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Fix Filltrapezoidal layer rotation with infill combination (#13276)

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This commit is contained in:
Rodrigo Faselli
2026-04-19 18:40:37 -03:00
committed by GitHub
parent 43da0f7d9a
commit 298dbb6f72
1 changed files with 4 additions and 3 deletions
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7
src/libslic3r/Fill/FillRectilinear.cpp
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@@ -3082,6 +3082,7 @@ bool FillRectilinear::fill_surface_trapezoidal(
// Use extended object bounding box for consistent pattern across layers
BoundingBox bb = this->extended_object_bounding_box();
const size_t infill_layer_id = (surface->thickness_layers > 0) ? this->layer_id / surface->thickness_layers : this->layer_id;
switch (Pattern_type) {
case 0: // Grid / Trapezoidal
@@ -3144,8 +3145,8 @@ bool FillRectilinear::fill_surface_trapezoidal(
flip_vertical = !flip_vertical;
}
// transpose points for odd layers
if (layer_id % 2 == 1) {
// transpose points for odd infill layers (taking infill combination into account)
if (infill_layer_id % 2 == 1) {
for (Polyline& pl : polylines) {
for (Point& p : pl.points) {
std::swap(p.x(), p.y());
@@ -3174,7 +3175,7 @@ bool FillRectilinear::fill_surface_trapezoidal(
// Align bounding box to the grid
bb.merge(align_to_grid(bb.center(), Point(period,h)));
const int layer_mod = layer_id % 3;
const size_t layer_mod = infill_layer_id % 3;
const double angle = layer_mod * 2.0 * M_PI / 3.0;
const Point rotation_center = bb.center();