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7fd59977 | 1 | // File: ShapeCustom_BSplineRestriction.cxx |
2 | // Created: Fri Jun 18 12:02:57 1999 | |
3 | // Author: Galina Koulikova | |
4 | // <gka@zamox.nnov.matra-dtv.fr> | |
5 | ||
6 | ||
7 | #include <ShapeAnalysis_Curve.hxx> | |
8 | #include <ShapeCustom_BSplineRestriction.ixx> | |
9 | #include <Geom_BSplineSurface.hxx> | |
10 | #include <GeomConvert_ApproxSurface.hxx> | |
11 | #include <Geom2dConvert_ApproxCurve.hxx> | |
12 | #include <GeomConvert_ApproxCurve.hxx> | |
13 | #include <BRepTools_Modifier.hxx> | |
14 | #include <BRep_Tool.hxx> | |
15 | #include <Geom_TrimmedCurve.hxx> | |
16 | #include <Geom_OffsetCurve.hxx> | |
17 | #include <Geom2d_OffsetCurve.hxx> | |
18 | #include <Geom2d_TrimmedCurve.hxx> | |
19 | #include <Geom_SurfaceOfRevolution.hxx> | |
20 | #include <Geom_SurfaceOfLinearExtrusion.hxx> | |
21 | #include <Geom_RectangularTrimmedSurface.hxx> | |
22 | #include <Geom_OffsetSurface.hxx> | |
23 | #include <BRep_Builder.hxx> | |
24 | #include <gp_Ax1.hxx> | |
25 | #include <TopoDS.hxx> | |
26 | #include <Standard_Failure.hxx> | |
27 | #include <Standard_ErrorHandler.hxx> | |
28 | #include <Geom_BezierSurface.hxx> | |
29 | #include <Geom_BezierCurve.hxx> | |
30 | #include <Geom2d_BezierCurve.hxx> | |
31 | #include <Geom2d_BSplineCurve.hxx> | |
32 | #include <Geom_BSplineCurve.hxx> | |
33 | #include <BRep_TEdge.hxx> | |
34 | #include <BRep_ListIteratorOfListOfCurveRepresentation.hxx> | |
35 | #include <BRep_ListIteratorOfListOfCurveRepresentation.hxx> | |
36 | #include <BRep_ListIteratorOfListOfCurveRepresentation.hxx> | |
37 | #include <BRep_GCurve.hxx> | |
38 | #include <TColgp_Array1OfPnt.hxx> | |
39 | #include <TColgp_Array1OfPnt.hxx> | |
40 | #include <Precision.hxx> | |
41 | #include <TColgp_HArray1OfPnt.hxx> | |
42 | #include <TColgp_HArray1OfPnt2d.hxx> | |
43 | #include <GeomAdaptor_Surface.hxx> | |
44 | #include <BRepTools.hxx> | |
45 | #include <TColgp_Array1OfPnt.hxx> | |
46 | #include <TColStd_Array1OfReal.hxx> | |
47 | #include <TColStd_Array1OfInteger.hxx> | |
48 | #include <TColgp_Array2OfPnt.hxx> | |
49 | #include <TColStd_Array2OfReal.hxx> | |
50 | #include <ShapeConstruct.hxx> | |
51 | #include <Geom_Plane.hxx> | |
52 | #include <Geom2d_Line.hxx> | |
53 | #include <Geom2d_Conic.hxx> | |
54 | #include <Geom2dConvert.hxx> | |
55 | #include <Geom_Line.hxx> | |
56 | #include <Geom_Conic.hxx> | |
57 | #include <GeomConvert.hxx> | |
58 | #include <Geom_ConicalSurface.hxx> | |
59 | #include <Geom_SphericalSurface.hxx> | |
60 | #include <Geom_CylindricalSurface.hxx> | |
61 | #include <Geom_ToroidalSurface.hxx> | |
62 | #include <ShapeAnalysis.hxx> | |
63 | ||
64 | static GeomAbs_Shape IntegerToGeomAbsShape(const Standard_Integer i) | |
65 | { | |
66 | GeomAbs_Shape result = GeomAbs_C0; | |
67 | switch (i) { | |
68 | case 0: result = GeomAbs_C0; break; | |
69 | case 1: result = GeomAbs_C1; break; | |
70 | case 2: result = GeomAbs_C2; break; | |
71 | case 3: result = GeomAbs_C3; break; | |
72 | default : result = GeomAbs_CN; break; | |
73 | } | |
74 | return result; | |
75 | } | |
76 | ||
77 | static Standard_Integer ContToInteger( const GeomAbs_Shape Cont) | |
78 | { | |
79 | Standard_Integer result =0; | |
80 | switch(Cont) { | |
81 | case GeomAbs_C0: | |
82 | case GeomAbs_G1: result = 0; break; | |
83 | case GeomAbs_C1: | |
84 | case GeomAbs_G2: result = 1; break; | |
85 | case GeomAbs_C2: result = 2; break; | |
86 | case GeomAbs_C3: result = 3; break; | |
87 | default : result = 4; break; | |
88 | } | |
89 | return result; | |
90 | } | |
91 | ||
92 | static Standard_Boolean IsConvertCurve3d(const Handle(Geom_Curve)& aCurve, | |
93 | Standard_Integer Degree, | |
94 | Standard_Integer NbSeg, | |
95 | Standard_Boolean myRational, | |
96 | const Handle(ShapeCustom_RestrictionParameters)& aParameters) | |
97 | { | |
98 | if(aCurve.IsNull()) return Standard_False; | |
99 | if(aParameters->ConvertCurve3d()) return Standard_True; | |
100 | if (aCurve->IsKind(STANDARD_TYPE(Geom_TrimmedCurve))) { | |
101 | Handle(Geom_TrimmedCurve) tmp = Handle(Geom_TrimmedCurve)::DownCast (aCurve); | |
102 | Handle(Geom_Curve) BasCurve = tmp->BasisCurve(); | |
103 | return IsConvertCurve3d(BasCurve,Degree,NbSeg,myRational,aParameters); | |
104 | } | |
105 | ||
106 | if (aCurve->IsKind(STANDARD_TYPE(Geom_OffsetCurve))) { | |
107 | if(aParameters->ConvertOffsetCurv3d()) return Standard_True; | |
108 | Handle(Geom_OffsetCurve) tmp = Handle(Geom_OffsetCurve)::DownCast (aCurve); | |
109 | Handle(Geom_Curve) BasCurve = tmp->BasisCurve(); | |
110 | return IsConvertCurve3d(BasCurve,Degree,NbSeg,myRational,aParameters); | |
111 | } | |
112 | if (aCurve->IsKind(STANDARD_TYPE(Geom_BSplineCurve))) { | |
113 | Handle(Geom_BSplineCurve) BsC = Handle(Geom_BSplineCurve)::DownCast(aCurve); | |
114 | if( BsC->Degree() > Degree || ((BsC->NbKnots() - 1) >= NbSeg)) | |
115 | return Standard_True; | |
116 | if(myRational && BsC->IsRational()) | |
117 | return Standard_True; | |
118 | else return Standard_False; | |
119 | } | |
120 | if (aCurve->IsKind(STANDARD_TYPE(Geom_BezierCurve)) && | |
121 | (Handle(Geom_BezierCurve)::DownCast(aCurve)->Degree() > Degree || | |
122 | (myRational && Handle(Geom_BezierCurve)::DownCast(aCurve)->IsRational()))) | |
123 | return Standard_True; | |
124 | // else return Standard_False; | |
125 | return Standard_False; | |
126 | } | |
127 | ||
128 | static Standard_Boolean IsConvertSurface(const Handle(Geom_Surface)& aSurface, | |
129 | const Standard_Integer Degree, | |
130 | const Standard_Integer NbSeg, | |
131 | const Standard_Boolean myRational, | |
132 | const Handle(ShapeCustom_RestrictionParameters)& aParameters) | |
133 | { | |
134 | if (aSurface.IsNull()) return Standard_False; | |
135 | if (aSurface->IsKind(STANDARD_TYPE(Geom_Plane))) { | |
136 | return aParameters->ConvertPlane(); | |
137 | } | |
138 | else if(aSurface->IsKind(STANDARD_TYPE(Geom_ConicalSurface))) | |
139 | return aParameters->ConvertConicalSurf(); | |
140 | else if(aSurface->IsKind(STANDARD_TYPE(Geom_SphericalSurface))) | |
141 | return aParameters->ConvertSphericalSurf(); | |
142 | else if(aSurface->IsKind(STANDARD_TYPE(Geom_CylindricalSurface))) | |
143 | return aParameters->ConvertCylindricalSurf(); | |
144 | else if(aSurface->IsKind(STANDARD_TYPE(Geom_ToroidalSurface))) | |
145 | return aParameters->ConvertToroidalSurf(); | |
146 | ||
147 | //else if(aSurface->IsKind(STANDARD_TYPE(Geom_ElementarySurface))) { | |
148 | // return aParameters->ConvertElementarySurf(); | |
149 | // } | |
150 | if (aSurface->IsKind(STANDARD_TYPE(Geom_SweptSurface))) { | |
151 | if(aSurface->IsKind(STANDARD_TYPE(Geom_SurfaceOfRevolution)) && aParameters->ConvertRevolutionSurf()) | |
152 | return Standard_True; | |
153 | if(aSurface->IsKind(STANDARD_TYPE(Geom_SurfaceOfLinearExtrusion)) && aParameters->ConvertExtrusionSurf()) | |
154 | return Standard_True; | |
