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b311480e | 1 | // Created on: 2006-11-04 |
2 | // Created by: Alexander GRIGORIEV | |
973c2be1 | 3 | // Copyright (c) 2006-2014 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_IndexedFaceSet.hxx> | |
17 | #include <VrmlData_InBuffer.hxx> | |
18 | #include <VrmlData_UnknownNode.hxx> | |
19 | #include <Poly_Triangulation.hxx> | |
20 | #include <BRep_TFace.hxx> | |
21 | #include <VrmlData_Coordinate.hxx> | |
22 | #include <VrmlData_Color.hxx> | |
23 | #include <VrmlData_Normal.hxx> | |
24 | #include <VrmlData_TextureCoordinate.hxx> | |
25 | #include <VrmlData_Scene.hxx> | |
26 | #include <Precision.hxx> | |
27 | #include <NCollection_Vector.hxx> | |
28 | #include <NCollection_DataMap.hxx> | |
29 | #include <Poly.hxx> | |
30 | #include <TShort_HArray1OfShortReal.hxx> | |
31 | ||
57c28b61 | 32 | #ifdef _MSC_VER |
7fd59977 | 33 | #define _CRT_SECURE_NO_DEPRECATE |
34 | #pragma warning (disable:4996) | |
35 | #endif | |
36 | ||
ec357c5c | 37 | |
38 | ||
7fd59977 | 39 | |
40 | //======================================================================= | |
41 | //function : readData | |
42 | //purpose : | |
43 | //======================================================================= | |
44 | ||
45 | VrmlData_ErrorStatus VrmlData_Faceted::readData (VrmlData_InBuffer& theBuffer) | |
46 | { | |
47 | VrmlData_ErrorStatus aStatus (VrmlData_EmptyData); | |
48 | Standard_Boolean aBool; | |
49 | if (VRMLDATA_LCOMPARE (theBuffer.LinePtr, "ccw")) { | |
50 | if (OK(aStatus, ReadBoolean (theBuffer, aBool))) | |
51 | myIsCCW = aBool; | |
52 | } else if (VRMLDATA_LCOMPARE (theBuffer.LinePtr, "convex")) { | |
53 | if (OK(aStatus, ReadBoolean (theBuffer, aBool))) | |
54 | myIsConvex = aBool; | |
55 | } else if (VRMLDATA_LCOMPARE (theBuffer.LinePtr, "solid")) { | |
56 | if (OK(aStatus, ReadBoolean (theBuffer, aBool))) | |
57 | myIsSolid = aBool; | |
58 | } else if (VRMLDATA_LCOMPARE (theBuffer.LinePtr, "creaseAngle")) { | |
59 | Standard_Real anAngle; | |
60 | if (OK(aStatus, Scene().ReadReal (theBuffer, anAngle, | |
eafb234b | 61 | Standard_False, Standard_False))) { |
7fd59977 | 62 | if (anAngle < -Precision::Confusion()*0.001) |
63 | aStatus = VrmlData_IrrelevantNumber; | |
64 | else | |
65 | myCreaseAngle = anAngle; | |
eafb234b | 66 | } |
7fd59977 | 67 | } |
68 | return aStatus; | |
69 | } | |
70 | ||
71 | //======================================================================= | |
72 | //function : VrmlData_IndexedFaceSet::TShape | |
73 | //purpose : | |
74 | //======================================================================= | |
75 | ||
76 | const Handle(TopoDS_TShape)& VrmlData_IndexedFaceSet::TShape () | |
77 | { | |
78 | if (myNbPolygons == 0) | |
79 | myTShape.Nullify(); | |
80 | else if (myIsModified) { | |
81 | // Create an empty topological Face | |
82 | const gp_XYZ * arrNodes = myCoords->Values(); | |
83 | Standard_Integer i, nTri(0); | |
84 | ||
85 | NCollection_DataMap <int, int> mapNodeId; | |
86 | ||
87 | // Count non-degenerated triangles | |
