| 1 | // Created on: 2006-11-04 |
| 2 | // Created by: Alexander GRIGORIEV |
| 3 | // Copyright (c) 2006-2012 OPEN CASCADE SAS |
| 4 | // |
| 5 | // The content of this file is subject to the Open CASCADE Technology Public |
| 6 | // License Version 6.5 (the "License"). You may not use the content of this file |
| 7 | // except in compliance with the License. Please obtain a copy of the License |
| 8 | // at http://www.opencascade.org and read it completely before using this file. |
| 9 | // |
| 10 | // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its |
| 11 | // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France. |
| 12 | // |
| 13 | // The Original Code and all software distributed under the License is |
| 14 | // distributed on an "AS IS" basis, without warranty of any kind, and the |
| 15 | // Initial Developer hereby disclaims all such warranties, including without |
| 16 | // limitation, any warranties of merchantability, fitness for a particular |
| 17 | // purpose or non-infringement. Please see the License for the specific terms |
| 18 | // and conditions governing the rights and limitations under the License. |
| 19 | |
| 20 | |
| 21 | |
| 22 | #include <VrmlData_IndexedFaceSet.hxx> |
| 23 | #include <VrmlData_InBuffer.hxx> |
| 24 | #include <VrmlData_UnknownNode.hxx> |
| 25 | #include <Poly_Triangulation.hxx> |
| 26 | #include <BRep_TFace.hxx> |
| 27 | #include <VrmlData_Coordinate.hxx> |
| 28 | #include <VrmlData_Color.hxx> |
| 29 | #include <VrmlData_Normal.hxx> |
| 30 | #include <VrmlData_TextureCoordinate.hxx> |
| 31 | #include <VrmlData_Scene.hxx> |
| 32 | #include <Precision.hxx> |
| 33 | #include <NCollection_Vector.hxx> |
| 34 | #include <NCollection_DataMap.hxx> |
| 35 | #include <Poly.hxx> |
| 36 | #include <TShort_HArray1OfShortReal.hxx> |
| 37 | |
| 38 | #ifdef WNT |
| 39 | #define _CRT_SECURE_NO_DEPRECATE |
| 40 | #pragma warning (disable:4996) |
| 41 | #endif |
| 42 | |
| 43 | IMPLEMENT_STANDARD_HANDLE (VrmlData_Faceted, VrmlData_Geometry) |
| 44 | IMPLEMENT_STANDARD_RTTIEXT (VrmlData_Faceted, VrmlData_Geometry) |
| 45 | IMPLEMENT_STANDARD_HANDLE (VrmlData_IndexedFaceSet, VrmlData_Faceted) |
| 46 | IMPLEMENT_STANDARD_RTTIEXT (VrmlData_IndexedFaceSet, VrmlData_Faceted) |
| 47 | |
| 48 | //======================================================================= |
| 49 | //function : readData |
| 50 | //purpose : |
| 51 | //======================================================================= |
| 52 | |
| 53 | VrmlData_ErrorStatus VrmlData_Faceted::readData (VrmlData_InBuffer& theBuffer) |
| 54 | { |
| 55 | VrmlData_ErrorStatus aStatus (VrmlData_EmptyData); |
| 56 | Standard_Boolean aBool; |
| 57 | if (VRMLDATA_LCOMPARE (theBuffer.LinePtr, "ccw")) { |
| 58 | if (OK(aStatus, ReadBoolean (theBuffer, aBool))) |
| 59 | myIsCCW = aBool; |
| 60 | } else if (VRMLDATA_LCOMPARE (theBuffer.LinePtr, "convex")) { |
| 61 | if (OK(aStatus, ReadBoolean (theBuffer, aBool))) |
| 62 | myIsConvex = aBool; |
| 63 | } else if (VRMLDATA_LCOMPARE (theBuffer.LinePtr, "solid")) { |
| 64 | if (OK(aStatus, ReadBoolean (theBuffer, aBool))) |
