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Compensate for origin_translation when exporting AMF files in order to preserve alignment of further added parts. #3348

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This commit is contained in:
Alessandro Ranellucci 2017-03-17 20:17:59 +01:00
parent a5b10287d6
commit 4c78e54a46
1 changed files with 25 additions and 23 deletions
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48
xs/src/libslic3r/IO/AMF.cpp
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@ -528,18 +528,23 @@ AMF::write(Model& model, std::string output_file)
std::vector<int> vertices_offsets;
int num_vertices = 0;
for (ModelVolume *volume : object->volumes) {
volume->mesh.check_topology();
vertices_offsets.push_back(num_vertices);
if (! volume->mesh.repaired)
CONFESS("store_amf() requires repair()");
auto &stl = volume->mesh.stl;
if (stl.v_shared == NULL)
stl_generate_shared_vertices(&stl);
for (size_t i = 0; i < stl.stats.shared_vertices; ++ i) {
// Subtract origin_translation in order to restore the coordinates of the parts
// before they were imported. Otherwise, when this AMF file is reimported parts
// will be placed in the plater correctly, but we will have lost origin_translation
// thus any additional part added will not align with the others.
// In order to do this we compensate for this translation in the instance placement
// below.
fprintf(file, " <vertex>\n");
fprintf(file, " <coordinates>\n");
fprintf(file, " <x>%f</x>\n", stl.v_shared[i].x);
fprintf(file, " <y>%f</y>\n", stl.v_shared[i].y);
fprintf(file, " <z>%f</z>\n", stl.v_shared[i].z);
fprintf(file, " <x>%f</x>\n", stl.v_shared[i].x - object->origin_translation.x);
fprintf(file, " <y>%f</y>\n", stl.v_shared[i].y - object->origin_translation.y);
fprintf(file, " <z>%f</z>\n", stl.v_shared[i].z - object->origin_translation.z);
fprintf(file, " </coordinates>\n");
fprintf(file, " </vertex>\n");
}
@ -569,24 +574,21 @@ AMF::write(Model& model, std::string output_file)
}
fprintf(file, " </mesh>\n");
fprintf(file, " </object>\n");
if (! object->instances.empty()) {
for (ModelInstance *instance : object->instances) {
char buf[512];
sprintf(buf,
" <instance objectid=\"%zu\">\n"
" <deltax>%lf</deltax>\n"
" <deltay>%lf</deltay>\n"
" <rz>%lf</rz>\n"
" <scale>%lf</scale>\n"
" </instance>\n",
object_id,
instance->offset.x,
instance->offset.y,
instance->rotation,
instance->scaling_factor);
//FIXME missing instance->scaling_factor
instances.append(buf);
}
for (const ModelInstance* instance : object->instances) {
char buf[512];
sprintf(buf,
" <instance objectid=\"%zu\">\n"
" <deltax>%lf</deltax>\n"
" <deltay>%lf</deltay>\n"
" <rz>%lf</rz>\n"
" <scale>%lf</scale>\n"
" </instance>\n",
object_id,
instance->offset.x + object->origin_translation.x,
instance->offset.y + object->origin_translation.y,
instance->rotation,
instance->scaling_factor);
instances.append(buf);
}
}
if (! instances.empty()) {