bd0b3e60 | 88 | const int nNodes = (int)myCoords->Length(); |
7fd59977 | 89 | for (i = 0; i < (int)myNbPolygons; i++) { |
90 | const Standard_Integer * arrIndice; | |
91 | if (Polygon(i, arrIndice) == 3) { | |
14b04bd2 | 92 | //Check indices for out of bound |
93 | if (arrIndice[0] < 0 || | |
94 | arrIndice[0] >= nNodes || | |
95 | arrIndice[1] >= nNodes || | |
96 | arrIndice[2] >= nNodes) | |
97 | { | |
98 | continue; | |
99 | } | |
7fd59977 | 100 | const gp_XYZ aVec[2] = { |
101 | arrNodes[arrIndice[1]] - arrNodes[arrIndice[0]], | |
102 | arrNodes[arrIndice[2]] - arrNodes[arrIndice[0]] | |
103 | }; | |
104 | if ((aVec[0] ^ aVec[1]).SquareModulus() > | |
08cd2f6b | 105 | Precision::SquareConfusion()) |
7fd59977 | 106 | ++nTri; |
107 | else { | |
108 | const_cast<Standard_Integer&> (arrIndice[0]) = -1; | |
109 | continue; | |
110 | } | |
111 | } | |
112 | if (mapNodeId.IsBound (arrIndice[0]) == Standard_False) | |
113 | mapNodeId.Bind (arrIndice[0], 0); | |
114 | if (mapNodeId.IsBound (arrIndice[1]) == Standard_False) | |
115 | mapNodeId.Bind (arrIndice[1], 0); | |
116 | if (mapNodeId.IsBound (arrIndice[2]) == Standard_False) | |
117 | mapNodeId.Bind (arrIndice[2], 0); | |
118 | } | |
119 | const Standard_Integer nbNodes (mapNodeId.Extent()); | |
bd754989 V |
120 | if (!nbNodes) |
121 | { | |
122 | myIsModified = Standard_False; | |
123 | myTShape.Nullify(); | |
124 | return myTShape; | |
125 | } | |
126 | ||
7fd59977 | 127 | Handle(Poly_Triangulation) aTriangulation = |
bd754989 | 128 | new Poly_Triangulation (nbNodes, nTri, Standard_False); |
7fd59977 | 129 | Handle(BRep_TFace) aFace = new BRep_TFace(); |
130 | aFace->Triangulation (aTriangulation); | |
131 | myTShape = aFace; | |
132 | ||
bd754989 | 133 | // Copy the triangulation vertices |
7fd59977 | 134 | TColgp_Array1OfPnt& aNodes = aTriangulation->ChangeNodes(); |
bd754989 V |
135 | NCollection_DataMap <int, int>::Iterator anIterN(mapNodeId); |
136 | for (i = 1; anIterN.More(); anIterN.Next()) { | |
137 | const int aKey = anIterN.Key(); | |
138 | const gp_XYZ& aNodePnt = arrNodes[aKey]; | |
139 | aNodes(i) = gp_Pnt (aNodePnt); | |
140 | anIterN.ChangeValue() = i++; | |
141 | } | |
142 | ||
143 | // Copy the triangles. Only the triangle-type polygons are supported. | |
144 | // In this loop we also get rid of any possible degenerated triangles. | |
7fd59977 | 145 | Poly_Array1OfTriangle& aTriangles = aTriangulation->ChangeTriangles(); |
7fd59977 | 146 | nTri = 0; |
bd754989 V |
147 | for (i = 0; i < (int)myNbPolygons; i++) { |
148 | const Standard_Integer * arrIndice; | |
149 | if (Polygon (i, arrIndice) == 3) | |
14b04bd2 | 150 | if (arrIndice[0] >= 0 && |
151 | arrIndice[0] < nNodes && | |
152 | arrIndice[1] < nNodes && | |
153 | arrIndice[2] < nNodes) // check to avoid previously skipped faces | |
bd754989 V |
154 | aTriangles(++nTri).Set (mapNodeId(arrIndice[0]), |
155 | mapNodeId(arrIndice[1]), | |
156 | mapNodeId(arrIndice[2])); | |
157 | } | |
7fd59977 | 158 | |
bd754989 V |