155 | Handle(Geom_SweptSurface) aSurf = Handle(Geom_SweptSurface)::DownCast(aSurface); | |
156 | Handle(Geom_Curve) BasCurve = aSurf->BasisCurve(); | |
157 | return IsConvertCurve3d(BasCurve,Degree,NbSeg,myRational,aParameters); | |
158 | } | |
159 | if (aSurface->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface))) { | |
160 | Handle(Geom_RectangularTrimmedSurface) aSurf = Handle(Geom_RectangularTrimmedSurface)::DownCast(aSurface); | |
161 | Handle(Geom_Surface) theSurf = aSurf->BasisSurface(); | |
162 | return IsConvertSurface(theSurf,Degree,NbSeg,myRational,aParameters); | |
163 | } | |
164 | if(aSurface->IsKind(STANDARD_TYPE(Geom_OffsetSurface))) { | |
165 | if(aParameters->ConvertOffsetSurf()) return Standard_True; | |
166 | Handle(Geom_OffsetSurface) aSurf = Handle(Geom_OffsetSurface)::DownCast(aSurface); | |
167 | Handle(Geom_Surface) theSurf = aSurf->BasisSurface(); | |
168 | return IsConvertSurface(theSurf,Degree,NbSeg,myRational,aParameters); | |
169 | } | |
170 | if (aSurface->IsKind(STANDARD_TYPE(Geom_BSplineSurface))) { | |
171 | ||
172 | Handle(Geom_BSplineSurface) theSurf = Handle(Geom_BSplineSurface)::DownCast(aSurface); | |
173 | if(theSurf->UDegree() > Degree || theSurf->VDegree() > Degree) | |
174 | return Standard_True; | |
175 | if((theSurf->NbUKnots()-1) * (theSurf->NbVKnots()-1) > NbSeg) | |
176 | return Standard_True; | |
177 | if(myRational && (theSurf->IsURational() || theSurf->IsVRational())) | |
178 | return Standard_True; | |
179 | return Standard_False; | |
180 | } | |
181 | ||
182 | if (aSurface->IsKind(STANDARD_TYPE(Geom_BezierSurface))) { | |
183 | if(aParameters->ConvertBezierSurf()) | |
184 | return Standard_True; | |
185 | Handle(Geom_BezierSurface) theSurf = Handle(Geom_BezierSurface)::DownCast(aSurface); | |
186 | if(theSurf->UDegree() > Degree || theSurf->VDegree() > Degree) | |
187 | return Standard_True; | |
188 | if( myRational && (theSurf->IsURational() || theSurf->IsVRational())) | |
189 | return Standard_True; | |
190 | return Standard_False; | |
191 | } | |
192 | return Standard_False; | |
193 | } | |
194 | ||
195 | static Standard_Boolean IsConvertCurve2d(const Handle(Geom2d_Curve)& aCurve, | |
196 | Standard_Integer Degree, | |
197 | Standard_Integer NbSeg, | |
198 | Standard_Boolean myRational, | |
199 | const Handle(ShapeCustom_RestrictionParameters)& aParameters) | |
200 | { | |
201 | if (aCurve.IsNull()) return Standard_False; | |
202 | if (aParameters->ConvertCurve2d()) return Standard_True; | |
203 | if (aCurve->IsKind(STANDARD_TYPE(Geom2d_TrimmedCurve))) { | |
204 | Handle(Geom2d_TrimmedCurve) tmp = Handle(Geom2d_TrimmedCurve)::DownCast (aCurve); | |
205 | Handle(Geom2d_Curve) BasCurve = tmp->BasisCurve(); | |
206 | return IsConvertCurve2d(BasCurve,Degree,NbSeg,myRational,aParameters); | |
207 | } | |
208 | if (aCurve->IsKind(STANDARD_TYPE(Geom2d_OffsetCurve))) { | |
209 | if(aParameters->ConvertOffsetCurv2d()) return Standard_True; | |
210 | Handle(Geom2d_OffsetCurve) tmp = Handle(Geom2d_OffsetCurve)::DownCast (aCurve); | |
211 | Handle(Geom2d_Curve) BasCurve = tmp->BasisCurve(); | |
212 | return IsConvertCurve2d(BasCurve,Degree,NbSeg,myRational,aParameters); | |
213 | } | |
214 | if (aCurve->IsKind(STANDARD_TYPE(Geom2d_BSplineCurve)) && | |
215 | ((Handle(Geom2d_BSplineCurve)::DownCast(aCurve)->Degree() > Degree || | |
216 | ((Handle(Geom2d_BSplineCurve)::DownCast(aCurve)->NbKnots() -1) > NbSeg )) || | |
217 | (myRational && Handle(Geom2d_BSplineCurve)::DownCast(aCurve)->IsRational()))) | |
218 | return Standard_True; | |
219 | if (aCurve->IsKind(STANDARD_TYPE(Geom2d_BezierCurve)) && | |
220 | ((Handle(Geom2d_BezierCurve)::DownCast(aCurve)->Degree() > Degree) || | |
221 | (myRational && Handle(Geom2d_BezierCurve)::DownCast(aCurve)->IsRational()))) | |
222 | return Standard_True; | |
223 | // else return Standard_False; | |
224 | return Standard_False; | |
225 | } | |
226 | ||
227 | //======================================================================= | |
228 | //function : ShapeCustom_BSplineRestriction | |
229 | //purpose : | |
230 | //======================================================================= | |
231 | ||
232 | ShapeCustom_BSplineRestriction::ShapeCustom_BSplineRestriction() | |
233 | { | |
234 | myApproxSurfaceFlag = Standard_True; | |
235 | myApproxCurve3dFlag = Standard_True; | |
236 | myApproxCurve2dFlag = Standard_True; | |
237 | myTol3d = 0.01; | |
238 | myTol2d = 1E-6; | |
239 | myContinuity3d = GeomAbs_C1; | |
240 | myContinuity2d =GeomAbs_C2 ; | |
241 | myMaxDegree = 9; | |
242 | myNbMaxSeg = 10000; | |
243 | mySurfaceError = Precision::Confusion(); | |
244 | myCurve3dError = Precision::Confusion(); | |
245 | myCurve2dError = Precision::PConfusion(); | |
246 | myNbOfSpan = 0; | |
247 | myConvert = Standard_False; | |
248 | myDeg =Standard_True; | |
249 | myRational = Standard_False; | |
250 | myParameters = new ShapeCustom_RestrictionParameters; | |
251 | ||
252 | } | |
253 | ||
254 | ShapeCustom_BSplineRestriction::ShapeCustom_BSplineRestriction(const Standard_Boolean anApproxSurfaceFlag, | |
255 | const Standard_Boolean anApproxCurve3dFlag, | |
256 | const Standard_Boolean anApproxCurve2dFlag, | |
257 | const Standard_Real aTol3d, | |
258 | const Standard_Real aTol2d, | |
259 | const GeomAbs_Shape aContinuity3d, | |
260 | const GeomAbs_Shape aContinuity2d, | |
261 | const Standard_Integer aMaxDegree, | |
262 | const Standard_Integer aNbMaxSeg, | |
263 | const Standard_Boolean Deg, | |
264 | const Standard_Boolean Rational) | |
265 | { | |
266 | myApproxSurfaceFlag = anApproxSurfaceFlag; | |
267 | myApproxCurve3dFlag = anApproxCurve3dFlag; | |
268 | myApproxCurve2dFlag = anApproxCurve2dFlag; | |
269 | myTol3d = aTol3d; | |
270 | myTol2d = aTol2d; | |
271 | myMaxDegree = aMaxDegree; | |
272 | myContinuity3d = aContinuity3d; | |
273 | myContinuity2d = aContinuity2d; | |
274 | myNbMaxSeg = aNbMaxSeg; | |
275 | mySurfaceError = Precision::Confusion(); | |
276 | myCurve3dError = Precision::Confusion(); | |
277 | myCurve2dError = Precision::PConfusion(); | |
278 | myNbOfSpan = 0; | |
279 | myConvert = Standard_False; | |
280 | myDeg = Deg; | |
281 | myRational = Rational; | |
282 | myParameters = new ShapeCustom_RestrictionParameters; | |
283 | ||
284 | } | |
285 | ||
286 | ShapeCustom_BSplineRestriction::ShapeCustom_BSplineRestriction(const Standard_Boolean anApproxSurfaceFlag, | |
287 | const Standard_Boolean anApproxCurve3dFlag, | |
288 | const Standard_Boolean anApproxCurve2dFlag, | |
289 | const Standard_Real aTol3d, | |
290 | const Standard_Real aTol2d, | |
291 | const GeomAbs_Shape aContinuity3d, | |
292 | const GeomAbs_Shape aContinuity2d, | |
293 | const Standard_Integer aMaxDegree, | |
294 | const Standard_Integer aNbMaxSeg, | |
295 | const Standard_Boolean Deg, | |
296 | const Standard_Boolean Rational, | |
297 | const Handle(ShapeCustom_RestrictionParameters)& aModes) | |
298 | { | |
299 | myApproxSurfaceFlag = anApproxSurfaceFlag; | |
