// add full fill and subtract them from normal fill polys
void Layer::addFullPolygons(const vector<Poly> &newpolys, bool decor)
{
if (newpolys.size()==0) return;
Clipping clipp;
clipp.clear();
// full fill only where already normal fill
clipp.addPolys(fillPolygons,subject);
if (decor) clipp.addPolys(fullFillPolygons,subject);
clipp.addPolys(newpolys,clip);
clipp.setZ(Z);
vector<Poly> inter = clipp.intersect();
vector<Poly> normals = clipp.subtractMerged(thickness/2.);
if (decor) {// && LayerNo != 0) // no decor on base layers
decorPolygons.insert(decorPolygons.end(), inter.begin(), inter.end());
Clipping clipp;
clipp.addPolys(fullFillPolygons,subject);
clipp.addPolys(inter,clip);
clipp.setZ(Z);
setFullFillPolygons(clipp.subtract());
}
else {
fullFillPolygons.insert(fullFillPolygons.end(),inter.begin(),inter.end());
}
setNormalFillPolygons(normals);
// mergeFullPolygons(false); // done separately
}
void Model::MakeSupportPolygons(Layer * layer, // lower -> will change
const Layer * layerabove, // upper
double widen)
{
const double distance =
settings.GetExtrudedMaterialWidth(layer->thickness);
// vector<Poly> tosupport = Clipping::getOffset(layerabove->GetToSupportPolygons(),
// distance/2.);
//vector<Poly> tosupport = Clipping::getMerged(layerabove->GetToSupportPolygons(),
// distance);
vector<Poly> tosupport = layerabove->GetToSupportPolygons();
Clipping clipp;
clipp.addPolys(layerabove->GetSupportPolygons(), subject);
clipp.addPolys(tosupport, subject);
clipp.addPolys(layer->GetPolygons(), clip);
clipp.setZ(layer->getZ());
vector<Poly> spolys = clipp.subtract(CL::pftNonZero,CL::pftEvenOdd);
if (widen != 0) // widen from layer to layer
spolys = clipp.getOffset(spolys, widen * layer->thickness);
spolys = clipp.getMerged(spolys,distance);
layer->setSupportPolygons(spolys);
}
vector<Poly> Layer::getOverhangs() const
{
vector<Poly> overhangs;
if (previous!=NULL) {
Clipping clipp;
clipp.addPolys(polygons, subject);
vector<Poly> prevoffset = Clipping::getOffset(previous->polygons, thickness/2);
clipp.addPolys(prevoffset, clip);
clipp.setZ(Z);
overhangs = clipp.subtract();//CL::pftNonZero,CL::pftNonZero);
}
return overhangs;
}