159 | // Normals should be defined; if they are not, compute them |
160 | if (myNormals.IsNull ()) { | |
161 | //aTriangulation->ComputeNormals(); | |
162 | Poly::ComputeNormals(aTriangulation); | |
7fd59977 | 163 | } |
164 | else { | |
bd754989 V |
165 | // Copy the normals. Currently only normals-per-vertex are supported. |
166 | Handle(TShort_HArray1OfShortReal) Normals = | |
167 | new TShort_HArray1OfShortReal (1, 3*nbNodes); | |
168 | if (myNormalPerVertex) { | |
169 | if (myArrNormalInd == 0L) { | |
170 | NCollection_DataMap <int, int>::Iterator anIterNN (mapNodeId); | |
171 | for (; anIterNN.More (); anIterNN.Next ()) { | |
172 | Standard_Integer anIdx = (anIterNN.Value() - 1) * 3 + 1; | |
173 | const gp_XYZ& aNormal = myNormals->Normal (anIterNN.Key ()); | |
174 | Normals->SetValue (anIdx + 0, Standard_ShortReal (aNormal.X ())); | |
175 | Normals->SetValue (anIdx + 1, Standard_ShortReal (aNormal.Y ())); | |
176 | Normals->SetValue (anIdx + 2, Standard_ShortReal (aNormal.Z ())); | |
177 | } | |
cccf81ea | 178 | } |
179 | else | |
180 | { | |
181 | for (i = 0; i < (int)myNbPolygons; i++) | |
182 | { | |
51740958 | 183 | const Standard_Integer * anArrNodes; |
184 | if (Polygon(i, anArrNodes) == 3 && | |
185 | anArrNodes[0] >= 0 && | |
186 | anArrNodes[0] < nNodes && | |
187 | anArrNodes[1] < nNodes && | |
188 | anArrNodes[2] < nNodes) // check to avoid previously skipped faces | |
cccf81ea | 189 | { |
190 | const Standard_Integer * arrIndice; | |
191 | if (IndiceNormals(i, arrIndice) == 3) { | |
192 | for (Standard_Integer j = 0; j < 3; j++) { | |
193 | const gp_XYZ& aNormal = myNormals->Normal (arrIndice[j]); | |
51740958 | 194 | Standard_Integer anInd = (mapNodeId(anArrNodes[j]) - 1) * 3 + 1; |
cccf81ea | 195 | Normals->SetValue (anInd + 0, Standard_ShortReal (aNormal.X())); |
196 | Normals->SetValue (anInd + 1, Standard_ShortReal (aNormal.Y())); | |
197 | Normals->SetValue (anInd + 2, Standard_ShortReal (aNormal.Z())); | |
bd754989 | 198 | } |
cccf81ea | 199 | } |
200 | } | |
7fd59977 | 201 | } |
bd754989 V |
202 | } |
203 | } else { | |
204 | //TODO .. | |
7fd59977 | 205 | } |
bd754989 | 206 | aTriangulation->SetNormals(Normals); |
7fd59977 | 207 | } |
bd754989 V |
208 | |
209 | myIsModified = Standard_False; | |
7fd59977 | 210 | } |
211 | return myTShape; | |
212 | } | |
213 | ||
214 | //======================================================================= | |
215 | //function : VrmlData_IndexedFaceSet::Clone | |
216 | //purpose : | |
217 | //======================================================================= | |
218 | ||
219 | Handle(VrmlData_Node) VrmlData_IndexedFaceSet::Clone | |
220 | (const Handle(VrmlData_Node)& theOther) const | |
221 | { | |
222 | Handle(VrmlData_IndexedFaceSet) aResult = | |
223 | Handle(VrmlData_IndexedFaceSet)::DownCast (VrmlData_Node::Clone(theOther)); | |
224 | if (aResult.IsNull()) | |
225 | aResult = | |
226 | new VrmlData_IndexedFaceSet(theOther.IsNull()? Scene(): theOther->Scene(), | |
227 | Name()); | |
228 | ||
229 | if (&aResult->Scene() == &Scene()) { | |
