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0024530: TKMesh - remove unused package IntPoly
[occt.git] / src / TopoDSToStep / TopoDSToStep_WireframeBuilder.cxx
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973c2be1 1// Copyright (c) 1999-2014 OPEN CASCADE SAS
b311480e 2//
973c2be1 3// This file is part of Open CASCADE Technology software library.
b311480e 4//
973c2be1 5// This library is free software; you can redistribute it and / or modify it
6// under the terms of the GNU Lesser General Public version 2.1 as published
7// by the Free Software Foundation, with special exception defined in the file
8// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
9// distribution for complete text of the license and disclaimer of any warranty.
b311480e 10//
973c2be1 11// Alternatively, this file may be used under the terms of Open CASCADE
12// commercial license or contractual agreement.
b311480e 13
7fd59977 14//:S4134 abv 10.03.99: working methods moved from package TopoDSToGBWire
15//:j1 modified by abv 22 Oct 98: CSR BUC60401
16// - unused parts of code dropped
17// - fixed trimming of circles and ellipses (radians used instead of degrees)
18//szv#4 S4163
19
20#include <TopoDSToStep_WireframeBuilder.ixx>
21#include <TopoDSToStep_Tool.hxx>
22
23#include <TColgp_Array1OfPnt.hxx>
24#include <TColStd_Array1OfReal.hxx>
25#include <TColStd_Array1OfInteger.hxx>
26#include <TColStd_SequenceOfTransient.hxx>
27#include <MoniTool_DataMapOfShapeTransient.hxx>
28#include <TCollection_HAsciiString.hxx>
29#include <TransferBRep_ShapeMapper.hxx>
30#include <Transfer_FinderProcess.hxx>
31
32#include <Precision.hxx>
33#include <gp_Vec.hxx>
34
35#include <Geom2d_Line.hxx>
36#include <Geom_Surface.hxx>
37#include <Geom_TrimmedCurve.hxx>
38#include <Geom_BSplineCurve.hxx>
39#include <Geom_Line.hxx>
40#include <Geom_Circle.hxx>
41#include <Geom_Ellipse.hxx>
42#include <Geom_Plane.hxx>
43
44#include <Adaptor3d_CurveOnSurface.hxx>
45#include <BRepAdaptor_Curve.hxx>
46#include <BRep_Tool.hxx>
47#include <BRepTools.hxx>
48
49#include <TopoDS.hxx>
50#include <TopoDS_Vertex.hxx>
51#include <TopoDS_Face.hxx>
52#include <TopoDS_Shell.hxx>
53#include <TopoDS_Iterator.hxx>
54#include <TopExp_Explorer.hxx>
55#include <TopLoc_Location.hxx>
56
57#include <StepGeom_CartesianPoint.hxx>
58#include <StepGeom_Curve.hxx>
59#include <StepGeom_SurfaceCurve.hxx>
60#include <StepGeom_SeamCurve.hxx>
61#include <StepGeom_TrimmedCurve.hxx>
62#include <StepGeom_TrimmingSelect.hxx>
63#include <StepGeom_HArray1OfTrimmingSelect.hxx>
64
65#include <GeomToStep_MakeCartesianPoint.hxx>
66#include <GeomToStep_MakeCurve.hxx>
67#include <GeomToStep_MakeLine.hxx>
68
69// ============================================================================
70// Method : TopoDSToStep_Builder::TopoDSToStep_Builder
71// Purpose :
72// ============================================================================
73
b311480e 74TopoDSToStep_WireframeBuilder::TopoDSToStep_WireframeBuilder()
7fd59977 75{
76 done = Standard_False;
77}
78
79// ============================================================================
80// Method : TopoDSToStep_Builder::TopoDSToStep_Builder
81// Purpose :
82// ============================================================================
83
84 TopoDSToStep_WireframeBuilder::TopoDSToStep_WireframeBuilder(const TopoDS_Shape& aShape, TopoDSToStep_Tool& aTool, const Handle(Transfer_FinderProcess)& FP)
85{
86 done = Standard_False;
87 Init(aShape, aTool, FP);
88}
89
90void TopoDSToStep_WireframeBuilder::Init(const TopoDS_Shape& aShape, TopoDSToStep_Tool& /* T */, const Handle(Transfer_FinderProcess)& /* FP */)
91{
92 Handle(TColStd_HSequenceOfTransient) itemList =
93 new TColStd_HSequenceOfTransient();
94 MoniTool_DataMapOfShapeTransient aPmsMap;
95 done = GetTrimmedCurveFromShape(aShape, aPmsMap, itemList);
96 myResult = itemList;
