std::string(SLIC3R_APP_NAME) + " and is not compatible."));
// throw version_error(msg.c_str());
const std::string msg = (boost::format(_(L("The selected 3mf file has been saved with a newer version of %1% and is not compatible."))) % std::string(SLIC3R_APP_NAME)).str();
throw version_error(msg);
}
} else if (m_curr_metadata_name == "Application") {
// Generator application of the 3MF.
// SLIC3R_APP_KEY - SLIC3R_VERSION
if (boost::starts_with(m_curr_characters, "PrusaSlicer-"))
m_prusaslicer_generator_version = Semver::parse(m_curr_characters.substr(12));
} else if (m_curr_metadata_name == SLIC3RPE_FDM_SUPPORTS_PAINTING_VERSION) {
m_fdm_supports_painting_version = (unsigned int) atoi(m_curr_characters.c_str());
check_painting_version(m_fdm_supports_painting_version, FDM_SUPPORTS_PAINTING_VERSION,
_(L("The selected 3MF contains FDM supports painted object using a newer version of PrusaSlicer and is not compatible.")));
} else if (m_curr_metadata_name == SLIC3RPE_SEAM_PAINTING_VERSION) {
m_seam_painting_version = (unsigned int) atoi(m_curr_characters.c_str());
check_painting_version(m_seam_painting_version, SEAM_PAINTING_VERSION,
_(L("The selected 3MF contains seam painted object using a newer version of PrusaSlicer and is not compatible.")));
} else if (m_curr_metadata_name == SLIC3RPE_MM_PAINTING_VERSION) {
m_mm_painting_version = (unsigned int) atoi(m_curr_characters.c_str());
check_painting_version(m_mm_painting_version, MM_PAINTING_VERSION,
_(L("The selected 3MF contains multi-material painted object using a newer version of PrusaSlicer and is not compatible.")));
}
return true;
}
bool _3MF_Importer::_create_object_instance(int object_id, const Transform3d& transform, const bool printable, unsigned int recur_counter)
{
static const unsigned int MAX_RECURSIONS = 10;
// escape from circular aliasing
if (recur_counter > MAX_RECURSIONS) {
add_error("Too many recursions");
return false;
}
IdToAliasesMap::iterator it = m_objects_aliases.find(object_id);
if (it == m_objects_aliases.end()) {
add_error("Found item with invalid object id");
return false;
}
if (it->second.size() == 1 && it->second[0].object_id == object_id) {
// aliasing to itself
IdToModelObjectMap::iterator object_item = m_objects.find(object_id);
if (object_item == m_objects.end() || object_item->second == -1) {
add_error("Found invalid object");
return false;
}
else {
ModelInstance* instance = m_model->objects[object_item->second]->add_instance();
if (instance == nullptr) {
add_error("Unable to add object instance");
return false;
}
instance->printable = printable;
m_instances.emplace_back(instance, transform);
}
}
else {
// recursively process nested components
for (const Component& component : it->second) {
if (!_create_object_instance(component.object_id, transform * component.transform, printable, recur_counter + 1))
return false;
}
}
return true;
}
void _3MF_Importer::_apply_transform(ModelInstance& instance, const Transform3d& transform)
{
Slic3r::Geometry::Transformation t(transform);
// invalid scale value, return
if (!t.get_scaling_factor().all())
return;
instance.set_transformation(t);
}
bool _3MF_Importer::_handle_start_config(const char** attributes, unsigned int num_attributes)
{
// do nothing
return true;
}
bool _3MF_Importer::_handle_end_config()
{
// do nothing
return true;
}
bool _3MF_Importer::_handle_start_config_object(const char** attributes, unsigned int num_attributes)
{
int object_id = get_attribute_value_int(attributes, num_attributes, ID_ATTR);
IdToMetadataMap::iterator object_item = m_objects_metadata.find(object_id);
if (object_item != m_objects_metadata.end()) {
add_error("Found duplicated object id");
return false;
}
// Added because of github #3435, currently not used by PrusaSlicer
// int instances_count_id = get_attribute_value_int(attributes, num_attributes, INSTANCESCOUNT_ATTR);
m_objects_metadata.insert({ object_id, ObjectMetadata() });
m_curr_config.object_id = object_id;
return true;
}
bool _3MF_Importer::_handle_end_config_object()
{
// do nothing
return true;
}
bool _3MF_Importer::_handle_start_config_volume(const char** attributes, unsigned int num_attributes)
{
IdToMetadataMap::iterator object = m_objects_metadata.find(m_curr_config.object_id);
if (object == m_objects_metadata.end()) {
add_error("Cannot assign volume to a valid object");
return false;
}
m_curr_config.volume_id = (int)object->second.volumes.size();
unsigned int first_triangle_id = (unsigned int)get_attribute_value_int(attributes, num_attributes, FIRST_TRIANGLE_ID_ATTR);
unsigned int last_triangle_id = (unsigned int)get_attribute_value_int(attributes, num_attributes, LAST_TRIANGLE_ID_ATTR);
object->second.volumes.emplace_back(first_triangle_id, last_triangle_id);
return true;
}
bool _3MF_Importer::_handle_start_config_volume_mesh(const char** attributes, unsigned int num_attributes)
{
IdToMetadataMap::iterator object = m_objects_metadata.find(m_curr_config.object_id);
if (object == m_objects_metadata.end()) {
add_error("Cannot assign volume mesh to a valid object");
return false;
}
if (object->second.volumes.empty()) {
add_error("Cannot assign mesh to a valid olume");
return false;
}
ObjectMetadata::VolumeMetadata& volume = object->second.volumes.back();
int edges_fixed = get_attribute_value_int(attributes, num_attributes, MESH_STAT_EDGES_FIXED );
int degenerate_facets = get_attribute_value_int(attributes, num_attributes, MESH_STAT_DEGENERATED_FACETS);
int facets_removed = get_attribute_value_int(attributes, num_attributes, MESH_STAT_FACETS_REMOVED );
int facets_reversed = get_attribute_value_int(attributes, num_attributes, MESH_STAT_FACETS_RESERVED );
int backwards_edges = get_attribute_value_int(attributes, num_attributes, MESH_STAT_BACKWARDS_EDGES );
volume.mesh_stats = { edges_fixed, degenerate_facets, facets_removed, facets_reversed, backwards_edges };
return true;
}
bool _3MF_Importer::_handle_end_config_volume()
{
// do nothing
return true;
}
bool _3MF_Importer::_handle_end_config_volume_mesh()
{
// do nothing
return true;
}
bool _3MF_Importer::_handle_start_config_metadata(const char** attributes, unsigned int num_attributes)
{
IdToMetadataMap::iterator object = m_objects_metadata.find(m_curr_config.object_id);
if (object == m_objects_metadata.end()) {
add_error("Cannot assign metadata to valid object id");
return false;
}
std::string type = get_attribute_value_string(attributes, num_attributes, TYPE_ATTR);
std::string key = get_attribute_value_string(attributes, num_attributes, KEY_ATTR);
std::string value = get_attribute_value_string(attributes, num_attributes, VALUE_ATTR);
// filter the prusa model config keys
std::vector<std::string> valid_keys = {
"name",
"volume_type",
"matrix",
"source_file",
"source_object_id",
"source_volume_id",
"source_offset_x",
"source_offset_y",
"source_offset_z",
"extruder",
"modifier"
};
auto itor = std::find(valid_keys.begin(), valid_keys.end(), key);
if (itor == valid_keys.end()) {
