public static FaceIntersectionLineResult IntersectLine(this TopoDS_Face face, TopoDS_Face other, double tol)
{
var s1 = face.Surface();
var s2 = other.Surface();
var a = new GeomAPI_IntSS(s1, s2, tol);
var C = a.Line(1);
var edge = new BRepBuilderAPI_MakeEdge(C, C.FirstParameter(), C.LastParameter());
var v1 = edge.Vertex1();
var v2 = edge.Vertex2();
var i1 = BRep_Tool.Pnt(v1);
var i2 = BRep_Tool.Pnt(v2);
return(new FaceIntersectionLineResult(C, new Line3D(i1.ToVector3D(), i2.ToVector3D())));
}
public static TopoDS_Face Offset(this TopoDS_Face face, double off, Vector3D sideRefPt = null)
{
var surface = face.Surface();
var props = surface.LProp_SLProps(face.UVBounds());
var normal = props.Normal();
var offFact = 1.0;
if (sideRefPt != null)
{
if (!sideRefPt.Normalized().Concordant(Constants.NormalizedLengthTolerance, normal.ToVector3D()))
{
offFact *= -1;
}
}
return(new BRepOffset_Offset(face, off * offFact).Face());
}