| 65 | myIsSolid = aBool; |
| 66 | } else if (VRMLDATA_LCOMPARE (theBuffer.LinePtr, "creaseAngle")) { |
| 67 | Standard_Real anAngle; |
| 68 | if (OK(aStatus, Scene().ReadReal (theBuffer, anAngle, |
| 69 | Standard_False, Standard_False))) { |
| 70 | if (anAngle < -Precision::Confusion()*0.001) |
| 71 | aStatus = VrmlData_IrrelevantNumber; |
| 72 | else |
| 73 | myCreaseAngle = anAngle; |
| 74 | } |
| 75 | } |
| 76 | return aStatus; |
| 77 | } |
| 78 | |
| 79 | //======================================================================= |
| 80 | //function : VrmlData_IndexedFaceSet::TShape |
| 81 | //purpose : |
| 82 | //======================================================================= |
| 83 | |
| 84 | const Handle(TopoDS_TShape)& VrmlData_IndexedFaceSet::TShape () |
| 85 | { |
| 86 | if (myNbPolygons == 0) |
| 87 | myTShape.Nullify(); |
| 88 | else if (myIsModified) { |
| 89 | // Create an empty topological Face |
| 90 | const gp_XYZ * arrNodes = myCoords->Values(); |
| 91 | Standard_Integer i, nTri(0); |
| 92 | |
| 93 | NCollection_DataMap <int, int> mapNodeId; |
| 94 | |
| 95 | // Count non-degenerated triangles |
| 96 | for (i = 0; i < (int)myNbPolygons; i++) { |
| 97 | const Standard_Integer * arrIndice; |
| 98 | if (Polygon(i, arrIndice) == 3) { |
| 99 | if (arrIndice[0] < 0) |
| 100 | continue; |
| 101 | const gp_XYZ aVec[2] = { |
| 102 | arrNodes[arrIndice[1]] - arrNodes[arrIndice[0]], |
| 103 | arrNodes[arrIndice[2]] - arrNodes[arrIndice[0]] |
| 104 | }; |
| 105 | if ((aVec[0] ^ aVec[1]).SquareModulus() > |
| 106 | Precision::SquareConfusion()) |
| 107 | ++nTri; |
| 108 | else { |
| 109 | const_cast<Standard_Integer&> (arrIndice[0]) = -1; |
| 110 | continue; |
| 111 | } |
| 112 | } |
| 113 | if (mapNodeId.IsBound (arrIndice[0]) == Standard_False) |
| 114 | mapNodeId.Bind (arrIndice[0], 0); |
| 115 | if (mapNodeId.IsBound (arrIndice[1]) == Standard_False) |
| 116 | mapNodeId.Bind (arrIndice[1], 0); |
| 117 | if (mapNodeId.IsBound (arrIndice[2]) == Standard_False) |
| 118 | mapNodeId.Bind (arrIndice[2], 0); |
| 119 | } |
| 120 | const Standard_Integer nbNodes (mapNodeId.Extent()); |
| 121 | if (!nbNodes) |
| 122 | { |
| 123 | myIsModified = Standard_False; |
| 124 | myTShape.Nullify(); |
| 125 | return myTShape; |
| 126 | } |
| 127 | |
| 128 | Handle(Poly_Triangulation) aTriangulation = |
| 129 | new Poly_Triangulation (nbNodes, nTri, Standard_False); |
| 130 | Handle(BRep_TFace) aFace = new BRep_TFace(); |
| 131 | aFace->Triangulation (aTriangulation); |
| 132 | myTShape = aFace; |
| 133 | |
| 134 | // Copy the triangulation vertices |
| 135 | TColgp_Array1OfPnt& aNodes = aTriangulation->ChangeNodes(); |
| 136 | NCollection_DataMap <int, int>::Iterator anIterN(mapNodeId); |
| 137 | for (i = 1; anIterN.More(); anIterN.Next()) { |
| 138 | const int aKey = anIterN.Key(); |
| 139 | const gp_XYZ& aNodePnt = arrNodes[aKey]; |
| 140 | aNodes(i) = gp_Pnt (aNodePnt); |
| 141 | anIterN.ChangeValue() = i++; |
| 142 | } |
| 143 | |
| 144 | // Copy the triangles. Only the triangle-type polygons are supported. |