300 | myApproxCurve3dFlag = anApproxCurve3dFlag; | |
301 | myApproxCurve2dFlag = anApproxCurve2dFlag; | |
302 | myTol3d = aTol3d; | |
303 | myTol2d = aTol2d; | |
304 | myMaxDegree = aMaxDegree; | |
305 | myContinuity3d = aContinuity3d; | |
306 | myContinuity2d = aContinuity2d; | |
307 | myNbMaxSeg = aNbMaxSeg; | |
308 | mySurfaceError = Precision::Confusion(); | |
309 | myCurve3dError = Precision::Confusion(); | |
310 | myCurve2dError = Precision::PConfusion(); | |
311 | myNbOfSpan = 0; | |
312 | myConvert = Standard_False; | |
313 | myDeg = Deg; | |
314 | myRational = Rational; | |
315 | myParameters = aModes; | |
316 | ||
317 | } | |
318 | ||
319 | //======================================================================= | |
320 | //function : NewSurface | |
321 | //purpose : | |
322 | //======================================================================= | |
323 | ||
324 | Standard_Boolean ShapeCustom_BSplineRestriction::NewSurface(const TopoDS_Face& F, | |
325 | Handle(Geom_Surface)& S, | |
326 | TopLoc_Location& L, | |
327 | Standard_Real& Tol, | |
328 | Standard_Boolean& RevWires, | |
329 | Standard_Boolean& RevFace) | |
330 | { | |
331 | if ( ! myApproxSurfaceFlag ) | |
332 | return Standard_False; | |
333 | RevWires = Standard_False; | |
334 | RevFace = Standard_False; | |
335 | myConvert = Standard_False; | |
336 | Handle(Geom_Surface) aSurface = BRep_Tool::Surface(F,L); | |
337 | if(aSurface.IsNull()) return Standard_False; | |
338 | Standard_Boolean IsOf = Standard_True; | |
339 | if(myParameters->ConvertOffsetSurf()) IsOf = Standard_False; | |
340 | Standard_Real UF,UL,VF,VL; | |
341 | aSurface->Bounds(UF,UL,VF,VL); | |
342 | Standard_Real Umin, Umax, Vmin, Vmax; | |
343 | BRepTools::UVBounds(F,Umin, Umax, Vmin, Vmax); | |
344 | if(myParameters->SegmentSurfaceMode()) { | |
345 | UF = Umin; UL = Umax; | |
346 | VF = Vmin; VL = Vmax; | |
347 | } | |
348 | else { | |
349 | if(Precision::IsInfinite(UF) || Precision::IsInfinite(UL)) { | |
350 | UF = Umin; | |
351 | UL = Umax; | |
352 | } | |
353 | if(Precision::IsInfinite(VF) || Precision::IsInfinite(VL)) { | |
354 | VF = Vmin; | |
355 | VL = Vmax; | |
356 | } | |
357 | } | |
358 | ||
359 | Standard_Boolean IsConv = ConvertSurface(aSurface,S,UF,UL,VF,VL,IsOf); | |
360 | Tol = Precision::Confusion();//mySurfaceError; | |
361 | return IsConv; | |
362 | } | |
363 | ||
364 | //======================================================================= | |
365 | //function : ConvertSurface | |
366 | //purpose : | |
367 | //======================================================================= | |
368 | ||
369 | static void ConvertExtrusion(const Handle(Geom_Curve)& C,/*const gp_Dir& direction,*/ | |
370 | gp_Trsf& shiftF,gp_Trsf& shiftL, | |
371 | const Standard_Real VF,const Standard_Real VL, | |
372 | Handle(Geom_Surface)& bspline) | |
373 | { | |
374 | Handle(Geom_BSplineCurve) bspl = Handle(Geom_BSplineCurve)::DownCast(C); | |
375 | Standard_Integer nbPoles = bspl->NbPoles(); | |
376 | TColgp_Array1OfPnt poles(1,nbPoles); | |
377 | TColStd_Array1OfReal weights(1,nbPoles); | |
378 | Standard_Integer nbKnots = bspl->NbKnots(); | |
379 | TColStd_Array1OfReal knots(1,nbKnots); | |
380 | TColStd_Array1OfInteger mults(1,nbKnots); | |
381 | ||
382 | bspl->Poles(poles); | |
383 | bspl->Knots(knots); | |
384 | bspl->Multiplicities(mults); | |
385 | bspl->Weights(weights); | |
386 | ||
387 | TColgp_Array2OfPnt resPoles(1,nbPoles,1,2); | |
388 | TColStd_Array2OfReal resWeigth(1,nbPoles,1,2); | |
389 | for(Standard_Integer j = 1; j <= nbPoles; j++) { | |
390 | resPoles(j,1) = poles(j).Transformed(shiftF); | |
391 | resPoles(j,2) = poles(j).Transformed(shiftL); | |
392 | resWeigth(j,1)= weights(j); | |
393 | resWeigth(j,2)= weights(j); | |
394 | } | |
395 | ||
396 | TColStd_Array1OfReal vknots(1,2); | |
397 | TColStd_Array1OfInteger vmults(1,2); | |
398 | vknots(1) = VF; | |
399 | vknots(2) = VL; | |
400 | vmults(1) = vmults(2) = 2; | |
401 | ||
402 | bspline = new Geom_BSplineSurface(resPoles, resWeigth, knots, vknots, mults, vmults, | |
403 | bspl->Degree(),1,bspl->IsPeriodic(),Standard_False); | |
404 | } | |
405 | ||
406 | ||
407 | Standard_Boolean ShapeCustom_BSplineRestriction::ConvertSurface(const Handle(Geom_Surface)& aSurface, | |
408 | Handle(Geom_Surface)& S, | |
409 | const Standard_Real UF, | |
410 | const Standard_Real UL, | |
411 | const Standard_Real VF, | |
412 | const Standard_Real VL, | |
413 | const Standard_Boolean IsOf) | |
414 | { | |
415 | if(!IsConvertSurface(aSurface,myMaxDegree,myNbMaxSeg,myRational,myParameters)) | |
416 | return Standard_False; | |
417 | ||
418 | Handle(Geom_Surface) aSurf = aSurface; | |
419 | if (aSurf->IsKind(STANDARD_TYPE(Geom_Plane)) && myParameters->ConvertPlane()) { | |
420 | Handle(Geom_Plane) pln = Handle(Geom_Plane)::DownCast(aSurf); | |
421 | TColgp_Array2OfPnt poles(1,2,1,2); | |
422 | TColStd_Array1OfReal uknots(1,2); | |
423 | TColStd_Array1OfInteger umults(1,2); | |
424 | TColStd_Array1OfReal vknots(1,2); | |
425 | TColStd_Array1OfInteger vmults(1,2); | |
426 | ||
427 | poles(1,1) = pln->Value(UF,VF); poles(1,2) = pln->Value(UF,VL); | |
428 | poles(2,1) = pln->Value(UL,VF); poles(2,2) = pln->Value(UL,VL); | |
429 | uknots(1) = UF; uknots(2) = UL; | |
430 | vknots(1) = VF; vknots(2) = VL; | |
431 | umults(1) = umults(2) = vmults(1) = vmults(2) = 2; | |
432 | S = new Geom_BSplineSurface(poles, uknots, vknots, umults, vmults, 1, 1, Standard_False, Standard_False); | |
433 | return Standard_True; | |
434 | } | |
435 | if (aSurf->IsKind(STANDARD_TYPE(Geom_SurfaceOfRevolution))) { | |
436 | Handle(Geom_SurfaceOfRevolution) Surface = Handle(Geom_SurfaceOfRevolution)::DownCast(aSurf); | |
437 | Handle(Geom_Curve) BasCurve = Surface->BasisCurve(); | |
438 | Handle(Geom_Curve) ResCurve; | |
439 | Standard_Real TolS = Precision::Confusion(); | |
440 | if(myParameters->ConvertRevolutionSurf()) { | |
441 | if(BasCurve->IsKind(STANDARD_TYPE(Geom_OffsetCurve))) { | |
442 | GeomAbs_Shape cnt = BasCurve->Continuity(); | |
443 | cnt = (cnt > GeomAbs_C2 ? GeomAbs_C2: cnt); | |
444 | if(ConvertCurve(BasCurve,ResCurve,Standard_False,Max(VF,BasCurve->FirstParameter()),Min(VL,BasCurve->LastParameter()),TolS,Standard_False)) { | |
445 | Handle(Geom_SurfaceOfRevolution) newRevol = new Geom_SurfaceOfRevolution(ResCurve,Surface->Axis()); | |
446 | aSurf = newRevol; | |
447 | #ifdef DEB | |
448 | cout <<" Revolution on offset converted" << endl; | |
449 | #endif | |
450 | } | |
451 | } | |
452 | ||
453 | } | |
454 | else { | |
455 | if(ConvertCurve(BasCurve,ResCurve,Standard_False,Max(VF,BasCurve->FirstParameter()),Min(VL,BasCurve->LastParameter()),TolS,IsOf)) { | |
456 | S = new Geom_SurfaceOfRevolution(ResCurve,Surface->Axis()); | |
457 | return Standard_True; | |
458 | } | |
459 | else | |
460 | return Standard_False; | |
461 | } | |
462 | } | |
463 | if (aSurf->IsKind(STANDARD_TYPE(Geom_SurfaceOfLinearExtrusion))) { | |
