Commit | Line | Data |
---|---|---|
b311480e | 1 | // Created on: 2007-08-04 |
2 | // Created by: Alexander GRIGORIEV | |
973c2be1 | 3 | // Copyright (c) 2007-2014 OPEN CASCADE SAS |
b311480e | 4 | // |
973c2be1 | 5 | // This file is part of Open CASCADE Technology software library. |
b311480e | 6 | // |
d5f74e42 | 7 | // This library is free software; you can redistribute it and/or modify it under |
8 | // the terms of the GNU Lesser General Public License version 2.1 as published | |
973c2be1 | 9 | // by the Free Software Foundation, with special exception defined in the file |
10 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT | |
11 | // distribution for complete text of the license and disclaimer of any warranty. | |
b311480e | 12 | // |
973c2be1 | 13 | // Alternatively, this file may be used under the terms of Open CASCADE |
14 | // commercial license or contractual agreement. | |
7fd59977 | 15 | |
16 | #include <VrmlData_ShapeConvert.hxx> | |
17 | #include <VrmlData_Scene.hxx> | |
18 | #include <VrmlData_Group.hxx> | |
19 | #include <VrmlData_Coordinate.hxx> | |
20 | #include <VrmlData_IndexedFaceSet.hxx> | |
21 | #include <VrmlData_IndexedLineSet.hxx> | |
22 | #include <VrmlData_ShapeNode.hxx> | |
23 | #include <BRepMesh_IncrementalMesh.hxx> | |
24 | #include <BRep_Builder.hxx> | |
25 | #include <BRep_Tool.hxx> | |
26 | #include <Geom_Surface.hxx> | |
27 | #include <NCollection_DataMap.hxx> | |
28 | #include <Poly_Triangulation.hxx> | |
29 | #include <Poly_Connect.hxx> | |
30 | #include <Poly_PolygonOnTriangulation.hxx> | |
31 | #include <Poly_Polygon3D.hxx> | |
32 | #include <Precision.hxx> | |
33 | #include <TColgp_Array1OfPnt2d.hxx> | |
34 | #include <TopExp_Explorer.hxx> | |
35 | #include <TopoDS.hxx> | |
36 | #include <TopoDS_Edge.hxx> | |
37 | #include <TopoDS_Face.hxx> | |
38 | #include <TopoDS_Shape.hxx> | |
39 | #include <TopoDS_Wire.hxx> | |
40 | #include <GCPnts_TangentialDeflection.hxx> | |
41 | #include <BRepAdaptor_Curve.hxx> | |
42 | #include <TColStd_Array1OfReal.hxx> | |
43 | #include <TColStd_HArray1OfReal.hxx> | |
44 | #include <TShort_Array1OfShortReal.hxx> | |
45 | #include <GeomLib.hxx> | |
46 | #include <TShort_HArray1OfShortReal.hxx> | |
47 | ||
48 | //======================================================================= | |
49 | //function : IsEqual | |
50 | //purpose : for NCollection_DataMap interface | |
51 | //======================================================================= | |
52 | ||
53 | inline Standard_Boolean IsEqual (const TopoDS_Shape& one, | |
54 | const TopoDS_Shape& two) | |
55 | { | |
56 | return one == two; | |
57 | } | |
58 | ||
59 | //======================================================================= | |
60 | //function : AddShape | |
61 | //purpose : | |
62 | //======================================================================= | |
63 | ||
64 | void VrmlData_ShapeConvert::AddShape (const TopoDS_Shape& theShape, | |