// do nothing if not valid keys
return true;
}
if (type == OBJECT_TYPE)
object->second.metadata.emplace_back(key, value);
else if (type == VOLUME_TYPE) {
if (size_t(m_curr_config.volume_id) < object->second.volumes.size())
object->second.volumes[m_curr_config.volume_id].metadata.emplace_back(key, value);
}
else {
add_error("Found invalid metadata type");
return false;
}
return true;
}
bool _3MF_Importer::_handle_end_config_metadata()
{
// do nothing
return true;
}
bool _3MF_Importer::_generate_volumes(ModelObject& object, const Geometry& geometry, const ObjectMetadata::VolumeMetadataList& volumes, ConfigSubstitutionContext& config_substitutions)
{
if (!object.volumes.empty()) {
add_error("Found invalid volumes count");
return false;
}
unsigned int geo_tri_count = (unsigned int)geometry.triangles.size();
unsigned int renamed_volumes_count = 0;
for (const ObjectMetadata::VolumeMetadata& volume_data : volumes) {
if (geo_tri_count <= volume_data.first_triangle_id || geo_tri_count <= volume_data.last_triangle_id || volume_data.last_triangle_id < volume_data.first_triangle_id) {
add_error("Found invalid triangle id");
return false;
}
Transform3d volume_matrix_to_object = Transform3d::Identity();
bool has_transform = false;
// extract the volume transformation from the volume's metadata, if present
for (const Metadata& metadata : volume_data.metadata) {
if (metadata.key == MATRIX_KEY) {
volume_matrix_to_object = Slic3r::Geometry::transform3d_from_string(metadata.value);
has_transform = ! volume_matrix_to_object.isApprox(Transform3d::Identity(), 1e-10);
break;
}
}
// splits volume out of imported geometry
indexed_triangle_set its;
its.indices.assign(geometry.triangles.begin() + volume_data.first_triangle_id, geometry.triangles.begin() + volume_data.last_triangle_id + 1);
const size_t triangles_count = its.indices.size();
if (triangles_count == 0) {
add_error("An empty triangle mesh found");
return false;
}
{
int min_id = its.indices.front()[0];
int max_id = min_id;
for (const Vec3i32& face : its.indices) {
for (const int tri_id : face) {
if (tri_id < 0 || tri_id >= int(geometry.vertices.size())) {
add_error("Found invalid vertex id");
return false;
}
min_id = std::min(min_id, tri_id);
max_id = std::max(max_id, tri_id);
}
}
its.vertices.assign(geometry.vertices.begin() + min_id, geometry.vertices.begin() + max_id + 1);
// rebase indices to the current vertices list
for (Vec3i32& face : its.indices)
for (int& tri_id : face)
tri_id -= min_id;
}
if (m_prusaslicer_generator_version &&
*m_prusaslicer_generator_version >= *Semver::parse("2.4.0-alpha1") &&
*m_prusaslicer_generator_version < *Semver::parse("2.4.0-alpha3"))
// PrusaSlicer 2.4.0-alpha2 contained a bug, where all vertices of a single object were saved for each volume the object contained.
// Remove the vertices, that are not referenced by any face.
its_compactify_vertices(its, true);
TriangleMesh triangle_mesh(std::move(its), volume_data.mesh_stats);
if (m_version == 0) {
// if the 3mf was not produced by PrusaSlicer and there is only one instance,
// bake the transformation into the geometry to allow the reload from disk command
// to work properly
if (object.instances.size() == 1) {
triangle_mesh.transform(object.instances.front()->get_transformation().get_matrix(), false);
object.instances.front()->set_transformation(Slic3r::Geometry::Transformation());
//FIXME do the mesh fixing?
}
}
if (triangle_mesh.volume() < 0)
triangle_mesh.flip_triangles();
ModelVolume* volume = object.add_volume(std::move(triangle_mesh));
// stores the volume matrix taken from the metadata, if present
if (has_transform)
volume->source.transform = Slic3r::Geometry::Transformation(volume_matrix_to_object);
// recreate custom supports, seam and mmu segmentation from previously loaded attribute
volume->supported_facets.reserve(triangles_count);
volume->seam_facets.reserve(triangles_count);
volume->mmu_segmentation_facets.reserve(triangles_count);
for (size_t i=0; i<triangles_count; ++i) {
size_t index = volume_data.first_triangle_id + i;
assert(index < geometry.custom_supports.size());
assert(index < geometry.custom_seam.size());
assert(index < geometry.mmu_segmentation.size());
if (! geometry.custom_supports[index].empty())
volume->supported_facets.set_triangle_from_string(i, geometry.custom_supports[index]);
if (! geometry.custom_seam[index].empty())
volume->seam_facets.set_triangle_from_string(i, geometry.custom_seam[index]);
if (! geometry.mmu_segmentation[index].empty())
volume->mmu_segmentation_facets.set_triangle_from_string(i, geometry.mmu_segmentation[index]);
}
volume->supported_facets.shrink_to_fit();
volume->seam_facets.shrink_to_fit();
volume->mmu_segmentation_facets.shrink_to_fit();
// apply the remaining volume's metadata
for (const Metadata& metadata : volume_data.metadata) {
if (metadata.key == NAME_KEY)
volume->name = metadata.value;
else if ((metadata.key == MODIFIER_KEY) && (metadata.value == "1"))
volume->set_type(ModelVolumeType::PARAMETER_MODIFIER);
else if (metadata.key == VOLUME_TYPE_KEY)
volume->set_type(type_from_string(metadata.value));
else if (metadata.key == SOURCE_FILE_KEY)
volume->source.input_file = metadata.value;
else if (metadata.key == SOURCE_OBJECT_ID_KEY)
volume->source.object_idx = ::atoi(metadata.value.c_str());
else if (metadata.key == SOURCE_VOLUME_ID_KEY)
volume->source.volume_idx = ::atoi(metadata.value.c_str());
else if (metadata.key == SOURCE_OFFSET_X_KEY)
volume->source.mesh_offset(0) = ::atof(metadata.value.c_str());
else if (metadata.key == SOURCE_OFFSET_Y_KEY)
volume->source.mesh_offset(1) = ::atof(metadata.value.c_str());
else if (metadata.key == SOURCE_OFFSET_Z_KEY)
volume->source.mesh_offset(2) = ::atof(metadata.value.c_str());
else if (metadata.key == SOURCE_IN_INCHES)
volume->source.is_converted_from_inches = metadata.value == "1";
else if (metadata.key == SOURCE_IN_METERS)
volume->source.is_converted_from_meters = metadata.value == "1";
else
volume->config.set_deserialize(metadata.key, metadata.value, config_substitutions);
}
// this may happen for 3mf saved by 3rd part softwares
if (volume->name.empty()) {
volume->name = object.name;
if (renamed_volumes_count > 0)
volume->name += "_" + std::to_string(renamed_volumes_count + 1);
++renamed_volumes_count;
}
}
return true;
}
void XMLCALL _3MF_Importer::_handle_start_model_xml_element(void* userData, const char* name, const char** attributes)
{
_3MF_Importer* importer = (_3MF_Importer*)userData;
if (importer != nullptr)
importer->_handle_start_model_xml_element(name, attributes);
}
void XMLCALL _3MF_Importer::_handle_end_model_xml_element(void* userData, const char* name)
{
_3MF_Importer* importer = (_3MF_Importer*)userData;
if (importer != nullptr)
importer->_handle_end_model_xml_element(name);
}
void XMLCALL _3MF_Importer::_handle_model_xml_characters(void* userData, const XML_Char* s, int len)
{
_3MF_Importer* importer = (_3MF_Importer*)userData;