464 | Handle(Geom_SurfaceOfLinearExtrusion) Surface = Handle(Geom_SurfaceOfLinearExtrusion)::DownCast(aSurf); | |
465 | Handle(Geom_Curve) BasCurve = Surface->BasisCurve(); | |
466 | Handle(Geom_Curve) ResCurve; | |
467 | Standard_Real TolS = Precision::Confusion(); | |
468 | if(myParameters->ConvertExtrusionSurf()) { | |
469 | GeomAbs_Shape cnt = Surface->Continuity(); | |
470 | cnt = (cnt > GeomAbs_C2 ? GeomAbs_C2: cnt); | |
471 | Handle(Geom_BSplineCurve) bspl = ShapeConstruct::ConvertCurveToBSpline(BasCurve, UF, UL, TolS, cnt, myNbMaxSeg, myMaxDegree); | |
472 | BasCurve = bspl; | |
473 | ConvertCurve(BasCurve,ResCurve,Standard_True,Max(UF,BasCurve->FirstParameter()),Min(UL,BasCurve->LastParameter()),TolS,IsOf); | |
474 | gp_Trsf shiftF,shiftL; | |
475 | shiftF.SetTranslation(Surface->Value(UF,0),Surface->Value(UF,VF)); | |
476 | shiftL.SetTranslation(Surface->Value(UF,0),Surface->Value(UF,VL)); | |
477 | ConvertExtrusion(ResCurve,/*Surface->Direction(),*/shiftF,shiftL,VF,VL,S); | |
478 | return Standard_True; | |
479 | } | |
480 | else { | |
481 | if(ConvertCurve(BasCurve,ResCurve,Standard_False,Max(UF,BasCurve->FirstParameter()),Min(UL,BasCurve->LastParameter()),TolS,IsOf)) { | |
482 | S = new Geom_SurfaceOfLinearExtrusion(ResCurve,Surface->Direction()); | |
483 | return Standard_True; | |
484 | } | |
485 | else | |
486 | return Standard_False; | |
487 | } | |
488 | } | |
489 | if (aSurf->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface))) { | |
490 | Handle(Geom_RectangularTrimmedSurface) tmp = Handle(Geom_RectangularTrimmedSurface):: | |
491 | DownCast (aSurf); | |
492 | Standard_Real U1,U2,V1,V2; | |
493 | tmp->Bounds(U1,U2,V1,V2); | |
494 | Handle(Geom_Surface) theSurf = tmp->BasisSurface(); | |
495 | Handle(Geom_Surface) ResSurface; | |
496 | if(ConvertSurface(theSurf,ResSurface,U1,U2,V1,V2,IsOf)) { | |
497 | //S = new Geom_RectangularTrimmedSurface(ResSurface,U1,U2,V1,V2); | |
498 | S = ResSurface; | |
499 | return Standard_True; | |
500 | } | |
501 | else | |
502 | return Standard_False; | |
503 | ||
504 | } | |
505 | if (aSurf->IsKind(STANDARD_TYPE(Geom_OffsetSurface)) && IsOf) { | |
506 | Handle(Geom_OffsetSurface) tmp = Handle(Geom_OffsetSurface)::DownCast (aSurf); | |
507 | Handle(Geom_Surface) theSurf = tmp->BasisSurface(); | |
508 | Handle(Geom_Surface) ResSurface; | |
509 | if(ConvertSurface(theSurf,ResSurface,UF,UL,VF,VL)) { | |
510 | if(ResSurface->Continuity() != GeomAbs_C0) { | |
511 | S = new Geom_OffsetSurface(ResSurface,tmp->Offset()); | |
512 | return Standard_True; | |
513 | } | |
514 | else if(ConvertSurface(aSurf,S,UF,UL,VF,VL,Standard_False)) | |
515 | return Standard_True; | |
516 | else return Standard_False; | |
517 | } | |
518 | else | |
519 | return Standard_False; | |
520 | ||
521 | } | |
522 | if (aSurf->IsKind(STANDARD_TYPE(Geom_BezierSurface)) && myParameters->ConvertBezierSurf()) { | |
523 | Handle(Geom_BezierSurface) bezier = Handle(Geom_BezierSurface)::DownCast(aSurf); | |
524 | Standard_Integer nbUPoles = bezier->NbUPoles(); | |
525 | Standard_Integer nbVPoles = bezier->NbVPoles(); | |
526 | Standard_Integer uDegree = bezier->UDegree(); | |
527 | Standard_Integer vDegree = bezier->VDegree(); | |
528 | TColgp_Array2OfPnt aPoles(1,nbUPoles,1,nbVPoles); | |
529 | TColStd_Array2OfReal aWeights(1,nbUPoles,1,nbVPoles); | |
530 | bezier->Poles(aPoles); | |
531 | bezier->Weights(aWeights); | |
532 | TColStd_Array1OfReal uKnots(1,2), vKnots(1,2); | |
533 | uKnots(1) = 0; uKnots(2) = 1; | |
534 | vKnots(1) = 0; vKnots(2) = 1; | |
535 | TColStd_Array1OfInteger uMults(1,2), vMults(1,2); | |
536 | uMults.Init(uDegree+1); | |
537 | vMults.Init(vDegree+1); | |
538 | Handle(Geom_BSplineSurface) bspline = new Geom_BSplineSurface(aPoles,aWeights,uKnots,vKnots, | |
539 | uMults,vMults,uDegree,vDegree); | |
540 | ||
541 | if(!ConvertSurface(bspline,S,UF,UL,VF,VL,IsOf)) | |
542 | S = bspline; | |
543 | return Standard_True; | |
544 | } | |
545 | ||
546 | Standard_Integer NbSeg = 1; | |
547 | Standard_Boolean URat = Standard_False; | |
548 | Standard_Boolean VRat = Standard_False; | |
549 | //if (aSurf->IsKind(STANDARD_TYPE(Geom_BSplineSurface)) || | |
550 | // aSurf->IsKind(STANDARD_TYPE(Geom_BezierSurface)) || | |
551 | // (aSurf->IsKind(STANDARD_TYPE(Geom_OffsetSurface)) && !IsOf) || | |
552 | // aSurf->IsKind(STANDARD_TYPE(Geom_SurfaceOfRevolution)) || | |
553 | // aSurface->IsKind(STANDARD_TYPE(Geom_ElementarySurface)))) { | |
554 | Standard_Integer UDeg=1,VDeg=1; | |
555 | if (aSurf->IsKind(STANDARD_TYPE(Geom_BSplineSurface))) { | |
556 | Handle(Geom_BSplineSurface) BsS = Handle(Geom_BSplineSurface)::DownCast (aSurf); | |
557 | UDeg = BsS->UDegree(); | |
558 | VDeg = BsS->VDegree(); | |
559 | NbSeg = (BsS->NbUKnots()-1)*(BsS->NbVKnots()-1); | |
560 | URat = BsS->IsURational(); | |
561 | VRat = BsS->IsVRational(); | |
562 | Standard_Boolean IsR = (myRational && (URat || VRat)); | |
563 | if( UDeg <= myMaxDegree && VDeg <= myMaxDegree && NbSeg <= myNbMaxSeg && !IsR ) | |
564 | return Standard_False; | |
565 | } | |
566 | if (aSurf->IsKind(STANDARD_TYPE(Geom_BezierSurface))) { | |
567 | Handle(Geom_BezierSurface) BsZ = Handle(Geom_BezierSurface)::DownCast (aSurf); | |
568 | UDeg = BsZ->UDegree(); | |
569 | VDeg = BsZ->VDegree(); | |
570 | NbSeg =1; | |
571 | URat = BsZ->IsURational(); | |
572 | VRat = BsZ->IsVRational(); | |
573 | Standard_Boolean IsR = (myRational && (URat || VRat)); | |
574 | if( UDeg <= myMaxDegree && VDeg <= myMaxDegree && NbSeg <= myNbMaxSeg && !IsR ) | |
575 | return Standard_False; | |
576 | ||
577 | } | |
578 | GeomAbs_Shape Cont = myContinuity3d; | |
579 | if(aSurf->IsKind(STANDARD_TYPE(Geom_OffsetSurface))) Cont = GeomAbs_C0; | |
580 | /* Standard_Boolean IsR = (myRational && (URat || VRat)); | |
581 | if( UDeg <= myMaxDegree && VDeg <= myMaxDegree && NbSeg <= myNbMaxSeg && !IsR ) { | |
582 | return Standard_False; | |
583 | ||
584 | }*/ | |
585 | ||
586 | Standard_Real aTol3d; | |
587 | Standard_Integer nbOfSpan,imax=10; | |
588 | Standard_Integer MaxSeg = myNbMaxSeg; | |
589 | Standard_Integer MaxDeg = myMaxDegree; | |
590 | Standard_Real u1,u2,v1,v2; | |
591 | aSurf->Bounds(u1,u2,v1,v2); | |
592 | Standard_Real ShiftU = 0, ShiftV = 0; | |
593 | if( Abs(u1-UF) > Precision::PConfusion() || Abs(u2- UL) > Precision::PConfusion() || | |
594 | Abs(v1-VF) > Precision::PConfusion() || Abs(v2- VL) > Precision::PConfusion()) { | |
595 | /*if(aSurf->IsUPeriodic() ) { | |
596 | Standard_Real aDelta = (UL > UF ? UL - UF : UF - UL ); | |
c6541a0c D |
597 | u1 = (aDelta > 2.*M_PI ? 0. : UF + ShapeAnalysis::AdjustByPeriod(UF,0.5*(UL+UF),2*M_PI)); |
598 | u2 = (aDelta > 2.*M_PI ? 2.*M_PI : u1 + aDelta); | |
7fd59977 | 599 | }*/ |
600 | Standard_Boolean isTrim = Standard_False; | |
601 | if(!aSurf->IsUPeriodic() ) { //else { | |
602 | u1 = Max(u1,UF); u2 = Min(u2,UL); | |
603 | isTrim = Standard_True; | |
604 | } | |
605 | /*if(aSurf->IsVPeriodic()) { | |
606 | ||
607 | Standard_Real aDelta = (VL > VF ? VL - VF : VF - VL ); | |
