///<summary> This gets called when when the user runs this command.</summary> public override IRhinoCommand.result RunCommand(IRhinoCommandContext context) { MRhinoGetObject go = new MRhinoGetObject(); go.SetCommandPrompt("Select edge curve"); go.SetGeometryFilter(IRhinoGetObject.GEOMETRY_TYPE_FILTER.edge_object); go.GetObjects(1, 1); if (go.CommandResult() != IRhinoCommand.result.success) return go.CommandResult(); IRhinoObject obj = go.Object(0).Object(); IOnBrep brep = go.Object(0).Brep(); IOnBrepEdge edge = go.Object(0).Edge(); if (null == obj || null == brep || null == edge) return IRhinoCommand.result.failure; MRhinoObjectAttributes attribs = new MRhinoObjectAttributes(obj.Attributes()); if (attribs.GroupCount() > 0) attribs.RemoveFromAllGroups(); for (int i = 0; i < edge.TrimCount(); i++) { IOnBrepTrim trim = edge.Trim(i); if (null != trim) { IOnBrepFace face = trim.Face(); if (null != face) { OnBrep face_brep = brep.DuplicateFace(face.m_face_index, true); if (null != face_brep) { MRhinoBrepObject face_brep_obj = context.m_doc.AddBrepObject(face_brep, attribs); if (null != face_brep_obj) face_brep_obj.Select(); } } } } context.m_doc.Redraw(); return IRhinoCommand.result.success; }
public void SetBrep(IOnBrep brep) { if (null == brep || !brep.IsValid()) { return; } m_brep = brep; int face_count = m_brep.m_F.Count(); m_points.Reserve(face_count * SURFACE_ARROW_COUNT * SURFACE_ARROW_COUNT); m_normals.Reserve(face_count * SURFACE_ARROW_COUNT * SURFACE_ARROW_COUNT); m_points.SetCount(0); m_normals.SetCount(0); for (int i = 0; i < face_count; i++) { IOnBrepFace face = m_brep.m_F[i]; IOnBrepLoop loop = face.OuterLoop(); if (null == loop) { continue; } OnInterval udomain = face.Domain(0); OnInterval vdomain = face.Domain(1); if (loop.m_pbox.IsValid()) { OnInterval domain = new OnInterval(); domain.Set(loop.m_pbox.m_min.x, loop.m_pbox.m_max.x); domain.Intersection(udomain); if (domain.IsIncreasing()) { udomain.Set(domain.Min(), domain.Max()); } domain.Set(loop.m_pbox.m_min.y, loop.m_pbox.m_max.y); domain.Intersection(vdomain); if (domain.IsIncreasing()) { vdomain.Set(domain.Min(), domain.Max()); } } bool bUntrimmed = m_brep.FaceIsSurface(i); ArrayOnInterval intervals = new ArrayOnInterval(); bool bRev = face.m_bRev; for (double u = 0.0; u < SURFACE_ARROW_COUNT; u += 1.0) { double d = u / (SURFACE_ARROW_COUNT - 1.0); double s = udomain.ParameterAt(d); intervals.SetCount(0); if (bUntrimmed || RhUtil.RhinoGetIsoIntervals(face, 1, s, intervals) > 0) { for (double v = 0.0; v < SURFACE_ARROW_COUNT; v += 1.0) { d = v / (SURFACE_ARROW_COUNT - 1.0); double t = vdomain.ParameterAt(d); bool bAdd = bUntrimmed; for (int k = 0; !bAdd && k < intervals.Count(); k++) { if (intervals[k].Includes(t)) { bAdd = true; } } if (bAdd) { On3dPoint pt = new On3dPoint(); On3dVector du = new On3dVector(); On3dVector dv = new On3dVector(); On3dVector dir = new On3dVector(); if (face.EvNormal(s, t, ref pt, ref du, ref dv, ref dir)) { m_points.Append(pt); if (bRev) { dir.Reverse(); } m_normals.Append(dir); } } } } } } }