| 1 | // Created on: 1993-01-21 |
| 2 | // Created by: Remi LEQUETTE |
| 3 | // Copyright (c) 1993-1999 Matra Datavision |
| 4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
| 5 | // |
| 6 | // This file is part of Open CASCADE Technology software library. |
| 7 | // |
| 8 | // This library is free software; you can redistribute it and/or modify it under |
| 9 | // the terms of the GNU Lesser General Public License version 2.1 as published |
| 10 | // by the Free Software Foundation, with special exception defined in the file |
| 11 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
| 12 | // distribution for complete text of the license and disclaimer of any warranty. |
| 13 | // |
| 14 | // Alternatively, this file may be used under the terms of Open CASCADE |
| 15 | // commercial license or contractual agreement. |
| 16 | |
| 17 | |
| 18 | #include <Bnd_Box2d.hxx> |
| 19 | #include <BndLib_Add2dCurve.hxx> |
| 20 | #include <BRep_Builder.hxx> |
| 21 | #include <BRep_CurveRepresentation.hxx> |
| 22 | #include <BRep_GCurve.hxx> |
| 23 | #include <BRep_ListOfCurveRepresentation.hxx> |
| 24 | #include <BRep_TEdge.hxx> |
| 25 | #include <BRep_Tool.hxx> |
| 26 | #include <BRepTools.hxx> |
| 27 | #include <BRepTools_MapOfVertexPnt2d.hxx> |
| 28 | #include <BRepTools_ShapeSet.hxx> |
| 29 | #include <BRepAdaptor_Surface.hxx> |
| 30 | #include <ElCLib.hxx> |
| 31 | #include <Geom2d_Curve.hxx> |
| 32 | #include <Geom2dAdaptor_Curve.hxx> |
| 33 | #include <Geom_BSplineSurface.hxx> |
| 34 | #include <Geom_Curve.hxx> |
| 35 | #include <Geom_RectangularTrimmedSurface.hxx> |
| 36 | #include <Geom_Surface.hxx> |
| 37 | #include <gp_Lin2d.hxx> |
| 38 | #include <gp_Vec2d.hxx> |
| 39 | #include <Message_ProgressIndicator.hxx> |
| 40 | #include <OSD_OpenFile.hxx> |
| 41 | #include <Poly_PolygonOnTriangulation.hxx> |
| 42 | #include <Poly_Triangulation.hxx> |
| 43 | #include <Precision.hxx> |
| 44 | #include <Standard_ErrorHandler.hxx> |
| 45 | #include <Standard_Failure.hxx> |
| 46 | #include <Standard_Stream.hxx> |
| 47 | #include <TColGeom2d_SequenceOfCurve.hxx> |
| 48 | #include <TColgp_SequenceOfPnt2d.hxx> |
| 49 | #include <TColStd_Array1OfReal.hxx> |
| 50 | #include <TColStd_HArray1OfInteger.hxx> |
| 51 | #include <TColStd_MapOfTransient.hxx> |
| 52 | #include <TColStd_SequenceOfReal.hxx> |
| 53 | #include <TopExp.hxx> |
| 54 | #include <TopExp_Explorer.hxx> |
| 55 | #include <TopoDS.hxx> |
| 56 | #include <TopoDS_Compound.hxx> |
| 57 | #include <TopoDS_CompSolid.hxx> |
| 58 | #include <TopoDS_Edge.hxx> |
| 59 | #include <TopoDS_Face.hxx> |
| 60 | #include <TopoDS_Shape.hxx> |
| 61 | #include <TopoDS_Shell.hxx> |
| 62 | #include <TopoDS_Solid.hxx> |
| 63 | #include <TopoDS_Vertex.hxx> |
| 64 | #include <TopoDS_Wire.hxx> |
| 65 | #include <TopTools_SequenceOfShape.hxx> |
| 66 | #include <GeomLib_CheckCurveOnSurface.hxx> |
| 67 | #include <errno.h> |
| 68 | |
| 69 | |
| 70 | //======================================================================= |
| 71 | //function : UVBounds |
| 72 | //purpose : |
| 73 | //======================================================================= |
| 74 | void BRepTools::UVBounds(const TopoDS_Face& F, |
| 75 | Standard_Real& UMin, Standard_Real& UMax, |
| 76 | Standard_Real& VMin, Standard_Real& VMax) |
| 77 | { |
| 78 | Bnd_Box2d B; |
| 79 | AddUVBounds(F,B); |
| 80 | if (!B.IsVoid()) |
| 81 | { |
| 82 | B.Get(UMin,VMin,UMax,VMax); |
| 83 | } |
| 84 | else |
| 85 | { |
| 86 | UMin = UMax = VMin = VMax = 0.0; |
| 87 | } |
| 88 | } |
| 89 | |
| 90 | //======================================================================= |
| 91 | //function : UVBounds |
| 92 | //purpose : |
| 93 | //======================================================================= |
| 94 | |
| 95 | void BRepTools::UVBounds(const TopoDS_Face& F, |
| 96 | const TopoDS_Wire& W, |
| 97 | Standard_Real& UMin, Standard_Real& UMax, |
| 98 | Standard_Real& VMin, Standard_Real& VMax) |
| 99 | { |
| 100 | Bnd_Box2d B; |
| 101 | AddUVBounds(F,W,B); |
| 102 | if (!B.IsVoid()) |
| 103 | { |
| 104 | B.Get(UMin,VMin,UMax,VMax); |
| 105 | } |
| 106 | else |
| 107 | { |
| 108 | UMin = UMax = VMin = VMax = 0.0; |
| 109 | } |
| 110 | } |
| 111 | |
| 112 | |
| 113 | //======================================================================= |
| 114 | //function : UVBounds |
| 115 | //purpose : |
| 116 | //======================================================================= |
| 117 | |
| 118 | void BRepTools::UVBounds(const TopoDS_Face& F, |
| 119 | const TopoDS_Edge& E, |
| 120 | Standard_Real& UMin, Standard_Real& UMax, |
| 121 | Standard_Real& VMin, Standard_Real& VMax) |
| 122 | { |
| 123 | Bnd_Box2d B; |
| 124 | AddUVBounds(F,E,B); |
| 125 | if (!B.IsVoid()) |
| 126 | { |
| 127 | B.Get(UMin,VMin,UMax,VMax); |
| 128 | } |
| 129 | else |
| 130 | { |
| 131 | UMin = UMax = VMin = VMax = 0.0; |
| 132 | } |
| 133 | } |
| 134 | |
| 135 | //======================================================================= |
| 136 | //function : AddUVBounds |
| 137 | //purpose : |
| 138 | //======================================================================= |
