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0031642: Visualization - crash in Graphic3d_Structure::SetVisual() on redisplaying...
[occt.git] / src / MeshTest / MeshTest.cxx
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b311480e 1// Created on: 1993-09-22
2// Created by: Didier PIFFAULT
3// Copyright (c) 1993-1999 Matra Datavision
973c2be1 4// Copyright (c) 1999-2014 OPEN CASCADE SAS
b311480e 5//
973c2be1 6// This file is part of Open CASCADE Technology software library.
b311480e 7//
d5f74e42 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
973c2be1 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.
b311480e 13//
973c2be1 14// Alternatively, this file may be used under the terms of Open CASCADE
15// commercial license or contractual agreement.
7fd59977 16
4006ca98 17#include <MeshTest.hxx>
18
19#include <stdio.h>
7fd59977 20
42cf5bc1 21#include <Bnd_Box.hxx>
7fd59977 22#include <BRep_Builder.hxx>
42cf5bc1 23#include <BRepAdaptor_Surface.hxx>
24#include <BRepBndLib.hxx>
25#include <BRepBuilderAPI_MakeFace.hxx>
26#include <BRepBuilderAPI_MakePolygon.hxx>
27#include <BRepBuilderAPI_MakeVertex.hxx>
28#include <BRepLib.hxx>
7fd59977 29#include <BRepMesh_IncrementalMesh.hxx>
42cf5bc1 30#include <BRepTest.hxx>
31#include <BRepTools.hxx>
32#include <CSLib.hxx>
42cf5bc1 33#include <DBRep.hxx>
42cf5bc1 34#include <Draw_Appli.hxx>
7fd59977 35#include <Draw_Segment2D.hxx>
42cf5bc1 36#include <DrawTrSurf.hxx>
42cf5bc1 37#include <GeometryTest.hxx>
4006ca98 38#include <IMeshData_Status.hxx>
7fd59977 39#include <Poly_Connect.hxx>
7fd59977 40#include <TopExp_Explorer.hxx>
d51c7072
O		 41#include <TopTools_MapIteratorOfMapOfShape.hxx>
42
42cf5bc1 43//epa Memory leaks test
44//OAN: for triepoints
57c28b61 45#ifdef _WIN32
7fd59977 46Standard_IMPORT Draw_Viewer dout;
47#endif
48
49#define MAX2(X, Y) ( Abs(X) > Abs(Y)? Abs(X) : Abs(Y) )
50#define MAX3(X, Y, Z) ( MAX2 ( MAX2(X,Y) , Z) )
51
7fd59977 52#define ONETHIRD 0.333333333333333333333333333333333333333333333333333333333333
53#define TWOTHIRD 0.666666666666666666666666666666666666666666666666666666666666
54
0797d9d3 55#ifdef OCCT_DEBUG_MESH_CHRONO
7fd59977 56#include <OSD_Chronometer.hxx>
57Standard_Integer D0Control, D0Internal, D0Unif, D0Edges, NbControls;
58OSD_Chronometer chTotal, chInternal, chControl, chUnif, chAddPoint;
59OSD_Chronometer chEdges, chMaillEdges, chEtuInter, chLastControl, chStock;
60OSD_Chronometer chAdd11, chAdd12, chAdd2, chUpdate, chPointValid;
61OSD_Chronometer chIsos, chPointsOnIsos;
62#endif
63
7fd59977 64//=======================================================================
65//function : incrementalmesh
66//purpose :
67//=======================================================================
d51c7072 68static Standard_Integer incrementalmesh(Draw_Interpretor& di, Standard_Integer nbarg, const char** argv)
7fd59977 69{
49cfd13d 70 if (nbarg < 3)
71 {
72 di << "\
73Builds triangular mesh for the shape\n\
74usage: incmesh Shape LinearDeflection [options]\n\
75options:\n\
46478ffe 76 -a val angular deflection for edges in deg\n\
74da0216 77 (default ~28.64 deg = 0.5 rad)\n\n\
46478ffe 78 -ai val angular deflection inside of faces in deg\n\
79 (default ~57.29 deg = 1 rad)\n\n\
80 -di val Linear deflection used to tessellate the face interior.\n\
74da0216 81 -min minimum size parameter limiting size of triangle's\n\
82 edges to prevent sinking into amplification in case\n\
83 of distorted curves and surfaces\n\n\
49cfd13d 84 -relative notifies that relative deflection is used\n\
74da0216 85 (switched off by default)\n\n\
a319f03f 86 -int_vert_off disables insertion of internal vertices into mesh\n\
87 (enabled by default)\n\
f43eff9f 88 -surf_def_off disables control of deflection of mesh from real\n\
89 surface (enabled by default)\n\
e71669c6 90 -parallel enables parallel execution (switched off by default)\n\
0da2ecac 91 -adjust_min enables local adjustment of min size depending on edge size (switched off by default)\n\
128654b6 92 -force_face_def disables usage of shape tolerances for computing face deflection (switched off by default)\n\
93 -decrease enforces the meshing of the shape even if current mesh satisfies the new criteria\
94 (switched off by default).\n";