65 | const char * theName) | |
66 | { | |
67 | ShapeData aData;/* = { - compilation problem on SUN | |
68 | TCollection_AsciiString(), | |
69 | theShape, | |
70 | NULL | |
71 | };*/ | |
72 | aData.Shape = theShape; | |
73 | aData.Node = NULL; | |
74 | ||
75 | if (theName) { | |
76 | char buf[2048], * optr = &buf[0]; | |
77 | char * eptr = &buf[sizeof(buf)-1]; | |
78 | for (const char * ptr = theName;; ptr++) { | |
8263fcd3 | 79 | char sym = *ptr; |
7fd59977 | 80 | if (sym == '\0' || sym == '\n' || sym == '\r') { |
81 | * optr = '\0'; | |
82 | break; | |
83 | } | |
84 | if (sym == '\"' || sym == '\\') | |
85 | * optr = '/'; | |
86 | else if (sym == '.') | |
87 | * optr = '_'; | |
88 | else | |
89 | * optr = sym; | |
90 | if (++optr >= eptr) { | |
91 | *optr = '\0'; | |
92 | break; | |
93 | } | |
94 | } | |
95 | aData.Name = buf; | |
96 | } | |
97 | myShapes.Append (aData); | |
98 | } | |
99 | ||
100 | //======================================================================= | |
101 | //function : Convert | |
102 | //purpose : | |
103 | //======================================================================= | |
104 | ||
105 | void VrmlData_ShapeConvert::Convert (const Standard_Boolean theExtractFaces, | |
106 | const Standard_Boolean theExtractEdges, | |
107 | const Standard_Real theDeflection, | |
108 | const Standard_Real theDeflAngle) | |
109 | { | |
110 | const Standard_Real aDeflection = | |
111 | theDeflection < 0.0001 ? 0.0001 : theDeflection; | |
112 | ||
113 | Standard_Boolean Extract[2] = {theExtractFaces, theExtractEdges}; | |
114 | TopAbs_ShapeEnum ShapeType[2] = {TopAbs_FACE, TopAbs_EDGE}; | |
115 | Standard_Integer i; | |
116 | ||
117 | const Handle(NCollection_IncAllocator) anAlloc = new NCollection_IncAllocator; | |
118 | ||
119 | // Relocation map for converted shapes. We should distinguish both TShape | |
120 | // and Orientation in this map. | |
121 | NCollection_DataMap <TopoDS_Shape,Handle(VrmlData_Geometry)> | |
122 | aRelMap (100, anAlloc); | |
123 | ||
124 | ||
125 | NCollection_List<ShapeData>::Iterator anIter (myShapes); | |
126 | for (; anIter.More(); anIter.Next()) { | |
127 | ||
128 | ShapeData& aData = anIter.ChangeValue(); | |
129 | Handle(VrmlData_Group) aGroup = | |
130 | new VrmlData_Group (myScene, aData.Name.ToCString()); | |
131 | myScene.AddNode (aGroup); | |
132 | ||
133 | for(i = 0; i < 2; ++i) { | |
134 | ||
135 | if(!Extract[i]) continue; | |
136 | ||
137 | TopExp_Explorer anExp (aData.Shape, ShapeType[i]); | |
138 | for (; anExp.More(); anExp.Next()) { | |
139 | const TopoDS_Shape& aShape = anExp.Current(); | |
140 | TopLoc_Location aLoc; | |
141 | Handle(VrmlData_Geometry) aTShapeNode; | |
142 | const Standard_Boolean isReverse=(aShape.Orientation()==TopAbs_REVERSED); | |
143 | ||
144 | TopoDS_Shape aTestedShape; | |
145 | aTestedShape.TShape (aShape.TShape()); | |
146 | aTestedShape.Orientation (isReverse ? TopAbs_REVERSED : TopAbs_FORWARD); | |