| 139 | |
| 140 | void BRepTools::AddUVBounds(const TopoDS_Face& FF, Bnd_Box2d& B) |
| 141 | { |
| 142 | TopoDS_Face F = FF; |
| 143 | F.Orientation(TopAbs_FORWARD); |
| 144 | TopExp_Explorer ex(F,TopAbs_EDGE); |
| 145 | |
| 146 | // fill box for the given face |
| 147 | Bnd_Box2d aBox; |
| 148 | for (;ex.More();ex.Next()) { |
| 149 | BRepTools::AddUVBounds(F,TopoDS::Edge(ex.Current()),aBox); |
| 150 | } |
| 151 | |
| 152 | // if the box is empty (face without edges or without pcurves), |
| 153 | // get natural bounds |
| 154 | if (aBox.IsVoid()) { |
| 155 | Standard_Real UMin,UMax,VMin,VMax; |
| 156 | TopLoc_Location L; |
| 157 | const Handle(Geom_Surface)& aSurf = BRep_Tool::Surface(F, L); |
| 158 | if (aSurf.IsNull()) |
| 159 | { |
| 160 | return; |
| 161 | } |
| 162 | |
| 163 | aSurf->Bounds(UMin,UMax,VMin,VMax); |
| 164 | aBox.Update(UMin,VMin,UMax,VMax); |
| 165 | } |
| 166 | |
| 167 | // add face box to result |
| 168 | B.Add ( aBox ); |
| 169 | } |
| 170 | |
| 171 | |
| 172 | //======================================================================= |
| 173 | //function : AddUVBounds |
| 174 | //purpose : |
| 175 | //======================================================================= |
| 176 | void BRepTools::AddUVBounds(const TopoDS_Face& F, |
| 177 | const TopoDS_Wire& W, |
| 178 | Bnd_Box2d& B) |
| 179 | { |
| 180 | TopExp_Explorer ex; |
| 181 | for (ex.Init(W,TopAbs_EDGE);ex.More();ex.Next()) { |
| 182 | BRepTools::AddUVBounds(F,TopoDS::Edge(ex.Current()),B); |
| 183 | } |
| 184 | } |
| 185 | |
| 186 | |
| 187 | //======================================================================= |
| 188 | //function : AddUVBounds |
| 189 | //purpose : |
| 190 | //======================================================================= |
| 191 | void BRepTools::AddUVBounds(const TopoDS_Face& aF, |
| 192 | const TopoDS_Edge& aE, |
| 193 | Bnd_Box2d& aB) |
| 194 | { |
| 195 | Standard_Real aT1, aT2, aXmin = 0.0, aYmin = 0.0, aXmax = 0.0, aYmax = 0.0; |
| 196 | Standard_Real aUmin, aUmax, aVmin, aVmax; |
| 197 | Bnd_Box2d aBoxC, aBoxS; |
| 198 | TopLoc_Location aLoc; |
| 199 | // |
| 200 | const Handle(Geom2d_Curve) aC2D = BRep_Tool::CurveOnSurface(aE, aF, aT1, aT2); |
| 201 | if (aC2D.IsNull()) { |
| 202 | return; |
| 203 | } |
| 204 | // |
| 205 | BndLib_Add2dCurve::Add(aC2D, aT1, aT2, 0., aBoxC); |
| 206 | if (!aBoxC.IsVoid()) |
| 207 | { |
| 208 | aBoxC.Get(aXmin, aYmin, aXmax, aYmax); |
| 209 | } |
| 210 | // |
| 211 | Handle(Geom_Surface) aS = BRep_Tool::Surface(aF, aLoc); |
| 212 | aS->Bounds(aUmin, aUmax, aVmin, aVmax); |
| 213 | |
| 214 | if(aS->DynamicType() == STANDARD_TYPE(Geom_RectangularTrimmedSurface)) |
| 215 | { |
| 216 | const Handle(Geom_RectangularTrimmedSurface) aSt = |
| 217 | Handle(Geom_RectangularTrimmedSurface)::DownCast(aS); |
| 218 | aS = aSt->BasisSurface(); |
| 219 | } |
| 220 | |
| 221 | // |
| 222 | if(!aS->IsUPeriodic()) |
| 223 | { |
| 224 | Standard_Boolean isUPeriodic = Standard_False; |
| 225 | |
| 226 | // Additional verification for U-periodicity for B-spline surfaces |
| 227 | // 1. Verify that the surface is U-closed (if such flag is false). Verification uses 2 points |
| 228 | // 2. Verify periodicity of surface inside UV-bounds of the edge. Verification uses 3 or 6 points. |
| 229 | if (aS->DynamicType() == STANDARD_TYPE(Geom_BSplineSurface) && |
| 230 | (aXmin < aUmin || aXmax > aUmax)) |
| 231 | { |
| 232 | Standard_Real aTol2 = 100 * Precision::Confusion() * Precision::Confusion(); |
| 233 | isUPeriodic = Standard_True; |
| 234 | gp_Pnt P1, P2; |
| 235 | // 1. Verify that the surface is U-closed |
| 236 | if (!aS->IsUClosed()) |
| 237 | { |
| 238 | Standard_Real aVStep = aVmax - aVmin; |
| 239 | for (Standard_Real aV = aVmin; aV <= aVmax; aV += aVStep) |
| 240 | { |
| 241 | P1 = aS->Value(aUmin, aV); |
| 242 | P2 = aS->Value(aUmax, aV); |
| 243 | if (P1.SquareDistance(P2) > aTol2) |
| 244 | { |
| 245 | isUPeriodic = Standard_False; |
| 246 | break; |
| 247 | } |
| 248 | } |
| 249 | } |
| 250 | // 2. Verify periodicity of surface inside UV-bounds of the edge |
| 251 | if (isUPeriodic) // the flag still not changed |
| 252 | { |
| 253 | Standard_Real aV = (aVmin + aVmax) * 0.5; |
| 254 | Standard_Real aU[6]; // values of U lying out of surface boundaries |
| 255 | Standard_Real aUpp[6]; // corresponding U-values plus/minus period |
| 256 | Standard_Integer aNbPnt = 0; |
| 257 | if (aXmin < aUmin) |
| 258 | { |
| 259 | aU[0] = aXmin; |
| 260 | aU[1] = (aXmin + aUmin) * 0.5; |
| 261 | aU[2] = aUmin; |
| 262 | aUpp[0] = aU[0] + aUmax - aUmin; |
| 263 | aUpp[1] = aU[1] + aUmax - aUmin; |
| 264 | aUpp[2] = aU[2] + aUmax - aUmin; |
| 265 | aNbPnt += 3; |
| 266 | } |
| 267 | if (aXmax > aUmax) |
| 268 | { |
| 269 | aU[aNbPnt] = aUmax; |
| 270 | aU[aNbPnt + 1] = (aXmax + aUmax) * 0.5; |
| 271 | aU[aNbPnt + 2] = aXmax; |
| 272 | aUpp[aNbPnt] = aU[aNbPnt] - aUmax + aUmin; |
| 273 | aUpp[aNbPnt + 1] = aU[aNbPnt + 1] - aUmax + aUmin; |
| 274 | aUpp[aNbPnt + 2] = aU[aNbPnt + 2] - aUmax + aUmin; |
| 275 | aNbPnt += 3; |
| 276 | } |