416d4426 95 return 0;
96 }
7fd59977 97
416d4426 98 TopoDS_Shape aShape = DBRep::Get(argv[1]);
49cfd13d 99 if (aShape.IsNull())
100 {
101 di << " Null shapes are not allowed here\n";
416d4426 102 return 0;
103 }
416d4426 104
7bd071ed 105 IMeshTools_Parameters aMeshParams;
46478ffe 106 aMeshParams.Deflection = aMeshParams.DeflectionInterior =
107 Max(Draw::Atof(argv[2]), Precision::Confusion());
49cfd13d 108
109 if (nbarg > 3)
110 {
111 Standard_Integer i = 3;
112 while (i < nbarg)
113 {
114 TCollection_AsciiString aOpt(argv[i++]);
115 aOpt.LowerCase();
116
117 if (aOpt == "")
118 continue;
119 else if (aOpt == "-relative")
7bd071ed 120 aMeshParams.Relative = Standard_True;
49cfd13d 121 else if (aOpt == "-parallel")
7bd071ed 122 aMeshParams.InParallel = Standard_True;
a319f03f 123 else if (aOpt == "-int_vert_off")
7bd071ed 124 aMeshParams.InternalVerticesMode = Standard_False;
f43eff9f 125 else if (aOpt == "-surf_def_off")
7bd071ed 126 aMeshParams.ControlSurfaceDeflection = Standard_False;
3c1b7084 127 else if (aOpt == "-adjust_min")
128 aMeshParams.AdjustMinSize = Standard_True;
0da2ecac 129 else if (aOpt == "-force_face_def")
130 aMeshParams.ForceFaceDeflection = Standard_True;
128654b6 131 else if (aOpt == "-decrease")
132 aMeshParams.AllowQualityDecrease = Standard_True;
49cfd13d 133 else if (i < nbarg)
134 {
135 Standard_Real aVal = Draw::Atof(argv[i++]);
136 if (aOpt == "-a")
7bd071ed 137 {
138 aMeshParams.Angle = aVal * M_PI / 180.;
139 }
46478ffe 140 else if (aOpt == "-ai")
141 {
142 aMeshParams.AngleInterior = aVal * M_PI / 180.;
143 }
74da0216 144 else if (aOpt == "-min")
7bd071ed 145 aMeshParams.MinSize = aVal;
46478ffe 146 else if (aOpt == "-di")
147 {
148 aMeshParams.DeflectionInterior = aVal;
149 }
49cfd13d 150 else
151 --i;
152 }
153 }
416d4426 154 }
49cfd13d 155
416d4426 156 di << "Incremental Mesh, multi-threading "
7bd071ed 157 << (aMeshParams.InParallel ? "ON" : "OFF") << "\n";
158
e71669c6 159 BRepMesh_IncrementalMesh aMesher (aShape, aMeshParams);
d51c7072 160
49cfd13d 161 di << "Meshing statuses: ";
7bd071ed 162 const Standard_Integer aStatus = aMesher.GetStatusFlags();
163 if (!aStatus)
d51c7072
O		 164 {
165 di << "NoError";
166 }
167 else
168 {
169 Standard_Integer i;
7bd071ed 170 for (i = 0; i < 8; i++)
d51c7072 171 {
7bd071ed 172 Standard_Integer aFlag = aStatus & (1 << i);
173 if (aFlag)
d51c7072 174 {
7bd071ed 175 switch ((IMeshData_Status) aFlag)
d51c7072 176 {
7bd071ed 177 case IMeshData_OpenWire:
178 di << "OpenWire ";
179 break;
180 case IMeshData_SelfIntersectingWire:
181 di << "SelfIntersectingWire ";
182 break;
183 case IMeshData_Failure:
184 di << "Failure ";
185 break;
186 case IMeshData_ReMesh:
187 di << "ReMesh ";
188 break;
189 case IMeshData_UnorientedWire:
190 di << "UnorientedWire ";
191 break;
192 case IMeshData_TooFewPoints:
193 di << "TooFewPoints ";
194 break;
195 case IMeshData_Outdated:
196 di << "Outdated ";
197 break;
198 case IMeshData_Reused:
199 di << "Reused ";
200 break;
201 case IMeshData_NoError:
202 default:
203 break;
d51c7072
O		 204 }
205 }
206 }
207 }
208
7fd59977 209 return 0;
210}
211
b508cbc5 212//=======================================================================
213//function : tessellate
214//purpose :
215//=======================================================================
216static Standard_Integer tessellate (Draw_Interpretor& /*di*/, Standard_Integer nbarg, const char** argv)
217{
218 if (nbarg != 5)
219 {
220 std::cerr << "Builds regular triangulation with specified number of triangles\n"
221 " Usage: tessellate result {surface|face} nbu nbv\n"
222 " Triangulation is put into the face with natural bounds (result);\n"
223 " it will have 2*nbu*nbv triangles and (nbu+1)*(nbv+1) nodes";
224 return 1;
225 }
226
227 const char *aResName = argv[1];
228 const char *aSrcName = argv[2];
229 int aNbU = Draw::Atoi (argv[3]);
230 int aNbV = Draw::Atoi (argv[4]);
231
232 if (aNbU <= 0 || aNbV <= 0)
233 {
234 std::cerr << "Error: Arguments nbu and nbv must be both greater than 0\n";
235 return 1;
236 }
237
238 Handle(Geom_Surface) aSurf = DrawTrSurf::GetSurface(aSrcName);
239 double aUMin, aUMax, aVMin, aVMax;
240 if (! aSurf.IsNull())
241 {
242 aSurf->Bounds (aUMin, aUMax, aVMin, aVMax);
243 }
244 else
245 {