147 | Standard_Boolean isTessellate (Standard_False); | |
148 | switch (ShapeType[i]) { | |
149 | case TopAbs_FACE: | |
150 | { | |
151 | const TopoDS_Face& aFace = TopoDS::Face (aShape); | |
152 | if (aFace.IsNull() == Standard_False) { | |
153 | Handle(Poly_Triangulation) aTri = | |
154 | BRep_Tool::Triangulation (aFace, aLoc); | |
155 | ||
156 | if (aRelMap.IsBound (aTestedShape)) { | |
157 | aTShapeNode = aRelMap(aTestedShape); | |
158 | break; | |
159 | } | |
160 | ||
161 | if (aTri.IsNull()) | |
162 | isTessellate = Standard_True; | |
163 | // Check the existing deflection | |
164 | else if (aTri->Deflection() > aDeflection+ Precision::Confusion()) | |
165 | isTessellate = Standard_True; | |
166 | if (isTessellate) { | |
167 | // Triangulate the face by the standard OCC mesher | |
168 | BRepMesh_IncrementalMesh IM (aFace, aDeflection, Standard_False, theDeflAngle); | |
169 | aTri = BRep_Tool::Triangulation (aFace, aLoc); | |
170 | } | |
171 | if (aTri.IsNull() == Standard_False) { | |
172 | TopoDS_Shape aTestedShapeRev = aTestedShape; | |
173 | aTestedShapeRev.Orientation (isReverse ? | |
174 | TopAbs_FORWARD : TopAbs_REVERSED); | |
175 | Handle(VrmlData_IndexedFaceSet) aFaceSetToReuse; | |
176 | if (aRelMap.IsBound (aTestedShapeRev)) | |
177 | aFaceSetToReuse = Handle(VrmlData_IndexedFaceSet)::DownCast | |
178 | (aRelMap(aTestedShapeRev)); | |
179 | ||
180 | Handle(VrmlData_Coordinate) aCoordToReuse; | |
181 | if (aFaceSetToReuse.IsNull() == Standard_False) | |
182 | aCoordToReuse = aFaceSetToReuse->Coordinates(); | |
183 | ||
184 | aTShapeNode = triToIndexedFaceSet (aTri, aFace, aCoordToReuse); | |
185 | myScene.AddNode (aTShapeNode, Standard_False); | |
186 | // Bind the converted face | |
187 | aRelMap.Bind (aTestedShape, aTShapeNode); | |
188 | } | |
189 | } | |
190 | } | |
191 | break; | |
192 | case TopAbs_WIRE: | |
193 | { | |
194 | const TopoDS_Wire& aWire = TopoDS::Wire (aShape); | |
195 | if (aWire.IsNull() == Standard_False) { | |
196 | } | |
197 | } | |
198 | break; | |
199 | case TopAbs_EDGE: | |
200 | { | |
201 | const TopoDS_Edge& aEdge = TopoDS::Edge (aShape); | |
202 | if (aEdge.IsNull() == Standard_False) { | |
203 | Handle(Poly_Polygon3D) aPol = BRep_Tool::Polygon3D (aEdge, aLoc); | |
204 | ||
205 | if (aRelMap.IsBound (aTestedShape)) { | |
206 | aTShapeNode = aRelMap(aTestedShape); | |
207 | break; | |
208 | } | |
209 | // Check the presence of reversly oriented Edge. It can also be used | |
210 | // because we do not distinguish the orientation for edges. | |
211 | aTestedShape.Orientation (isReverse ? | |
212 | TopAbs_FORWARD : TopAbs_REVERSED); | |
213 | if (aRelMap.IsBound (aTestedShape)) { | |
214 | aTShapeNode = aRelMap(aTestedShape); | |
215 | break; | |
216 | } | |
217 | ||
218 | if (aPol.IsNull()) | |
219 | isTessellate = Standard_True; | |
220 | // Check the existing deflection | |
221 | else if (aPol->Deflection() > aDeflection+ Precision::Confusion() | |