| 277 | for (Standard_Integer anInd = 0; anInd < aNbPnt; anInd++) |
| 278 | { |
| 279 | P1 = aS->Value(aU[anInd], aV); |
| 280 | P2 = aS->Value(aUpp[anInd], aV); |
| 281 | if (P1.SquareDistance(P2) > aTol2) |
| 282 | { |
| 283 | isUPeriodic = Standard_False; |
| 284 | break; |
| 285 | } |
| 286 | } |
| 287 | } |
| 288 | } |
| 289 | |
| 290 | if (!isUPeriodic) |
| 291 | { |
| 292 | if((aXmin<aUmin) && (aUmin < aXmax)) |
| 293 | { |
| 294 | aXmin=aUmin; |
| 295 | } |
| 296 | if((aXmin < aUmax) && (aUmax < aXmax)) |
| 297 | { |
| 298 | aXmax=aUmax; |
| 299 | } |
| 300 | } |
| 301 | } |
| 302 | |
| 303 | if(!aS->IsVPeriodic()) |
| 304 | { |
| 305 | Standard_Boolean isVPeriodic = Standard_False; |
| 306 | |
| 307 | // Additional verification for V-periodicity for B-spline surfaces |
| 308 | // 1. Verify that the surface is V-closed (if such flag is false). Verification uses 2 points |
| 309 | // 2. Verify periodicity of surface inside UV-bounds of the edge. Verification uses 3 or 6 points. |
| 310 | if (aS->DynamicType() == STANDARD_TYPE(Geom_BSplineSurface) && |
| 311 | (aYmin < aVmin || aYmax > aVmax)) |
| 312 | { |
| 313 | Standard_Real aTol2 = 100 * Precision::Confusion() * Precision::Confusion(); |
| 314 | isVPeriodic = Standard_True; |
| 315 | gp_Pnt P1, P2; |
| 316 | // 1. Verify that the surface is V-closed |
| 317 | if (!aS->IsVClosed()) |
| 318 | { |
| 319 | Standard_Real aUStep = aUmax - aUmin; |
| 320 | for (Standard_Real aU = aUmin; aU <= aUmax; aU += aUStep) |
| 321 | { |
| 322 | P1 = aS->Value(aU, aVmin); |
| 323 | P2 = aS->Value(aU, aVmax); |
| 324 | if (P1.SquareDistance(P2) > aTol2) |
| 325 | { |
| 326 | isVPeriodic = Standard_False; |
| 327 | break; |
| 328 | } |
| 329 | } |
| 330 | } |
| 331 | // 2. Verify periodicity of surface inside UV-bounds of the edge |
| 332 | if (isVPeriodic) // the flag still not changed |
| 333 | { |
| 334 | Standard_Real aU = (aUmin + aUmax) * 0.5; |
| 335 | Standard_Real aV[6]; // values of V lying out of surface boundaries |
| 336 | Standard_Real aVpp[6]; // corresponding V-values plus/minus period |
| 337 | Standard_Integer aNbPnt = 0; |
| 338 | if (aYmin < aVmin) |
| 339 | { |
| 340 | aV[0] = aYmin; |
| 341 | aV[1] = (aYmin + aVmin) * 0.5; |
| 342 | aV[2] = aVmin; |
| 343 | aVpp[0] = aV[0] + aVmax - aVmin; |
| 344 | aVpp[1] = aV[1] + aVmax - aVmin; |
| 345 | aVpp[2] = aV[2] + aVmax - aVmin; |
| 346 | aNbPnt += 3; |
| 347 | } |
| 348 | if (aYmax > aVmax) |
| 349 | { |
| 350 | aV[aNbPnt] = aVmax; |
| 351 | aV[aNbPnt + 1] = (aYmax + aVmax) * 0.5; |
| 352 | aV[aNbPnt + 2] = aYmax; |
| 353 | aVpp[aNbPnt] = aV[aNbPnt] - aVmax + aVmin; |
| 354 | aVpp[aNbPnt + 1] = aV[aNbPnt + 1] - aVmax + aVmin; |
| 355 | aVpp[aNbPnt + 2] = aV[aNbPnt + 2] - aVmax + aVmin; |
| 356 | aNbPnt += 3; |
| 357 | } |
| 358 | for (Standard_Integer anInd = 0; anInd < aNbPnt; anInd++) |
| 359 | { |
| 360 | P1 = aS->Value(aU, aV[anInd]); |
| 361 | P2 = aS->Value(aU, aVpp[anInd]); |
| 362 | if (P1.SquareDistance(P2) > aTol2) |
| 363 | { |
| 364 | isVPeriodic = Standard_False; |
| 365 | break; |
| 366 | } |
| 367 | } |
| 368 | } |
| 369 | } |
| 370 | |
| 371 | if (!isVPeriodic) |
| 372 | { |
| 373 | if((aYmin<aVmin) && (aVmin < aYmax)) |
| 374 | { |
| 375 | aYmin=aVmin; |
| 376 | } |
| 377 | if((aYmin < aVmax) && (aVmax < aYmax)) |
| 378 | { |
| 379 | aYmax=aVmax; |
| 380 | } |
| 381 | } |
| 382 | } |
| 383 | |
| 384 | aBoxS.Update(aXmin, aYmin, aXmax, aYmax); |
| 385 | |
| 386 | aB.Add(aBoxS); |
| 387 | } |
| 388 | |
| 389 | //======================================================================= |
| 390 | //function : Update |
| 391 | //purpose : |
| 392 | //======================================================================= |
| 393 | |
| 394 | void BRepTools::Update(const TopoDS_Vertex&) |
| 395 | { |
| 396 | } |
| 397 | |
| 398 | //======================================================================= |
| 399 | //function : Update |
| 400 | //purpose : |
| 401 | //======================================================================= |
| 402 | |
| 403 | void BRepTools::Update(const TopoDS_Edge&) |
| 404 | { |
| 405 | } |
| 406 | |
| 407 | //======================================================================= |
| 408 | //function : Update |
| 409 | //purpose : |
| 410 | //======================================================================= |
| 411 | |
| 412 | void BRepTools::Update(const TopoDS_Wire&) |
| 413 | { |
| 414 | } |
| 415 | |
| 416 | //======================================================================= |
| 417 | //function : Update |
| 418 | //purpose : |
| 419 | //======================================================================= |
| 420 | |
| 421 | void BRepTools::Update(const TopoDS_Face& F) |
| 422 | { |
| 423 | if (!F.Checked()) { |
| 424 | UpdateFaceUVPoints(F); |
| 425 | F.TShape()->Checked(Standard_True); |
| 426 | } |
| 427 | } |
| 428 | |
| 429 | //======================================================================= |
| 430 | //function : Update |
| 431 | //purpose : |
| 432 | //======================================================================= |
| 433 | |