246 TopoDS_Shape aShape = DBRep::Get(aSrcName);
247 if (aShape.IsNull() || aShape.ShapeType() != TopAbs_FACE)
248 {
249 std::cerr << "Error: " << aSrcName << " is not a face\n";
250 return 1;
251 }
252 TopoDS_Face aFace = TopoDS::Face (aShape);
253 aSurf = BRep_Tool::Surface (aFace);
254 if (aSurf.IsNull())
255 {
256 std::cerr << "Error: Face " << aSrcName << " has no surface\n";
257 return 1;
258 }
259
260 BRepTools::UVBounds (aFace, aUMin, aUMax, aVMin, aVMax);
261 }
262 if (Precision::IsInfinite (aUMin) || Precision::IsInfinite (aUMax) ||
263 Precision::IsInfinite (aVMin) || Precision::IsInfinite (aVMax))
264 {
265 std::cerr << "Error: surface has infinite parametric range, aborting\n";
266 return 1;
267 }
268
269 BRepBuilderAPI_MakeFace aFaceMaker (aSurf, aUMin, aUMax, aVMin, aVMax, Precision::Confusion());
270 if (! aFaceMaker.IsDone())
271 {
272 std::cerr << "Error: cannot build face with natural bounds, aborting\n";
273 return 1;
274 }
275 TopoDS_Face aFace = aFaceMaker;
276
277 // create triangulation
278 int aNbNodes = (aNbU + 1) * (aNbV + 1);
279 int aNbTriangles = 2 * aNbU * aNbV;
280 Handle(Poly_Triangulation) aTriangulation =
281 new Poly_Triangulation (aNbNodes, aNbTriangles, Standard_False);
282
283 // fill nodes
284 TColgp_Array1OfPnt &aNodes = aTriangulation->ChangeNodes();
285 GeomAdaptor_Surface anAdSurf (aSurf);
286 double aDU = (aUMax - aUMin) / aNbU;
287 double aDV = (aVMax - aVMin) / aNbV;
288 for (int iU = 0, iShift = 1; iU <= aNbU; iU++, iShift += aNbV + 1)
289 {
290 double aU = aUMin + iU * aDU;
291 for (int iV = 0; iV <= aNbV; iV++)
292 {
293 double aV = aVMin + iV * aDV;
294 gp_Pnt aP = anAdSurf.Value (aU, aV);
295 aNodes.SetValue (iShift + iV, aP);
296 }
297 }
298
299 // fill triangles
300 Poly_Array1OfTriangle &aTriangles = aTriangulation->ChangeTriangles();
301 for (int iU = 0, iShift = 1, iTri = 0; iU < aNbU; iU++, iShift += aNbV + 1)
302 {
303 for (int iV = 0; iV < aNbV; iV++)
304 {
305 int iBase = iShift + iV;
306 Poly_Triangle aTri1 (iBase, iBase + aNbV + 2, iBase + 1);
307 Poly_Triangle aTri2 (iBase, iBase + aNbV + 1, iBase + aNbV + 2);
308 aTriangles.SetValue (++iTri, aTri1);
309 aTriangles.SetValue (++iTri, aTri2);
310 }
311 }
312
313 // put triangulation to face
314 BRep_Builder B;
315 B.UpdateFace (aFace, aTriangulation);
316
317 // fill edge polygons
318 TColStd_Array1OfInteger aUMinIso (1, aNbV + 1), aUMaxIso (1, aNbV + 1);
319 for (int iV = 0; iV <= aNbV; iV++)
320 {
321 aUMinIso.SetValue (1 + iV, 1 + iV);
322 aUMaxIso.SetValue (1 + iV, 1 + iV + aNbU * (1 + aNbV));
323 }
324 TColStd_Array1OfInteger aVMinIso (1, aNbU + 1), aVMaxIso (1, aNbU + 1);
325 for (int iU = 0; iU <= aNbU; iU++)
326 {
327 aVMinIso.SetValue (1 + iU, 1 + iU * (1 + aNbV));
328 aVMaxIso.SetValue (1 + iU, (1 + iU) * (1 + aNbV));
329 }
330 Handle(Poly_PolygonOnTriangulation) aUMinPoly = new Poly_PolygonOnTriangulation (aUMinIso);
331 Handle(Poly_PolygonOnTriangulation) aUMaxPoly = new Poly_PolygonOnTriangulation (aUMaxIso);
332 Handle(Poly_PolygonOnTriangulation) aVMinPoly = new Poly_PolygonOnTriangulation (aVMinIso);
333 Handle(Poly_PolygonOnTriangulation) aVMaxPoly = new Poly_PolygonOnTriangulation (aVMaxIso);
334 for (TopExp_Explorer exp (aFace, TopAbs_EDGE); exp.More(); exp.Next())
335 {
336 TopoDS_Edge anEdge = TopoDS::Edge (exp.Current());
337 Standard_Real aFirst, aLast;
338 Handle(Geom2d_Curve) aC = BRep_Tool::CurveOnSurface (anEdge, aFace, aFirst, aLast);
339 gp_Pnt2d aPFirst = aC->Value (aFirst);
340 gp_Pnt2d aPLast = aC->Value (aLast);
341 if (Abs (aPFirst.X() - aPLast.X()) < 0.1 * (aUMax - aUMin)) // U=const
342 {
343 if (BRep_Tool::IsClosed (anEdge, aFace))
344 B.UpdateEdge (anEdge, aUMinPoly, aUMaxPoly, aTriangulation);
345 else
346 B.UpdateEdge (anEdge, (aPFirst.X() < 0.5 * (aUMin + aUMax) ? aUMinPoly : aUMaxPoly), aTriangulation);
347 }
348 else // V=const
349 {
350 if (BRep_Tool::IsClosed (anEdge, aFace))
351 B.UpdateEdge (anEdge, aVMinPoly, aVMaxPoly, aTriangulation);
352 else
353 B.UpdateEdge (anEdge, (aPFirst.Y() < 0.5 * (aVMin + aVMax) ? aVMinPoly : aVMaxPoly), aTriangulation);
354 }
355 }
356
357 DBRep::Set (aResName, aFace);
358 return 0;
359}
360
7fd59977 361//=======================================================================