222 | && BRep_Tool::IsGeometric(aEdge)) | |
223 | isTessellate = Standard_True; | |
224 | ||
225 | if (isTessellate && BRep_Tool::IsGeometric(aEdge)) { | |
226 | //try to find PolygonOnTriangulation | |
227 | Handle(Poly_PolygonOnTriangulation) aPT; | |
228 | Handle(Poly_Triangulation) aT; | |
229 | TopLoc_Location aL; | |
230 | ||
231 | Standard_Boolean found = Standard_False; | |
302f96fb | 232 | for(i = 1; ; i++) { |
7fd59977 | 233 | |
234 | BRep_Tool::PolygonOnTriangulation(aEdge, aPT, aT, aL, i); | |
235 | ||
236 | if(aPT.IsNull() || aT.IsNull()) break; | |
237 | ||
238 | if(aPT->Deflection() <= aDeflection + Precision::Confusion() && | |
239 | aPT->HasParameters()) { | |
240 | found = Standard_True; | |
241 | break; | |
242 | } | |
243 | ||
244 | } | |
245 | ||
246 | if(found) { | |
247 | ||
248 | BRepAdaptor_Curve aCurve(aEdge); | |
249 | Handle(TColStd_HArray1OfReal) aPrs = aPT->Parameters(); | |
250 | Standard_Integer nbNodes = aPT->NbNodes(); | |
251 | TColgp_Array1OfPnt arrNodes(1, nbNodes); | |
252 | TColStd_Array1OfReal arrUVNodes(1, nbNodes); | |
253 | ||
d497b314 P |
254 | for(Standard_Integer j = 1; j <= nbNodes; j++) { |
255 | arrUVNodes(j) = aPrs->Value(aPrs->Lower() + j - 1); | |
256 | arrNodes(j) = aCurve.Value(arrUVNodes(j)); | |
7fd59977 | 257 | } |
258 | aPol = new Poly_Polygon3D(arrNodes, arrUVNodes); | |
259 | aPol->Deflection (aPT->Deflection()); | |
260 | } | |
261 | else{ | |
262 | ||
263 | BRepAdaptor_Curve aCurve(aEdge); | |
264 | const Standard_Real aFirst = aCurve.FirstParameter(); | |
265 | const Standard_Real aLast = aCurve.LastParameter(); | |
266 | ||
267 | GCPnts_TangentialDeflection TD (aCurve, aFirst, aLast, | |
268 | theDeflAngle, aDeflection, 2); | |
269 | const Standard_Integer nbNodes = TD.NbPoints(); | |
270 | ||
271 | TColgp_Array1OfPnt arrNodes(1, nbNodes); | |
272 | TColStd_Array1OfReal arrUVNodes(1, nbNodes); | |
d497b314 P |
273 | for (Standard_Integer j = 1; j <= nbNodes; j++) { |
274 | arrNodes(j) = TD.Value(j); | |
275 | arrUVNodes(j) = TD.Parameter(j); | |
7fd59977 | 276 | } |
277 | aPol = new Poly_Polygon3D(arrNodes, arrUVNodes); | |
278 | aPol->Deflection (aDeflection); | |
279 | } | |
280 | ||
281 | BRep_Builder aBld; | |
282 | aBld.UpdateEdge (aEdge, aPol); | |
283 | } | |
284 | aTShapeNode = polToIndexedLineSet (aPol); | |
285 | myScene.AddNode (aTShapeNode, Standard_False); | |
286 | // Bind the converted face | |
287 | aRelMap.Bind (aTestedShape, aTShapeNode); | |
288 | } | |
289 | } | |
290 | break; | |
566f8441 | 291 | default: |
292 | break; | |
7fd59977 | 293 | } |
294 | ||
295 | if (aTShapeNode.IsNull() == Standard_False) { | |
296 | const Handle(VrmlData_ShapeNode) aShapeNode = | |
297 | new VrmlData_ShapeNode (myScene, 0L); | |
298 | aShapeNode->SetAppearance (ShapeType[i] == TopAbs_FACE ? | |
299 | defaultMaterialFace():defaultMaterialEdge()); | |
300 | myScene.AddNode (aShapeNode, Standard_False); | |
