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Initial port of Brim ear gizmo

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Cherry-picked from bambulab/BambuStudio@92c85a13d0

Co-authored-by: Mack <yongfang.bian@bambulab.com>
This commit is contained in:
Noisyfox
2025-02-17 11:19:07 +08:00
co-authored by Mack
parent 830c1ac928
commit 185fb3cb26
28 changed files with 1595 additions and 65 deletions
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src/libslic3r/Brim.cpp
+60 -21
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@@ -806,8 +806,8 @@ double configBrimWidthByVolumeGroups(double adhesion, double maxSpeed, const std
// Generate ears
// Ported from SuperSlicer: https://github.com/supermerill/SuperSlicer/blob/45d0532845b63cd5cefe7de7dc4ef0e0ed7e030a/src/libslic3r/Brim.cpp#L1116
static ExPolygons make_brim_ears(ExPolygons& obj_expoly, coord_t size_ear, coord_t ear_detection_length,
coordf_t brim_ears_max_angle, bool is_outer_brim) {
static ExPolygons make_brim_ears_auto(const ExPolygons& obj_expoly, coord_t size_ear, coord_t ear_detection_length,
coordf_t brim_ears_max_angle, bool is_outer_brim) {
ExPolygons mouse_ears_ex;
if (size_ear <= 0) {
return mouse_ears_ex;
@@ -815,7 +815,7 @@ static ExPolygons make_brim_ears(ExPolygons& obj_expoly, coord_t size_ear, coord
// Detect places to put ears
const coordf_t angle_threshold = (180 - brim_ears_max_angle) * PI / 180.0;
Points pt_ears;
for (ExPolygon &poly : obj_expoly) {
for (const ExPolygon &poly : obj_expoly) {
Polygon decimated_polygon = poly.contour;
if (ear_detection_length > 0) {
// decimate polygon
@@ -835,8 +835,8 @@ static ExPolygons make_brim_ears(ExPolygons& obj_expoly, coord_t size_ear, coord
// Then add ears
// create ear pattern
Polygon point_round;
for (size_t i = 0; i < POLY_SIDES; i++) {
double angle = (2.0 * PI * i) / POLY_SIDES;
for (size_t i = 0; i < POLY_SIDE_COUNT; i++) {
double angle = (2.0 * PI * i) / POLY_SIDE_COUNT;
point_round.points.emplace_back(size_ear * cos(angle), size_ear * sin(angle));
}
@@ -850,6 +850,41 @@ static ExPolygons make_brim_ears(ExPolygons& obj_expoly, coord_t size_ear, coord
return mouse_ears_ex;
}
static ExPolygons make_brim_ears(const PrintObject* object, const double& flowWidth, float brim_offset, Flow &flow, bool is_outer_brim)
{
ExPolygons mouse_ears_ex;
BrimPoints brim_ear_points = object->model_object()->brim_points;
if (brim_ear_points.size() <= 0) {
return mouse_ears_ex;
}
const Geometry::Transformation& trsf = object->model_object()->instances[0]->get_transformation();
Transform3d model_trsf = trsf.get_matrix_no_offset();
const Point &center_offset = object->center_offset();
model_trsf = model_trsf.pretranslate(Vec3d(- unscale<double>(center_offset.x()), - unscale<double>(center_offset.y()), 0));
for (auto &pt : brim_ear_points) {
Vec3f world_pos = pt.transform(trsf.get_matrix());
if ( world_pos.z() > 0) continue;
Polygon point_round;
float brim_width = floor(scale_(pt.head_front_radius) / flowWidth / 2) * flowWidth * 2;
if (is_outer_brim) {
double flowWidthScale = flowWidth / SCALING_FACTOR;
brim_width = floor(brim_width / flowWidthScale / 2) * flowWidthScale * 2;
}
coord_t size_ear = (brim_width - brim_offset - flow.scaled_spacing());
for (size_t i = 0; i < POLY_SIDE_COUNT; i++) {
double angle = (2.0 * PI * i) / POLY_SIDE_COUNT;
point_round.points.emplace_back(size_ear * cos(angle), size_ear * sin(angle));
}
mouse_ears_ex.emplace_back();
mouse_ears_ex.back().contour = point_round;
Vec3f pos = pt.transform(model_trsf);
int32_t pt_x = scale_(pos.x());
int32_t pt_y = scale_(pos.y());