| 434 | void BRepTools::Update(const TopoDS_Shell& S) |
| 435 | { |
| 436 | TopExp_Explorer ex(S,TopAbs_FACE); |
| 437 | while (ex.More()) { |
| 438 | Update(TopoDS::Face(ex.Current())); |
| 439 | ex.Next(); |
| 440 | } |
| 441 | } |
| 442 | |
| 443 | //======================================================================= |
| 444 | //function : Update |
| 445 | //purpose : |
| 446 | //======================================================================= |
| 447 | |
| 448 | void BRepTools::Update(const TopoDS_Solid& S) |
| 449 | { |
| 450 | TopExp_Explorer ex(S,TopAbs_FACE); |
| 451 | while (ex.More()) { |
| 452 | Update(TopoDS::Face(ex.Current())); |
| 453 | ex.Next(); |
| 454 | } |
| 455 | } |
| 456 | |
| 457 | //======================================================================= |
| 458 | //function : Update |
| 459 | //purpose : |
| 460 | //======================================================================= |
| 461 | |
| 462 | void BRepTools::Update(const TopoDS_CompSolid& CS) |
| 463 | { |
| 464 | TopExp_Explorer ex(CS,TopAbs_FACE); |
| 465 | while (ex.More()) { |
| 466 | Update(TopoDS::Face(ex.Current())); |
| 467 | ex.Next(); |
| 468 | } |
| 469 | } |
| 470 | |
| 471 | //======================================================================= |
| 472 | //function : Update |
| 473 | //purpose : |
| 474 | //======================================================================= |
| 475 | |
| 476 | void BRepTools::Update(const TopoDS_Compound& C) |
| 477 | { |
| 478 | TopExp_Explorer ex(C,TopAbs_FACE); |
| 479 | while (ex.More()) { |
| 480 | Update(TopoDS::Face(ex.Current())); |
| 481 | ex.Next(); |
| 482 | } |
| 483 | } |
| 484 | |
| 485 | //======================================================================= |
| 486 | //function : Update |
| 487 | //purpose : |
| 488 | //======================================================================= |
| 489 | |
| 490 | void BRepTools::Update(const TopoDS_Shape& S) |
| 491 | { |
| 492 | switch (S.ShapeType()) { |
| 493 | |
| 494 | case TopAbs_VERTEX : |
| 495 | Update(TopoDS::Vertex(S)); |
| 496 | break; |
| 497 | |
| 498 | case TopAbs_EDGE : |
| 499 | Update(TopoDS::Edge(S)); |
| 500 | break; |
| 501 | |
| 502 | case TopAbs_WIRE : |
| 503 | Update(TopoDS::Wire(S)); |
| 504 | break; |
| 505 | |
| 506 | case TopAbs_FACE : |
| 507 | Update(TopoDS::Face(S)); |
| 508 | break; |
| 509 | |
| 510 | case TopAbs_SHELL : |
| 511 | Update(TopoDS::Shell(S)); |
| 512 | break; |
| 513 | |
| 514 | case TopAbs_SOLID : |
| 515 | Update(TopoDS::Solid(S)); |
| 516 | break; |
| 517 | |
| 518 | case TopAbs_COMPSOLID : |
| 519 | Update(TopoDS::CompSolid(S)); |
| 520 | break; |
| 521 | |
| 522 | case TopAbs_COMPOUND : |
| 523 | Update(TopoDS::Compound(S)); |
| 524 | break; |
| 525 | |
| 526 | default: |
| 527 | break; |
| 528 | |
| 529 | } |
| 530 | } |
| 531 | |
| 532 | //======================================================================= |
| 533 | //function : UpdateFaceUVPoints |
| 534 | //purpose : Reset the UV points of edges on the Face |
| 535 | //======================================================================= |
| 536 | void BRepTools::UpdateFaceUVPoints(const TopoDS_Face& theF) |
| 537 | { |
| 538 | // For each edge of the face <F> reset the UV points to the bounding |
| 539 | // points of the parametric curve of the edge on the face. |
| 540 | |
| 541 | // Get surface of the face |
| 542 | TopLoc_Location aLoc; |
| 543 | const Handle(Geom_Surface)& aSurf = BRep_Tool::Surface(theF, aLoc); |
| 544 | // Iterate on edges and reset UV points |
| 545 | TopExp_Explorer anExpE(theF, TopAbs_EDGE); |
| 546 | for (; anExpE.More(); anExpE.Next()) |
| 547 | { |
| 548 | const TopoDS_Edge& aE = TopoDS::Edge(anExpE.Current()); |
| 549 | |
| 550 | const Handle(BRep_TEdge)& TE = *((Handle(BRep_TEdge)*)&aE.TShape()); |
| 551 | if (TE->Locked()) |
| 552 | return; |
| 553 | |
| 554 | const TopLoc_Location aELoc = aLoc.Predivided(aE.Location()); |
| 555 | // Edge representations |
| 556 | BRep_ListOfCurveRepresentation& aLCR = TE->ChangeCurves(); |
| 557 | BRep_ListIteratorOfListOfCurveRepresentation itLCR(aLCR); |
| 558 | for (; itLCR.More(); itLCR.Next()) |
| 559 | { |
| 560 | Handle(BRep_GCurve) GC = Handle(BRep_GCurve)::DownCast(itLCR.Value()); |
| 561 | if (!GC.IsNull() && GC->IsCurveOnSurface(aSurf, aELoc)) |
| 562 | { |
| 563 | // Update UV points |
| 564 | GC->Update(); |
| 565 | break; |
| 566 | } |
| 567 | } |
| 568 | } |
| 569 | } |
| 570 | |
| 571 | //======================================================================= |
| 572 | //function : Compare |
| 573 | //purpose : |
| 574 | //======================================================================= |
| 575 | |
| 576 | Standard_Boolean BRepTools::Compare(const TopoDS_Vertex& V1, |
| 577 | const TopoDS_Vertex& V2) |
| 578 | { |
| 579 | if (V1.IsSame(V2)) return Standard_True; |
| 580 | gp_Pnt p1 = BRep_Tool::Pnt(V1); |
| 581 | gp_Pnt p2 = BRep_Tool::Pnt(V2); |
| 582 | Standard_Real l = p1.Distance(p2); |
| 583 | if (l <= BRep_Tool::Tolerance(V1)) return Standard_True; |
