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FIX: Concave painting of thin objects does not work.STUDIO-2334 

Change-Id: I4812e7940f4f2764a51881d10bc513e7e6c028b6
This commit is contained in:
zhimin.zeng 2023-03-29 10:59:31 +08:00 committed by Lane.Wei
parent 3d710609d9
commit 4d958df4b3
1 changed files with 34 additions and 4 deletions
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38
src/libslic3r/MultiMaterialSegmentation.cpp
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@ -1525,6 +1525,12 @@ static inline std::vector<std::vector<ExPolygons>> mmu_segmentation_top_and_bott
triangles_by_color_bottom.assign(num_extruders, std::vector<ExPolygons>(num_layers * 2));
triangles_by_color_top.assign(num_extruders, std::vector<ExPolygons>(num_layers * 2));
// BBS: use shell_triangles_by_color_bottom & shell_triangles_by_color_top to save the top and bottom embedded layers's color information
std::vector<std::vector<ExPolygons>> shell_triangles_by_color_bottom(num_extruders);
std::vector<std::vector<ExPolygons>> shell_triangles_by_color_top(num_extruders);
shell_triangles_by_color_bottom.assign(num_extruders, std::vector<ExPolygons>(num_layers * 2));
shell_triangles_by_color_top.assign(num_extruders, std::vector<ExPolygons>(num_layers * 2));
struct LayerColorStat {
// Number of regions for a queried color.
int num_regions { 0 };
@ -1567,7 +1573,8 @@ static inline std::vector<std::vector<ExPolygons>> mmu_segmentation_top_and_bott
};
tbb::parallel_for(tbb::blocked_range<size_t>(0, num_layers, granularity), [&granularity, &num_layers, &num_extruders, &layer_color_stat, &top_raw, &triangles_by_color_top,
&throw_on_cancel_callback, &input_expolygons, &bottom_raw, &triangles_by_color_bottom](const tbb::blocked_range<size_t> &range) {
&throw_on_cancel_callback, &input_expolygons, &bottom_raw, &triangles_by_color_bottom,
&shell_triangles_by_color_top, &shell_triangles_by_color_bottom](const tbb::blocked_range<size_t> &range) {
size_t group_idx = range.begin() / granularity;
size_t layer_idx_offset = (group_idx & 1) * num_layers;
for (size_t layer_idx = range.begin(); layer_idx < range.end(); ++ layer_idx) {
@ -1590,7 +1597,7 @@ static inline std::vector<std::vector<ExPolygons>> mmu_segmentation_top_and_bott
ExPolygons last = opening_ex(intersection_ex(top_ex, offset_ex(layer_slices_trimmed, offset)), stat.small_region_threshold);
if (last.empty())
break;
append(triangles_by_color_top[color_idx][last_idx + layer_idx_offset], std::move(last));
append(shell_triangles_by_color_top[color_idx][last_idx + layer_idx_offset], std::move(last));
}
}
}
@ -1610,7 +1617,7 @@ static inline std::vector<std::vector<ExPolygons>> mmu_segmentation_top_and_bott
ExPolygons last = opening_ex(intersection_ex(bottom_ex, offset_ex(layer_slices_trimmed, offset)), stat.small_region_threshold);
if (last.empty())
break;
append(triangles_by_color_bottom[color_idx][last_idx + layer_idx_offset], std::move(last));
append(shell_triangles_by_color_bottom[color_idx][last_idx + layer_idx_offset], std::move(last));
}
}
}
@ -1620,9 +1627,11 @@ static inline std::vector<std::vector<ExPolygons>> mmu_segmentation_top_and_bott
std::vector<std::vector<ExPolygons>> triangles_by_color_merged(num_extruders);
triangles_by_color_merged.assign(num_extruders, std::vector<ExPolygons>(num_layers));
tbb::parallel_for(tbb::blocked_range<size_t>(0, num_layers), [&triangles_by_color_merged, &triangles_by_color_bottom, &triangles_by_color_top, &num_layers, &throw_on_cancel_callback](const tbb::blocked_range<size_t> &range) {
tbb::parallel_for(tbb::blocked_range<size_t>(0, num_layers), [&triangles_by_color_merged, &triangles_by_color_bottom, &triangles_by_color_top, &num_layers, &throw_on_cancel_callback,
&shell_triangles_by_color_top, &shell_triangles_by_color_bottom](const tbb::blocked_range<size_t> &range) {
for (size_t layer_idx = range.begin(); layer_idx < range.end(); ++ layer_idx) {
throw_on_cancel_callback();
ExPolygons painted_exploys;
for (size_t color_idx = 0; color_idx < triangles_by_color_merged.size(); ++color_idx) {
auto &self = triangles_by_color_merged[color_idx][layer_idx];
append(self, std::move(triangles_by_color_bottom[color_idx][layer_idx]));
@ -1630,6 +1639,27 @@ static inline std::vector<std::vector<ExPolygons>> mmu_segmentation_top_and_bott
append(self, std::move(triangles_by_color_top[color_idx][layer_idx]));
append(self, std::move(triangles_by_color_top[color_idx][layer_idx + num_layers]));
self = union_ex(self);
append(painted_exploys, self);
}
painted_exploys = union_ex(painted_exploys);
//BBS: merge the top and bottom shell layers
for (size_t color_idx = 0; color_idx < triangles_by_color_merged.size(); ++color_idx) {
auto &self = triangles_by_color_merged[color_idx][layer_idx];
auto top_area = diff_ex(union_ex(shell_triangles_by_color_top[color_idx][layer_idx],
shell_triangles_by_color_top[color_idx][layer_idx + num_layers]),
painted_exploys);
auto bottom_area = diff_ex(union_ex(shell_triangles_by_color_bottom[color_idx][layer_idx],
shell_triangles_by_color_bottom[color_idx][layer_idx + num_layers]),
painted_exploys);
append(self, top_area);
append(self, bottom_area);
self = union_ex(self);
}
// Trim one region by the other if some of the regions overlap.
for (size_t color_idx = 1; color_idx < triangles_by_color_merged.size(); ++ color_idx)