230 | aResult->SetCoordinates (myCoords); | |
231 | aResult->SetNormals (myNormals); | |
232 | aResult->SetColors (myColors); | |
233 | aResult->SetPolygons (myNbPolygons, myArrPolygons); | |
234 | aResult->SetNormalInd (myNbNormals, myArrNormalInd); | |
235 | aResult->SetColorInd (myNbColors, myArrColorInd); | |
236 | aResult->SetTextureCoordInd (myNbTextures, myArrTextureInd); | |
237 | } else { | |
238 | // Create a dummy node to pass the different Scene instance to methods Clone | |
239 | const Handle(VrmlData_UnknownNode) aDummyNode = | |
240 | new VrmlData_UnknownNode (aResult->Scene()); | |
241 | if (myCoords.IsNull() == Standard_False) | |
242 | aResult->SetCoordinates (Handle(VrmlData_Coordinate)::DownCast | |
243 | (myCoords->Clone (aDummyNode))); | |
244 | if (myNormals.IsNull() == Standard_False) | |
245 | aResult->SetNormals (Handle(VrmlData_Normal)::DownCast | |
246 | (myNormals->Clone (aDummyNode))); | |
247 | if (myColors.IsNull() == Standard_False) | |
248 | aResult->SetColors (Handle(VrmlData_Color)::DownCast | |
249 | (myColors->Clone (aDummyNode))); | |
250 | //TODO: Replace the following lines with the relevant copying | |
251 | aResult->SetPolygons (myNbPolygons, myArrPolygons); | |
252 | aResult->SetNormalInd (myNbNormals, myArrNormalInd); | |
253 | aResult->SetColorInd (myNbColors, myArrColorInd); | |
254 | aResult->SetTextureCoordInd (myNbTextures, myArrTextureInd); | |
255 | } | |
256 | aResult->SetNormalPerVertex (myNormalPerVertex); | |
257 | aResult->SetColorPerVertex (myColorPerVertex); | |
258 | return aResult; | |
259 | } | |
260 | ||
261 | //======================================================================= | |
262 | //function : VrmlData_IndexedFaceSet::Read | |
263 | //purpose : | |
264 | //======================================================================= | |
265 | ||
266 | VrmlData_ErrorStatus VrmlData_IndexedFaceSet::Read(VrmlData_InBuffer& theBuffer) | |
267 | { | |
268 | VrmlData_ErrorStatus aStatus; | |
269 | const VrmlData_Scene& aScene = Scene(); | |
270 | while (OK(aStatus, VrmlData_Scene::ReadLine(theBuffer))) | |
271 | { | |
272 | if (OK(aStatus, VrmlData_Faceted::readData (theBuffer))) | |
273 | continue; | |
274 | if (aStatus != VrmlData_EmptyData) | |
275 | break; | |
276 | else if (VRMLDATA_LCOMPARE (theBuffer.LinePtr, "colorPerVertex")) | |
277 | aStatus = ReadBoolean (theBuffer, myColorPerVertex); | |
278 | else if (VRMLDATA_LCOMPARE (theBuffer.LinePtr, "normalPerVertex")) | |
279 | aStatus = ReadBoolean (theBuffer, myNormalPerVertex); | |
280 | else if (VRMLDATA_LCOMPARE (theBuffer.LinePtr, "coordIndex")) | |
281 | aStatus = aScene.ReadArrIndex (theBuffer, myArrPolygons, myNbPolygons); | |
282 | else if (VRMLDATA_LCOMPARE (theBuffer.LinePtr, "colorIndex")) | |
283 | aStatus = aScene.ReadArrIndex (theBuffer, myArrColorInd, myNbColors); | |
284 | else if (VRMLDATA_LCOMPARE (theBuffer.LinePtr, "normalIndex")) | |
285 | aStatus = aScene.ReadArrIndex (theBuffer, myArrNormalInd, myNbNormals); | |
286 | else if (VRMLDATA_LCOMPARE (theBuffer.LinePtr, "texCoordIndex")) | |