301 | aShapeNode->SetGeometry (aTShapeNode); | |
302 | if (aLoc.IsIdentity()) | |
303 | // Store the shape node directly into the main Group. | |
304 | aGroup->AddNode (aShapeNode); | |
305 | else { | |
306 | // Create a Transform grouping node | |
307 | Handle(VrmlData_Group) aTrans = new VrmlData_Group (myScene, 0L, | |
308 | Standard_True); | |
309 | gp_Trsf aTrsf (aLoc); | |
310 | if (fabs(myScale - 1.) > Precision::Confusion()) { | |
311 | const gp_XYZ aTransl = aTrsf.TranslationPart() * myScale; | |
312 | aTrsf.SetTranslationPart (aTransl); | |
313 | } | |
314 | aTrans->SetTransform (aTrsf); | |
315 | myScene.AddNode (aTrans, Standard_False); | |
316 | aGroup->AddNode (aTrans); | |
317 | ||
318 | // Store the shape node under the transform. | |
319 | aTrans->AddNode (aShapeNode); | |
320 | } | |
321 | } | |
322 | } | |
323 | } | |
324 | } | |
325 | myShapes.Clear(); | |
326 | } | |
327 | ||
328 | //======================================================================= | |
329 | //function : triToIndexedFaceSet | |
330 | //purpose : | |
331 | //======================================================================= | |
332 | ||
857ffd5e | 333 | Handle(VrmlData_Geometry) VrmlData_ShapeConvert::triToIndexedFaceSet |
334 | (const Handle(Poly_Triangulation)& theTri, | |
7fd59977 | 335 | const TopoDS_Face& theFace, |
857ffd5e | 336 | const Handle(VrmlData_Coordinate)& theCoord) |
7fd59977 | 337 | { |
338 | Standard_Integer i; | |
339 | const Standard_Integer nNodes (theTri->NbNodes()); | |
340 | const Standard_Integer nTriangles (theTri->NbTriangles()); | |
341 | const TColgp_Array1OfPnt& arrPolyNodes = theTri->Nodes(); | |
342 | const Poly_Array1OfTriangle& arrTriangles = theTri->Triangles(); | |
343 | ||
344 | const Handle(VrmlData_IndexedFaceSet) aFaceSet = | |
345 | new VrmlData_IndexedFaceSet (myScene, | |
346 | 0L, // no name | |
347 | Standard_True, // IsCCW | |
348 | Standard_False, // IsSolid | |
349 | Standard_False); // IsConvex | |
350 | const Handle(NCollection_IncAllocator)& anAlloc = myScene.Allocator(); | |
351 | const Standard_Boolean isReverse = (theFace.Orientation() == TopAbs_REVERSED); | |
352 | ||
353 | // Create the array of triangles | |
354 | const Standard_Integer ** arrPolygons = static_cast<const Standard_Integer **> | |
355 | (anAlloc->Allocate (nTriangles * sizeof(const Standard_Integer *))); | |
356 | aFaceSet->SetPolygons (nTriangles, arrPolygons); | |
357 | ||
358 | // Store the triangles | |
359 | for (i = 0; i < nTriangles; i++) { | |
360 | Standard_Integer * aPolygon = static_cast<Standard_Integer *> | |
361 | (anAlloc->Allocate (4*sizeof(Standard_Integer))); | |
362 | aPolygon[0] = 3; | |
363 | arrTriangles(i+1).Get (aPolygon[1],aPolygon[2],aPolygon[3]); | |
364 | aPolygon[1]--; | |
365 | if (isReverse) { | |
366 | const Standard_Integer aTmp = aPolygon[2]-1; | |
367 | aPolygon[2] = aPolygon[3]-1; | |
368 | aPolygon[3] = aTmp; | |
