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Fix of "Problem with larger brim overlapping "

Browse source 
https://github.com/prusa3d/Slic3r/issues/373
This commit is contained in:
bubnikv 2017-07-07 16:40:23 +02:00
parent 434f538919
commit 774c69e3c6
5 changed files with 76 additions and 73 deletions
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37
xs/src/libslic3r/Print.cpp
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@ -901,6 +901,43 @@ void Print::_make_skirt()
this->skirt.reverse();
}
void Print::_make_brim()
{
// Brim is only printed on first layer and uses perimeter extruder.
Flow flow = this->brim_flow();
Polygons islands;
for (PrintObject *object : this->objects) {
Polygons object_islands;
for (ExPolygon &expoly : object->layers.front()->slices.expolygons)
object_islands.push_back(expoly.contour);
if (! object->support_layers.empty())
object->support_layers.front()->support_fills.polygons_covered_by_spacing(object_islands, float(SCALED_EPSILON));
islands.reserve(islands.size() + object_islands.size() * object->_shifted_copies.size());
for (const Point &pt : object->_shifted_copies)
for (Polygon &poly : object_islands) {
islands.push_back(poly);
islands.back().translate(pt);
}
}
Polygons loops;
size_t num_loops = size_t(floor(this->config.brim_width.value / flow.width));
for (size_t i = 0; i < num_loops; ++ i) {
islands = offset(islands, float(flow.scaled_spacing()), jtSquare);
for (Polygon &poly : islands) {
// poly.simplify(SCALED_RESOLUTION);
poly.points.push_back(poly.points.front());
Points p = MultiPoint::_douglas_peucker(poly.points, SCALED_RESOLUTION);
p.pop_back();
poly.points = std::move(p);
}
polygons_append(loops, offset(islands, -0.5f * float(flow.scaled_spacing())));
}
loops = union_pt_chained(loops, false);
std::reverse(loops.begin(), loops.end());
extrusion_entities_append_loops(this->brim.entities, std::move(loops), erSkirt, float(flow.mm3_per_mm()), float(flow.width), float(this->skirt_first_layer_height()));
}
// Wipe tower support.
bool Print::has_wipe_tower()
{