| 145 | // In this loop we also get rid of any possible degenerated triangles. |
| 146 | Poly_Array1OfTriangle& aTriangles = aTriangulation->ChangeTriangles(); |
| 147 | nTri = 0; |
| 148 | for (i = 0; i < (int)myNbPolygons; i++) { |
| 149 | const Standard_Integer * arrIndice; |
| 150 | if (Polygon (i, arrIndice) == 3) |
| 151 | if (arrIndice[0] >= 0) // check to avoid previously skipped faces |
| 152 | aTriangles(++nTri).Set (mapNodeId(arrIndice[0]), |
| 153 | mapNodeId(arrIndice[1]), |
| 154 | mapNodeId(arrIndice[2])); |
| 155 | } |
| 156 | |
| 157 | // Normals should be defined; if they are not, compute them |
| 158 | if (myNormals.IsNull ()) { |
| 159 | //aTriangulation->ComputeNormals(); |
| 160 | Poly::ComputeNormals(aTriangulation); |
| 161 | } |
| 162 | else { |
| 163 | // Copy the normals. Currently only normals-per-vertex are supported. |
| 164 | Handle(TShort_HArray1OfShortReal) Normals = |
| 165 | new TShort_HArray1OfShortReal (1, 3*nbNodes); |
| 166 | if (myNormalPerVertex) { |
| 167 | if (myArrNormalInd == 0L) { |
| 168 | NCollection_DataMap <int, int>::Iterator anIterNN (mapNodeId); |
| 169 | for (; anIterNN.More (); anIterNN.Next ()) { |
| 170 | Standard_Integer anIdx = (anIterNN.Value() - 1) * 3 + 1; |
| 171 | const gp_XYZ& aNormal = myNormals->Normal (anIterNN.Key ()); |
| 172 | Normals->SetValue (anIdx + 0, Standard_ShortReal (aNormal.X ())); |
| 173 | Normals->SetValue (anIdx + 1, Standard_ShortReal (aNormal.Y ())); |
| 174 | Normals->SetValue (anIdx + 2, Standard_ShortReal (aNormal.Z ())); |
| 175 | } |
| 176 | } else { |
| 177 | nTri = 0; |
| 178 | for (i = 0; i < (int)myNbPolygons; i++) { |
| 179 | const Standard_Integer * arrIndice; |
| 180 | if (Polygon(i, arrIndice) == 3) |
| 181 | if (arrIndice[0] >= 0) // check to avoid previously skipped faces |
| 182 | if (IndiceNormals(i, arrIndice) == 3) { |
| 183 | Standard_Integer anInd = (++nTri - 1) * 3 + 1; |
| 184 | for (Standard_Integer j = 0; j < 3; j++) { |
| 185 | const gp_XYZ& aNormal = myNormals->Normal (arrIndice[j]); |
| 186 | Normals->SetValue (anInd + 0 + j*3, |
| 187 | Standard_ShortReal (aNormal.X ())); |
| 188 | Normals->SetValue (anInd + 1 + j*3, |
| 189 | Standard_ShortReal (aNormal.Y ())); |
| 190 | Normals->SetValue (anInd + 2 + j*3, |
| 191 | Standard_ShortReal (aNormal.Z ())); |
| 192 | } |
| 193 | } |
| 194 | } |
| 195 | } |
| 196 | } else { |
| 197 | //TODO .. |
| 198 | } |
| 199 | aTriangulation->SetNormals(Normals); |
| 200 | } |
| 201 | |
| 202 | myIsModified = Standard_False; |
| 203 | } |
| 204 | return myTShape; |
| 205 | } |
| 206 | |
| 207 | //======================================================================= |
| 208 | //function : VrmlData_IndexedFaceSet::Clone |
| 209 | //purpose : |
| 210 | //======================================================================= |
| 211 | |
| 212 | Handle(VrmlData_Node) VrmlData_IndexedFaceSet::Clone |
| 213 | (const Handle(VrmlData_Node)& theOther) const |
| 214 | { |
| 215 | Handle(VrmlData_IndexedFaceSet) aResult = |
| 216 | Handle(VrmlData_IndexedFaceSet)::DownCast (VrmlData_Node::Clone(theOther)); |
| 217 | if (aResult.IsNull()) |