if (importer != nullptr)
importer->_handle_model_xml_characters(s, len);
}
void XMLCALL _3MF_Importer::_handle_start_config_xml_element(void* userData, const char* name, const char** attributes)
{
_3MF_Importer* importer = (_3MF_Importer*)userData;
if (importer != nullptr)
importer->_handle_start_config_xml_element(name, attributes);
}
void XMLCALL _3MF_Importer::_handle_end_config_xml_element(void* userData, const char* name)
{
_3MF_Importer* importer = (_3MF_Importer*)userData;
if (importer != nullptr)
importer->_handle_end_config_xml_element(name);
}
class _3MF_Exporter : public _3MF_Base
{
struct BuildItem
{
unsigned int id;
Transform3d transform;
bool printable;
BuildItem(unsigned int id, const Transform3d& transform, const bool printable)
: id(id)
, transform(transform)
, printable(printable)
{
}
};
struct Offsets
{
unsigned int first_vertex_id;
unsigned int first_triangle_id;
unsigned int last_triangle_id;
Offsets(unsigned int first_vertex_id)
: first_vertex_id(first_vertex_id)
, first_triangle_id(-1)
, last_triangle_id(-1)
{
}
};
typedef std::map<const ModelVolume*, Offsets> VolumeToOffsetsMap;
struct ObjectData
{
ModelObject* object;
VolumeToOffsetsMap volumes_offsets;
explicit ObjectData(ModelObject* object)
: object(object)
{
}
};
typedef std::vector<BuildItem> BuildItemsList;
typedef std::map<int, ObjectData> IdToObjectDataMap;
bool m_fullpath_sources{ true };
bool m_zip64 { true };
public:
bool save_model_to_file(const std::string& filename, Model& model, const DynamicPrintConfig* config, bool fullpath_sources, const ThumbnailData* thumbnail_data, bool zip64);
private:
bool _save_model_to_file(const std::string& filename, Model& model, const DynamicPrintConfig* config, const ThumbnailData* thumbnail_data);
bool _add_content_types_file_to_archive(mz_zip_archive& archive);
bool _add_thumbnail_file_to_archive(mz_zip_archive& archive, const ThumbnailData& thumbnail_data);
bool _add_relationships_file_to_archive(mz_zip_archive& archive);
bool _add_model_file_to_archive(const std::string& filename, mz_zip_archive& archive, const Model& model, IdToObjectDataMap& objects_data);
bool _add_object_to_model_stream(mz_zip_writer_staged_context &context, unsigned int& object_id, ModelObject& object, BuildItemsList& build_items, VolumeToOffsetsMap& volumes_offsets);
bool _add_mesh_to_object_stream(mz_zip_writer_staged_context &context, ModelObject& object, VolumeToOffsetsMap& volumes_offsets);
bool _add_build_to_model_stream(std::stringstream& stream, const BuildItemsList& build_items);
bool _add_layer_height_profile_file_to_archive(mz_zip_archive& archive, Model& model);
bool _add_layer_config_ranges_file_to_archive(mz_zip_archive& archive, Model& model);
bool _add_sla_support_points_file_to_archive(mz_zip_archive& archive, Model& model);
bool _add_sla_drain_holes_file_to_archive(mz_zip_archive& archive, Model& model);
bool _add_print_config_file_to_archive(mz_zip_archive& archive, const DynamicPrintConfig &config);
bool _add_model_config_file_to_archive(mz_zip_archive& archive, const Model& model, const IdToObjectDataMap &objects_data);
bool _add_custom_gcode_per_print_z_file_to_archive(mz_zip_archive& archive, Model& model, const DynamicPrintConfig* config);
};
bool _3MF_Exporter::save_model_to_file(const std::string& filename, Model& model, const DynamicPrintConfig* config, bool fullpath_sources, const ThumbnailData* thumbnail_data, bool zip64)
{
clear_errors();
m_fullpath_sources = fullpath_sources;
m_zip64 = zip64;
return _save_model_to_file(filename, model, config, thumbnail_data);
}
bool _3MF_Exporter::_save_model_to_file(const std::string& filename, Model& model, const DynamicPrintConfig* config, const ThumbnailData* thumbnail_data)
{
mz_zip_archive archive;
mz_zip_zero_struct(&archive);
if (!open_zip_writer(&archive, filename)) {
add_error("Unable to open the file");
return false;
}
// Adds content types file ("[Content_Types].xml";).
// The content of this file is the same for each PrusaSlicer 3mf.
if (!_add_content_types_file_to_archive(archive)) {
close_zip_writer(&archive);
boost::filesystem::remove(filename);
return false;
}
if (thumbnail_data != nullptr && thumbnail_data->is_valid()) {
// Adds the file Metadata/thumbnail.png.
if (!_add_thumbnail_file_to_archive(archive, *thumbnail_data)) {
close_zip_writer(&archive);
boost::filesystem::remove(filename);
return false;
}
}
// Adds relationships file ("_rels/.rels").
// The content of this file is the same for each PrusaSlicer 3mf.
// The relationshis file contains a reference to the geometry file "3D/3dmodel.model", the name was chosen to be compatible with CURA.
if (!_add_relationships_file_to_archive(archive)) {
close_zip_writer(&archive);
boost::filesystem::remove(filename);
return false;
}
// Adds model file ("3D/3dmodel.model").
// This is the one and only file that contains all the geometry (vertices and triangles) of all ModelVolumes.
IdToObjectDataMap objects_data;
if (!_add_model_file_to_archive(filename, archive, model, objects_data)) {
close_zip_writer(&archive);
boost::filesystem::remove(filename);
return false;
}
// Adds layer height profile file ("Metadata/Slic3r_PE_layer_heights_profile.txt").
// All layer height profiles of all ModelObjects are stored here, indexed by 1 based index of the ModelObject in Model.
// The index differes from the index of an object ID of an object instance of a 3MF file!
if (!_add_layer_height_profile_file_to_archive(archive, model)) {
close_zip_writer(&archive);
boost::filesystem::remove(filename);
return false;
}
// Adds layer config ranges file ("Metadata/Slic3r_PE_layer_config_ranges.txt").
// All layer height profiles of all ModelObjects are stored here, indexed by 1 based index of the ModelObject in Model.
// The index differes from the index of an object ID of an object instance of a 3MF file!
if (!_add_layer_config_ranges_file_to_archive(archive, model)) {
close_zip_writer(&archive);
boost::filesystem::remove(filename);
return false;
}
// Adds sla support points file ("Metadata/Slic3r_PE_sla_support_points.txt").
// All sla support points of all ModelObjects are stored here, indexed by 1 based index of the ModelObject in Model.
// The index differes from the index of an object ID of an object instance of a 3MF file!
if (!_add_sla_support_points_file_to_archive(archive, model)) {
close_zip_writer(&archive);
boost::filesystem::remove(filename);
return false;
}
if (!_add_sla_drain_holes_file_to_archive(archive, model)) {
close_zip_writer(&archive);
boost::filesystem::remove(filename);
return false;
}
// Adds custom gcode per height file ("Metadata/Prusa_Slicer_custom_gcode_per_print_z.xml").
// All custom gcode per height of whole Model are stored here
if (!_add_custom_gcode_per_print_z_file_to_archive(archive, model, config)) {
close_zip_writer(&archive);
boost::filesystem::remove(filename);
return false;
}
// Adds slic3r print config file ("Metadata/Slic3r_PE.config").
