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FIX: useless expand for tree nodes 

jira: STUDIO-10235
Change-Id: I2a6780b4d010253452249c426437aba2bcc6ff60
This commit is contained in:
jiaxi.chen 2025-02-08 14:37:27 +08:00 committed by lane.wei
parent 8a84222be0
commit 4f9f1bbba0
1 changed files with 11 additions and 7 deletions
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18
src/libslic3r/Support/TreeSupport.cpp
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@ -3743,18 +3743,23 @@ void TreeSupport::generate_contact_points()
bool add_interface = (force_tip_to_roof || area(overhang_part) > minimum_roof_area); bool add_interface = (force_tip_to_roof || area(overhang_part) > minimum_roof_area);
const auto &relevant_forbidden = get_collision(0, layer_nr - 1); const auto &relevant_forbidden = get_collision(0, layer_nr - 1);
ExPolygons overhangs{overhang_part}; ExPolygons overhangs{overhang_part};
ExPolygons overhangs_regular; ExPolygons overhangs_regular, overhangs_no_extra_expand;
if (add_interface && xy_expansion > EPSILON && !is_sharp_tail) {
overhangs = safe_offset_inc(overhangs, xy_expansion, relevant_forbidden, scale_(MIN_BRANCH_RADIUS * 1.75), 0, 1);
}
overhangs_no_extra_expand = (unscale_(xy_expansion) - config.support_expansion.value) > EPSILON ?
safe_offset_inc({overhang_part}, scale_(config.support_expansion.value), relevant_forbidden, scale_(MIN_BRANCH_RADIUS * 1.75), 0, 1) :
overhangs;
if (m_support_params.support_style == smsTreeHybrid && if (m_support_params.support_style == smsTreeHybrid &&
(overhang_type & (BigFlat | ThinPlate))) { (overhang_type & (BigFlat | ThinPlate))) {
if (add_interface && xy_expansion > EPSILON && !is_sharp_tail) {
overhangs = safe_offset_inc(overhangs, xy_expansion, relevant_forbidden, scale_(MIN_BRANCH_RADIUS * 1.75), 0, 1);
}
overhangs_regular = offset_ex(intersection_ex(overhangs, m_ts_data->m_layer_outlines_below[layer_nr - 1]), radius_scaled); overhangs_regular = offset_ex(intersection_ex(overhangs, m_ts_data->m_layer_outlines_below[layer_nr - 1]), radius_scaled);
ExPolygons overhangs_normal = diff_ex(overhangs, overhangs_regular); ExPolygons overhangs_normal = diff_ex(overhangs, overhangs_regular);
overhangs_regular = intersection_ex(overhangs_regular, overhangs_no_extra_expand);
// if the outside area is still big, we can need normal nodes // if the outside area is still big, we can need normal nodes
for (auto &overhang : overhangs_normal) { for (auto &overhang : overhangs_normal) {
if (!is_stable(layer->bottom_z(), overhang, 0)) { if (!is_stable(layer->bottom_z(), overhang, 0)) {
overhangs_regular.emplace_back(overhang); ExPolygons unstable_overhangs = intersection_ex({overhang}, overhangs_no_extra_expand);
overhangs_regular.insert(overhangs_regular.end(), unstable_overhangs.begin(), unstable_overhangs.end());
continue; continue;
} }
BoundingBox overhang_bounds = get_extents(overhang); BoundingBox overhang_bounds = get_extents(overhang);
@ -3766,8 +3771,7 @@ void TreeSupport::generate_contact_points()
} }
} }
else{ else{
if (add_interface) overhangs = safe_offset_inc(overhangs, scale_(config.support_expansion.value), relevant_forbidden, scale_(MIN_BRANCH_RADIUS * 1.75), 0, 1); overhangs_regular = overhangs_no_extra_expand;
overhangs_regular = overhangs;
} }
for (auto &overhang : overhangs_regular) { for (auto &overhang : overhangs_regular) {