| 218 | aResult = |
| 219 | new VrmlData_IndexedFaceSet(theOther.IsNull()? Scene(): theOther->Scene(), |
| 220 | Name()); |
| 221 | |
| 222 | if (&aResult->Scene() == &Scene()) { |
| 223 | aResult->SetCoordinates (myCoords); |
| 224 | aResult->SetNormals (myNormals); |
| 225 | aResult->SetColors (myColors); |
| 226 | aResult->SetPolygons (myNbPolygons, myArrPolygons); |
| 227 | aResult->SetNormalInd (myNbNormals, myArrNormalInd); |
| 228 | aResult->SetColorInd (myNbColors, myArrColorInd); |
| 229 | aResult->SetTextureCoordInd (myNbTextures, myArrTextureInd); |
| 230 | } else { |
| 231 | // Create a dummy node to pass the different Scene instance to methods Clone |
| 232 | const Handle(VrmlData_UnknownNode) aDummyNode = |
| 233 | new VrmlData_UnknownNode (aResult->Scene()); |
| 234 | if (myCoords.IsNull() == Standard_False) |
| 235 | aResult->SetCoordinates (Handle(VrmlData_Coordinate)::DownCast |
| 236 | (myCoords->Clone (aDummyNode))); |
| 237 | if (myNormals.IsNull() == Standard_False) |
| 238 | aResult->SetNormals (Handle(VrmlData_Normal)::DownCast |
| 239 | (myNormals->Clone (aDummyNode))); |
| 240 | if (myColors.IsNull() == Standard_False) |
| 241 | aResult->SetColors (Handle(VrmlData_Color)::DownCast |
| 242 | (myColors->Clone (aDummyNode))); |
| 243 | //TODO: Replace the following lines with the relevant copying |
| 244 | aResult->SetPolygons (myNbPolygons, myArrPolygons); |
| 245 | aResult->SetNormalInd (myNbNormals, myArrNormalInd); |
| 246 | aResult->SetColorInd (myNbColors, myArrColorInd); |
| 247 | aResult->SetTextureCoordInd (myNbTextures, myArrTextureInd); |
| 248 | } |
| 249 | aResult->SetNormalPerVertex (myNormalPerVertex); |
| 250 | aResult->SetColorPerVertex (myColorPerVertex); |
| 251 | return aResult; |
| 252 | } |
| 253 | |
| 254 | //======================================================================= |
| 255 | //function : VrmlData_IndexedFaceSet::Read |
| 256 | //purpose : |
| 257 | //======================================================================= |
| 258 | |
| 259 | VrmlData_ErrorStatus VrmlData_IndexedFaceSet::Read(VrmlData_InBuffer& theBuffer) |
| 260 | { |
| 261 | VrmlData_ErrorStatus aStatus; |
| 262 | const VrmlData_Scene& aScene = Scene(); |
| 263 | while (OK(aStatus, VrmlData_Scene::ReadLine(theBuffer))) |
| 264 | { |
| 265 | if (OK(aStatus, VrmlData_Faceted::readData (theBuffer))) |
| 266 | continue; |
| 267 | if (aStatus != VrmlData_EmptyData) |
| 268 | break; |
| 269 | else if (VRMLDATA_LCOMPARE (theBuffer.LinePtr, "colorPerVertex")) |
| 270 | aStatus = ReadBoolean (theBuffer, myColorPerVertex); |
| 271 | else if (VRMLDATA_LCOMPARE (theBuffer.LinePtr, "normalPerVertex")) |
| 272 | aStatus = ReadBoolean (theBuffer, myNormalPerVertex); |
| 273 | else if (VRMLDATA_LCOMPARE (theBuffer.LinePtr, "coordIndex")) |
| 274 | aStatus = aScene.ReadArrIndex (theBuffer, myArrPolygons, myNbPolygons); |
| 275 | else if (VRMLDATA_LCOMPARE (theBuffer.LinePtr, "colorIndex")) |
| 276 | aStatus = aScene.ReadArrIndex (theBuffer, myArrColorInd, myNbColors); |
| 277 | else if (VRMLDATA_LCOMPARE (theBuffer.LinePtr, "normalIndex")) |