287 | aStatus = aScene.ReadArrIndex (theBuffer, myArrTextureInd, myNbTextures); | |
288 | // These four checks should be the last one to avoid their interference | |
289 | // with the other tokens (e.g., coordIndex) | |
290 | else if (VRMLDATA_LCOMPARE (theBuffer.LinePtr, "texCoord")) | |
291 | aStatus = ReadNode (theBuffer, myTxCoords, | |
292 | STANDARD_TYPE(VrmlData_TextureCoordinate)); | |
293 | else if (VRMLDATA_LCOMPARE (theBuffer.LinePtr, "color")) | |
294 | aStatus = ReadNode (theBuffer, myColors, | |
295 | STANDARD_TYPE(VrmlData_Color)); | |
296 | else if (VRMLDATA_LCOMPARE (theBuffer.LinePtr, "coord")) | |
297 | aStatus = ReadNode (theBuffer, myCoords, | |
298 | STANDARD_TYPE(VrmlData_Coordinate)); | |
299 | else if (VRMLDATA_LCOMPARE (theBuffer.LinePtr, "normal")) | |
300 | aStatus = ReadNode (theBuffer, myNormals, | |
301 | STANDARD_TYPE(VrmlData_Normal)); | |
302 | if (!OK(aStatus)) | |
303 | break; | |
304 | } | |
305 | // Read the terminating (closing) brace | |
306 | if (OK(aStatus) || aStatus == VrmlData_EmptyData) | |
307 | if (OK(aStatus, readBrace (theBuffer))) { | |
308 | // Post-processing | |
309 | ; | |
310 | } | |
311 | return aStatus; | |
312 | } | |
313 | ||
314 | // //======================================================================= | |
315 | // //function : dummyReadBrackets | |
316 | // //purpose : static (local) function | |
317 | // //======================================================================= | |
318 | ||
319 | // VrmlData_ErrorStatus dummyReadBrackets (VrmlData_InBuffer& theBuffer) | |
320 | // { | |
321 | // VrmlData_ErrorStatus aStatus; | |
322 | // Standard_Integer aLevelCounter (0); | |
323 | // // This loop searches for any opening bracket. | |
324 | // // Such bracket increments the level counter. A closing bracket decrements | |
325 | // // the counter. The loop terminates when the counter becomes zero. | |
326 | // while ((aStatus = VrmlData_Scene::ReadLine(theBuffer)) == VrmlData_StatusOK) | |
327 | // { | |
328 | // int aChar; | |
329 | // while ((aChar = theBuffer.LinePtr[0]) != '\0') { | |
330 | // theBuffer.LinePtr++; | |
331 | // if (aChar == '[') { | |
332 | // aLevelCounter++; | |
333 | // break; | |
334 | // } else if (aChar == ']') { | |
335 | // aLevelCounter--; | |
336 | // break; | |
337 | // } | |
338 | // } | |
339 | // if (aLevelCounter <= 0) | |
340 | // break; | |
341 | // } | |
342 | // return aStatus; | |
343 | // } | |
344 | ||
345 | //======================================================================= | |
346 | //function : IsDefault | |
347 | //purpose : | |
348 | //======================================================================= | |
349 | ||
350 | Standard_Boolean VrmlData_IndexedFaceSet::IsDefault () const | |
351 | { | |
352 | Standard_Boolean aResult (Standard_True); | |
353 | if (myNbPolygons) | |
354 | aResult = Standard_False; | |
355 | else if (myCoords.IsNull() == Standard_False) | |
356 | aResult = myCoords->IsDefault(); | |
357 | return aResult; | |