// This file contains the content of FullPrintConfig / SLAFullPrintConfig.
if (config != nullptr) {
if (!_add_print_config_file_to_archive(archive, *config)) {
close_zip_writer(&archive);
boost::filesystem::remove(filename);
return false;
}
}
// Adds slic3r model config file ("Metadata/Slic3r_PE_model.config").
// This file contains all the attributes of all ModelObjects and their ModelVolumes (names, parameter overrides).
// As there is just a single Indexed Triangle Set data stored per ModelObject, offsets of volumes into their respective Indexed Triangle Set data
// is stored here as well.
if (!_add_model_config_file_to_archive(archive, model, objects_data)) {
close_zip_writer(&archive);
boost::filesystem::remove(filename);
return false;
}
if (!mz_zip_writer_finalize_archive(&archive)) {
close_zip_writer(&archive);
boost::filesystem::remove(filename);
add_error("Unable to finalize the archive");
return false;
}
close_zip_writer(&archive);
return true;
}
bool _3MF_Exporter::_add_content_types_file_to_archive(mz_zip_archive& archive)
{
std::stringstream stream;
stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
stream << "<Types xmlns=\"http://schemas.openxmlformats.org/package/2006/content-types\">\n";
stream << " <Default Extension=\"rels\" ContentType=\"application/vnd.openxmlformats-package.relationships+xml\"/>\n";
stream << " <Default Extension=\"model\" ContentType=\"application/vnd.ms-package.3dmanufacturing-3dmodel+xml\"/>\n";
stream << " <Default Extension=\"png\" ContentType=\"image/png\"/>\n";
stream << "</Types>";
std::string out = stream.str();
if (!mz_zip_writer_add_mem(&archive, CONTENT_TYPES_FILE.c_str(), (const void*)out.data(), out.length(), MZ_DEFAULT_COMPRESSION)) {
add_error("Unable to add content types file to archive");
return false;
}
return true;
}
bool _3MF_Exporter::_add_thumbnail_file_to_archive(mz_zip_archive& archive, const ThumbnailData& thumbnail_data)
{
bool res = false;
size_t png_size = 0;
void* png_data = tdefl_write_image_to_png_file_in_memory_ex((const void*)thumbnail_data.pixels.data(), thumbnail_data.width, thumbnail_data.height, 4, &png_size, MZ_DEFAULT_LEVEL, 1);
if (png_data != nullptr) {
res = mz_zip_writer_add_mem(&archive, THUMBNAIL_FILE.c_str(), (const void*)png_data, png_size, MZ_DEFAULT_COMPRESSION);
mz_free(png_data);
}
if (!res)
add_error("Unable to add thumbnail file to archive");
return res;
}
bool _3MF_Exporter::_add_relationships_file_to_archive(mz_zip_archive& archive)
{
std::stringstream stream;
stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
stream << "<Relationships xmlns=\"http://schemas.openxmlformats.org/package/2006/relationships\">\n";
stream << " <Relationship Target=\"/" << MODEL_FILE << "\" Id=\"rel-1\" Type=\"http://schemas.microsoft.com/3dmanufacturing/2013/01/3dmodel\"/>\n";
stream << " <Relationship Target=\"/" << THUMBNAIL_FILE << "\" Id=\"rel-2\" Type=\"http://schemas.openxmlformats.org/package/2006/relationships/metadata/thumbnail\"/>\n";
stream << "</Relationships>";
std::string out = stream.str();
if (!mz_zip_writer_add_mem(&archive, RELATIONSHIPS_FILE.c_str(), (const void*)out.data(), out.length(), MZ_DEFAULT_COMPRESSION)) {
add_error("Unable to add relationships file to archive");
return false;
}
return true;
}
static void reset_stream(std::stringstream &stream)
{
stream.str("");
stream.clear();
// https://en.cppreference.com/w/cpp/types/numeric_limits/max_digits10
// Conversion of a floating-point value to text and back is exact as long as at least max_digits10 were used (9 for float, 17 for double).
// It is guaranteed to produce the same floating-point value, even though the intermediate text representation is not exact.
// The default value of std::stream precision is 6 digits only!
stream << std::setprecision(std::numeric_limits<float>::max_digits10);
}
bool _3MF_Exporter::_add_model_file_to_archive(const std::string& filename, mz_zip_archive& archive, const Model& model, IdToObjectDataMap& objects_data)
{
mz_zip_writer_staged_context context;
if (!mz_zip_writer_add_staged_open(&archive, &context, MODEL_FILE.c_str(),
m_zip64 ?
// Maximum expected and allowed 3MF file size is 16GiB.
// This switches the ZIP file to a 64bit mode, which adds a tiny bit of overhead to file records.
(uint64_t(1) << 30) * 16 :
// Maximum expected 3MF file size is 4GB-1. This is a workaround for interoperability with Windows 10 3D model fixing API, see
// GH issue #6193.
(uint64_t(1) << 32) - 1,
nullptr, nullptr, 0, MZ_DEFAULT_COMPRESSION, nullptr, 0, nullptr, 0)) {
add_error("Unable to add model file to archive");
return false;
}
{
std::stringstream stream;
reset_stream(stream);
stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
stream << "<" << MODEL_TAG << " unit=\"millimeter\" xml:lang=\"en-US\" xmlns=\"http://schemas.microsoft.com/3dmanufacturing/core/2015/02\" xmlns:slic3rpe=\"http://schemas.slic3r.org/3mf/2017/06\">\n";
stream << " <" << METADATA_TAG << " name=\"" << SLIC3RPE_3MF_VERSION << "\">" << VERSION_3MF << "</" << METADATA_TAG << ">\n";
if (model.is_fdm_support_painted())
stream << " <" << METADATA_TAG << " name=\"" << SLIC3RPE_FDM_SUPPORTS_PAINTING_VERSION << "\">" << FDM_SUPPORTS_PAINTING_VERSION << "</" << METADATA_TAG << ">\n";
if (model.is_seam_painted())
stream << " <" << METADATA_TAG << " name=\"" << SLIC3RPE_SEAM_PAINTING_VERSION << "\">" << SEAM_PAINTING_VERSION << "</" << METADATA_TAG << ">\n";
if (model.is_mm_painted())
stream << " <" << METADATA_TAG << " name=\"" << SLIC3RPE_MM_PAINTING_VERSION << "\">" << MM_PAINTING_VERSION << "</" << METADATA_TAG << ">\n";
std::string name = xml_escape(boost::filesystem::path(filename).stem().string());
stream << " <" << METADATA_TAG << " name=\"Title\">" << name << "</" << METADATA_TAG << ">\n";
stream << " <" << METADATA_TAG << " name=\"Designer\">" << "</" << METADATA_TAG << ">\n";
stream << " <" << METADATA_TAG << " name=\"Description\">" << name << "</" << METADATA_TAG << ">\n";
stream << " <" << METADATA_TAG << " name=\"Copyright\">" << "</" << METADATA_TAG << ">\n";
stream << " <" << METADATA_TAG << " name=\"LicenseTerms\">" << "</" << METADATA_TAG << ">\n";
stream << " <" << METADATA_TAG << " name=\"Rating\">" << "</" << METADATA_TAG << ">\n";
std::string date = Slic3r::Utils::utc_timestamp(Slic3r::Utils::get_current_time_utc());
// keep only the date part of the string
date = date.substr(0, 10);
stream << " <" << METADATA_TAG << " name=\"CreationDate\">" << date << "</" << METADATA_TAG << ">\n";
stream << " <" << METADATA_TAG << " name=\"ModificationDate\">" << date << "</" << METADATA_TAG << ">\n";
stream << " <" << METADATA_TAG << " name=\"Application\">" << SLIC3R_APP_KEY << "-" << SLIC3R_VERSION << "</" << METADATA_TAG << ">\n";
stream << " <" << RESOURCES_TAG << ">\n";
std::string buf = stream.str();
if (! buf.empty() && ! mz_zip_writer_add_staged_data(&context, buf.data(), buf.size())) {
add_error("Unable to add model file to archive");
return false;
}
}
// Instance transformations, indexed by the 3MF object ID (which is a linear serialization of all instances of all ModelObjects).
