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Do not remove permanent point influence in layers out of part.

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Filip Sykala - NTB T15p 2025-01-21 10:47:22 +01:00 committed by Lukas Matena
parent 03d41b5966
commit a19d00ea14
1 changed files with 21 additions and 10 deletions
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31
src/libslic3r/SLA/SupportPointGenerator.cpp
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@ -17,6 +17,12 @@ using namespace Slic3r;
using namespace Slic3r::sla;
namespace {
bool exist_point_in_distance(const Vec3f &p, float distance, const LayerSupportPoints &pts) {
float distance_sq = sqr(distance);
return std::any_of(pts.begin(), pts.end(), [&p, distance_sq](const LayerSupportPoint &sp) {
return (sp.pos - p).squaredNorm() < distance_sq; });
}
/// <summary>
/// Struct to store support points in KD tree to fast search for nearest ones.
/// </summary>
@ -57,13 +63,17 @@ public:
/// Remove support points from KD-Tree which lay out of expolygons
/// </summary>
/// <param name="shapes">Define area where could be support points</param>
void remove_out_of(const ExPolygons &shapes) {
/// <param name="current_z">Current layer z coordinate
/// to prevent remove permanent points in prev layer influence</param>
void remove_out_of(const ExPolygons &shapes, float current_z) {
std::vector<size_t> indices = get_indices();
auto it = std::remove_if(indices.begin(), indices.end(),
[&pts = *m_points.m_supports_ptr, &shapes](size_t point_index) {
const Point& p = pts.at(point_index).position_on_layer;
[&pts = *m_points.m_supports_ptr, &shapes, current_z](size_t point_index) {
const LayerSupportPoint& lsp = pts.at(point_index);
if (lsp.is_permanent && lsp.pos.z() >= current_z)
return false;
return !std::any_of(shapes.begin(), shapes.end(),
[&p](const ExPolygon &shape) {
[&p = lsp.position_on_layer](const ExPolygon &shape) {
return shape.contains(p);
});
});
@ -83,6 +93,7 @@ public:
// IMPROVE: only add to existing tree, do not reconstruct tree
std::vector<size_t> indices = get_indices();
LayerSupportPoints &pts = *m_points.m_supports_ptr;
assert(!exist_point_in_distance(point.pos, point.head_front_radius, pts));
size_t index = pts.size();
pts.emplace_back(std::move(point));
indices.push_back(index);
@ -527,13 +538,13 @@ void prepare_supports_for_layer(LayerSupportPoints &supports, float layer_z,
/// Wanted Side effect, it supports thiny part of overhangs
/// </summary>
/// <param name="near_points"></param>
/// <param name="part"></param>
/// <param name="config"></param>
void remove_supports_out_of_part(NearPoints& near_points, const LayerPart &part,
const SupportPointGeneratorConfig &config) {
/// <param name="part">current </param>
/// <param name="current_z">Current layer z coordinate
/// to prevent remove permanent points in prev layer influence</param>
void remove_supports_out_of_part(NearPoints &near_points, const LayerPart &part, float current_z) {
// Offsetting is made in data preparation - speed up caused by paralelization
//ExPolygons extend_shape = offset_ex(*part.shape, config.removing_delta, ClipperLib::jtSquare);
near_points.remove_out_of(part.extend_shape);
near_points.remove_out_of(part.extend_shape, current_z);
}
/// <summary>
@ -1192,7 +1203,7 @@ LayerSupportPoints Slic3r::sla::generate_support_points(
assert(layer_id != 0);
const LayerParts &prev_layer_parts = layers[layer_id - 1].parts;
NearPoints near_points = create_near_points(prev_layer_parts, part, prev_grids);
remove_supports_out_of_part(near_points, part, config);
remove_supports_out_of_part(near_points, part, layer.print_z);
if (!part.peninsulas.empty()) {
// only get copy of points do not modify permanent_index
Points permanent = get_permanents(permanent_supports, permanent_index, layer_id, part_id);