362//function : MemLeakTest
363//purpose :
364//=======================================================================
35e08fe8 365static Standard_Integer MemLeakTest(Draw_Interpretor&, Standard_Integer /*nbarg*/, const char** /*argv*/)
7fd59977 366{
367 for(int i=0;i<10000;i++)
368 {
369 BRepBuilderAPI_MakePolygon w(gp_Pnt(0,0,0),gp_Pnt(0,100,0),gp_Pnt(20,100,0),gp_Pnt(20,0,0));
370 w.Close();
371 TopoDS_Wire wireShape( w.Wire());
372 BRepBuilderAPI_MakeFace faceBuilder(wireShape);
373 TopoDS_Face f( faceBuilder.Face());
374 BRepMesh_IncrementalMesh im(f,1);
375 BRepTools::Clean(f);
376 }
377 return 0;
378}
379
7fd59977 380//=======================================================================
381//function : trianglesinfo
382//purpose :
383//=======================================================================
384static Standard_Integer trianglesinfo(Draw_Interpretor& di, Standard_Integer n, const char** a)
385{
386 if (n != 2) return 1;
387 TopoDS_Shape S = DBRep::Get(a[1]);
388 if (S.IsNull()) return 1;
389 TopExp_Explorer ex;
390 Handle(Poly_Triangulation) T;
391 TopLoc_Location L;
392
393 Standard_Real MaxDeflection = 0.0;
394 Standard_Integer nbtriangles = 0, nbnodes = 0;
395 for (ex.Init(S, TopAbs_FACE); ex.More(); ex.Next()) {
396 TopoDS_Face F = TopoDS::Face(ex.Current());
397 T = BRep_Tool::Triangulation(F, L);
398 if (!T.IsNull()) {
399 nbtriangles += T->NbTriangles();
400 nbnodes += T->NbNodes();
401 if (T->Deflection() > MaxDeflection)
402 MaxDeflection = T->Deflection();
403 }
404 }
405
406 di<<"\n";
586db386 407 di<<"This shape contains " <<nbtriangles<<" triangles.\n";
408 di<<" " <<nbnodes <<" nodes.\n";
7fd59977 409 di<<"Maximal deflection " <<MaxDeflection<<"\n";
410 di<<"\n";
0797d9d3 411#ifdef OCCT_DEBUG_MESH_CHRONO
7fd59977 412 Standard_Real tot, addp, unif, contr, inter;
413 Standard_Real edges, mailledges, etuinter, lastcontrol, stock;
414 Standard_Real add11, add12, add2, upda, pointvalid;
415 Standard_Real isos, pointsisos;
416 chTotal.Show(tot); chAddPoint.Show(addp); chUnif.Show(unif);
417 chControl.Show(contr); chInternal.Show(inter);
418 chEdges.Show(edges); chMaillEdges.Show(mailledges);
419 chEtuInter.Show(etuinter); chLastControl.Show(lastcontrol);
420 chStock.Show(stock);
421 chAdd11.Show(add11); chAdd12.Show(add12); chAdd2.Show(add2); chUpdate.Show(upda);
422 chPointValid.Show(pointvalid); chIsos.Show(isos); chPointsOnIsos.Show(pointsisos);
423
424 if (tot > 0.00001) {
586db386 425 di <<"temps total de maillage: "<<tot <<" seconds\n";
426 di <<"dont: \n";
427 di <<"discretisation des edges: "<<edges <<" seconds---> "<< 100*edges/tot <<" %\n";
428 di <<"maillage des edges: "<<mailledges <<" seconds---> "<< 100*mailledges/tot <<" %\n";
429 di <<"controle et points internes: "<<etuinter <<" seconds---> "<< 100*etuinter/tot <<" %\n";
430 di <<"derniers controles: "<<lastcontrol<<" seconds---> "<< 100*lastcontrol/tot<<" %\n";
431 di <<"stockage dans la S.D. "<<stock <<" seconds---> "<< 100*stock/tot <<" %\n";
0d88155b 432 di << "\n";
586db386 433 di <<"et plus precisement: \n";
434 di <<"Add 11ere partie : "<<add11 <<" seconds---> "<<100*add11/tot <<" %\n";
435 di <<"Add 12ere partie : "<<add12 <<" seconds---> "<<100*add12/tot <<" %\n";
436 di <<"Add 2eme partie : "<<add2 <<" seconds---> "<<100*add2/tot <<" %\n";
437 di <<"Update : "<<upda <<" seconds---> "<<100*upda/tot <<" %\n";
438 di <<"AddPoint : "<<addp <<" seconds---> "<<100*addp/tot <<" %\n";
439 di <<"UniformDeflection "<<unif <<" seconds---> "<<100*unif/tot <<" %\n";
440 di <<"Controle : "<<contr <<" seconds---> "<<100*contr/tot <<" %\n";
441 di <<"Points Internes: "<<inter <<" seconds---> "<<100*inter/tot <<" %\n";
442 di <<"calcul des isos et du, dv: "<<isos <<" seconds---> "<<100*isos/tot <<" %\n";
443 di <<"calcul des points sur isos: "<<pointsisos<<" seconds---> "<<100*pointsisos/tot <<" %\n";
444 di <<"IsPointValid: "<<pointvalid<<" seconds---> "<<100*pointvalid/tot <<" %\n";
0d88155b
O		 445 di << "\n";
446
447
448 di <<"nombre d'appels de controle apres points internes : "<< NbControls << "\n";
449 di <<"nombre de points sur restrictions : "<< D0Edges << "\n";
450 di <<"nombre de points calcules par UniformDeflection : "<< D0Unif << "\n";