BuildItemsList build_items;
// The object_id here is a one based identifier of the first instance of a ModelObject in the 3MF file, where
// all the object instances of all ModelObjects are stored and indexed in a 1 based linear fashion.
// Therefore the list of object_ids here may not be continuous.
unsigned int object_id = 1;
for (ModelObject* obj : model.objects) {
if (obj == nullptr)
continue;
// Index of an object in the 3MF file corresponding to the 1st instance of a ModelObject.
unsigned int curr_id = object_id;
IdToObjectDataMap::iterator object_it = objects_data.insert({ curr_id, ObjectData(obj) }).first;
// Store geometry of all ModelVolumes contained in a single ModelObject into a single 3MF indexed triangle set object.
// object_it->second.volumes_offsets will contain the offsets of the ModelVolumes in that single indexed triangle set.
// object_id will be increased to point to the 1st instance of the next ModelObject.
if (!_add_object_to_model_stream(context, object_id, *obj, build_items, object_it->second.volumes_offsets)) {
add_error("Unable to add object to archive");
mz_zip_writer_add_staged_finish(&context);
return false;
}
}
{
std::stringstream stream;
reset_stream(stream);
stream << " </" << RESOURCES_TAG << ">\n";
// Store the transformations of all the ModelInstances of all ModelObjects, indexed in a linear fashion.
if (!_add_build_to_model_stream(stream, build_items)) {
add_error("Unable to add build to archive");
mz_zip_writer_add_staged_finish(&context);
return false;
}
stream << "</" << MODEL_TAG << ">\n";
std::string buf = stream.str();
if ((! buf.empty() && ! mz_zip_writer_add_staged_data(&context, buf.data(), buf.size())) ||
! mz_zip_writer_add_staged_finish(&context)) {
add_error("Unable to add model file to archive");
return false;
}
}
return true;
}
bool _3MF_Exporter::_add_object_to_model_stream(mz_zip_writer_staged_context &context, unsigned int& object_id, ModelObject& object, BuildItemsList& build_items, VolumeToOffsetsMap& volumes_offsets)
{
std::stringstream stream;
reset_stream(stream);
unsigned int id = 0;
for (const ModelInstance* instance : object.instances) {
assert(instance != nullptr);
if (instance == nullptr)
continue;
unsigned int instance_id = object_id + id;
stream << " <" << OBJECT_TAG << " id=\"" << instance_id << "\" type=\"model\">\n";
if (id == 0) {
std::string buf = stream.str();
reset_stream(stream);
if ((! buf.empty() && ! mz_zip_writer_add_staged_data(&context, buf.data(), buf.size())) ||
! _add_mesh_to_object_stream(context, object, volumes_offsets)) {
add_error("Unable to add mesh to archive");
return false;
}
}
else {
stream << " <" << COMPONENTS_TAG << ">\n";
stream << " <" << COMPONENT_TAG << " objectid=\"" << object_id << "\"/>\n";
stream << " </" << COMPONENTS_TAG << ">\n";
}
Transform3d t = instance->get_matrix();
// instance_id is just a 1 indexed index in build_items.
assert(instance_id == build_items.size() + 1);
build_items.emplace_back(instance_id, t, instance->printable);
stream << " </" << OBJECT_TAG << ">\n";
++id;
}
object_id += id;
std::string buf = stream.str();
return buf.empty() || mz_zip_writer_add_staged_data(&context, buf.data(), buf.size());
}
#if EXPORT_3MF_USE_SPIRIT_KARMA_FP
template <typename Num>
struct coordinate_policy_fixed : boost::spirit::karma::real_policies<Num>
{
static int floatfield(Num n) { return fmtflags::fixed; }
// Number of decimal digits to maintain float accuracy when storing into a text file and parsing back.
static unsigned precision(Num /* n */) { return std::numeric_limits<Num>::max_digits10 + 1; }
// No trailing zeros, thus for fmtflags::fixed usually much less than max_digits10 decimal numbers will be produced.
static bool trailing_zeros(Num /* n */) { return false; }
};
template <typename Num>
struct coordinate_policy_scientific : coordinate_policy_fixed<Num>
{
static int floatfield(Num n) { return fmtflags::scientific; }
};
// Define a new generator type based on the new coordinate policy.
using coordinate_type_fixed = boost::spirit::karma::real_generator<float, coordinate_policy_fixed<float>>;
using coordinate_type_scientific = boost::spirit::karma::real_generator<float, coordinate_policy_scientific<float>>;
#endif // EXPORT_3MF_USE_SPIRIT_KARMA_FP
bool _3MF_Exporter::_add_mesh_to_object_stream(mz_zip_writer_staged_context &context, ModelObject& object, VolumeToOffsetsMap& volumes_offsets)
{
std::string output_buffer;
output_buffer += " <";
output_buffer += MESH_TAG;
output_buffer += ">\n <";
output_buffer += VERTICES_TAG;
output_buffer += ">\n";
auto flush = [this, &output_buffer, &context](bool force = false) {
if ((force && ! output_buffer.empty()) || output_buffer.size() >= 65536 * 16) {
if (! mz_zip_writer_add_staged_data(&context, output_buffer.data(), output_buffer.size())) {
add_error("Error during writing or compression");
return false;
}
output_buffer.clear();
}
return true;
};
auto format_coordinate = [](float f, char *buf) -> char* {
assert(is_decimal_separator_point());
#if EXPORT_3MF_USE_SPIRIT_KARMA_FP
// Slightly faster than sprintf("%.9g"), but there is an issue with the karma floating point formatter,
// https://github.com/boostorg/spirit/pull/586
// where the exported string is one digit shorter than it should be to guarantee lossless round trip.
// The code is left here for the ocasion boost guys improve.
coordinate_type_fixed const coordinate_fixed = coordinate_type_fixed();
coordinate_type_scientific const coordinate_scientific = coordinate_type_scientific();
// Format "f" in a fixed format.
char *ptr = buf;
boost::spirit::karma::generate(ptr, coordinate_fixed, f);
// Format "f" in a scientific format.
char *ptr2 = ptr;
boost::spirit::karma::generate(ptr2, coordinate_scientific, f);
// Return end of the shorter string.
auto len2 = ptr2 - ptr;
if (ptr - buf > len2) {
// Move the shorter scientific form to the front.
memcpy(buf, ptr, len2);
ptr = buf + len2;
}
// Return pointer to the end.
return ptr;
#else
// Round-trippable float, shortest possible.