| 584 | if (l <= BRep_Tool::Tolerance(V2)) return Standard_True; |
| 585 | return Standard_False; |
| 586 | } |
| 587 | |
| 588 | //======================================================================= |
| 589 | //function : Compare |
| 590 | //purpose : |
| 591 | //======================================================================= |
| 592 | |
| 593 | Standard_Boolean BRepTools::Compare(const TopoDS_Edge& E1, |
| 594 | const TopoDS_Edge& E2) |
| 595 | { |
| 596 | if (E1.IsSame(E2)) return Standard_True; |
| 597 | return Standard_False; |
| 598 | } |
| 599 | |
| 600 | //======================================================================= |
| 601 | //function : OuterWire |
| 602 | //purpose : |
| 603 | //======================================================================= |
| 604 | |
| 605 | TopoDS_Wire BRepTools::OuterWire(const TopoDS_Face& F) |
| 606 | { |
| 607 | TopoDS_Wire Wres; |
| 608 | TopExp_Explorer expw (F,TopAbs_WIRE); |
| 609 | |
| 610 | if (expw.More()) { |
| 611 | Wres = TopoDS::Wire(expw.Current()); |
| 612 | expw.Next(); |
| 613 | if (expw.More()) { |
| 614 | Standard_Real UMin, UMax, VMin, VMax; |
| 615 | Standard_Real umin, umax, vmin, vmax; |
| 616 | BRepTools::UVBounds(F,Wres,UMin,UMax,VMin,VMax); |
| 617 | while (expw.More()) { |
| 618 | const TopoDS_Wire& W = TopoDS::Wire(expw.Current()); |
| 619 | BRepTools::UVBounds(F,W,umin, umax, vmin, vmax); |
| 620 | if ((umin <= UMin) && |
| 621 | (umax >= UMax) && |
| 622 | (vmin <= VMin) && |
| 623 | (vmax >= VMax)) { |
| 624 | Wres = W; |
| 625 | UMin = umin; |
| 626 | UMax = umax; |
| 627 | VMin = vmin; |
| 628 | VMax = vmax; |
| 629 | } |
| 630 | expw.Next(); |
| 631 | } |
| 632 | } |
| 633 | } |
| 634 | return Wres; |
| 635 | } |
| 636 | |
| 637 | //======================================================================= |
| 638 | //function : Map3DEdges |
| 639 | //purpose : |
| 640 | //======================================================================= |
| 641 | |
| 642 | void BRepTools::Map3DEdges(const TopoDS_Shape& S, |
| 643 | TopTools_IndexedMapOfShape& M) |
| 644 | { |
| 645 | TopExp_Explorer Ex; |
| 646 | for (Ex.Init(S,TopAbs_EDGE); Ex.More(); Ex.Next()) { |
| 647 | if (!BRep_Tool::Degenerated(TopoDS::Edge(Ex.Current()))) |
| 648 | M.Add(Ex.Current()); |
| 649 | } |
| 650 | } |
| 651 | |
| 652 | //======================================================================= |
| 653 | //function : Dump |
| 654 | //purpose : |
| 655 | //======================================================================= |
| 656 | |
| 657 | void BRepTools::Dump(const TopoDS_Shape& Sh, Standard_OStream& S) |
| 658 | { |
| 659 | BRepTools_ShapeSet SS; |
| 660 | SS.Add(Sh); |
| 661 | SS.Dump(Sh,S); |
| 662 | SS.Dump(S); |
| 663 | } |
| 664 | |
| 665 | //======================================================================= |
| 666 | //function : Write |
| 667 | //purpose : |
| 668 | //======================================================================= |
| 669 | |
| 670 | void BRepTools::Write(const TopoDS_Shape& Sh, Standard_OStream& S, |
| 671 | const Handle(Message_ProgressIndicator)& PR) |
| 672 | { |
| 673 | BRepTools_ShapeSet SS; |
| 674 | SS.SetProgress(PR); |
| 675 | SS.Add(Sh); |
| 676 | SS.Write(S); |
| 677 | SS.Write(Sh,S); |
| 678 | } |
| 679 | |
| 680 | |
| 681 | //======================================================================= |
| 682 | //function : Read |
| 683 | //purpose : |
| 684 | //======================================================================= |
| 685 | |
| 686 | void BRepTools::Read(TopoDS_Shape& Sh, |
| 687 | std::istream& S, |
| 688 | const BRep_Builder& B, |
| 689 | const Handle(Message_ProgressIndicator)& PR) |
| 690 | { |
| 691 | BRepTools_ShapeSet SS(B); |
| 692 | SS.SetProgress(PR); |
| 693 | SS.Read(S); |
| 694 | SS.Read(Sh,S); |
| 695 | } |
| 696 | |
| 697 | //======================================================================= |
| 698 | //function : Write |
| 699 | //purpose : |
| 700 | //======================================================================= |
| 701 | |
| 702 | Standard_Boolean BRepTools::Write(const TopoDS_Shape& Sh, |
| 703 | const Standard_CString File, |
| 704 | const Handle(Message_ProgressIndicator)& PR) |
| 705 | { |
| 706 | std::ofstream os; |
| 707 | OSD_OpenStream(os, File, std::ios::out); |
| 708 | if (!os.is_open() || !os.good()) |
| 709 | return Standard_False; |
| 710 | |
| 711 | Standard_Boolean isGood = (os.good() && !os.eof()); |
| 712 | if(!isGood) |
| 713 | return isGood; |
| 714 | |
| 715 | BRepTools_ShapeSet SS; |
| 716 | SS.SetProgress(PR); |
| 717 | SS.Add(Sh); |
| 718 | |
| 719 | os << "DBRep_DrawableShape\n"; // for easy Draw read |
| 720 | SS.Write(os); |
| 721 | isGood = os.good(); |
| 722 | if(isGood ) |
| 723 | SS.Write(Sh,os); |
| 724 | os.flush(); |
| 725 | isGood = os.good(); |
| 726 | |
| 727 | errno = 0; |
| 728 | os.close(); |
| 729 | isGood = os.good() && isGood && !errno; |
| 730 | |
| 731 | return isGood; |
| 732 | } |
| 733 | |
| 734 | //======================================================================= |
| 735 | //function : Read |
| 736 | //purpose : |
