public static DPoint3d closestPointOnSurf(DPoint3d point, ISurface surf, double tol)
{
Bentley.Interop.MicroStationDGN.Point3d cpRef = new Bentley.Interop.MicroStationDGN.Point3d();
cpRef.X = point.X;
cpRef.Y = point.Y;
cpRef.Z = point.Z;
Bentley.Interop.MicroStationDGN.Point3d cp = new Bentley.Interop.MicroStationDGN.Point3d();
Bentley.Interop.MicroStationDGN.Point2d cp2d = new Bentley.Interop.MicroStationDGN.Point2d();
GeometryTools.BSplineSurfaceComputeMinimumDistance(ref cp, ref cp2d, ref cpRef, tol, surf.com_bsplineSurface);
return new DPoint3d(cp.X, cp.Y, cp.Z);
}
public static DPoint3d closestPointOnSurf(DPoint3d point, ISurface surf, double tol, out double Dist, out Point2d UV, out DVector3d normal)
{
Bentley.Interop.MicroStationDGN.Point3d cpRef = new Bentley.Interop.MicroStationDGN.Point3d();
cpRef.X = point.X;
cpRef.Y = point.Y;
cpRef.Z = point.Z;
Bentley.Interop.MicroStationDGN.Point3d cp = new Bentley.Interop.MicroStationDGN.Point3d();
Bentley.Interop.MicroStationDGN.Point2d cp2d = new Bentley.Interop.MicroStationDGN.Point2d();
Dist = GeometryTools.BSplineSurfaceComputeMinimumDistance(ref cp, ref cp2d, ref cpRef, tol, surf.com_bsplineSurface);
UV = new Point2d();
UV.X = cp2d.X;
UV.Y = cp2d.Y;
normal = NormalAtUVParameterOnSurface(surf.com_bsplineSurface, UV.X, UV.Y);
return new DPoint3d(cp.X, cp.Y, cp.Z);
}
public static void ScanBSplineSurface()
{
BCOM.Application app = Program.COM_App;
BCOM.ElementScanCriteria sc = new BCOM.ElementScanCriteriaClass();
sc.ExcludeAllTypes();
sc.IncludeType(BCOM.MsdElementType.BsplineSurface);
var ee = app.ActiveModelReference.Scan(sc);
//var firstcurrent = ee.Current;
var bsplinesurface = new List <BCOM.BsplineSurface>();
while (ee.MoveNext())
{
bsplinesurface.Add(ee.Current.AsBsplineSurfaceElement().ExtractBsplineSurface());
}
//foreach (var surface in bsplinesurface)
//{
// //var surfacehandler = app.CreatePropertyHandler(surface);
// //string s= surfacehandler.GetDisplayString();
//}
BCOM.Point3d p1 = app.Point3dFromXYZ(200, 110, 100);
BCOM.Ray3d ray1 = new Bentley.Interop.MicroStationDGN.Ray3d()
{
Origin = app.Point3dFromXYZ(200, 110, 100),
Direction = app.Point3dFromXYZ(0, 0, -200)
};
BCOM.Point3d insertpoint = app.Point3dZero();
BCOM.Point2d uv = app.Point2dZero();
foreach (var bsp in bsplinesurface)
{
if (bsp.IntersectRay3d(ref insertpoint, ref uv, ref ray1))
{
string s = insertpoint.ToString();
string s2 = uv.ToString();
}
}
}