97}
98
99// ============================================================================
100// Method : TopoDSToStep_Builder::Error
101// Purpose :
102// ============================================================================
103
104TopoDSToStep_BuilderError TopoDSToStep_WireframeBuilder::Error() const
105{
106 return myError;
107}
108
109// ============================================================================
110// Method : TopoDSToStep_Builder::Value
111// Purpose :
112// ============================================================================
113
114const Handle(TColStd_HSequenceOfTransient)& TopoDSToStep_WireframeBuilder::Value() const
115{
116 StdFail_NotDone_Raise_if(!done,"");
117 return myResult;
118}
119
120
121// ============================================================================
122//:S4134: abv 10 Mar 99: the methods below moved from package TopoDSToGBWire
123
124#define Nbpt 23
125
126static Handle(StepGeom_TrimmedCurve) MakeTrimmedCurve (const Handle(StepGeom_Curve) &C,
127 const Handle(StepGeom_CartesianPoint) P1,
128 const Handle(StepGeom_CartesianPoint) P2,
129 Standard_Real trim1,
130 Standard_Real trim2,
131 Standard_Boolean sense)
132{
133 Handle(StepGeom_HArray1OfTrimmingSelect) aSTS1 =
134 new StepGeom_HArray1OfTrimmingSelect(1,2);
135 StepGeom_TrimmingSelect tSel;
136 tSel.SetValue(P1);
137 aSTS1->SetValue(1,tSel);
138 tSel.SetParameterValue(trim1);
139 aSTS1->SetValue(2,tSel);
140
141 Handle(StepGeom_HArray1OfTrimmingSelect) aSTS2 =
142 new StepGeom_HArray1OfTrimmingSelect(1,2);
143 tSel.SetValue(P2);
144 aSTS2->SetValue(1,tSel);
145 tSel.SetParameterValue(trim2);
146 aSTS2->SetValue(2,tSel);
147
148 Handle(TCollection_HAsciiString) empty =
149 new TCollection_HAsciiString("");
150 Handle(StepGeom_TrimmedCurve) pmsTC = new StepGeom_TrimmedCurve;
151 pmsTC->Init(empty,C,aSTS1,aSTS2,sense,StepGeom_tpParameter);
152 return pmsTC;
153}
154
155Standard_Boolean TopoDSToStep_WireframeBuilder::
156 GetTrimmedCurveFromEdge(const TopoDS_Edge& theEdge,
157 const TopoDS_Face& aFace,
158 MoniTool_DataMapOfShapeTransient& aMap,
159 Handle(TColStd_HSequenceOfTransient)& curveList) const
160{
161 if (theEdge.Orientation() == TopAbs_INTERNAL ||
162 theEdge.Orientation() == TopAbs_EXTERNAL ) {
163#ifdef DEB
164 cout <<"Warning: TopoDSToStep_WireframeBuilder::GetTrimmedCurveFromEdge: Edge is internal or external; dropped" << endl;
165#endif
166 return Standard_False;
167 }
168 //szv#4:S4163:12Mar99 SGI warns
169 TopoDS_Shape sh = theEdge.Oriented(TopAbs_FORWARD);
170 TopoDS_Edge anEdge = TopoDS::Edge ( sh );
171
172 // resulting curve
173 Handle(StepGeom_Curve) Gpms;
174
175 if ( aMap.IsBound(anEdge)) {
176 Gpms = Handle(StepGeom_Curve)::DownCast ( aMap.Find(anEdge) );
177 if ( Gpms.IsNull() ) return Standard_False;
178//?? curveList->Append(Gpms);
179 return Standard_True;
180 }
181
182 BRepAdaptor_Curve CA ( anEdge );
183
184 // Vertices
185 TopoDS_Vertex Vfirst, Vlast;
186 Handle(StepGeom_CartesianPoint) pmsP1, pmsP2;
187 for (TopoDS_Iterator It(anEdge);It.More();It.Next()) {
188 // Translates the Edge Vertices
189 TopoDS_Vertex V = TopoDS::Vertex(It.Value());
190 gp_Pnt gpP = BRep_Tool::Pnt(V);
191 if ( V.Orientation() == TopAbs_FORWARD ) {
192 Vfirst = V;
193 // 1.point for trimming
194 GeomToStep_MakeCartesianPoint gtpP(gpP);
195 pmsP1 = gtpP.Value();
196 }
197 if ( V.Orientation() == TopAbs_REVERSED ) {
198 Vlast = V;
199 // 2.point for trimming
200 GeomToStep_MakeCartesianPoint gtpP(gpP);
201 pmsP2 = gtpP.Value();
202 }
203 }
204
205 // ---------------------------------------
206 // Translate 3D representation of the Edge
207 // ---------------------------------------
208
209
210 // Handle(Geom_Curve) C = CA.Curve().Curve();
211
212 // UPDATE FMA 26-02-96
213 // General remark : this full code should be deaply reworked
214 // Too many objects are not used !