return buf + sprintf(buf, "%.9g", f);
#endif
};
char buf[256];
unsigned int vertices_count = 0;
for (ModelVolume* volume : object.volumes) {
if (volume == nullptr)
continue;
volumes_offsets.insert({ volume, Offsets(vertices_count) });
const indexed_triangle_set &its = volume->mesh().its;
if (its.vertices.empty()) {
add_error("Found invalid mesh");
return false;
}
vertices_count += (int)its.vertices.size();
const Transform3d& matrix = volume->get_matrix();
for (size_t i = 0; i < its.vertices.size(); ++i) {
Vec3f v = (matrix * its.vertices[i].cast<double>()).cast<float>();
char *ptr = buf;
boost::spirit::karma::generate(ptr, boost::spirit::lit(" <") << VERTEX_TAG << " x=\"");
ptr = format_coordinate(v.x(), ptr);
boost::spirit::karma::generate(ptr, "\" y=\"");
ptr = format_coordinate(v.y(), ptr);
boost::spirit::karma::generate(ptr, "\" z=\"");
ptr = format_coordinate(v.z(), ptr);
boost::spirit::karma::generate(ptr, "\"/>\n");
*ptr = '\0';
output_buffer += buf;
if (! flush())
return false;
}
}
output_buffer += " </";
output_buffer += VERTICES_TAG;
output_buffer += ">\n <";
output_buffer += TRIANGLES_TAG;
output_buffer += ">\n";
unsigned int triangles_count = 0;
for (ModelVolume* volume : object.volumes) {
if (volume == nullptr)
continue;
bool is_left_handed = volume->is_left_handed();
VolumeToOffsetsMap::iterator volume_it = volumes_offsets.find(volume);
assert(volume_it != volumes_offsets.end());
const indexed_triangle_set &its = volume->mesh().its;
// updates triangle offsets
volume_it->second.first_triangle_id = triangles_count;
triangles_count += (int)its.indices.size();
volume_it->second.last_triangle_id = triangles_count - 1;
for (int i = 0; i < int(its.indices.size()); ++ i) {
{
const Vec3i32 &idx = its.indices[i];
char *ptr = buf;
boost::spirit::karma::generate(ptr, boost::spirit::lit(" <") << TRIANGLE_TAG <<
" v1=\"" << boost::spirit::int_ <<
"\" v2=\"" << boost::spirit::int_ <<
"\" v3=\"" << boost::spirit::int_ << "\"",
idx[is_left_handed ? 2 : 0] + volume_it->second.first_vertex_id,
idx[1] + volume_it->second.first_vertex_id,
idx[is_left_handed ? 0 : 2] + volume_it->second.first_vertex_id);
*ptr = '\0';
output_buffer += buf;
}
std::string custom_supports_data_string = volume->supported_facets.get_triangle_as_string(i);
if (! custom_supports_data_string.empty()) {
output_buffer += " ";
output_buffer += CUSTOM_SUPPORTS_ATTR;
output_buffer += "=\"";
output_buffer += custom_supports_data_string;
output_buffer += "\"";
}
std::string custom_seam_data_string = volume->seam_facets.get_triangle_as_string(i);
if (! custom_seam_data_string.empty()) {
output_buffer += " ";
output_buffer += CUSTOM_SEAM_ATTR;
output_buffer += "=\"";
output_buffer += custom_seam_data_string;
output_buffer += "\"";
}
std::string mmu_painting_data_string = volume->mmu_segmentation_facets.get_triangle_as_string(i);
if (! mmu_painting_data_string.empty()) {
output_buffer += " ";
output_buffer += MMU_SEGMENTATION_ATTR;
output_buffer += "=\"";
output_buffer += mmu_painting_data_string;
output_buffer += "\"";
}
output_buffer += "/>\n";
if (! flush())
return false;
}
}
output_buffer += " </";
output_buffer += TRIANGLES_TAG;
output_buffer += ">\n </";
output_buffer += MESH_TAG;
output_buffer += ">\n";
// Force flush.
return flush(true);
}
bool _3MF_Exporter::_add_build_to_model_stream(std::stringstream& stream, const BuildItemsList& build_items)
{
// This happens for empty projects
if (build_items.size() == 0) {
add_error("No build item found");
return true;
}
stream << " <" << BUILD_TAG << ">\n";
for (const BuildItem& item : build_items) {
stream << " <" << ITEM_TAG << " " << OBJECTID_ATTR << "=\"" << item.id << "\" " << TRANSFORM_ATTR << "=\"";
for (unsigned c = 0; c < 4; ++c) {
for (unsigned r = 0; r < 3; ++r) {
stream << item.transform(r, c);
if (r != 2 || c != 3)
stream << " ";
}
}
stream << "\" " << PRINTABLE_ATTR << "=\"" << item.printable << "\"/>\n";
}
stream << " </" << BUILD_TAG << ">\n";
return true;
}
bool _3MF_Exporter::_add_layer_height_profile_file_to_archive(mz_zip_archive& archive, Model& model)
{
assert(is_decimal_separator_point());
std::string out = "";
char buffer[1024];
unsigned int count = 0;
for (const ModelObject* object : model.objects) {
++count;
const std::vector<double>& layer_height_profile = object->layer_height_profile.get();
if (layer_height_profile.size() >= 4 && layer_height_profile.size() % 2 == 0) {
sprintf(buffer, "object_id=%d|", count);
out += buffer;
// Store the layer height profile as a single semicolon separated list.
for (size_t i = 0; i < layer_height_profile.size(); ++i) {
sprintf(buffer, (i == 0) ? "%f" : ";%f", layer_height_profile[i]);
out += buffer;
}
out += "\n";
}
}
if (!out.empty()) {
if (!mz_zip_writer_add_mem(&archive, LAYER_HEIGHTS_PROFILE_FILE.c_str(), (const void*)out.data(), out.length(), MZ_DEFAULT_COMPRESSION)) {
add_error("Unable to add layer heights profile file to archive");
return false;
}
}
return true;
}
bool _3MF_Exporter::_add_layer_config_ranges_file_to_archive(mz_zip_archive& archive, Model& model)
{
std::string out = "";
pt::ptree tree;
unsigned int object_cnt = 0;
for (const ModelObject* object : model.objects) {
object_cnt++;
const t_layer_config_ranges& ranges = object->layer_config_ranges;
if (!ranges.empty())
{
pt::ptree& obj_tree = tree.add("objects.object","");
obj_tree.put("<xmlattr>.id", object_cnt);
// Store the layer config ranges.
for (const auto& range : ranges) {
pt::ptree& range_tree = obj_tree.add("range", "");
// store minX and maxZ
range_tree.put("<xmlattr>.min_z", range.first.first);
range_tree.put("<xmlattr>.max_z", range.first.second);
// store range configuration
const ModelConfig& config = range.second;
for (const std::string& opt_key : config.keys()) {
pt::ptree& opt_tree = range_tree.add("option", config.opt_serialize(opt_key));
opt_tree.put("<xmlattr>.opt_key", opt_key);
}
}
}
}
if (!tree.empty()) {
std::ostringstream oss;
pt::write_xml(oss, tree);
out = oss.str();
// Post processing("beautification") of the output string for a better preview
boost::replace_all(out, "><object", ">\n <object");
boost::replace_all(out, "><range", ">\n <range");
boost::replace_all(out, "><option", ">\n <option");
boost::replace_all(out, "></range>", ">\n </range>");
boost::replace_all(out, "></object>", ">\n </object>");
// OR just
boost::replace_all(out, "><", ">\n<");
}
if (!out.empty()) {
if (!mz_zip_writer_add_mem(&archive, LAYER_CONFIG_RANGES_FILE.c_str(), (const void*)out.data(), out.length(), MZ_DEFAULT_COMPRESSION)) {
add_error("Unable to add layer heights profile file to archive");
return false;
}
}
return true;
}
bool _3MF_Exporter::_add_sla_support_points_file_to_archive(mz_zip_archive& archive, Model& model)
{
assert(is_decimal_separator_point());
std::string out = "";
char buffer[1024];
unsigned int count = 0;
for (const ModelObject* object : model.objects) {
++count;
const std::vector<sla::SupportPoint>& sla_support_points = object->sla_support_points;
if (!sla_support_points.empty()) {
sprintf(buffer, "object_id=%d|", count);
out += buffer;
// Store the layer height profile as a single space separated list.