451 di <<"nombre de points calcules dans InternalVertices : "<< D0Internal << "\n";
452 di <<"nombre de points calcules dans Control : "<< D0Control << "\n";
453 if (nbnodes-D0Edges != 0) {
454 Standard_Real ratio = (Standard_Real)(D0Internal+D0Control)/ (Standard_Real)(nbnodes-D0Edges);
455 di <<"---> Ratio: (D0Internal+D0Control) / (nbNodes-nbOnEdges) : "<< ratio << "\n";
456 }
7fd59977 457
0d88155b 458 di << "\n";
7fd59977 459
0d88155b
O		 460 chTotal.Reset(); chAddPoint.Reset(); chUnif.Reset();
461 chControl.Reset(); chInternal.Reset();
462 chEdges.Reset(); chMaillEdges.Reset();
463 chEtuInter.Reset(); chLastControl.Reset();
464 chStock.Reset();
465 chAdd11.Reset(); chAdd12.Reset(); chAdd2.Reset(); chUpdate.Reset();
466 chPointValid.Reset(); chIsos.Reset(); chPointsOnIsos.Reset();
7fd59977 467
468 }
469#endif
470 return 0;
471}
472
473//=======================================================================
474//function : veriftriangles
475//purpose :
476//=======================================================================
7fd59977 477static Standard_Integer veriftriangles(Draw_Interpretor& di, Standard_Integer n, const char** a)
478{
479 if (n < 2) return 1;
480 Standard_Boolean quiet = 1;
481 if (n == 3) quiet = 0;
482 TopoDS_Shape Sh = DBRep::Get(a[1]);
483 if (Sh.IsNull()) return 1;
484 TopExp_Explorer ex;
485 Handle(Poly_Triangulation) T;
486 TopLoc_Location L;
487 Standard_Integer i, n1, n2, n3;
488 gp_Pnt2d mitri, v1, v2, v3, mi2d1, mi2d2, mi2d3;
489 gp_XYZ vecEd1, vecEd2, vecEd3;
0d88155b 490 // Standard_Real dipo, dm, dv, d1, d2, d3, defle;
7fd59977 491 Standard_Real dipo, dv, d1, d2, d3, defle;
492 Handle(Geom_Surface) S;
493 Standard_Integer nbface = 0;
494 gp_Pnt PP;
495
496 for (ex.Init(Sh, TopAbs_FACE); ex.More(); ex.Next()) {
497 TopoDS_Face F = TopoDS::Face(ex.Current());
498 nbface++;
499 T = BRep_Tool::Triangulation(F, L);
500 Standard_Real deflemax = 0, deflemin = 1.e100;
501 if (!T.IsNull()) {
502 Standard_Real defstock = T->Deflection();
503 const Poly_Array1OfTriangle& triangles = T->Triangles();
504 const TColgp_Array1OfPnt2d& Nodes2d = T->UVNodes();
505 const TColgp_Array1OfPnt& Nodes = T->Nodes();
506
507 S = BRep_Tool::Surface(F, L);
508
509 for(i = 1; i <= triangles.Length(); i++) {
0d88155b
O		 510 if (F.Orientation() == TopAbs_REVERSED)
511 triangles(i).Get(n1,n3,n2);
512 else
513 triangles(i).Get(n1,n2,n3);
514
515 const gp_XY& xy1 = Nodes2d(n1).XY();
516 const gp_XY& xy2 = Nodes2d(n2).XY();
517 const gp_XY& xy3 = Nodes2d(n3).XY();
518
519 mi2d1.SetCoord((xy2.X()+xy3.X())*0.5,
520 (xy2.Y()+xy3.Y())*0.5);
521 mi2d2.SetCoord((xy1.X()+xy3.X())*0.5,
522 (xy1.Y()+xy3.Y())*0.5);
523 mi2d3.SetCoord((xy1.X()+xy2.X())*0.5,
524 (xy1.Y()+xy2.Y())*0.5);
525
526 gp_XYZ p1 = Nodes(n1).Transformed(L.Transformation()).XYZ();
527 gp_XYZ p2 = Nodes(n2).Transformed(L.Transformation()).XYZ();
528 gp_XYZ p3 = Nodes(n3).Transformed(L.Transformation()).XYZ();
529
530 vecEd1=p2-p1;
531 vecEd2=p3-p2;
532 vecEd3=p1-p3;
533 d1=vecEd1.SquareModulus();
534 d2=vecEd2.SquareModulus();
535 d3=vecEd3.SquareModulus();
536
537 if (d1!=0. && d2!=0. && d3!=0.) {
538 gp_XYZ equa(vecEd1^vecEd2);
539 dv=equa.Modulus();
540 if (dv>0.) {
541 equa.SetCoord(equa.X()/dv, equa.Y()/dv, equa.Z()/dv);
542 dipo=equa*p1;
543
544
545 mitri.SetCoord(ONETHIRD*(xy1.X()+xy2.X()+xy3.X()),
546 ONETHIRD*(xy1.Y()+xy2.Y()+xy3.Y()));
547 v1.SetCoord(ONETHIRD*mi2d1.X()+TWOTHIRD*xy1.X(),
548 ONETHIRD*mi2d1.Y()+TWOTHIRD*xy1.Y());
549 v2.SetCoord(ONETHIRD*mi2d2.X()+TWOTHIRD*xy2.X(),
550 ONETHIRD*mi2d2.Y()+TWOTHIRD*xy2.Y());
551 v3.SetCoord(ONETHIRD*mi2d3.X()+TWOTHIRD*xy3.X(),
552 ONETHIRD*mi2d3.Y()+TWOTHIRD*xy3.Y());
553
554 S->D0(mi2d1.X(), mi2d1.Y(), PP);
555 PP = PP.Transformed(L.Transformation());
556 defle = Abs((equa*PP.XYZ())-dipo);
557 deflemax = Max(deflemax, defle);
558 deflemin = Min(deflemin, defle);
559
560 S->D0(mi2d2.X(), mi2d2.Y(), PP);
561 PP = PP.Transformed(L.Transformation());
562 defle = Abs((equa*PP.XYZ())-dipo);
563 deflemax = Max(deflemax, defle);
564 deflemin = Min(deflemin, defle);
565
566 S->D0(mi2d3.X(), mi2d3.Y(), PP);
567 PP = PP.Transformed(L.Transformation());
568 defle = Abs((equa*PP.XYZ())-dipo);
569 deflemax = Max(deflemax, defle);
570 deflemin = Min(deflemin, defle);
571