369 | } else { | |
370 | aPolygon[2]--; | |
371 | aPolygon[3]--; | |
372 | } | |
373 | arrPolygons[i] = aPolygon; | |
374 | } | |
375 | ||
376 | // Create the Coordinates node | |
377 | if (theCoord.IsNull() == Standard_False) | |
378 | aFaceSet->SetCoordinates (theCoord); | |
379 | else { | |
380 | gp_XYZ * arrNodes = static_cast <gp_XYZ *> | |
381 | (anAlloc->Allocate (nNodes * sizeof(gp_XYZ))); | |
382 | for (i = 0; i < nNodes; i++) | |
383 | arrNodes[i] = arrPolyNodes(i+1).XYZ() * myScale; | |
384 | ||
385 | const Handle(VrmlData_Coordinate) aCoordNode = | |
386 | new VrmlData_Coordinate (myScene, 0L, nNodes, arrNodes); | |
387 | myScene.AddNode (aCoordNode, Standard_False); | |
388 | aFaceSet->SetCoordinates (aCoordNode); | |
389 | } | |
390 | ||
391 | // Create the Normals node if theTri has normals | |
392 | if(theTri->HasNormals()) { | |
393 | gp_XYZ * arrVec = static_cast <gp_XYZ *> | |
394 | (anAlloc->Allocate (nNodes * sizeof(gp_XYZ))); | |
395 | const TShort_Array1OfShortReal& Norm = theTri->Normals(); | |
396 | Standard_Integer j; | |
397 | for (i = 0, j = 1; i < nNodes; i++, j += 3) { | |
398 | ||
399 | gp_XYZ aNormal(Norm(j), Norm(j+1), Norm(j+2)); | |
400 | arrVec[i] = aNormal; | |
401 | ||
402 | } | |
403 | const Handle(VrmlData_Normal) aNormalNode = | |
404 | new VrmlData_Normal (myScene, 0L, nNodes, arrVec); | |
405 | myScene.AddNode (aNormalNode, Standard_False); | |
406 | aFaceSet->SetNormals (aNormalNode); | |
407 | return aFaceSet; | |
408 | } | |
409 | ||
410 | Poly_Connect PC(theTri); | |
411 | // Create the Normals node (if UV- values are available) | |
412 | TopLoc_Location aLoc; | |
08cd2f6b | 413 | const Standard_Real aConf2 = Precision::SquareConfusion(); |
7fd59977 | 414 | const Handle(Geom_Surface) aSurface = BRep_Tool::Surface (theFace, aLoc); |
415 | if (theTri->HasUVNodes() && aSurface.IsNull() == Standard_False) { | |
416 | if (aSurface->IsCNu(1) && aSurface->IsCNv(1)) | |
417 | { | |
418 | Standard_Integer nbNormVal = nNodes * 3; | |
419 | Handle(TShort_HArray1OfShortReal) Normals = | |
420 | new TShort_HArray1OfShortReal(1, nbNormVal); | |
421 | ||
422 | const TColgp_Array1OfPnt2d& arrUV = theTri->UVNodes(); | |
423 | gp_XYZ * arrVec = static_cast <gp_XYZ *> | |
424 | (anAlloc->Allocate (nNodes * sizeof(gp_XYZ))); | |
425 | ||
426 | // Compute the normal vectors | |
427 | Standard_Real Tol = Sqrt(aConf2); | |
428 | for (i = 0; i < nNodes; i++) { | |
429 | const gp_Pnt2d& aUV = arrUV(i+1); | |
430 | ||
431 | gp_Dir aNormal; | |
432 | ||
433 | if (GeomLib::NormEstim(aSurface, aUV, Tol, aNormal) > 1) { | |
434 | //Try to estimate as middle normal of adjacent triangles | |
435 | Standard_Integer n[3]; | |
436 | ||
437 | gp_XYZ eqPlan(0., 0., 0.); | |
438 | for (PC.Initialize(i+1); PC.More(); PC.Next()) { | |
439 | arrTriangles(PC.Value()).Get(n[0], n[1], n[2]); | |
440 | gp_XYZ v1(arrPolyNodes(n[1]).Coord()-arrPolyNodes(n[0]).Coord()); | |
