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;
}
}