572 S->D0(v1.X(), v1.Y(), PP);
573 PP = PP.Transformed(L.Transformation());
574 defle = Abs((equa*PP.XYZ())-dipo);
575 deflemax = Max(deflemax, defle);
576 deflemin = Min(deflemin, defle);
577
578 S->D0(v2.X(), v2.Y(), PP);
579 PP = PP.Transformed(L.Transformation());
580 defle = Abs((equa*PP.XYZ())-dipo);
581 deflemax = Max(deflemax, defle);
582 deflemin = Min(deflemin, defle);
583
584 S->D0(v3.X(), v3.Y(), PP);
585 PP = PP.Transformed(L.Transformation());
586 defle = Abs((equa*PP.XYZ())-dipo);
587 deflemax = Max(deflemax, defle);
588 deflemin = Min(deflemin, defle);
589
590 S->D0(mitri.X(), mitri.Y(), PP);
591 PP = PP.Transformed(L.Transformation());
592 defle = Abs((equa*PP.XYZ())-dipo);
593 deflemax = Max(deflemax, defle);
594 deflemin = Min(deflemin, defle);
595
596 if (defle > defstock) {
586db386 597 di <<"face "<< nbface <<" deflection = " << defle <<" pour "<<defstock <<" stockee.\n";
0d88155b
O		 598 }
599 }
600 }
7fd59977 601 }
602 if (!quiet) {
0d88155b 603 di <<"face "<< nbface<<", deflemin = "<< deflemin<<", deflemax = "<<deflemax<<"\n";
7fd59977 604 }
605
606 }
607 }
608
609
610 return 0;
611}
612
7fd59977 613//=======================================================================
614//function : tri2d
615//purpose :
616//=======================================================================
4006ca98 617static Standard_Integer tri2d(Draw_Interpretor&, Standard_Integer n, const char** a)
7fd59977 618{
619
620 if (n != 2) return 1;
621 TopoDS_Shape aLocalShape = DBRep::Get(a[1]);
622 TopoDS_Face F = TopoDS::Face(aLocalShape);
0d88155b 623 // TopoDS_Face F = TopoDS::Face(DBRep::Get(a[1]));
7fd59977 624 if (F.IsNull()) return 1;
625 Handle(Poly_Triangulation) T;
626 TopLoc_Location L;
627
628 T = BRep_Tool::Triangulation(F, L);
629 if (!T.IsNull()) {
7fd59977 630 // Build the connect tool
631 Poly_Connect pc(T);
0d88155b 632
7fd59977 633 Standard_Integer i,j, nFree, nInternal, nbTriangles = T->NbTriangles();
634 Standard_Integer t[3];
0d88155b 635
7fd59977 636 // count the free edges
637 nFree = 0;
638 for (i = 1; i <= nbTriangles; i++) {
639 pc.Triangles(i,t[0],t[1],t[2]);
640 for (j = 0; j < 3; j++)
0d88155b 641 if (t[j] == 0) nFree++;
7fd59977 642 }
0d88155b 643
7fd59977 644 // allocate the arrays
645 TColStd_Array1OfInteger Free(1,2*nFree);
646 nInternal = (3*nbTriangles - nFree) / 2;
647 TColStd_Array1OfInteger Internal(0,2*nInternal);
0d88155b 648
7fd59977 649 Standard_Integer fr = 1, in = 1;
650 const Poly_Array1OfTriangle& triangles = T->Triangles();
651 Standard_Integer nodes[3];
652 for (i = 1; i <= nbTriangles; i++) {
653 pc.Triangles(i,t[0],t[1],t[2]);
654 triangles(i).Get(nodes[0],nodes[1],nodes[2]);
655 for (j = 0; j < 3; j++) {
0d88155b
O		 656 Standard_Integer k = (j+1) % 3;
657 if (t[j] == 0) {
658 Free(fr) = nodes[j];
659 Free(fr+1) = nodes[k];
660 fr += 2;
661 }
662 // internal edge if this triangle has a lower index than the adjacent
663 else if (i < t[j]) {
664 Internal(in) = nodes[j];
665 Internal(in+1) = nodes[k];
666 in += 2;
667 }
7fd59977 668 }
669 }
0d88155b 670
7fd59977 671 // Display the edges
672 if (T->HasUVNodes()) {
673 const TColgp_Array1OfPnt2d& Nodes2d = T->UVNodes();
674
675 Handle(Draw_Segment2D) Seg;
676
677 // free edges
678 Standard_Integer nn;
679 nn = Free.Length() / 2;
680 for (i = 1; i <= nn; i++) {
0d88155b
O		 681 Seg = new Draw_Segment2D(Nodes2d(Free(2*i-1)),
682 Nodes2d(Free(2*i)),
683 Draw_rouge);
684 dout << Seg;
7fd59977 685 }
0d88155b 686
7fd59977 687 // internal edges
0d88155b 688
7fd59977 689 nn = nInternal;
690 for (i = 1; i <= nn; i++) {
0d88155b
O		 691 Seg = new Draw_Segment2D(Nodes2d(Internal(2*i-1)),
692 Nodes2d(Internal(2*i)),
693 Draw_bleu);
694 dout << Seg;
7fd59977 695 }
696 }
697 dout.Flush();
698 }
699
700 return 0;
701}
702
7fd59977 703//=======================================================================
704//function : wavefront
705//purpose :
706//=======================================================================
7fd59977 707static Standard_Integer wavefront(Draw_Interpretor&, Standard_Integer nbarg, const char** argv)
708{
709 if (nbarg < 2) return 1;
710
711 TopoDS_Shape S = DBRep::Get(argv[1]);
712 if (S.IsNull()) return 1;
713
714 // creation du maillage s'il n'existe pas.