| 737 | //======================================================================= |
| 738 | |
| 739 | Standard_Boolean BRepTools::Read(TopoDS_Shape& Sh, |
| 740 | const Standard_CString File, |
| 741 | const BRep_Builder& B, |
| 742 | const Handle(Message_ProgressIndicator)& PR) |
| 743 | { |
| 744 | std::filebuf fic; |
| 745 | std::istream in(&fic); |
| 746 | OSD_OpenStream (fic, File, std::ios::in); |
| 747 | if(!fic.is_open()) return Standard_False; |
| 748 | |
| 749 | BRepTools_ShapeSet SS(B); |
| 750 | SS.SetProgress(PR); |
| 751 | SS.Read(in); |
| 752 | if(!SS.NbShapes()) return Standard_False; |
| 753 | SS.Read(Sh,in); |
| 754 | return Standard_True; |
| 755 | } |
| 756 | |
| 757 | |
| 758 | //======================================================================= |
| 759 | //function : Clean |
| 760 | //purpose : |
| 761 | //======================================================================= |
| 762 | |
| 763 | void BRepTools::Clean (const TopoDS_Shape& theShape) |
| 764 | { |
| 765 | if (theShape.IsNull()) |
| 766 | return; |
| 767 | |
| 768 | BRep_Builder aBuilder; |
| 769 | Handle(Poly_Triangulation) aNullTriangulation; |
| 770 | Handle(Poly_PolygonOnTriangulation) aNullPoly; |
| 771 | |
| 772 | TopTools_MapOfShape aShapeMap; |
| 773 | const TopLoc_Location anEmptyLoc; |
| 774 | |
| 775 | TopExp_Explorer aFaceIt(theShape, TopAbs_FACE); |
| 776 | for (; aFaceIt.More(); aFaceIt.Next()) |
| 777 | { |
| 778 | TopoDS_Shape aFaceNoLoc = aFaceIt.Value(); |
| 779 | aFaceNoLoc.Location (anEmptyLoc); |
| 780 | if (!aShapeMap.Add (aFaceNoLoc)) |
| 781 | { |
| 782 | // the face has already been processed |
| 783 | continue; |
| 784 | } |
| 785 | |
| 786 | const TopoDS_Face& aFace = TopoDS::Face (aFaceIt.Current()); |
| 787 | if (!BRep_Tool::IsGeometric (aFace)) |
| 788 | { |
| 789 | // Do not remove triangulation as there is no surface to recompute it. |
| 790 | continue; |
| 791 | } |
| 792 | |
| 793 | |
| 794 | TopLoc_Location aLoc; |
| 795 | const Handle(Poly_Triangulation)& aTriangulation = |
| 796 | BRep_Tool::Triangulation(aFace, aLoc); |
| 797 | |
| 798 | if (aTriangulation.IsNull()) |
| 799 | continue; |
| 800 | |
| 801 | // Nullify edges |
| 802 | // Theoretically, the edges on the face (with surface) may have no geometry |
| 803 | // (no curve 3d or 2d or both). Such faces should be considered as invalid and |
| 804 | // are not supported by current implementation. So, both triangulation of the face |
| 805 | // and polygon on triangulation of the edges are removed unconditionally. |
| 806 | TopExp_Explorer aEdgeIt(aFace, TopAbs_EDGE); |
| 807 | for (; aEdgeIt.More(); aEdgeIt.Next()) |
| 808 | { |
| 809 | const TopoDS_Edge& aEdge = TopoDS::Edge(aEdgeIt.Current()); |
| 810 | aBuilder.UpdateEdge(aEdge, aNullPoly, aTriangulation, aLoc); |
| 811 | } |
| 812 | |
| 813 | aBuilder.UpdateFace(aFace, aNullTriangulation); |
| 814 | } |
| 815 | |
| 816 | // Iterate over all edges seeking for 3d polygons |
| 817 | Handle (Poly_Polygon3D) aNullPoly3d; |
| 818 | TopExp_Explorer aEdgeIt (theShape, TopAbs_EDGE); |
| 819 | for (; aEdgeIt.More (); aEdgeIt.Next ()) |
| 820 | { |
| 821 | TopoDS_Edge anEdgeNoLoc = TopoDS::Edge (aEdgeIt.Value()); |
| 822 | anEdgeNoLoc.Location (anEmptyLoc); |
| 823 | |
| 824 | if (!aShapeMap.Add (anEdgeNoLoc)) |
| 825 | { |
| 826 | // the edge has already been processed |
| 827 | continue; |
| 828 | } |
| 829 | |
| 830 | if (!BRep_Tool::IsGeometric (TopoDS::Edge (anEdgeNoLoc))) |
| 831 | { |
| 832 | // Do not remove polygon 3d as there is no curve to recompute it. |
| 833 | continue; |
| 834 | } |
| 835 | |
| 836 | TopLoc_Location aLoc; |
| 837 | Handle (Poly_Polygon3D) aPoly3d = BRep_Tool::Polygon3D (anEdgeNoLoc, aLoc); |
| 838 | if (aPoly3d.IsNull()) |
| 839 | continue; |
| 840 | |
| 841 | aBuilder.UpdateEdge (anEdgeNoLoc, aNullPoly3d); |
| 842 | } |
| 843 | } |
| 844 | //======================================================================= |
| 845 | //function : CleanGeometry |
| 846 | //purpose : |
| 847 | //======================================================================= |
| 848 | |
| 849 | void BRepTools::CleanGeometry(const TopoDS_Shape& theShape) |
| 850 | { |
| 851 | if (theShape.IsNull()) |
| 852 | return; |
| 853 | |
| 854 | BRep_Builder aBuilder; |
| 855 | |
| 856 | for (TopExp_Explorer aFaceIt(theShape, TopAbs_FACE); aFaceIt.More(); aFaceIt.Next()) |
| 857 | { |
| 858 | TopLoc_Location aLocation; |
| 859 | const TopoDS_Face& aFace = TopoDS::Face(aFaceIt.Current()); |
| 860 | const Handle(Geom_Surface)& aSurface = BRep_Tool::Surface(aFace, aLocation); |
| 861 | |
| 862 | for (TopExp_Explorer aEdgeIt(aFace, TopAbs_EDGE); aEdgeIt.More(); aEdgeIt.Next()) |
| 863 | { |
| 864 | const TopoDS_Edge& anEdge = TopoDS::Edge(aEdgeIt.Current()); |
| 865 | aBuilder.UpdateEdge(anEdge, Handle(Geom2d_Curve)(), aSurface, |
| 866 | aLocation, BRep_Tool::Tolerance(anEdge)); |
| 867 | } |
| 868 | |
| 869 | aBuilder.UpdateFace(aFace, Handle(Geom_Surface)(), aFace.Location(), BRep_Tool::Tolerance(aFace)); |
| 870 | } |
| 871 | |
| 872 | for (TopExp_Explorer aEdgeIt2(theShape, TopAbs_EDGE); aEdgeIt2.More(); aEdgeIt2.Next()) |
