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Fix the gap-route early-out to test the tower body, not the brim envelope

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An approach starting over the first-layer brim ring skipped routing and
travelled straight across the printed wall; only starts over the tower body
itself may go direct.
This commit is contained in:
SoftFever
2026-08-03 15:22:15 +08:00
parent 72998ddda2
commit 1e0fb1a0ae
1 changed files with 9 additions and 1 deletions
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10
src/libslic3r/GCode.cpp
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@@ -956,7 +956,15 @@ static std::vector<Vec2d> get_path_of_change_filament(const Print& print)
for (auto& p : avoid_points.points) for (auto& p : avoid_points.points)
p = wipe_tower_point_to_object_point(gcodegen, transform_wt2_pt(unscale(p).cast<float>()) + plate_origin_2d); p = wipe_tower_point_to_object_point(gcodegen, transform_wt2_pt(unscale(p).cast<float>()) + plate_origin_2d);
BoundingBox avoid_bbx(avoid_points.points); BoundingBox avoid_bbx(avoid_points.points);
if (avoid_bbx.contains(route_start)) // The avoid envelope covers the first-layer brim (and rib flare), which a travel
// may cross freely: early-out only when the approach already starts over the
// tower body itself, so a start between the wall and the brim edge still gets
// routed in through the wall opening.
const float body_width = gcodegen.m_config.wipe_tower_wall_type.value == WipeTowerWallType::wtwRib ? m_wipe_tower_depth : m_right;
Polygon body_points = scaled(BoundingBoxf(Vec2d(0., 0.), Vec2d(body_width, m_wipe_tower_depth))).polygon();
for (auto& p : body_points.points)
p = wipe_tower_point_to_object_point(gcodegen, transform_wt2_pt(unscale(p).cast<float>()) + plate_origin_2d);
if (BoundingBox(body_points.points).contains(route_start))
return {}; return {};
const Polygons bed_polygons = printer_travel_polygons(gcodegen); const Polygons bed_polygons = printer_travel_polygons(gcodegen);
// The router inflates the avoid box by wipe_tower_routing_clearance and refuses // The router inflates the avoid box by wipe_tower_routing_clearance and refuses