715
716 Bnd_Box B;
717 Standard_Real aXmin, aYmin, aZmin, aXmax, aYmax, aZmax;
718 BRepBndLib::Add(S, B);
719 B.Get(aXmin, aYmin, aZmin, aXmax, aYmax, aZmax);
720 Standard_Real aDeflection =
721 MAX3( aXmax-aXmin , aYmax-aYmin , aZmax-aZmin) * 0.004;
722
b3a7aa39 723 BRepMesh_IncrementalMesh aMesh (S, aDeflection);
7fd59977 724
725
726 TopLoc_Location L;
727 TopExp_Explorer ex;
728
729 Standard_Integer i, nbface = 0;
730 Standard_Boolean OK = Standard_True;
731 gp_Vec D1U,D1V;
732 gp_Vec D2U,D2V,D2UV;
733 gp_Dir Nor;
734 gp_Pnt P;
735 Standard_Real U, V;
9fd2d2c3 736 CSLib_DerivativeStatus aStatus;
7fd59977 737 CSLib_NormalStatus NStat;
738 Standard_Real x, y, z;
739 Standard_Integer n1, n2, n3;
740 Standard_Integer k1, k2, k3;
0d88155b 741
7fd59977 742 char ffile[100];
0d88155b 743
7fd59977 744 if (nbarg == 3) {
745 strcpy(ffile, argv[2]);
746 strcat(ffile, ".obj");
747 }
748 else strcpy(ffile, "wave.obj");
749 FILE* outfile = fopen(ffile, "w");
750
751
752 fprintf(outfile, "%s %s\n%s %s\n\n", "# CASCADE ","MATRA DATAVISION", "#", ffile);
753
754 Standard_Integer nbNodes, totalnodes = 0, nbpolygons = 0;
755 for (ex.Init(S, TopAbs_FACE); ex.More(); ex.Next()) {
756 nbface++;
757 TopoDS_Face F = TopoDS::Face(ex.Current());
758 Handle(Poly_Triangulation) Tr = BRep_Tool::Triangulation(F, L);
0d88155b 759
7fd59977 760 if (!Tr.IsNull()) {
761 nbNodes = Tr->NbNodes();
762 const TColgp_Array1OfPnt& Nodes = Tr->Nodes();
0d88155b 763
7fd59977 764 // les noeuds.
765 for (i = 1; i <= nbNodes; i++) {
0d88155b
O		 766 gp_Pnt Pnt = Nodes(i).Transformed(L.Transformation());
767 x = Pnt.X();
768 y = Pnt.Y();
769 z = Pnt.Z();
770 fprintf(outfile, "%s %f %f %f\n", "v", x, y, z);
7fd59977 771 }
0d88155b 772
7fd59977 773 fprintf(outfile, "\n%s %d\n\n", "# number of vertex", nbNodes);
0d88155b
O		 774
775
7fd59977 776 // les normales.
0d88155b 777
7fd59977 778 if (Tr->HasUVNodes()) {
0d88155b
O		 779 const TColgp_Array1OfPnt2d& UVNodes = Tr->UVNodes();
780 BRepAdaptor_Surface BS(F, Standard_False);
781
782 for (i = 1; i <= nbNodes; i++) {
783 U = UVNodes(i).X();
784 V = UVNodes(i).Y();
785
786 BS.D1(U,V,P,D1U,D1V);
9fd2d2c3 787 CSLib::Normal (D1U, D1V, Precision::Angular(), aStatus, Nor);
788 if (aStatus != CSLib_Done) {
0d88155b
O		 789 BS.D2(U,V,P,D1U,D1V,D2U,D2V,D2UV);
790 CSLib::Normal(D1U,D1V,D2U,D2V,D2UV,Precision::Angular(),OK,NStat,Nor);
791 }
792 if (F.Orientation() == TopAbs_REVERSED) Nor.Reverse();
793
794 fprintf(outfile, "%s %f %f %f\n", "vn", Nor.X(), Nor.Y(), Nor.Z());
795 }
796
797 fprintf(outfile, "\n%s %d\n\n", "# number of vertex normals", nbNodes);
7fd59977 798 }
0d88155b 799
7fd59977 800 fprintf(outfile, "%s %d\n", "s", nbface);
0d88155b 801
7fd59977 802 // les triangles.