c6541a0c D |
608 | v1 = (aDelta > 2.*M_PI ? 0. : VF + ShapeAnalysis::AdjustByPeriod(VF,0.5*(UL+UF),2*M_PI)); ; |
609 | v2 = (aDelta > 2.*M_PI ? 2.* M_PI : v1 + aDelta); | |
7fd59977 | 610 | }*/ |
611 | if(!aSurf->IsVPeriodic()) {//else | |
612 | v1 = Max(v1,VF); v2 = Min(v2,VL); | |
613 | isTrim = Standard_True; | |
614 | } | |
615 | ||
616 | if(isTrim && (u1 != u2) && (v1 != v2)) { | |
617 | Handle(Geom_RectangularTrimmedSurface) trSurface = new Geom_RectangularTrimmedSurface(aSurf,u1,u2,v1,v2); | |
618 | Standard_Real ur1,ur2,vr1,vr2; | |
619 | trSurface->Bounds(ur1,ur2,vr1,vr2); | |
620 | ShiftU = u1-ur1; | |
621 | ShiftV = v1-vr1; | |
622 | aSurf = trSurface; | |
623 | } | |
624 | } | |
625 | Standard_Integer aCU= Min(ContToInteger(Cont),ContToInteger(aSurf->Continuity())); | |
626 | Standard_Integer aCV = Min(ContToInteger(Cont),ContToInteger( aSurf->Continuity())); | |
627 | if(!aCU) | |
628 | aCU = ContToInteger(Cont); | |
629 | if(!aCV) | |
630 | aCV = ContToInteger(Cont); | |
631 | ||
632 | for(; ;) { | |
633 | Standard_Real prevTol = RealLast(),newTol =0; | |
634 | for (Standard_Integer i=1; i <= imax; i++) { | |
635 | aTol3d = myTol3d*i/2; | |
636 | while (aCU >= 0 || aCV >= 0) { | |
637 | try { | |
638 | OCC_CATCH_SIGNALS | |
639 | GeomAbs_Shape aContV = IntegerToGeomAbsShape(aCV); | |
640 | GeomAbs_Shape aContU = IntegerToGeomAbsShape(aCU); | |
641 | ||
642 | GeomConvert_ApproxSurface anApprox(aSurf,aTol3d,aContU,aContV,MaxDeg,MaxDeg,MaxSeg,0); | |
643 | Standard_Boolean Done = anApprox.IsDone(); | |
644 | newTol = anApprox.MaxError(); | |
645 | if (anApprox.MaxError() <= myTol3d && Done) { | |
646 | ||
647 | nbOfSpan = (anApprox.Surface()->NbUKnots()-1)*(anApprox.Surface()->NbVKnots()-1); | |
648 | #ifdef DEB | |
649 | if((imax-i+1)!=1) { | |
650 | cout << " iteration = " << i | |
651 | << "\terror = " << anApprox.MaxError() | |
652 | << "\tspans = " << nbOfSpan << endl; | |
653 | cout<< " Surface is aproximated with continuity " << IntegerToGeomAbsShape(Min(aCU,aCV)) <<endl; | |
654 | } | |
655 | #endif | |
656 | S = anApprox.Surface(); | |
657 | Handle(Geom_BSplineSurface) Bsc = Handle(Geom_BSplineSurface)::DownCast(S); | |
658 | if(aSurface->IsUPeriodic() ) | |
659 | Bsc->SetUPeriodic(); | |
660 | if(aSurface->IsVPeriodic() ) | |
661 | Bsc->SetVPeriodic(); | |
662 | //Standard_Integer DegU = Bsc->UDegree(); // DegU not used (skl) | |
663 | //Standard_Integer DegV = Bsc->VDegree(); // DegV not used (skl) | |
664 | //Standard_Integer nbVK = Bsc->NbVKnots(); // nbVK not used (skl) | |
665 | //Standard_Integer nbUK = Bsc->NbUKnots(); // nbUK not used (skl) | |
666 | myConvert = Standard_True; | |
667 | myNbOfSpan = myNbOfSpan + nbOfSpan; | |
668 | mySurfaceError = Max(mySurfaceError,anApprox.MaxError()); | |
669 | if(Abs(ShiftU) > Precision::PConfusion()) { | |
670 | Standard_Integer nb = Bsc->NbUKnots(); | |
671 | TColStd_Array1OfReal uknots(1,nb); | |
672 | Bsc->UKnots(uknots); | |
673 | for(Standard_Integer j = 1; j <= nb; j++) | |
674 | uknots(j)+=ShiftU; | |
675 | Bsc->SetUKnots(uknots); | |
676 | } | |
677 | if(Abs(ShiftV) > Precision::PConfusion()) { | |
678 | Standard_Integer nb = Bsc->NbVKnots(); | |
679 | TColStd_Array1OfReal vknots(1,nb); | |
680 | Bsc->VKnots(vknots); | |
681 | for(Standard_Integer j = 1; j <= nb; j++) | |
682 | vknots(j)+=ShiftV; | |
683 | Bsc->SetVKnots(vknots); | |
684 | } | |
685 | ||
686 | return Standard_True; | |
687 | } | |
688 | else { | |
689 | //#ifdef DEB | |
690 | // cout<< " iteration = " << imax-i+1 | |
691 | // << "\terror = " << anApprox.MaxError() <<endl; | |
692 | //#endif | |
693 | break; | |
694 | } | |
695 | ||
696 | } | |
697 | ||
698 | catch (Standard_Failure) { | |
699 | #ifdef DEB | |
700 | cout << "Warning: GeomConvert_ApproxSurface Exception: try to decrease continuity "; | |
701 | Standard_Failure::Caught()->Print(cout); cout << endl; | |
702 | #endif | |
703 | //szv: protection against loop | |
704 | if(aCU == 0 && aCV == 0) break; | |
705 | if(aCU > 0) aCU--; | |
706 | if(aCV > 0) aCV--; | |
707 | } | |
708 | } | |
709 | if(prevTol <= newTol) break; | |
710 | else prevTol = newTol; | |
711 | } | |
712 | //Standard_Integer GMaxDegree = 15;//Geom_BSplineSurface::MaxDegree(); | |
713 | ||
714 | if(myDeg) { | |
715 | if(MaxSeg < myParameters->GMaxSeg()){ | |
716 | if(aCV != 0 || aCV != 0) { | |
717 | if(aCV > 0) aCV--; | |
718 | if(aCU > 0) aCU--; | |
719 | } | |
720 | else MaxSeg = 2*MaxSeg; //myGMaxSeg; | |
721 | if(MaxSeg > myParameters->GMaxSeg()) | |
722 | MaxSeg = myParameters->GMaxSeg(); | |
723 | else continue; | |
724 | } | |
725 | else { | |
726 | #ifdef DEB | |
727 | cout<<" Approximation iteration out. Surface is not aproximated." << endl; | |
728 | #endif | |
729 | return Standard_False; | |
730 | } | |
731 | } | |
732 | else { | |
733 | if(MaxDeg < myParameters->GMaxDegree()) | |
734 | { MaxDeg = myParameters->GMaxDegree(); continue;} | |
735 | else { | |
736 | #ifdef DEB | |
737 | cout<<" Approximation iteration out. Surface is not aproximated." << endl; | |
738 | #endif | |
739 | return Standard_False; | |
740 | } | |
741 | } | |
742 | } | |
743 | //} | |
744 | //else | |
745 | //Surface is not BSpline or Bezier | |
746 | // return Standard_False; | |
747 | return Standard_True; | |
748 | } | |
749 | ||
750 | //======================================================================= | |
751 | //function : NewCurve | |
752 | //purpose : | |
753 | //======================================================================= | |
754 | ||
755 | Standard_Boolean ShapeCustom_BSplineRestriction::NewCurve(const TopoDS_Edge& E, | |
756 | Handle(Geom_Curve)& C, | |
757 | TopLoc_Location& L, | |
758 | Standard_Real& Tol) | |
759 | { | |
760 | if ( ! myApproxCurve3dFlag ) | |
761 | return Standard_False; | |
762 | Standard_Real First, Last; | |
763 | Handle(Geom_Curve) aCurve = BRep_Tool::Curve(E,L,First, Last); | |
764 | Standard_Real TolCur = BRep_Tool::Tolerance(E); | |
765 | //if(aCurve.IsNull()) return Standard_False; | |
766 | Standard_Boolean IsConvert = Standard_False; | |
767 | Handle(BRep_TEdge)& TE = *((Handle(BRep_TEdge)*)&E.TShape()); | |
768 | // iterate on pcurves | |
769 | BRep_ListIteratorOfListOfCurveRepresentation itcr(TE->Curves()); | |
770 | for ( ; itcr.More(); itcr.Next() ) { | |
771 | Handle(BRep_GCurve) GC = Handle(BRep_GCurve)::DownCast(itcr.Value()); | |
772 | if ( GC.IsNull() || ! GC->IsCurveOnSurface() ) continue; | |
773 | Handle(Geom_Surface) aSurface = GC->Surface(); | |
774 | Handle(Geom2d_Curve) aCurve2d = GC->PCurve(); | |
775 | if((myApproxSurfaceFlag && | |
776 | IsConvertSurface(aSurface,myMaxDegree,myNbMaxSeg,myRational,myParameters)) || | |
777 | (myApproxCurve2dFlag && IsConvertCurve2d(aCurve2d,myMaxDegree,myNbMaxSeg,myRational,myParameters))) { | |
778 | IsConvert = Standard_True; | |
779 | break; | |
780 | } | |
781 | } | |
782 | if(aCurve.IsNull()) { | |
783 | if(IsConvert) { | |
784 | C = aCurve; | |