| 873 | { |
| 874 | const TopoDS_Edge& anEdge = TopoDS::Edge(aEdgeIt2.Current()); |
| 875 | |
| 876 | aBuilder.UpdateEdge(anEdge, Handle(Geom_Curve)(), |
| 877 | TopLoc_Location(), BRep_Tool::Tolerance(anEdge)); |
| 878 | } |
| 879 | } |
| 880 | |
| 881 | |
| 882 | //======================================================================= |
| 883 | //function : RemoveUnusedPCurves |
| 884 | //purpose : |
| 885 | //======================================================================= |
| 886 | |
| 887 | void BRepTools::RemoveUnusedPCurves(const TopoDS_Shape& S) |
| 888 | { |
| 889 | TColStd_MapOfTransient UsedSurfaces; |
| 890 | |
| 891 | TopExp_Explorer Explo(S, TopAbs_FACE); |
| 892 | for (; Explo.More(); Explo.Next()) |
| 893 | { |
| 894 | TopoDS_Face aFace = TopoDS::Face(Explo.Current()); |
| 895 | TopLoc_Location aLoc; |
| 896 | Handle(Geom_Surface) aSurf = BRep_Tool::Surface(aFace, aLoc); |
| 897 | UsedSurfaces.Add(aSurf); |
| 898 | } |
| 899 | |
| 900 | TopTools_IndexedMapOfShape Emap; |
| 901 | TopExp::MapShapes(S, TopAbs_EDGE, Emap); |
| 902 | |
| 903 | Standard_Integer i; |
| 904 | for (i = 1; i <= Emap.Extent(); i++) |
| 905 | { |
| 906 | const Handle(BRep_TEdge)& TE = *((Handle(BRep_TEdge)*) &Emap(i).TShape()); |
| 907 | BRep_ListOfCurveRepresentation& lcr = TE -> ChangeCurves(); |
| 908 | BRep_ListIteratorOfListOfCurveRepresentation itrep(lcr ); |
| 909 | while (itrep.More()) |
| 910 | { |
| 911 | Standard_Boolean ToRemove = Standard_False; |
| 912 | |
| 913 | Handle(BRep_CurveRepresentation) CurveRep = itrep.Value(); |
| 914 | if (CurveRep->IsCurveOnSurface()) |
| 915 | { |
| 916 | Handle(Geom_Surface) aSurface = CurveRep->Surface(); |
| 917 | if (!UsedSurfaces.Contains(aSurface)) |
| 918 | ToRemove = Standard_True; |
| 919 | } |
| 920 | else if (CurveRep->IsRegularity()) |
| 921 | { |
| 922 | Handle(Geom_Surface) Surf1 = CurveRep->Surface(); |
| 923 | Handle(Geom_Surface) Surf2 = CurveRep->Surface2(); |
| 924 | ToRemove = (!UsedSurfaces.Contains(Surf1) || !UsedSurfaces.Contains(Surf2)); |
| 925 | } |
| 926 | |
| 927 | if (ToRemove) |
| 928 | lcr.Remove(itrep); |
| 929 | else |
| 930 | itrep.Next(); |
| 931 | } |
| 932 | } |
| 933 | } |
| 934 | |
| 935 | //======================================================================= |
| 936 | //function : Triangulation |
| 937 | //purpose : |
| 938 | //======================================================================= |
| 939 | |
| 940 | Standard_Boolean BRepTools::Triangulation(const TopoDS_Shape& theShape, |
| 941 | const Standard_Real theLinDefl, |
| 942 | const Standard_Boolean theToCheckFreeEdges) |
| 943 | { |
| 944 | TopExp_Explorer anEdgeIter; |
| 945 | TopLoc_Location aDummyLoc; |
| 946 | for (TopExp_Explorer aFaceIter (theShape, TopAbs_FACE); aFaceIter.More(); aFaceIter.Next()) |
| 947 | { |
| 948 | const TopoDS_Face& aFace = TopoDS::Face (aFaceIter.Current()); |
| 949 | const Handle(Poly_Triangulation)& aTri = BRep_Tool::Triangulation (aFace, aDummyLoc); |
| 950 | if (aTri.IsNull() |
| 951 | || aTri->Deflection() > theLinDefl) |
| 952 | { |
| 953 | return Standard_False; |
| 954 | } |
| 955 | |
| 956 | for (anEdgeIter.Init (aFace, TopAbs_EDGE); anEdgeIter.More(); anEdgeIter.Next()) |
| 957 | { |
| 958 | const TopoDS_Edge& anEdge = TopoDS::Edge (anEdgeIter.Current()); |
| 959 | const Handle(Poly_PolygonOnTriangulation)& aPoly = BRep_Tool::PolygonOnTriangulation (anEdge, aTri, aDummyLoc); |
| 960 | if (aPoly.IsNull()) |
| 961 | { |
| 962 | return Standard_False; |
| 963 | } |
| 964 | } |
| 965 | } |
| 966 | if (!theToCheckFreeEdges) |
| 967 | { |
| 968 | return Standard_True; |
| 969 | } |
| 970 | |
| 971 | Handle(Poly_Triangulation) anEdgeTri; |
| 972 | for (anEdgeIter.Init (theShape, TopAbs_EDGE, TopAbs_FACE); anEdgeIter.More(); anEdgeIter.Next()) |
| 973 | { |
| 974 | const TopoDS_Edge& anEdge = TopoDS::Edge (anEdgeIter.Current()); |
| 975 | const Handle(Poly_Polygon3D)& aPolygon = BRep_Tool::Polygon3D (anEdge, aDummyLoc); |
| 976 | if (!aPolygon.IsNull()) |
| 977 | { |
| 978 | if (aPolygon->Deflection() > theLinDefl) |
| 979 | { |
| 980 | return Standard_False; |
| 981 | } |
| 982 | } |
| 983 | else |
| 984 | { |
| 985 | const Handle(Poly_PolygonOnTriangulation)& aPoly = BRep_Tool::PolygonOnTriangulation (anEdge, anEdgeTri, aDummyLoc); |
| 986 | if (aPoly.IsNull() |
| 987 | || anEdgeTri.IsNull() |
| 988 | || anEdgeTri->Deflection() > theLinDefl) |
| 989 | { |
| 990 | return Standard_False; |
| 991 | } |
| 992 | } |
| 993 | } |
| 994 | |
| 995 | return Standard_True; |
| 996 | } |
| 997 | |
| 998 | |
| 999 | //======================================================================= |
| 1000 | //function : IsReallyClosed |
| 1001 | //purpose : |
| 1002 | //======================================================================= |
| 1003 | |
| 1004 | Standard_Boolean BRepTools::IsReallyClosed(const TopoDS_Edge& E, |
| 1005 | const TopoDS_Face& F) |
| 1006 | { |
| 1007 | if (!BRep_Tool::IsClosed(E,F)) { |
| 1008 | return Standard_False; |
| 1009 | } |
| 1010 | Standard_Integer nbocc = 0; |
