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ENH: fixed length of remaining_length is not suitable for small loops

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jira: STUDIO-12170
Change-Id: Ie0791dff96ed48184e39275bd1d6aa6de5517ab4
This commit is contained in:
jiaxi.chen 2025-05-13 16:40:27 +08:00 committed by lane.wei
parent 1541e256f9
commit 787ecce355
1 changed files with 4 additions and 3 deletions
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7
src/libslic3r/Support/SupportCommon.cpp
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@ -618,8 +618,9 @@ void tree_supports_generate_paths(
for (ExPolygon& expoly : closing_ex(polygons, float(SCALED_EPSILON), float(SCALED_EPSILON + 0.5 * flow.scaled_width()))) {
std::unique_ptr<ExtrusionEntityCollection> eec;
ExPolygons regions_to_draw_inner_wall{expoly};
double area = expoly.area();
if (support_params.tree_branch_diameter_double_wall_area_scaled > 0)
if (double area = expoly.area(); area > support_params.tree_branch_diameter_double_wall_area_scaled) {
if (area > support_params.tree_branch_diameter_double_wall_area_scaled) {
BOOST_LOG_TRIVIAL(debug)<< "TreeSupports: double wall area: " << area<< " > " << support_params.tree_branch_diameter_double_wall_area_scaled;
eec = std::make_unique<ExtrusionEntityCollection>();
// Don't reorder internal / external loops of the same island, always start with the internal loop.
@ -690,12 +691,12 @@ void tree_supports_generate_paths(
}
}
}
if (d2min < sqr(flow.scaled_width() * 3.)) {
if (d2min < sqr(flow.scaled_width() * 3.) && Slic3r::area(regions_to_draw_inner_wall) + scale_(EPSILON) > area && !shrink_ex({expoly}, -2.*flow.scaled_width()).empty()) {
// Try to cut an anchor from the closest_contour.
// Both closest_contour and pl are CW oriented.
pl.points.emplace_back(closest_point.cast<coord_t>());
const ClipperLib_Z::Path &path = *closest_contour;
double remaining_length = anchor_length - (seam_pt - closest_point).norm();
double remaining_length = std::min(anchor_length - (seam_pt - closest_point).norm(), pl.length() / 12.);
int i = closest_point_idx;
int j = next_idx_modulo(i, *closest_contour);
Vec2d pi(path[i].x(), path[i].y());