215
216 Standard_Real First, Last;
217 Handle(Geom_Curve) C = BRep_Tool::Curve(anEdge, First, Last);
218 if ( ! C.IsNull() ) {
219 if (C->IsKind(STANDARD_TYPE(Geom_TrimmedCurve)))
220 C = Handle(Geom_TrimmedCurve)::DownCast(C)->BasisCurve();
221 GeomToStep_MakeCurve gtpC(C);
222 Handle(StepGeom_Curve) pmsC = gtpC.Value();
223
224 // trim the curve
225 Standard_Real trim1 = CA.FirstParameter();
226 Standard_Real trim2 = CA.LastParameter();
227/* //:j1 abv 22 Oct 98: radians are used in the produced STEP file (at least by default)
228 if(C->IsKind(STANDARD_TYPE(Geom_Circle)) ||
229 C->IsKind(STANDARD_TYPE(Geom_Ellipse))) {
c6541a0c 230 Standard_Real fact = 180. / M_PI;
7fd59977 231 trim1 = trim1 * fact;
232 trim2 = trim2 * fact;
233 }
234*/
235 Gpms = MakeTrimmedCurve (pmsC, pmsP1, pmsP2, trim1, trim2, Standard_True );
236// (anEdge.Orientation() == TopAbs_FORWARD));
237 }
238 else {
239
240 // -------------------------
241 // a 3D Curve is constructed
242 // -------------------------
243
244 Standard_Boolean iaplan = Standard_False;
245 if ( ! aFace.IsNull() ) {
246 Standard_Real cf, cl;
247 Handle(Geom2d_Curve) C2d = BRep_Tool::CurveOnSurface(anEdge, aFace, cf, cl);
248 Handle(Geom_Surface) S = BRep_Tool::Surface(aFace);
249 if (S->IsKind(STANDARD_TYPE(Geom_Plane)) &&
250 C2d->IsKind(STANDARD_TYPE(Geom2d_Line))) iaplan = Standard_True;
251 }
252
253 // to be modified : cf and cl are the topological trimming prameter
254 // these are computed after ! (U1 and U2) -> cf and cl instead
255 if (iaplan) {
256 gp_Pnt Pnt1 = CA.Value(CA.FirstParameter()), Pnt2 = CA.Value(CA.LastParameter());
257 gp_Vec V ( Pnt1, Pnt2 );
258 Standard_Real length = V.Magnitude();
259 if ( length >= Precision::Confusion() ) {
260 Handle(Geom_Line) L = new Geom_Line(Pnt1, gp_Dir(V));
261 GeomToStep_MakeLine gtpL(L);
262 Gpms = gtpL.Value();
263 Gpms = MakeTrimmedCurve (gtpL.Value(), pmsP1, pmsP2, 0, length, Standard_True );
264// (anEdge.Orientation() == TopAbs_FORWARD));
265 }
266#ifdef DEB
267 else cout << "Warning: TopoDSToStep_WireframeBuilder::GetTrimmedCurveFromEdge: Null-length curve not mapped" << endl;
268#endif
269 }
270 else {
271 TColgp_Array1OfPnt Points(1,Nbpt);
272 TColStd_Array1OfReal Knots(1,Nbpt);
273 TColStd_Array1OfInteger Mult(1,Nbpt);
274 Standard_Real U1 = CA.FirstParameter();
275 Standard_Real U2 = CA.LastParameter();
276 for ( Standard_Integer i=1; i<=Nbpt; i++ ) {
277 Standard_Real U = U1 + (i-1)*(U2 - U1)/(Nbpt - 1);
278 gp_Pnt P = CA.Value(U);
279 Points.SetValue(i,P);
280 Knots.SetValue(i,U);
281 Mult.SetValue(i,1);
282 }
283 Points.SetValue(1, BRep_Tool::Pnt(Vfirst));
284 Points.SetValue(Nbpt, BRep_Tool::Pnt(Vlast));
285 Mult.SetValue(1,2);
286 Mult.SetValue(Nbpt,2);
287 Handle(Geom_BSplineCurve) Bs =
288 new Geom_BSplineCurve(Points, Knots, Mult, 1);
289 GeomToStep_MakeCurve gtpC(Bs);
290 Gpms = gtpC.Value();
291 }
292 }
293 if( Gpms.IsNull() ) return Standard_False;
294
295 aMap.Bind(anEdge, Gpms);
296 curveList->Append(Gpms);
297 return Standard_True;
298}
299
300
301Standard_Boolean TopoDSToStep_WireframeBuilder::
302 GetTrimmedCurveFromFace(const TopoDS_Face& aFace,