803 Standard_Integer nbTriangles = Tr->NbTriangles();
804 const Poly_Array1OfTriangle& triangles = Tr->Triangles();
0d88155b
O		 805
806
7fd59977 807 for (i = 1; i <= nbTriangles; i++) {
0d88155b
O		 808 if (F.Orientation() == TopAbs_REVERSED)
809 triangles(i).Get(n1, n3, n2);
810 else
811 triangles(i).Get(n1, n2, n3);
812 k1 = n1+totalnodes;
813 k2 = n2+totalnodes;
814 k3 = n3+totalnodes;
6b467e52 815 fprintf(outfile, "f %d%s%d %d%s%d %d%s%d\n", k1,"//", k1, k2,"//", k2, k3,"//", k3);
7fd59977 816 }
817 nbpolygons += nbTriangles;
818 totalnodes += nbNodes;
0d88155b 819
7fd59977 820 fprintf(outfile, "\n%s %d\n", "# number of smooth groups", nbface);
821 fprintf(outfile, "\n%s %d\n", "# number of polygons", nbpolygons);
0d88155b 822
7fd59977 823 }
824 }
825
826 fclose(outfile);
827
828 return 0;
829}
830
d51c7072
O		 831//=======================================================================
832//function : triedgepoints
833//purpose :
834//=======================================================================
4006ca98 835static Standard_Integer triedgepoints(Draw_Interpretor& di, Standard_Integer nbarg, const char** argv)
d51c7072
O		 836{
837 if( nbarg < 2 )
838 return 1;
7fd59977 839
d51c7072
O		 840 for( Standard_Integer i = 1; i < nbarg; i++ )
841 {
842 TopoDS_Shape aShape = DBRep::Get(argv[i]);
843 if ( aShape.IsNull() )
844 continue;
845
846 Handle(Poly_PolygonOnTriangulation) aPoly;
847 Handle(Poly_Triangulation) aT;
848 TopLoc_Location aLoc;
849 TopTools_MapOfShape anEdgeMap;
850 TopTools_MapIteratorOfMapOfShape it;
851
852 if( aShape.ShapeType() == TopAbs_EDGE )
853 {
854 anEdgeMap.Add( aShape );
855 }
856 else
857 {
858 TopExp_Explorer ex(aShape, TopAbs_EDGE);
859 for(; ex.More(); ex.Next() )
860 anEdgeMap.Add( ex.Current() );
861 }
862
863 if ( anEdgeMap.Extent() == 0 )
864 continue;
865
866 char newname[1024];
867 strcpy(newname,argv[i]);
868 char* p = newname;
869 while (*p != '\0') p++;
870 *p = '_';
871 p++;
872
873 Standard_Integer nbEdge = 1;
874 for(it.Initialize(anEdgeMap); it.More(); it.Next())
875 {
876 BRep_Tool::PolygonOnTriangulation(TopoDS::Edge(it.Key()), aPoly, aT, aLoc);
877 if ( aT.IsNull() || aPoly.IsNull() )
878 continue;
879
880 const TColgp_Array1OfPnt& Nodes = aT->Nodes();
881 const TColStd_Array1OfInteger& Indices = aPoly->Nodes();
882 const Standard_Integer nbnodes = Indices.Length();
883
884 for( Standard_Integer j = 1; j <= nbnodes; j++ )
885 {
886 gp_Pnt P3d = Nodes(Indices(j));
887 if( !aLoc.IsIdentity() )
888 P3d.Transform(aLoc.Transformation());
889
890 if( anEdgeMap.Extent() > 1 )
91322f44 891 Sprintf(p,"%d_%d",nbEdge,j);
d51c7072 892 else
91322f44 893 Sprintf(p,"%d",j);
d51c7072
O		 894 DBRep::Set( newname, BRepBuilderAPI_MakeVertex(P3d) );
895 di.AppendElement(newname);
896 }
897 nbEdge++;
898 }
899 }
900 return 0;
901}
7fd59977 902
7693827d 903//=======================================================================
904//function : correctnormals
905//purpose : Corrects normals in shape triangulation nodes (...)
906//=======================================================================
4006ca98 907static Standard_Integer correctnormals(Draw_Interpretor& theDI,
908 Standard_Integer /*theNArg*/,
909 const char** theArgVal)
7693827d 910{
911 TopoDS_Shape S = DBRep::Get(theArgVal[1]);
912
913 //Use "correctnormals shape"
914
915
916 if(!BRepLib::EnsureNormalConsistency(S))
917 {
918 theDI << "Normals have not been changed!\n";
919 }
920 else
921 {
922 theDI << "Some corrections in source shape have been made!\n";
923 }
924
925 return 0;
926}
927
7fd59977 928//=======================================================================
0d88155b 929void MeshTest::Commands(Draw_Interpretor& theCommands)
7fd59977 930//=======================================================================
931{
932 Draw::Commands(theCommands);
933 BRepTest::AllCommands(theCommands);
934 GeometryTest::AllCommands(theCommands);
935 MeshTest::PluginCommands(theCommands);
936 const char* g;
937
938 g = "Mesh Commands";
0d88155b 939
49cfd13d 940 theCommands.Add("incmesh","Builds triangular mesh for the shape, run w/o args for help",__FILE__, incrementalmesh, g);
b508cbc5 941 theCommands.Add("tessellate","Builds triangular mesh for the surface, run w/o args for help",__FILE__, tessellate, g);
7fd59977 942 theCommands.Add("MemLeakTest","MemLeakTest",__FILE__, MemLeakTest, g);
7fd59977 943
944 theCommands.Add("tri2d", "tri2d facename",__FILE__, tri2d, g);
945 theCommands.Add("trinfo","trinfo name, print triangles information on objects",__FILE__,trianglesinfo,g);
946 theCommands.Add("veriftriangles","veriftriangles name, verif triangles",__FILE__,veriftriangles,g);
947 theCommands.Add("wavefront","wavefront name",__FILE__, wavefront, g);
d51c7072 948 theCommands.Add("triepoints", "triepoints shape1 [shape2 ...]",__FILE__, triedgepoints, g);
7fd59977 949
7693827d 950 theCommands.Add("correctnormals", "correctnormals shape",__FILE__, correctnormals, g);
7fd59977 951}
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