| 278 | aStatus = aScene.ReadArrIndex (theBuffer, myArrNormalInd, myNbNormals); |
| 279 | else if (VRMLDATA_LCOMPARE (theBuffer.LinePtr, "texCoordIndex")) |
| 280 | aStatus = aScene.ReadArrIndex (theBuffer, myArrTextureInd, myNbTextures); |
| 281 | // These four checks should be the last one to avoid their interference |
| 282 | // with the other tokens (e.g., coordIndex) |
| 283 | else if (VRMLDATA_LCOMPARE (theBuffer.LinePtr, "texCoord")) |
| 284 | aStatus = ReadNode (theBuffer, myTxCoords, |
| 285 | STANDARD_TYPE(VrmlData_TextureCoordinate)); |
| 286 | else if (VRMLDATA_LCOMPARE (theBuffer.LinePtr, "color")) |
| 287 | aStatus = ReadNode (theBuffer, myColors, |
| 288 | STANDARD_TYPE(VrmlData_Color)); |
| 289 | else if (VRMLDATA_LCOMPARE (theBuffer.LinePtr, "coord")) |
| 290 | aStatus = ReadNode (theBuffer, myCoords, |
| 291 | STANDARD_TYPE(VrmlData_Coordinate)); |
| 292 | else if (VRMLDATA_LCOMPARE (theBuffer.LinePtr, "normal")) |
| 293 | aStatus = ReadNode (theBuffer, myNormals, |
| 294 | STANDARD_TYPE(VrmlData_Normal)); |
| 295 | if (!OK(aStatus)) |
| 296 | break; |
| 297 | } |
| 298 | // Read the terminating (closing) brace |
| 299 | if (OK(aStatus) || aStatus == VrmlData_EmptyData) |
| 300 | if (OK(aStatus, readBrace (theBuffer))) { |
| 301 | // Post-processing |
| 302 | ; |
| 303 | } |
| 304 | return aStatus; |
| 305 | } |
| 306 | |
| 307 | // //======================================================================= |
| 308 | // //function : dummyReadBrackets |
| 309 | // //purpose : static (local) function |
| 310 | // //======================================================================= |
| 311 | |
| 312 | // VrmlData_ErrorStatus dummyReadBrackets (VrmlData_InBuffer& theBuffer) |
| 313 | // { |
| 314 | // VrmlData_ErrorStatus aStatus; |
| 315 | // Standard_Integer aLevelCounter (0); |
| 316 | // // This loop searches for any opening bracket. |
| 317 | // // Such bracket increments the level counter. A closing bracket decrements |
| 318 | // // the counter. The loop terminates when the counter becomes zero. |
| 319 | // while ((aStatus = VrmlData_Scene::ReadLine(theBuffer)) == VrmlData_StatusOK) |
| 320 | // { |
| 321 | // int aChar; |
| 322 | // while ((aChar = theBuffer.LinePtr[0]) != '\0') { |
| 323 | // theBuffer.LinePtr++; |
| 324 | // if (aChar == '[') { |
| 325 | // aLevelCounter++; |
| 326 | // break; |
| 327 | // } else if (aChar == ']') { |
| 328 | // aLevelCounter--; |
| 329 | // break; |
| 330 | // } |
| 331 | // } |
| 332 | // if (aLevelCounter <= 0) |
| 333 | // break; |
| 334 | // } |
| 335 | // return aStatus; |
| 336 | // } |
| 337 | |
| 338 | //======================================================================= |
| 339 | //function : IsDefault |
| 340 | //purpose : |
| 341 | //======================================================================= |
| 342 | |
| 343 | Standard_Boolean VrmlData_IndexedFaceSet::IsDefault () const |
| 344 | { |
| 345 | Standard_Boolean aResult (Standard_True); |
| 346 | if (myNbPolygons) |
| 347 | aResult = Standard_False; |
| 348 | else if (myCoords.IsNull() == Standard_False) |