303 MoniTool_DataMapOfShapeTransient& aMap,
304 Handle(TColStd_HSequenceOfTransient)& aCurveList) const
305{
306 TopoDS_Shape curShape;
307 TopoDS_Edge curEdge;
308 TopExp_Explorer exp;
309 Standard_Boolean result = Standard_False; //szv#4:S4163:12Mar99 `done` hid one from this, initialisation needed
310
311 for (exp.Init(aFace,TopAbs_EDGE); exp.More(); exp.Next()){
312 curShape = exp.Current();
313 curEdge = TopoDS::Edge(curShape);
314 if (GetTrimmedCurveFromEdge(curEdge, aFace, aMap, aCurveList)) result = Standard_True;
315 }
316 return result;
317}
318
319Standard_Boolean TopoDSToStep_WireframeBuilder::
320 GetTrimmedCurveFromShape(const TopoDS_Shape& aShape,
321 MoniTool_DataMapOfShapeTransient& aMap,
322 Handle(TColStd_HSequenceOfTransient)& aCurveList) const
323{
324 TopoDS_Iterator It;
325 Standard_Boolean result = Standard_False; //szv#4:S4163:12Mar99 `done` hid one from this, initialisation needed
326
327 //szv#4:S4163:12Mar99 optimized
328 switch (aShape.ShapeType()) {
329 case TopAbs_EDGE : {
330 const TopoDS_Edge& curEdge = TopoDS::Edge(aShape);
331 TopoDS_Face nulFace;
332 result = GetTrimmedCurveFromEdge(curEdge, nulFace, aMap, aCurveList);
333 break;
334 }
335 case TopAbs_WIRE : {
336 TopoDS_Face nulFace;
337 TopoDS_Shape curShape;
338 TopoDS_Edge curEdge;
339 TopExp_Explorer exp;
340
341 for (exp.Init(aShape,TopAbs_EDGE); exp.More(); exp.Next()){
342 curShape = exp.Current();
343 curEdge = TopoDS::Edge(curShape);
344 if (GetTrimmedCurveFromEdge(curEdge, nulFace, aMap, aCurveList)) result = Standard_True;
345 }
346 break;
347 }
348 case TopAbs_FACE : {
349 const TopoDS_Face& curFace = TopoDS::Face(aShape);
350 result = GetTrimmedCurveFromFace(curFace, aMap, aCurveList);
351 break;
352 }
353 case TopAbs_SHELL : {
354 TopoDS_Shell Sh = TopoDS::Shell(aShape);
355 It.Initialize(Sh);
356 for (;It.More();It.Next()) {
357 TopoDS_Face curFace = TopoDS::Face(It.Value());
358 if (GetTrimmedCurveFromFace(curFace, aMap, aCurveList)) result = Standard_True;
359#ifdef DEBUG
360 if(!result) {
361 cout << "ERROR extracting trimmedCurve from Face" << endl;
362 //BRepTools::Dump(curFace,cout); cout<<endl;
363 }
364#endif
365 }
366 break;
367 }
368 case TopAbs_SOLID : {
369 It.Initialize(aShape);
370 for (;It.More();It.Next()) {
371 if (It.Value().ShapeType() == TopAbs_SHELL) {
372 if (GetTrimmedCurveFromShape(It.Value(), aMap, aCurveList)) result = Standard_True;
373 }
374 }
375 break;
376 }
377 case TopAbs_COMPOUND : {
378 It.Initialize(aShape);
379 for (;It.More();It.Next()) {
380/* if ((It.Value().ShapeType() == TopAbs_SHELL) ||
381 (It.Value().ShapeType() == TopAbs_COMPOUND)) {
382 result = GetTrimmedCurveFromShape(It.Value(), aMap, aCurveList);
383 break;
384 }
385 else if (It.Value().ShapeType() == TopAbs_FACE) {
386 result = GetTrimmedCurveFromFace(TopoDS::Face(It.Value()), aMap, aCurveList);
387 break;
388 } */
389 if (GetTrimmedCurveFromShape(It.Value(), aMap, aCurveList)) result = Standard_True;
390 }
391 break;
392 }
393 default : break;
394 }
395 return result;
396}
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