785 | Tol = TolCur; | |
786 | return Standard_True; | |
787 | } | |
788 | else return Standard_False; | |
789 | } | |
790 | Standard_Boolean IsOf = Standard_True; | |
791 | if(myParameters->ConvertOffsetCurv3d()) IsOf = Standard_False; | |
792 | Standard_Boolean IsConv = ConvertCurve(aCurve,C,IsConvert,First,Last,TolCur,IsOf); | |
793 | Tol= BRep_Tool::Tolerance(E);//TolCur; | |
794 | return IsConv; | |
795 | } | |
796 | ||
797 | //======================================================================= | |
798 | //function : ConvertCurve | |
799 | //purpose : | |
800 | //======================================================================= | |
801 | ||
802 | Standard_Boolean ShapeCustom_BSplineRestriction::ConvertCurve(Handle(Geom_Curve)& aCurve, | |
803 | Handle(Geom_Curve)& C, | |
804 | const Standard_Boolean IsConvert, | |
805 | const Standard_Real First, | |
806 | const Standard_Real Last, | |
807 | Standard_Real& TolCur, | |
808 | const Standard_Boolean IsOf) | |
809 | { | |
810 | // TolCur = Precision::Confusion(); | |
811 | if (aCurve->IsKind(STANDARD_TYPE(Geom_TrimmedCurve))) { | |
812 | Handle(Geom_TrimmedCurve) tmp = Handle(Geom_TrimmedCurve)::DownCast (aCurve); | |
813 | //Standard_Real pf =tmp->FirstParameter(), pl = tmp->LastParameter(); // pf,pl not used - see below (skl) | |
814 | Handle(Geom_Curve) BasCurve = tmp->BasisCurve(); | |
815 | Handle(Geom_Curve) ResCurve; | |
816 | if(ConvertCurve(BasCurve,ResCurve,IsConvert,First,Last,TolCur,IsOf)) { | |
817 | // Stanadrd_Real F = Max(pf,First), L = Min(pl,Last); | |
818 | // if(First != Last) | |
819 | // C = new Geom_TrimmedCurve(ResCurve,Max(First,ResCurve->FirstParameter()),Min(Last,ResCurve->LastParameter())); | |
820 | //else | |
821 | C = ResCurve; | |
822 | return Standard_True; | |
823 | } | |
824 | else { | |
825 | if(IsConvert) { | |
826 | C = Handle(Geom_Curve)::DownCast(aCurve->Copy()); | |
827 | TolCur = Precision::Confusion(); | |
828 | return Standard_True; | |
829 | } | |
830 | ||
831 | return Standard_False; | |
832 | } | |
833 | } | |
834 | ||
835 | if (aCurve->IsKind(STANDARD_TYPE(Geom_Line)) && myParameters->ConvertCurve3d()) { | |
836 | Handle(Geom_Line) aLine = Handle(Geom_Line)::DownCast(aCurve); | |
837 | TColgp_Array1OfPnt poles(1,2); | |
838 | poles(1) = aLine->Value(First); | |
839 | poles(2) = aLine->Value(Last); | |
840 | TColStd_Array1OfReal knots(1,2); | |
841 | knots(1) = First; knots(2) = Last; | |
842 | TColStd_Array1OfInteger mults(1,2); | |
843 | mults.Init(2); | |
844 | Handle(Geom_BSplineCurve) res = new Geom_BSplineCurve(poles,knots,mults,1); | |
845 | C = res; | |
846 | return Standard_True; | |
847 | } | |
848 | ||
849 | if (aCurve->IsKind(STANDARD_TYPE(Geom_Conic)) && myParameters->ConvertCurve3d()) { | |
850 | Handle(Geom_BSplineCurve) aBSpline; | |
851 | Handle(Geom_TrimmedCurve) tcurve = new Geom_TrimmedCurve(aCurve,First,Last); //protection agains parabols ets | |
852 | GeomConvert_ApproxCurve approx (tcurve, myTol3d/*Precision::Approximation()*/, myContinuity2d, myNbMaxSeg, 6 ); | |
853 | if ( approx.HasResult() ) | |
854 | aBSpline = Handle(Geom_BSplineCurve)::DownCast(approx.Curve()); | |
855 | else | |
856 | aBSpline = GeomConvert::CurveToBSplineCurve(tcurve,Convert_QuasiAngular); | |
857 | ||
858 | Standard_Real Shift = First - aBSpline->FirstParameter(); | |
859 | if(Abs(Shift) > Precision::PConfusion()) { | |
860 | Standard_Integer nbKnots = aBSpline->NbKnots(); | |
861 | TColStd_Array1OfReal newKnots(1,nbKnots); | |
862 | aBSpline->Knots(newKnots); | |
863 | for (Standard_Integer i = 1; i <= nbKnots; i++) | |
864 | newKnots(i)+=Shift; | |
865 | aBSpline->SetKnots(newKnots); | |
866 | } | |
867 | Handle(Geom_Curve) ResCurve; | |
868 | if(ConvertCurve(aBSpline,ResCurve,IsConvert,First,Last,TolCur,Standard_False)) { | |
869 | C = ResCurve; | |
870 | return Standard_True; | |
871 | } | |
872 | else { | |
873 | C = aBSpline; | |
874 | TolCur = Precision::PConfusion(); | |
875 | return Standard_True; | |
876 | } | |
877 | } | |
878 | ||
879 | if (aCurve->IsKind(STANDARD_TYPE(Geom_BezierCurve)) && myParameters->ConvertCurve3d()) { | |
880 | Handle(Geom_BSplineCurve) aBSpline | |
881 | = GeomConvert::CurveToBSplineCurve(aCurve,Convert_QuasiAngular); | |
882 | Handle(Geom_Curve) ResCurve; | |
883 | if(ConvertCurve(aBSpline,ResCurve,IsConvert,First,Last,TolCur,Standard_False)) { | |
884 | C = ResCurve; | |
885 | return Standard_True; | |
886 | } | |
887 | else { | |
888 | C = aBSpline; | |
889 | TolCur = Precision::PConfusion(); | |
890 | return Standard_True; | |
891 | } | |
892 | } | |
893 | ||
894 | if (aCurve->IsKind(STANDARD_TYPE(Geom_OffsetCurve)) && IsOf) { | |
895 | Handle(Geom_OffsetCurve) tmp = Handle(Geom_OffsetCurve)::DownCast (aCurve); | |
896 | Handle(Geom_Curve) BasCurve = tmp->BasisCurve(); | |
897 | Handle(Geom_Curve) ResCurve; | |
898 | if(ConvertCurve(BasCurve,ResCurve,IsConvert,First,Last,TolCur)) { | |
899 | if(ResCurve->Continuity() != GeomAbs_C0) { | |
900 | C = new Geom_OffsetCurve(ResCurve,tmp->Offset(),tmp->Direction()); | |
901 | return Standard_True; | |
902 | } | |
903 | else if(ConvertCurve(aCurve,C,IsConvert,First,Last,TolCur,Standard_False)) | |
904 | return Standard_True; | |
905 | else { | |
906 | if(IsConvert) { | |
907 | C = Handle(Geom_Curve)::DownCast(aCurve->Copy()); | |
908 | TolCur = Precision::Confusion(); | |
909 | return Standard_True; | |
910 | } | |
911 | return Standard_False; | |
912 | } | |
913 | } | |
914 | else { | |
915 | if(IsConvert) { | |
916 | C = Handle(Geom_Curve)::DownCast(aCurve->Copy()); | |
917 | TolCur = Precision::Confusion(); | |
918 | return Standard_True; | |
919 | } | |
920 | return Standard_False; | |
921 | } | |
922 | } | |
923 | if (aCurve->IsKind(STANDARD_TYPE(Geom_BSplineCurve)) || | |
924 | aCurve->IsKind(STANDARD_TYPE(Geom_BezierCurve)) || | |
925 | (aCurve->IsKind(STANDARD_TYPE(Geom_OffsetCurve)) && !IsOf)) { | |
926 | Standard_Integer Deg=1; | |
927 | ||
928 | if (aCurve->IsKind(STANDARD_TYPE(Geom_BSplineCurve))) { | |
929 | Handle(Geom_BSplineCurve) BsC = Handle(Geom_BSplineCurve)::DownCast (aCurve); | |
930 | Deg =BsC->Degree(); | |
931 | Standard_Boolean IsR = (myRational && BsC->IsRational()); | |
932 | if(!IsR && Deg <= myMaxDegree && (BsC->NbKnots() - 1) <= myNbMaxSeg) { | |
933 | if(IsConvert) { | |
934 | C = Handle(Geom_Curve)::DownCast(aCurve->Copy()); | |
935 | TolCur = Precision::Confusion(); | |
936 | return Standard_True; | |
937 | } | |
938 | else return Standard_False; | |
939 | } | |
940 | } | |
941 | if (aCurve->IsKind(STANDARD_TYPE(Geom_BezierCurve))) { | |
942 | Handle(Geom_BezierCurve) BzC = Handle(Geom_BezierCurve)::DownCast (aCurve); | |
943 | Deg =BzC->Degree(); | |
944 | Standard_Boolean IsR = (myRational && BzC->IsRational()); | |
945 | if(!IsR && Deg <= myMaxDegree ) { | |
946 | if(IsConvert) { | |
947 | C = Handle(Geom_Curve)::DownCast(aCurve->Copy()); | |
948 | TolCur = Precision::Confusion(); | |
