/// <summary> /// Projects points onto breps. /// </summary> /// <param name="breps">The breps projection targets.</param> /// <param name="points">The points to project.</param> /// <param name="direction">The direction to project.</param> /// <param name="tolerance">The tolerance used for intersections.</param> /// <returns> /// Array of projected points, or null in case of any error or invalid input. /// </returns> /// <example> /// <code source='examples\vbnet\ex_projectpointstobreps.vb' lang='vbnet'/> /// <code source='examples\cs\ex_projectpointstobreps.cs' lang='cs'/> /// <code source='examples\py\ex_projectpointstobreps.py' lang='py'/> /// </example> public static Point3d[] ProjectPointsToBreps(IEnumerable<Brep> breps, IEnumerable<Point3d> points, Vector3d direction, double tolerance) { Point3d[] rc = null; if (breps != null && points != null) { Rhino.Runtime.InteropWrappers.SimpleArrayBrepPointer brep_array = new Rhino.Runtime.InteropWrappers.SimpleArrayBrepPointer(); foreach (Brep brep in breps) brep_array.Add(brep, true); Rhino.Collections.Point3dList inputpoints = new Rhino.Collections.Point3dList(points); if (inputpoints.Count > 0) { IntPtr pConstBrepArray = brep_array.ConstPointer(); using (Runtime.InteropWrappers.SimpleArrayPoint3d output = new Rhino.Runtime.InteropWrappers.SimpleArrayPoint3d()) { IntPtr pOutput = output.NonConstPointer(); if (UnsafeNativeMethods.RHC_RhinoProjectPointsToBreps(pConstBrepArray, direction, tolerance, inputpoints.Count, inputpoints.m_items, pOutput)) rc = output.ToArray(); } } } return rc; }