for (size_t i = 0; i < sla_support_points.size(); ++i) {
sprintf(buffer, (i==0 ? "%f %f %f %f %f" : " %f %f %f %f %f"), sla_support_points[i].pos(0), sla_support_points[i].pos(1), sla_support_points[i].pos(2), sla_support_points[i].head_front_radius, (float)sla_support_points[i].is_new_island);
out += buffer;
}
out += "\n";
}
}
if (!out.empty()) {
// Adds version header at the beginning:
out = std::string("support_points_format_version=") + std::to_string(support_points_format_version) + std::string("\n") + out;
if (!mz_zip_writer_add_mem(&archive, SLA_SUPPORT_POINTS_FILE.c_str(), (const void*)out.data(), out.length(), MZ_DEFAULT_COMPRESSION)) {
add_error("Unable to add sla support points file to archive");
return false;
}
}
return true;
}
bool _3MF_Exporter::_add_sla_drain_holes_file_to_archive(mz_zip_archive& archive, Model& model)
{
assert(is_decimal_separator_point());
const char *const fmt = "object_id=%d|";
std::string out;
unsigned int count = 0;
for (const ModelObject* object : model.objects) {
++count;
sla::DrainHoles drain_holes = object->sla_drain_holes;
// The holes were placed 1mm above the mesh in the first implementation.
// This was a bad idea and the reference point was changed in 2.3 so
// to be on the mesh exactly. The elevated position is still saved
// in 3MFs for compatibility reasons.
for (sla::DrainHole& hole : drain_holes) {
hole.pos -= hole.normal.normalized();
hole.height += 1.f;
}
if (!drain_holes.empty()) {
out += string_printf(fmt, count);
// Store the layer height profile as a single space separated list.
for (size_t i = 0; i < drain_holes.size(); ++i)
out += string_printf((i == 0 ? "%f %f %f %f %f %f %f %f" : " %f %f %f %f %f %f %f %f"),
drain_holes[i].pos(0),
drain_holes[i].pos(1),
drain_holes[i].pos(2),
drain_holes[i].normal(0),
drain_holes[i].normal(1),
drain_holes[i].normal(2),
drain_holes[i].radius,
drain_holes[i].height);
out += "\n";
}
}
if (!out.empty()) {
// Adds version header at the beginning:
out = std::string("drain_holes_format_version=") + std::to_string(drain_holes_format_version) + std::string("\n") + out;
if (!mz_zip_writer_add_mem(&archive, SLA_DRAIN_HOLES_FILE.c_str(), static_cast<const void*>(out.data()), out.length(), mz_uint(MZ_DEFAULT_COMPRESSION))) {
add_error("Unable to add sla support points file to archive");
return false;
}
}
return true;
}
bool _3MF_Exporter::_add_print_config_file_to_archive(mz_zip_archive& archive, const DynamicPrintConfig &config)
{
assert(is_decimal_separator_point());
char buffer[1024];
sprintf(buffer, "; %s\n\n", header_slic3r_generated().c_str());
std::string out = buffer;
for (const std::string &key : config.keys())
if (key != "compatible_printers")
out += "; " + key + " = " + config.opt_serialize(key) + "\n";
if (!out.empty()) {
if (!mz_zip_writer_add_mem(&archive, PRINT_CONFIG_FILE.c_str(), (const void*)out.data(), out.length(), MZ_DEFAULT_COMPRESSION)) {
add_error("Unable to add print config file to archive");
return false;
}
}
return true;
}
bool _3MF_Exporter::_add_model_config_file_to_archive(mz_zip_archive& archive, const Model& model, const IdToObjectDataMap &objects_data)
{
std::stringstream stream;
// Store mesh transformation in full precision, as the volumes are stored transformed and they need to be transformed back
// when loaded as accurately as possible.
stream << std::setprecision(std::numeric_limits<double>::max_digits10);
stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
stream << "<" << CONFIG_TAG << ">\n";
for (const IdToObjectDataMap::value_type& obj_metadata : objects_data) {
const ModelObject* obj = obj_metadata.second.object;
if (obj != nullptr) {
// Output of instances count added because of github #3435, currently not used by PrusaSlicer
stream << " <" << OBJECT_TAG << " " << ID_ATTR << "=\"" << obj_metadata.first << "\" " << INSTANCESCOUNT_ATTR << "=\"" << obj->instances.size() << "\">\n";
// stores object's name
if (!obj->name.empty())
stream << " <" << METADATA_TAG << " " << TYPE_ATTR << "=\"" << OBJECT_TYPE << "\" " << KEY_ATTR << "=\"name\" " << VALUE_ATTR << "=\"" << xml_escape(obj->name) << "\"/>\n";
// stores object's config data
for (const std::string& key : obj->config.keys()) {
stream << " <" << METADATA_TAG << " " << TYPE_ATTR << "=\"" << OBJECT_TYPE << "\" " << KEY_ATTR << "=\"" << key << "\" " << VALUE_ATTR << "=\"" << obj->config.opt_serialize(key) << "\"/>\n";
}
for (const ModelVolume* volume : obj_metadata.second.object->volumes) {
if (volume != nullptr) {
const VolumeToOffsetsMap& offsets = obj_metadata.second.volumes_offsets;
VolumeToOffsetsMap::const_iterator it = offsets.find(volume);
if (it != offsets.end()) {
// stores volume's offsets
stream << " <" << VOLUME_TAG << " ";
stream << FIRST_TRIANGLE_ID_ATTR << "=\"" << it->second.first_triangle_id << "\" ";
stream << LAST_TRIANGLE_ID_ATTR << "=\"" << it->second.last_triangle_id << "\">\n";
// stores volume's name
if (!volume->name.empty())
stream << " <" << METADATA_TAG << " " << TYPE_ATTR << "=\"" << VOLUME_TYPE << "\" " << KEY_ATTR << "=\"" << NAME_KEY << "\" " << VALUE_ATTR << "=\"" << xml_escape(volume->name) << "\"/>\n";
// stores volume's modifier field (legacy, to support old slicers)
if (volume->is_modifier())
stream << " <" << METADATA_TAG << " " << TYPE_ATTR << "=\"" << VOLUME_TYPE << "\" " << KEY_ATTR << "=\"" << MODIFIER_KEY << "\" " << VALUE_ATTR << "=\"1\"/>\n";
// stores volume's type (overrides the modifier field above)
stream << " <" << METADATA_TAG << " " << TYPE_ATTR << "=\"" << VOLUME_TYPE << "\" " << KEY_ATTR << "=\"" << VOLUME_TYPE_KEY << "\" " <<
VALUE_ATTR << "=\"" << ModelVolume::type_to_string(volume->type()) << "\"/>\n";
// stores volume's local matrix
stream << " <" << METADATA_TAG << " " << TYPE_ATTR << "=\"" << VOLUME_TYPE << "\" " << KEY_ATTR << "=\"" << MATRIX_KEY << "\" " << VALUE_ATTR << "=\"";
Transform3d matrix = volume->get_matrix() * volume->source.transform.get_matrix();
for (int r = 0; r < 4; ++r) {
for (int c = 0; c < 4; ++c) {
stream << matrix(r, c);
if (r != 3 || c != 3)
stream << " ";
}
}
stream << "\"/>\n";
// stores volume's source data
{
std::string input_file = xml_escape(m_fullpath_sources ? volume->source.input_file : boost::filesystem::path(volume->source.input_file).filename().string());