358 | } | |
359 | ||
360 | //======================================================================= | |
361 | //function : Write | |
362 | //purpose : | |
363 | //======================================================================= | |
364 | ||
365 | VrmlData_ErrorStatus VrmlData_IndexedFaceSet::Write | |
366 | (const char * thePrefix) const | |
367 | { | |
368 | static char header[] = "IndexedFaceSet {"; | |
369 | const VrmlData_Scene& aScene = Scene(); | |
370 | VrmlData_ErrorStatus aStatus; | |
371 | if (OK (aStatus, aScene.WriteLine (thePrefix, header, GlobalIndent()))) { | |
372 | ||
373 | // Write the attributes of interface "VrmlData_Faceted" | |
374 | if (IsCCW() == Standard_False) | |
375 | aStatus = aScene.WriteLine ("ccw FALSE"); | |
376 | if (OK(aStatus) && IsSolid() == Standard_False) | |
377 | aStatus = aScene.WriteLine ("solid FALSE"); | |
378 | if (OK(aStatus) && IsConvex() == Standard_False) | |
379 | aStatus = aScene.WriteLine ("convex FALSE"); | |
380 | if (OK(aStatus) && CreaseAngle() > Precision::Confusion()) { | |
381 | char buf[64]; | |
91322f44 | 382 | Sprintf (buf, "%.9g", CreaseAngle()); |
7fd59977 | 383 | aStatus = aScene.WriteLine ("creaseAngle", buf); |
384 | } | |
385 | ||
386 | if (OK(aStatus) && myCoords.IsNull() == Standard_False) | |
387 | aStatus = aScene.WriteNode ("coord", myCoords); | |
388 | if (OK(aStatus)) | |
389 | aStatus = aScene.WriteArrIndex ("coordIndex", myArrPolygons,myNbPolygons); | |
390 | ||
391 | if (OK(aStatus) && myNormalPerVertex == Standard_False) | |
392 | aStatus = aScene.WriteLine ("normalPerVertex FALSE"); | |
393 | if (OK(aStatus) && myNormals.IsNull() == Standard_False) | |
394 | aStatus = aScene.WriteNode ("normal", myNormals); | |
395 | if (OK(aStatus)) | |
396 | aStatus = aScene.WriteArrIndex ("normalIndex",myArrNormalInd,myNbNormals); | |
397 | ||
398 | if (OK(aStatus) && myColorPerVertex == Standard_False) | |
399 | aStatus = aScene.WriteLine ("colorPerVertex FALSE"); | |
400 | if (OK(aStatus) && myColors.IsNull() == Standard_False) | |
401 | aStatus = aScene.WriteNode ("color", myColors); | |
402 | if (OK(aStatus)) | |
403 | aStatus = aScene.WriteArrIndex ("colorIndex", myArrColorInd, myNbColors); | |
404 | ||
405 | if (OK(aStatus) && myTxCoords.IsNull() == Standard_False) | |
406 | aStatus = aScene.WriteNode ("texCoord", myTxCoords); | |
407 | if (OK(aStatus)) | |
408 | aStatus = aScene.WriteArrIndex ("texCoordIndex", myArrTextureInd, | |
409 | myNbTextures); | |
410 | ||
411 | aStatus = WriteClosing(); | |
412 | } | |
413 | return aStatus; | |
414 | } | |
415 | ||
416 | //======================================================================= | |
417 | //function : GetColor | |
418 | //purpose : | |
419 | //======================================================================= | |
420 | ||
421 | Quantity_Color VrmlData_IndexedFaceSet::GetColor | |
422 | (const Standard_Integer /*iFace*/, | |
423 | const Standard_Integer /*iVertex*/) | |
424 | { | |
425 | //TODO | |
426 | return Quantity_NOC_BLACK; | |
427 | } | |
428 |