441 | gp_XYZ v2(arrPolyNodes(n[2]).Coord()-arrPolyNodes(n[1]).Coord()); | |
442 | gp_XYZ vv = v1^v2; | |
443 | ||
444 | Standard_Real mod = vv.Modulus(); | |
445 | if (mod < Tol) | |
446 | continue; | |
447 | ||
448 | eqPlan += vv/mod; | |
449 | } | |
450 | ||
451 | if (eqPlan.SquareModulus() > gp::Resolution()) | |
452 | aNormal = gp_Dir(eqPlan); | |
453 | } | |
454 | if (isReverse) | |
455 | aNormal.Reverse(); | |
456 | ||
457 | if (aNormal.X()*aNormal.X() < aConf2) | |
458 | aNormal.SetX(0.); | |
459 | if (aNormal.Y()*aNormal.Y() < aConf2) | |
460 | aNormal.SetY(0.); | |
461 | if (aNormal.Z()*aNormal.Z() < aConf2) | |
462 | aNormal.SetZ(0.); | |
463 | arrVec[i] = aNormal.XYZ(); | |
464 | ||
465 | Standard_Integer j = i * 3; | |
7f4c4756 | 466 | Normals->SetValue(j + 1, (Standard_ShortReal)aNormal.X()); |
467 | Normals->SetValue(j + 2, (Standard_ShortReal)aNormal.Y()); | |
468 | Normals->SetValue(j + 3, (Standard_ShortReal)aNormal.Z()); | |
7fd59977 | 469 | |
470 | } | |
471 | ||
472 | theTri->SetNormals(Normals); | |
473 | ||
474 | const Handle(VrmlData_Normal) aNormalNode = | |
475 | new VrmlData_Normal (myScene, 0L, nNodes, arrVec); | |
476 | myScene.AddNode (aNormalNode, Standard_False); | |
477 | aFaceSet->SetNormals (aNormalNode); | |
478 | } | |
479 | } | |
480 | ||
481 | return aFaceSet; | |
482 | } | |
483 | ||
484 | //======================================================================= | |
485 | //function : polToIndexedLineSet | |
486 | //purpose : single polygon3D => IndexedLineSet | |
487 | //======================================================================= | |
488 | ||
857ffd5e | 489 | Handle(VrmlData_Geometry) VrmlData_ShapeConvert::polToIndexedLineSet |
490 | (const Handle(Poly_Polygon3D)& thePol) | |
7fd59977 | 491 | { |
492 | Standard_Integer i; | |
493 | const Standard_Integer nNodes (thePol->NbNodes()); | |
494 | const TColgp_Array1OfPnt& arrPolyNodes = thePol->Nodes(); | |
495 | const Handle(NCollection_IncAllocator)& anAlloc = myScene.Allocator(); | |
496 | ||
497 | const Handle(VrmlData_IndexedLineSet) aLineSet = | |
498 | new VrmlData_IndexedLineSet (myScene, 0L); | |
499 | ||
500 | // Create the array of polygons (1 member) | |
501 | const Standard_Integer ** arrPolygons = static_cast<const Standard_Integer **> | |
502 | (anAlloc->Allocate (sizeof(const Standard_Integer *))); | |
503 | aLineSet->SetPolygons (1, arrPolygons); | |
504 | ||
505 | // Store the polygon | |
506 | Standard_Integer * aPolygon = static_cast<Standard_Integer *> | |
507 | (anAlloc->Allocate ((nNodes+1)*sizeof(Standard_Integer))); | |
508 | aPolygon[0] = nNodes; | |
509 | for (i = 1; i <= nNodes; i++) | |
510 | aPolygon[i] = i-1; | |
511 | arrPolygons[0] = aPolygon; | |
512 | ||
513 | // Create the Coordinates node | |
514 | gp_XYZ * arrNodes = static_cast <gp_XYZ *> | |
515 | (anAlloc->Allocate (nNodes * sizeof(gp_XYZ))); | |
516 | for (i = 0; i < nNodes; i++) | |
