protected virtual List <GeneralPolygon2d> filter_solids(List <GeneralPolygon2d> solids)
{
if (MIN_AREA > 0)
{
return(CurveUtils2.FilterDegenerate(solids, MIN_AREA));
}
else
{
return(solids);
}
}
virtual protected void cache_brim_polys()
{
combined_solid = new List <GeneralPolygon2d>();
combined_support = new List <GeneralPolygon2d>();
subtract = new List <GeneralPolygon2d>();
Frame3f cutPlane = new Frame3f((float)layer_height * 0.5f * Vector3f.AxisY, Vector3f.AxisY);
foreach (var so in CC.Objects.PrintMeshes)
{
if (so.Settings.ObjectType == PrintMeshSettings.ObjectTypes.Ignored)
{
continue;
}
SOSectionPlane section = new SOSectionPlane(so);
section.UpdateSection(cutPlane, CoordSpace.SceneCoords);
List <GeneralPolygon2d> solids = section.GetSolids();
// [TODO] should subtract holes explicitly here, like we do in slicer?
if (so.Settings.ObjectType == PrintMeshSettings.ObjectTypes.Cavity)
{
subtract = ClipperUtil.Union(solids, subtract);
}
else if (so.Settings.ObjectType == PrintMeshSettings.ObjectTypes.Support)
{
combined_support = ClipperUtil.Union(solids, combined_support);
}
else if (so.Settings.ObjectType == PrintMeshSettings.ObjectTypes.Solid)
{
combined_solid = ClipperUtil.Union(solids, combined_solid);
}
}
if (subtract.Count > 0)
{
combined_solid = ClipperUtil.Difference(combined_solid, subtract);
}
combined_all = ClipperUtil.Union(combined_solid, combined_support);
combined_all = CurveUtils2.FilterDegenerate(combined_all, 0.001);
foreach (var poly in combined_all)
{
poly.Simplify(path_width * 0.02);
}
}
virtual public void PreRender()
{
if (in_shutdown())
{
return;
}
if (parameters_dirty)
{
// offset
List <GeneralPolygon2d> offset = ClipperUtil.RoundOffset(combined_all, offset_distance);
// aggressively simplify after round offset...
foreach (var poly in offset)
{
poly.Simplify(path_width);
}
// subtract initial and add tiny gap so these don't get merged by slicer
if (SubtractSolids)
{
offset = ClipperUtil.Difference(offset, combined_solid);
offset = ClipperUtil.MiterOffset(offset, -path_width * 0.1);
}
offset = CurveUtils2.FilterDegenerate(offset, 0.001);
foreach (var poly in offset)
{
poly.Simplify(path_width * 0.02);
}
DMesh3 mesh = new DMesh3();
MeshEditor editor = new MeshEditor(mesh);
foreach (var poly in offset)
{
TriangulatedPolygonGenerator polygen = new TriangulatedPolygonGenerator()
{
Polygon = poly
};
editor.AppendMesh(polygen.Generate().MakeDMesh());
}
MeshTransforms.ConvertZUpToYUp(mesh);
if (mesh.TriangleCount > 0)
{
MeshExtrudeMesh extrude = new MeshExtrudeMesh(mesh);
extrude.ExtrudedPositionF = (v, n, vid) => {
return(v + Layers * layer_height * Vector3d.AxisY);
};
extrude.Extrude();
MeshTransforms.Translate(mesh, -mesh.CachedBounds.Min.y * Vector3d.AxisY);
}
PreviewSO.ReplaceMesh(mesh, true);
//Vector3d translate = scene_bounds.Point(1, -1, 1);
//translate.x += spiral.Bounds.Width + PathWidth;
//Frame3f sceneF = Frame3f.Identity.Translated((Vector3f)translate);
//PreviewSO.SetLocalFrame(sceneF, CoordSpace.SceneCoords);
parameters_dirty = false;
}
}