| 349 | aResult = myCoords->IsDefault(); |
| 350 | return aResult; |
| 351 | } |
| 352 | |
| 353 | //======================================================================= |
| 354 | //function : Write |
| 355 | //purpose : |
| 356 | //======================================================================= |
| 357 | |
| 358 | VrmlData_ErrorStatus VrmlData_IndexedFaceSet::Write |
| 359 | (const char * thePrefix) const |
| 360 | { |
| 361 | static char header[] = "IndexedFaceSet {"; |
| 362 | const VrmlData_Scene& aScene = Scene(); |
| 363 | VrmlData_ErrorStatus aStatus; |
| 364 | if (OK (aStatus, aScene.WriteLine (thePrefix, header, GlobalIndent()))) { |
| 365 | |
| 366 | // Write the attributes of interface "VrmlData_Faceted" |
| 367 | if (IsCCW() == Standard_False) |
| 368 | aStatus = aScene.WriteLine ("ccw FALSE"); |
| 369 | if (OK(aStatus) && IsSolid() == Standard_False) |
| 370 | aStatus = aScene.WriteLine ("solid FALSE"); |
| 371 | if (OK(aStatus) && IsConvex() == Standard_False) |
| 372 | aStatus = aScene.WriteLine ("convex FALSE"); |
| 373 | if (OK(aStatus) && CreaseAngle() > Precision::Confusion()) { |
| 374 | char buf[64]; |
| 375 | Sprintf (buf, "%.9g", CreaseAngle()); |
| 376 | aStatus = aScene.WriteLine ("creaseAngle", buf); |
| 377 | } |
| 378 | |
| 379 | if (OK(aStatus) && myCoords.IsNull() == Standard_False) |
| 380 | aStatus = aScene.WriteNode ("coord", myCoords); |
| 381 | if (OK(aStatus)) |
| 382 | aStatus = aScene.WriteArrIndex ("coordIndex", myArrPolygons,myNbPolygons); |
| 383 | |
| 384 | if (OK(aStatus) && myNormalPerVertex == Standard_False) |
| 385 | aStatus = aScene.WriteLine ("normalPerVertex FALSE"); |
| 386 | if (OK(aStatus) && myNormals.IsNull() == Standard_False) |
| 387 | aStatus = aScene.WriteNode ("normal", myNormals); |
| 388 | if (OK(aStatus)) |
| 389 | aStatus = aScene.WriteArrIndex ("normalIndex",myArrNormalInd,myNbNormals); |
| 390 | |
| 391 | if (OK(aStatus) && myColorPerVertex == Standard_False) |
| 392 | aStatus = aScene.WriteLine ("colorPerVertex FALSE"); |
| 393 | if (OK(aStatus) && myColors.IsNull() == Standard_False) |
| 394 | aStatus = aScene.WriteNode ("color", myColors); |
| 395 | if (OK(aStatus)) |
| 396 | aStatus = aScene.WriteArrIndex ("colorIndex", myArrColorInd, myNbColors); |
| 397 | |
| 398 | if (OK(aStatus) && myTxCoords.IsNull() == Standard_False) |
| 399 | aStatus = aScene.WriteNode ("texCoord", myTxCoords); |
| 400 | if (OK(aStatus)) |
| 401 | aStatus = aScene.WriteArrIndex ("texCoordIndex", myArrTextureInd, |
| 402 | myNbTextures); |
| 403 | |
| 404 | aStatus = WriteClosing(); |
| 405 | } |
| 406 | return aStatus; |
| 407 | } |
| 408 | |
| 409 | //======================================================================= |
| 410 | //function : GetColor |
| 411 | //purpose : |
| 412 | //======================================================================= |
| 413 | |
| 414 | Quantity_Color VrmlData_IndexedFaceSet::GetColor |
| 415 | (const Standard_Integer /*iFace*/, |
| 416 | const Standard_Integer /*iVertex*/) |
| 417 | { |
| 418 | //TODO |
| 419 | return Quantity_NOC_BLACK; |
| 420 | } |
| 421 | |