| 1011 | TopExp_Explorer exp; |
| 1012 | for (exp.Init(F,TopAbs_EDGE);exp.More();exp.Next()) { |
| 1013 | if (exp.Current().IsSame(E)) { |
| 1014 | nbocc++; |
| 1015 | } |
| 1016 | } |
| 1017 | return nbocc == 2; |
| 1018 | } |
| 1019 | |
| 1020 | //======================================================================= |
| 1021 | //function : DetectClosedness |
| 1022 | //purpose : |
| 1023 | //======================================================================= |
| 1024 | |
| 1025 | void BRepTools::DetectClosedness(const TopoDS_Face& theFace, |
| 1026 | Standard_Boolean& theUclosed, |
| 1027 | Standard_Boolean& theVclosed) |
| 1028 | { |
| 1029 | theUclosed = theVclosed = Standard_False; |
| 1030 | |
| 1031 | TopExp_Explorer Explo(theFace, TopAbs_EDGE); |
| 1032 | for (; Explo.More(); Explo.Next()) |
| 1033 | { |
| 1034 | const TopoDS_Edge& anEdge = TopoDS::Edge(Explo.Current()); |
| 1035 | if (BRep_Tool::IsClosed(anEdge, theFace) && |
| 1036 | BRepTools::IsReallyClosed(anEdge, theFace)) |
| 1037 | { |
| 1038 | Standard_Real fpar, lpar; |
| 1039 | Handle(Geom2d_Curve) PCurve1 = BRep_Tool::CurveOnSurface(anEdge, theFace, fpar, lpar); |
| 1040 | Handle(Geom2d_Curve) PCurve2 = BRep_Tool::CurveOnSurface(TopoDS::Edge(anEdge.Reversed()), |
| 1041 | theFace, fpar, lpar); |
| 1042 | gp_Pnt2d Point1 = PCurve1->Value(fpar); |
| 1043 | gp_Pnt2d Point2 = PCurve2->Value(fpar); |
| 1044 | Standard_Boolean IsUiso = (Abs(Point1.X() - Point2.X()) > Abs(Point1.Y() - Point2.Y())); |
| 1045 | if (IsUiso) |
| 1046 | theUclosed = Standard_True; |
| 1047 | else |
| 1048 | theVclosed = Standard_True; |
| 1049 | } |
| 1050 | } |
| 1051 | } |
| 1052 | |
| 1053 | //======================================================================= |
| 1054 | //function : EvalAndUpdateTol |
| 1055 | //purpose : |
| 1056 | //======================================================================= |
| 1057 | |
| 1058 | Standard_Real BRepTools::EvalAndUpdateTol(const TopoDS_Edge& theE, |
| 1059 | const Handle(Geom_Curve)& C3d, |
| 1060 | const Handle(Geom2d_Curve) C2d, |
| 1061 | const Handle(Geom_Surface)& S, |
| 1062 | const Standard_Real f, |
| 1063 | const Standard_Real l) |
| 1064 | { |
| 1065 | Standard_Real newtol = 0.; |
| 1066 | Standard_Real first = f, last = l; |
| 1067 | //Set first, last to avoid ErrosStatus = 2 because of |
| 1068 | //too strong checking of limits in class CheckCurveOnSurface |
| 1069 | // |
| 1070 | if(!C3d->IsPeriodic()) |
| 1071 | { |
| 1072 | first = Max(first, C3d->FirstParameter()); |
| 1073 | last = Min(last, C3d->LastParameter()); |
| 1074 | } |
| 1075 | if(!C2d->IsPeriodic()) |
| 1076 | { |
| 1077 | first = Max(first, C2d->FirstParameter()); |
| 1078 | last = Min(last, C2d->LastParameter()); |
| 1079 | } |
| 1080 | |
| 1081 | GeomLib_CheckCurveOnSurface CT(C3d, S, first, last); |
| 1082 | CT.Perform(C2d); |
| 1083 | if(CT.IsDone()) |
| 1084 | { |
| 1085 | newtol = CT.MaxDistance(); |
| 1086 | } |
| 1087 | else |
| 1088 | { |
| 1089 | if(CT.ErrorStatus() == 3 || (CT.ErrorStatus() == 2 && |
| 1090 | (C3d->IsPeriodic() || C2d->IsPeriodic()))) |
| 1091 | { |
| 1092 | //Try to estimate by sample points |
| 1093 | Standard_Integer nbint = 22; |
| 1094 | Standard_Real dt = (last - first) / nbint; |
| 1095 | dt = Max(dt, Precision::Confusion()); |
| 1096 | Standard_Real d, dmax = 0.; |
| 1097 | gp_Pnt2d aP2d; |
| 1098 | gp_Pnt aPC, aPS; |
| 1099 | Standard_Integer cnt = 0; |
| 1100 | Standard_Real t = first; |
| 1101 | for(; t <= last; t += dt) |
| 1102 | { |
| 1103 | cnt++; |
| 1104 | C2d->D0(t, aP2d); |
| 1105 | C3d->D0(t, aPC); |
| 1106 | S->D0(aP2d.X(), aP2d.Y(), aPS); |
| 1107 | d = aPS.SquareDistance(aPC); |
| 1108 | if(d > dmax) |
| 1109 | { |
| 1110 | dmax = d; |
| 1111 | } |
| 1112 | } |
| 1113 | if(cnt < nbint + 1) |
| 1114 | { |
| 1115 | t = last; |
| 1116 | C2d->D0(t, aP2d); |
| 1117 | C3d->D0(t, aPC); |
| 1118 | S->D0(aP2d.X(), aP2d.Y(), aPS); |
| 1119 | d = aPS.SquareDistance(aPC); |
| 1120 | if(d > dmax) |
| 1121 | { |
| 1122 | dmax = d; |
| 1123 | } |
| 1124 | } |
| 1125 | |
| 1126 | newtol = 1.2 * Sqrt(dmax); |
| 1127 | } |
| 1128 | } |
| 1129 | Standard_Real Tol = BRep_Tool::Tolerance(theE); |
| 1130 | if(newtol > Tol) |
| 1131 | { |
| 1132 | Tol = newtol; |
| 1133 | BRep_Builder B; |
| 1134 | B.UpdateEdge(theE, Tol); |
| 1135 | } |
| 1136 | |
| 1137 | return Tol; |
| 1138 | |
| 1139 | } |
| 1140 | |
| 1141 | //======================================================================= |
| 1142 | //function : OriEdgeInFace |
| 1143 | //purpose : |
| 1144 | //======================================================================= |
| 1145 | |
| 1146 | TopAbs_Orientation BRepTools::OriEdgeInFace (const TopoDS_Edge& E, |
| 1147 | const TopoDS_Face& F ) |
| 1148 | |
| 1149 | { |
| 1150 | TopExp_Explorer Exp(F.Oriented(TopAbs_FORWARD),TopAbs_EDGE); |
| 1151 | |
| 1152 | for (; Exp.More() ;Exp.Next()) { |
| 1153 | if (Exp.Current().IsSame(E)) { |
| 1154 | return Exp.Current().Orientation(); |
| 1155 | } |
| 1156 | } |
| 1157 | throw Standard_ConstructionError("BRepTools::OriEdgeInFace"); |
| 1158 | } |