public List <CadFigure> FilterRootFigure(List <CadFigure> srcList)
{
HashSet <CadFigure> set = new HashSet <CadFigure>();
foreach (CadFigure fig in srcList)
{
set.Add(FigUtil.GetRootFig(fig));
}
List <CadFigure> ret = new List <CadFigure>();
ret.AddRange(set);
return(ret);
}
// option:
// e.g.
// a100q30 max area = 100, min degree = 30
// a100q max area = 100, min degree = default (20)
// min degree < 34
// Other options see
// https://www.cs.cmu.edu/~quake/triangle.switch.html
//
public void Triangulate(uint figID, string option)
{
CadFigure tfig = Controller.DB.GetFigure(figID);
if (tfig == null || tfig.Type != Types.POLY_LINES)
{
return;
}
if (tfig.PointCount < 3)
{
return;
}
CadFigure cfig = FigUtil.Clone(tfig);
Vector3d org = cfig.PointList[0].vector;
Vector3d dir = Vector3d.UnitZ;
Vector3d faceNormal = CadUtil.TypicalNormal(cfig.PointList);
Vector3d rotateV = default;
double t = 0;
if (!faceNormal.EqualsThreshold(dir) && !(-faceNormal).EqualsThreshold(dir))
{
rotateV = CadMath.Normal(faceNormal, dir);
t = -CadMath.AngleOfVector(faceNormal, dir);
CadUtil.RotateFigure(cfig, org, rotateV, t);
}
//Controller.CurrentLayer.AddFigure(cfig);
VertexList vl = cfig.GetPoints(12);
CadMesh m = IglW.Triangulate(vl, option);
HeModel hem = HeModelConverter.ToHeModel(m);
CadFigureMesh fig = (CadFigureMesh)Controller.DB.NewFigure(CadFigure.Types.MESH);
fig.SetMesh(hem);
for (int i = 0; i < fig.PointCount; i++)
{
CadVertex v = fig.PointList[i];
v.Z = org.Z;
fig.PointList[i] = v;
}
if (t != 0)
{
CadUtil.RotateFigure(fig, org, rotateV, -t);
}
CadOpeList root = new CadOpeList();
CadOpe ope;
ope = new CadOpeAddFigure(Controller.CurrentLayer.ID, fig.ID);
Session.AddOpe(ope);
Controller.CurrentLayer.AddFigure(fig);
ope = new CadOpeRemoveFigure(Controller.CurrentLayer, figID);
Session.AddOpe(ope);
Controller.CurrentLayer.RemoveFigureByID(figID);
Controller.CurrentFigure = null;
Session.PostRemakeObjectTree();
}