mouse_ears_ex.back().contour.translate(Point(pt_x, pt_y));
}
return mouse_ears_ex;
}
//BBS: create all brims
static ExPolygons outer_inner_brim_area(const Print& print,
const float no_brim_offset, std::map<ObjectID, ExPolygons>& brimAreaMap,
@@ -888,9 +923,10 @@ static ExPolygons outer_inner_brim_area(const Print& print,
const float scaled_additional_brim_width = scale_(floor(5 / flowWidth / 2) * flowWidth * 2);
const float scaled_half_min_adh_length = scale_(1.1);
bool has_brim_auto = object->config().brim_type == btAutoBrim;
const bool use_brim_ears = object->config().brim_type == btEar;
const bool has_inner_brim = brim_type == btInnerOnly || brim_type == btOuterAndInner || use_brim_ears;
const bool has_outer_brim = brim_type == btOuterOnly || brim_type == btOuterAndInner || brim_type == btAutoBrim || use_brim_ears;
const bool use_auto_brim_ears = object->config().brim_type == btEar;
const bool use_brim_ears = object->config().brim_type == btPainted;
const bool has_inner_brim = brim_type == btInnerOnly || brim_type == btOuterAndInner || use_auto_brim_ears || use_brim_ears;
const bool has_outer_brim = brim_type == btOuterOnly || brim_type == btOuterAndInner || brim_type == btAutoBrim || use_auto_brim_ears || use_brim_ears;
coord_t ear_detection_length = scale_(object->config().brim_ears_detection_length.value);
coordf_t brim_ears_max_angle = object->config().brim_ears_max_angle.value;
@@ -951,27 +987,30 @@ static ExPolygons outer_inner_brim_area(const Print& print,
if (has_outer_brim) {
// BBS: inner and outer boundary are offset from the same polygon incase of round off error.
auto innerExpoly = offset_ex(ex_poly.contour, brim_offset, jtRound, SCALED_RESOLUTION);
auto &clipExpoly = innerExpoly;
ExPolygons outerExpoly;
if (use_brim_ears) {
outerExpoly = make_brim_ears(object, flowWidth, brim_offset, flow, true);
//outerExpoly = offset_ex(outerExpoly, brim_width_mod, jtRound, SCALED_RESOLUTION);
} else if (use_auto_brim_ears) {
coord_t size_ear = (brim_width_mod - brim_offset - flow.scaled_spacing());
append(brim_area_object, diff_ex(make_brim_ears(innerExpoly, size_ear, ear_detection_length, brim_ears_max_angle, true), clipExpoly));
} else {
// Normal brims
append(brim_area_object, diff_ex(offset_ex(innerExpoly, brim_width_mod, jtRound, SCALED_RESOLUTION), clipExpoly));
outerExpoly = make_brim_ears_auto(innerExpoly, size_ear, ear_detection_length, brim_ears_max_angle, true);
}else {
outerExpoly = offset_ex(innerExpoly, brim_width_mod, jtRound, SCALED_RESOLUTION);
}
append(brim_area_object, diff_ex(outerExpoly, innerExpoly));
}
if (has_inner_brim) {
auto outerExpoly = offset_ex(ex_poly_holes_reversed, -brim_offset);
auto clipExpoly = offset_ex(ex_poly_holes_reversed, -brim_width - brim_offset);
ExPolygons outerExpoly;
auto innerExpoly = offset_ex(ex_poly_holes_reversed, -brim_width - brim_offset);
if (use_brim_ears) {
outerExpoly = make_brim_ears(object, flowWidth, brim_offset, flow, false);
} else if (use_auto_brim_ears) {
coord_t size_ear = (brim_width - brim_offset - flow.scaled_spacing());
append(brim_area_object, diff_ex(make_brim_ears(outerExpoly, size_ear, ear_detection_length, brim_ears_max_angle, false), clipExpoly));
} else {
// Normal brims
append(brim_area_object, diff_ex(outerExpoly, clipExpoly));
outerExpoly = make_brim_ears_auto(offset_ex(ex_poly_holes_reversed, -brim_offset), size_ear, ear_detection_length, brim_ears_max_angle, false);
}else {
outerExpoly = offset_ex(ex_poly_holes_reversed, -brim_offset);
}
append(brim_area_object, diff_ex(outerExpoly, innerExpoly));
}
if (!has_inner_brim) {
// BBS: brim should be apart from holes