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stage in changes from off-plate-gravity and remove stuff I didn't need

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This commit is contained in:
harrierpigeon
2026-03-11 00:27:14 -05:00
committed by Joseph Robertson
parent 0a762dfede
commit 08aa277974
26 changed files with 230 additions and 37 deletions
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18
src/libslic3r/Support/TreeSupport.cpp
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@@ -671,6 +671,11 @@ void TreeSupport::detect_overhangs(bool check_support_necessity/* = false*/)
double thresh_angle = config.support_threshold_angle.value > EPSILON ? config.support_threshold_angle.value + 1 : 30;
thresh_angle = std::min(thresh_angle, 89.); // should be smaller than 90
const double threshold_rad = Geometry::deg2rad(thresh_angle);
// Build plate tilt: compute per-layer XY shift for tilted gravity direction
const PrintConfig& print_cfg = m_object->print()->config();
const double tilt_x_rad = Geometry::deg2rad(print_cfg.build_plate_tilt_x.value);
const double tilt_y_rad = Geometry::deg2rad(print_cfg.build_plate_tilt_y.value);
const bool has_tilt = std::abs(tilt_x_rad) > EPSILON || std::abs(tilt_y_rad) > EPSILON;
// FIXME this is a fudge constant!
double support_tree_tip_diameter = 0.8;
auto enforcer_overhang_offset = scaled<double>(support_tree_tip_diameter);
@@ -813,8 +818,19 @@ void TreeSupport::detect_overhangs(bool check_support_necessity/* = false*/)
ExPolygons& curr_polys = layer->lslices_extrudable;
ExPolygons& lower_polys = lower_layer->lslices_extrudable;
// Apply build plate tilt: shift lower layer polygons to simulate tilted gravity
ExPolygons shifted_lower;
if (has_tilt) {
shifted_lower = lower_polys; // copy
const double lh = lower_layer->height;
Point tilt_shift(coord_t(scale_(lh * tan(tilt_y_rad))),
coord_t(scale_(lh * tan(tilt_x_rad))));
translate(shifted_lower, tilt_shift);
}
const ExPolygons &effective_lower = has_tilt ? shifted_lower : lower_polys;
// normal overhang
ExPolygons lower_layer_offseted = offset_ex(lower_polys, support_offset_scaled, SUPPORT_SURFACES_OFFSET_PARAMETERS);
ExPolygons lower_layer_offseted = offset_ex(effective_lower, support_offset_scaled, SUPPORT_SURFACES_OFFSET_PARAMETERS);
overhangs_all_layers[layer_nr] = std::move(diff_ex(curr_polys, lower_layer_offseted));
double duration{ std::chrono::duration_cast<second_>(clock_::now() - t0).count() };