949 | return Standard_True; | |
950 | } | |
951 | else return Standard_False; | |
952 | } | |
953 | } | |
954 | Handle(Geom_Curve) aCurve1; | |
955 | Standard_Real pf =aCurve->FirstParameter(), pl = aCurve->LastParameter(); | |
956 | // 15.11.2002 PTV OCC966 | |
957 | if(ShapeAnalysis_Curve::IsPeriodic(aCurve) && (First != Last)) aCurve1 = new Geom_TrimmedCurve(aCurve,First,Last); | |
958 | else if(pf < (First - Precision::PConfusion()) || | |
959 | pl > (Last + Precision::PConfusion())) { | |
960 | Standard_Real F = Max(First,pf), | |
961 | L = Min(Last,pl); | |
962 | if(F != L) | |
963 | aCurve1 = new Geom_TrimmedCurve(aCurve,F,L); | |
964 | else aCurve1 = aCurve; | |
965 | } | |
966 | else aCurve1 = aCurve; | |
967 | Standard_Integer aC = Min(ContToInteger(myContinuity3d),ContToInteger(aCurve->Continuity())); | |
968 | if(!aC) | |
969 | aC = ContToInteger(myContinuity3d); | |
970 | //aC = Min(aC,(Deg -1)); | |
971 | Standard_Integer MaxSeg = myNbMaxSeg; | |
972 | Standard_Integer MaxDeg = myMaxDegree; | |
973 | //GeomAbs_Shape aCont = IntegerToGeomAbsShape(aC); | |
974 | Standard_Integer aC1 = aC; | |
975 | //Standard_Integer GMaxDegree = 15; //Geom_BSplineCurve::MaxDegree(); | |
976 | for(; aC >= 0; aC--) { | |
977 | try { | |
978 | OCC_CATCH_SIGNALS | |
979 | for(Standard_Integer j = 1; j <=2 ; j++) { | |
980 | GeomAbs_Shape aCont = IntegerToGeomAbsShape(aC); | |
981 | GeomConvert_ApproxCurve anApprox(aCurve1,myTol3d,aCont,MaxSeg,MaxDeg); | |
982 | Standard_Boolean Done = anApprox.IsDone(); | |
983 | C=anApprox.Curve(); | |
984 | Standard_Integer Nbseg = Handle(Geom_BSplineCurve)::DownCast(C)->NbKnots() - 1; | |
985 | Standard_Integer DegC = Handle(Geom_BSplineCurve)::DownCast(C)->Degree(); | |
986 | if( myDeg && ((DegC > MaxDeg) || !Done || | |
987 | (anApprox.MaxError() >= Max(TolCur,myTol3d)))) { | |
988 | if(MaxSeg < myParameters->GMaxSeg()) { MaxSeg = myParameters->GMaxSeg(); aC =aC1; continue;} | |
989 | else { | |
990 | #ifdef DEB | |
991 | cout << "Curve is not aproxed with continuity "<< aCont<<endl; | |
992 | #endif | |
993 | if(IsConvert) { | |
994 | C = Handle(Geom_Curve)::DownCast(aCurve->Copy()); | |
995 | TolCur = Precision::Confusion(); | |
996 | return Standard_True; | |
997 | } | |
998 | } | |
999 | } | |
1000 | if(!myDeg && ((Nbseg > myParameters->GMaxSeg()) || !Done || | |
1001 | (anApprox.MaxError() >= Max(TolCur,myTol3d)))) { | |
1002 | if(MaxDeg < myParameters->GMaxDegree()) { | |
1003 | MaxDeg = myParameters->GMaxDegree(); aC = aC1; continue; | |
1004 | } | |
1005 | else { | |
1006 | #ifdef DEB | |
1007 | cout << "Curve is not aproxed with continuity "<< aCont<<endl; | |
1008 | #endif | |
1009 | if(IsConvert) { | |
1010 | C = Handle(Geom_Curve)::DownCast(aCurve->Copy()); | |
1011 | TolCur = Precision::Confusion(); | |
1012 | return Standard_True; | |
1013 | } | |
1014 | } | |
1015 | } | |
1016 | myConvert = Standard_True; | |
1017 | TolCur = anApprox.MaxError(); | |
1018 | myCurve3dError = Max(myCurve3dError,anApprox.MaxError()); | |
1019 | return Standard_True; | |
1020 | } | |
1021 | } | |
1022 | catch (Standard_Failure) { | |
1023 | #ifdef DEB | |
1024 | cout << "Warning: GeomConvert_ApproxCurve Exception: Wrong Coefficient : Decrease continuity "; | |
1025 | Standard_Failure::Caught()->Print(cout); cout << endl; | |
1026 | #endif | |
1027 | continue; | |
1028 | } | |
1029 | } | |
1030 | return Standard_False; | |
1031 | } | |
1032 | else { | |
1033 | if(IsConvert) { | |
1034 | C = Handle(Geom_Curve)::DownCast(aCurve->Copy()); | |
1035 | TolCur = Precision::Confusion(); | |
1036 | return Standard_True; | |
1037 | } | |
1038 | return Standard_False; | |
1039 | } | |
1040 | } | |
1041 | ||
1042 | //======================================================================= | |
1043 | //function : NewCurve2d | |
1044 | //purpose : | |
1045 | //======================================================================= | |
1046 | ||
1047 | Standard_Boolean ShapeCustom_BSplineRestriction::NewCurve2d(const TopoDS_Edge& E, | |
1048 | const TopoDS_Face& F, | |
1049 | const TopoDS_Edge& NewE, | |
1050 | const TopoDS_Face& /*NewF*/, | |
1051 | Handle(Geom2d_Curve)& C, | |
1052 | Standard_Real& Tol) | |
1053 | { | |
1054 | if ( ! myApproxCurve2dFlag && !myApproxSurfaceFlag) | |
1055 | return Standard_False; | |
1056 | Standard_Real First, Last,F1,L1; | |
1057 | TopLoc_Location L,Loc1; | |
1058 | Handle(Geom_Surface) aSurface = BRep_Tool::Surface(F,L); | |
1059 | GeomAdaptor_Surface AdS(aSurface); | |
1060 | Standard_Real TolCur = Min(AdS.UResolution(BRep_Tool::Tolerance(E)),AdS.VResolution(BRep_Tool::Tolerance(E))); | |
1061 | Handle(Geom2d_Curve) aCurve = BRep_Tool::CurveOnSurface(E,F,First, Last); | |
1062 | if(aCurve.IsNull()) return Standard_False; | |
1063 | Handle(Geom_Curve) aCur3d = BRep_Tool::Curve(E,Loc1,F1, L1); | |
1064 | // Standard_Boolean IsConvert = (IsConvertSurface(aSurface,myMaxDegree,myNbMaxSeg) || !E.IsSame(NewE)); | |
1065 | ||
1066 | Standard_Boolean IsConvert = | |
1067 | ((myApproxSurfaceFlag && IsConvertSurface(aSurface,myMaxDegree,myNbMaxSeg,myRational,myParameters)) || | |
1068 | (myApproxCurve3dFlag && IsConvertCurve3d(aCur3d,myMaxDegree,myNbMaxSeg,myRational,myParameters))); | |
1069 | ||
1070 | if(!IsConvert) { | |
1071 | Handle(BRep_TEdge)& TE = *((Handle(BRep_TEdge)*)&E.TShape()); | |
1072 | // iterate on pcurves | |
1073 | BRep_ListIteratorOfListOfCurveRepresentation itcr(TE->Curves()); | |
1074 | for ( ; itcr.More(); itcr.Next() ) { | |
1075 | Handle(BRep_GCurve) GC = Handle(BRep_GCurve)::DownCast(itcr.Value()); | |
1076 | if ( GC.IsNull() || ! GC->IsCurveOnSurface() ) continue; | |
1077 | Handle(Geom_Surface) aSurf = GC->Surface(); | |
1078 | Handle(Geom2d_Curve) aCur2d = GC->PCurve(); | |
1079 | if((myApproxSurfaceFlag && IsConvertSurface(aSurf,myMaxDegree,myNbMaxSeg,myRational,myParameters)) || | |
1080 | (myApproxCurve2dFlag && IsConvertCurve2d(aCur2d,myMaxDegree,myNbMaxSeg,myRational,myParameters))) { | |
1081 | IsConvert = Standard_True; | |
1082 | break; | |
1083 | } | |
1084 | } | |
1085 | } | |
1086 | if(! myApproxCurve2dFlag){ | |
1087 | if(IsConvert) { | |
1088 | C = Handle(Geom2d_Curve)::DownCast(aCurve->Copy()); | |
1089 | return Standard_True; | |
1090 | } | |
1091 | else | |
1092 | return Standard_False; | |
1093 | } | |
1094 | Standard_Boolean IsOf = Standard_True; | |
1095 | if(myParameters->ConvertOffsetCurv2d()) IsOf = Standard_False; | |
1096 | Standard_Boolean IsConv = ConvertCurve2d(aCurve,C,IsConvert,First,Last,TolCur,IsOf); | |
1097 | ||
1098 | Tol= BRep_Tool::Tolerance(E);//TolCur; | |
1099 | BRep_Builder B; | |
1100 | if(!IsConv && !NewE.IsSame( E)) | |
1101 | B.Range(NewE,First,Last); | |
1102 | return IsConv; | |
1103 | } | |
1104 | ||
1105 | //======================================================================= | |
1106 | //function : ConvertCurve2d | |
1107 | //purpose : | |
1108 | //======================================================================= | |