517 | arrNodes[i] = arrPolyNodes(i+1).XYZ() * myScale; | |
518 | ||
519 | const Handle(VrmlData_Coordinate) aCoordNode = | |
520 | new VrmlData_Coordinate (myScene, 0L, nNodes, arrNodes); | |
521 | myScene.AddNode (aCoordNode, Standard_False); | |
522 | aLineSet->SetCoordinates (aCoordNode); | |
523 | ||
524 | return aLineSet; | |
525 | } | |
526 | ||
527 | //======================================================================= | |
528 | //function : defaultMaterialFace | |
529 | //purpose : | |
530 | //======================================================================= | |
531 | ||
532 | Handle(VrmlData_Appearance) VrmlData_ShapeConvert::defaultMaterialFace () const | |
533 | { | |
534 | static char aNodeName[] = "__defaultMaterialFace"; | |
535 | Handle(VrmlData_Appearance) anAppearance = | |
536 | Handle(VrmlData_Appearance)::DownCast(myScene.FindNode(aNodeName)); | |
537 | if (anAppearance.IsNull()) { | |
538 | const Handle(VrmlData_Material) aMaterial = | |
539 | new VrmlData_Material (myScene, 0L, 1.0, 0.022, 0.); | |
540 | aMaterial->SetDiffuseColor (Quantity_Color(0.780392, 0.568627, 0.113725, | |
541 | Quantity_TOC_RGB)); | |
542 | aMaterial->SetEmissiveColor(Quantity_Color(0.329412, 0.223529, 0.027451, | |
543 | Quantity_TOC_RGB)); | |
544 | aMaterial->SetSpecularColor(Quantity_Color(0.992157, 0.941176, 0.807843, | |
545 | Quantity_TOC_RGB)); | |
546 | myScene.AddNode (aMaterial, Standard_False); | |
547 | anAppearance = new VrmlData_Appearance (myScene, aNodeName); | |
548 | anAppearance->SetMaterial (aMaterial); | |
549 | myScene.AddNode (anAppearance, Standard_False); | |
550 | } | |
551 | return anAppearance; | |
552 | } | |
553 | ||
554 | //======================================================================= | |
555 | //function : defaultMaterialEdge | |
556 | //purpose : | |
557 | //======================================================================= | |
558 | ||
559 | Handle(VrmlData_Appearance) VrmlData_ShapeConvert::defaultMaterialEdge () const | |
560 | { | |
561 | static char aNodeName[] = "__defaultMaterialEdge"; | |
562 | Handle(VrmlData_Appearance) anAppearance = | |
563 | Handle(VrmlData_Appearance)::DownCast(myScene.FindNode(aNodeName)); | |
564 | if (anAppearance.IsNull()) { | |
565 | const Handle(VrmlData_Material) aMaterial = | |
566 | new VrmlData_Material (myScene, 0L, 0.2, 0.2, 0.2); | |
567 | aMaterial->SetDiffuseColor (Quantity_Color(0.2, 0.7, 0.2, | |
568 | Quantity_TOC_RGB)); | |
569 | aMaterial->SetEmissiveColor(Quantity_Color(0.2, 0.7, 0.2, | |
570 | Quantity_TOC_RGB)); | |
571 | aMaterial->SetSpecularColor(Quantity_Color(0.2, 0.7, 0.2, | |
572 | Quantity_TOC_RGB)); | |
573 | myScene.AddNode (aMaterial, Standard_False); | |
574 | anAppearance = new VrmlData_Appearance (myScene, aNodeName); | |
575 | anAppearance->SetMaterial (aMaterial); | |
576 | myScene.AddNode (anAppearance, Standard_False); | |
577 | } | |
578 | return anAppearance; | |
579 | } |