std::string prefix = std::string(" <") + METADATA_TAG + " " + TYPE_ATTR + "=\"" + VOLUME_TYPE + "\" " + KEY_ATTR + "=\"";
if (! volume->source.input_file.empty()) {
stream << prefix << SOURCE_FILE_KEY << "\" " << VALUE_ATTR << "=\"" << input_file << "\"/>\n";
stream << prefix << SOURCE_OBJECT_ID_KEY << "\" " << VALUE_ATTR << "=\"" << volume->source.object_idx << "\"/>\n";
stream << prefix << SOURCE_VOLUME_ID_KEY << "\" " << VALUE_ATTR << "=\"" << volume->source.volume_idx << "\"/>\n";
stream << prefix << SOURCE_OFFSET_X_KEY << "\" " << VALUE_ATTR << "=\"" << volume->source.mesh_offset(0) << "\"/>\n";
stream << prefix << SOURCE_OFFSET_Y_KEY << "\" " << VALUE_ATTR << "=\"" << volume->source.mesh_offset(1) << "\"/>\n";
stream << prefix << SOURCE_OFFSET_Z_KEY << "\" " << VALUE_ATTR << "=\"" << volume->source.mesh_offset(2) << "\"/>\n";
}
assert(! volume->source.is_converted_from_inches || ! volume->source.is_converted_from_meters);
if (volume->source.is_converted_from_inches)
stream << prefix << SOURCE_IN_INCHES << "\" " << VALUE_ATTR << "=\"1\"/>\n";
else if (volume->source.is_converted_from_meters)
stream << prefix << SOURCE_IN_METERS << "\" " << VALUE_ATTR << "=\"1\"/>\n";
}
// stores volume's config data
for (const std::string& key : volume->config.keys()) {
stream << " <" << METADATA_TAG << " " << TYPE_ATTR << "=\"" << VOLUME_TYPE << "\" " << KEY_ATTR << "=\"" << key << "\" " << VALUE_ATTR << "=\"" << volume->config.opt_serialize(key) << "\"/>\n";
}
// stores mesh's statistics
const RepairedMeshErrors& stats = volume->mesh().stats().repaired_errors;
stream << " <" << MESH_TAG << " ";
stream << MESH_STAT_EDGES_FIXED << "=\"" << stats.edges_fixed << "\" ";
stream << MESH_STAT_DEGENERATED_FACETS << "=\"" << stats.degenerate_facets << "\" ";
stream << MESH_STAT_FACETS_REMOVED << "=\"" << stats.facets_removed << "\" ";
stream << MESH_STAT_FACETS_RESERVED << "=\"" << stats.facets_reversed << "\" ";
stream << MESH_STAT_BACKWARDS_EDGES << "=\"" << stats.backwards_edges << "\"/>\n";
stream << " </" << VOLUME_TAG << ">\n";
}
}
}
stream << " </" << OBJECT_TAG << ">\n";
}
}
stream << "</" << CONFIG_TAG << ">\n";
std::string out = stream.str();
if (!mz_zip_writer_add_mem(&archive, MODEL_CONFIG_FILE.c_str(), (const void*)out.data(), out.length(), MZ_DEFAULT_COMPRESSION)) {
add_error("Unable to add model config file to archive");
return false;
}
return true;
}
bool _3MF_Exporter::_add_custom_gcode_per_print_z_file_to_archive( mz_zip_archive& archive, Model& model, const DynamicPrintConfig* config)
{
return true;
//std::string out = "";
//if (!model.custom_gcode_per_print_z.gcodes.empty()) {
// pt::ptree tree;
// pt::ptree& main_tree = tree.add("custom_gcodes_per_print_z", "");
// for (const CustomGCode::Item& code : model.custom_gcode_per_print_z.gcodes) {
// pt::ptree& code_tree = main_tree.add("code", "");
// // store data of custom_gcode_per_print_z
// code_tree.put("<xmlattr>.print_z" , code.print_z );
// code_tree.put("<xmlattr>.type" , static_cast<int>(code.type));
// code_tree.put("<xmlattr>.extruder" , code.extruder );
// code_tree.put("<xmlattr>.color" , code.color );
// code_tree.put("<xmlattr>.extra" , code.extra );
// //BBS
// std::string gcode = //code.type == CustomGCode::ColorChange ? config->opt_string("color_change_gcode") :
// code.type == CustomGCode::PausePrint ? config->opt_string("machine_pause_gcode") :
// code.type == CustomGCode::Template ? config->opt_string("template_custom_gcode") :
// code.type == CustomGCode::ToolChange ? "tool_change" : code.extra;
// code_tree.put("<xmlattr>.gcode" , gcode );
// }
// pt::ptree& mode_tree = main_tree.add("mode", "");
// // store mode of a custom_gcode_per_print_z
// mode_tree.put("<xmlattr>.value", model.custom_gcode_per_print_z.mode == CustomGCode::Mode::SingleExtruder ? CustomGCode::SingleExtruderMode :
// model.custom_gcode_per_print_z.mode == CustomGCode::Mode::MultiAsSingle ? CustomGCode::MultiAsSingleMode :
// CustomGCode::MultiExtruderMode);
// if (!tree.empty()) {
// std::ostringstream oss;
// boost::property_tree::write_xml(oss, tree);
// out = oss.str();
// // Post processing("beautification") of the output string
// boost::replace_all(out, "><", ">\n<");
// }
//}
//if (!out.empty()) {
// if (!mz_zip_writer_add_mem(&archive, CUSTOM_GCODE_PER_PRINT_Z_FILE.c_str(), (const void*)out.data(), out.length(), MZ_DEFAULT_COMPRESSION)) {
// add_error("Unable to add custom Gcodes per print_z file to archive");
// return false;
// }
//}
//return true;
}
// Perform conversions based on the config values available.
//FIXME provide a version of PrusaSlicer that stored the project file (3MF).
static void handle_legacy_project_loaded(unsigned int version_project_file, DynamicPrintConfig& config)
{
if (! config.has("brim_object_gap")) {
if (auto *opt_elephant_foot = config.option<ConfigOptionFloat>("elefant_foot_compensation", false); opt_elephant_foot) {
// Conversion from older PrusaSlicer which applied brim separation equal to elephant foot compensation.
auto *opt_brim_separation = config.option<ConfigOptionFloat>("brim_object_gap", true);
opt_brim_separation->value = opt_elephant_foot->value;
}
}
}
bool load_3mf(const char* path, DynamicPrintConfig& config, ConfigSubstitutionContext& config_substitutions, Model* model, bool check_version)
{
if (path == nullptr || model == nullptr)
return false;
// All import should use "C" locales for number formatting.
CNumericLocalesSetter locales_setter;
_3MF_Importer importer;
bool res = importer.load_model_from_file(path, *model, config, config_substitutions, check_version);
importer.log_errors();
handle_legacy_project_loaded(importer.version(), config);
return res;
}
bool store_3mf(const char* path, Model* model, const DynamicPrintConfig* config, bool fullpath_sources, const ThumbnailData* thumbnail_data, bool zip64)
{
// All export should use "C" locales for number formatting.
CNumericLocalesSetter locales_setter;
if (path == nullptr || model == nullptr)
return false;
_3MF_Exporter exporter;
bool res = exporter.save_model_to_file(path, *model, config, fullpath_sources, thumbnail_data, zip64);
if (!res)
exporter.log_errors();
return res;
}
} // namespace Slic3r
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