1109 | ||
1110 | Standard_Boolean ShapeCustom_BSplineRestriction::ConvertCurve2d(Handle(Geom2d_Curve)& aCurve, | |
1111 | Handle(Geom2d_Curve)& C, | |
1112 | const Standard_Boolean IsConvert, | |
1113 | const Standard_Real First, | |
1114 | const Standard_Real Last, | |
1115 | Standard_Real& TolCur, | |
1116 | const Standard_Boolean IsOf) | |
1117 | { | |
1118 | //TolCur = Precision::PConfusion(); | |
1119 | if (aCurve->IsKind(STANDARD_TYPE(Geom2d_TrimmedCurve))) { | |
1120 | Handle(Geom2d_TrimmedCurve) tmp = Handle(Geom2d_TrimmedCurve)::DownCast (aCurve); | |
1121 | // Standard_Real pf =tmp->FirstParameter(), pl = tmp->LastParameter(); | |
1122 | Handle(Geom2d_Curve) BasCurve = tmp->BasisCurve(); | |
1123 | Handle(Geom2d_Curve) ResCurve; | |
1124 | if(ConvertCurve2d(BasCurve,ResCurve,IsConvert,First,Last,TolCur,IsOf)) { | |
1125 | // Standard_Real F = Max(ResCurve->FirstParameter(),First), L = Min(ResCurve->LastParameter(),Last); | |
1126 | // if(F != Last) | |
1127 | //C = new Geom2d_TrimmedCurve(ResCurve,Max(First,ResCurve->FirstParameter()),Min(Last,ResCurve->LastParameter())); | |
1128 | //else | |
1129 | C = ResCurve; | |
1130 | return Standard_True; | |
1131 | } | |
1132 | else { | |
1133 | if(IsConvert) { | |
1134 | C = Handle(Geom2d_Curve)::DownCast(aCurve->Copy()); | |
1135 | TolCur = Precision::PConfusion(); | |
1136 | return Standard_True; | |
1137 | } | |
1138 | else return Standard_False; | |
1139 | } | |
1140 | } | |
1141 | ||
1142 | if (aCurve->IsKind(STANDARD_TYPE(Geom2d_Line)) && myParameters->ConvertCurve2d()) { | |
1143 | Handle(Geom2d_Line) aLine2d = Handle(Geom2d_Line)::DownCast(aCurve); | |
1144 | TColgp_Array1OfPnt2d poles(1,2); | |
1145 | poles(1) = aLine2d->Value(First); | |
1146 | poles(2) = aLine2d->Value(Last); | |
1147 | TColStd_Array1OfReal knots(1,2); | |
1148 | knots(1) = First; knots(2) = Last; | |
1149 | TColStd_Array1OfInteger mults(1,2); | |
1150 | mults.Init(2); | |
1151 | Handle(Geom2d_BSplineCurve) res = new Geom2d_BSplineCurve(poles,knots,mults,1); | |
1152 | C = res; | |
1153 | return Standard_True; | |
1154 | } | |
1155 | ||
1156 | if (aCurve->IsKind(STANDARD_TYPE(Geom2d_Conic)) && myParameters->ConvertCurve2d()) { | |
1157 | Handle(Geom2d_BSplineCurve) aBSpline2d; | |
1158 | Handle(Geom2d_TrimmedCurve) tcurve = new Geom2d_TrimmedCurve(aCurve,First,Last); //protection agains parabols ets | |
1159 | Geom2dConvert_ApproxCurve approx (tcurve, myTol2d,myContinuity2d,myNbMaxSeg , 6 ); | |
1160 | if ( approx.HasResult() ) | |
1161 | aBSpline2d = Handle(Geom2d_BSplineCurve)::DownCast(approx.Curve()); | |
1162 | else | |
1163 | aBSpline2d = Geom2dConvert::CurveToBSplineCurve(tcurve,Convert_QuasiAngular); | |
1164 | ||
1165 | Standard_Real Shift = First - aBSpline2d->FirstParameter(); | |
1166 | if(Abs(Shift) > Precision::PConfusion()) { | |
1167 | Standard_Integer nbKnots = aBSpline2d->NbKnots(); | |
1168 | TColStd_Array1OfReal newKnots(1,nbKnots); | |
1169 | aBSpline2d->Knots(newKnots); | |
1170 | for (Standard_Integer i = 1; i <= nbKnots; i++) | |
1171 | newKnots(i)+=Shift; | |
1172 | aBSpline2d->SetKnots(newKnots); | |
1173 | } | |
1174 | Handle(Geom2d_Curve) ResCurve; | |
1175 | if(ConvertCurve2d(aBSpline2d,ResCurve,IsConvert,First,Last,TolCur,Standard_False)) { | |
1176 | C = ResCurve; | |
1177 | return Standard_True; | |
1178 | } | |
1179 | else { | |
1180 | C = aBSpline2d; | |
1181 | TolCur = Precision::PConfusion(); | |
1182 | return Standard_True; | |
1183 | } | |
1184 | } | |
1185 | ||
1186 | if (aCurve->IsKind(STANDARD_TYPE(Geom2d_BezierCurve)) && myParameters->ConvertCurve2d()) { | |
1187 | Handle(Geom2d_BSplineCurve) aBSpline2d | |
1188 | = Geom2dConvert::CurveToBSplineCurve(aCurve,Convert_QuasiAngular); | |
1189 | Handle(Geom2d_Curve) ResCurve; | |
1190 | if(ConvertCurve2d(aBSpline2d,ResCurve,IsConvert,First,Last,TolCur,Standard_False)) { | |
1191 | C = ResCurve; | |
1192 | return Standard_True; | |
1193 | } | |
1194 | else { | |
1195 | C = aBSpline2d; | |
1196 | TolCur = Precision::PConfusion(); | |
1197 | return Standard_True; | |
1198 | } | |
1199 | } | |
1200 | ||
1201 | if (aCurve->IsKind(STANDARD_TYPE(Geom2d_OffsetCurve)) && IsOf) { | |
1202 | Handle(Geom2d_OffsetCurve) tmp = Handle(Geom2d_OffsetCurve)::DownCast (aCurve); | |
1203 | Handle(Geom2d_Curve) BasCurve = tmp->BasisCurve(); | |
1204 | Handle(Geom2d_Curve) ResCurve; | |
1205 | if(ConvertCurve2d(BasCurve,ResCurve,IsConvert,First,Last,TolCur)) { | |
1206 | if(ResCurve->Continuity() != GeomAbs_C0) { | |
1207 | C = new Geom2d_OffsetCurve(ResCurve,tmp->Offset()); | |
1208 | return Standard_True; | |
1209 | } | |
1210 | else if (ConvertCurve2d(aCurve,ResCurve,IsConvert,First,Last,TolCur,Standard_False)) | |
1211 | return Standard_True; | |
1212 | else { | |
1213 | if(IsConvert) { | |
1214 | C = Handle(Geom2d_Curve)::DownCast(aCurve->Copy()); | |
1215 | TolCur = Precision::PConfusion(); | |
1216 | return Standard_True; | |
1217 | } | |
1218 | else return Standard_False; | |
1219 | ||
1220 | } | |
1221 | } | |
1222 | else { | |
1223 | if(IsConvert) { | |
1224 | C = Handle(Geom2d_Curve)::DownCast(aCurve->Copy()); | |
1225 | TolCur = Precision::PConfusion(); | |
1226 | return Standard_True; | |
1227 | } | |
1228 | else return Standard_False; | |
1229 | } | |
1230 | } | |
1231 | if (aCurve->IsKind(STANDARD_TYPE(Geom2d_BSplineCurve)) || | |
1232 | aCurve->IsKind(STANDARD_TYPE(Geom2d_BezierCurve)) || | |
1233 | (aCurve->IsKind(STANDARD_TYPE(Geom2d_OffsetCurve))) && !IsOf ) { | |
1234 | Standard_Integer Deg=1; | |
1235 | ||
1236 | if (aCurve->IsKind(STANDARD_TYPE(Geom2d_BSplineCurve))) { | |
1237 | Handle(Geom2d_BSplineCurve) BsC = Handle(Geom2d_BSplineCurve)::DownCast (aCurve); | |
1238 | Deg =BsC->Degree(); | |
1239 | Standard_Boolean IsR = (myRational && BsC->IsRational()); | |
1240 | if(!IsR && Deg <= myMaxDegree && (BsC->NbKnots() -1) <= myNbMaxSeg) { | |
1241 | if(IsConvert) { | |
1242 | C = Handle(Geom2d_Curve)::DownCast(aCurve->Copy()); | |
1243 | TolCur = Precision::PConfusion(); | |
1244 | return Standard_True; | |
1245 | } | |
1246 | else return Standard_False; | |
1247 | } | |
1248 | } | |
1249 | if (aCurve->IsKind(STANDARD_TYPE(Geom2d_BezierCurve))) { | |
1250 | Handle(Geom2d_BezierCurve)BzC = Handle(Geom2d_BezierCurve)::DownCast (aCurve); | |
1251 | Deg =BzC->Degree(); | |
1252 | Standard_Boolean IsR = (myRational && BzC->IsRational()); | |
1253 | if(!IsR && Deg <= myMaxDegree) { | |
1254 | if(IsConvert) { | |
1255 | C = Handle(Geom2d_Curve)::DownCast(aCurve->Copy()); | |
1256 | TolCur = Precision::PConfusion(); | |
1257 | return Standard_True; | |
1258 | } | |
1259 | else return Standard_False; | |
1260 | } | |
1261 | } | |
1262 | Handle(Geom2d_Curve) aCurve1; | |
1263 | Standard_Real pf =aCurve->FirstParameter(), pl = aCurve->LastParameter(); | |
1264 | // 15.11.2002 PTV OCC966 | |
1265 | if(ShapeAnalysis_Curve::IsPeriodic(aCurve) && (First != Last)) aCurve1 = new Geom2d_TrimmedCurve(aCurve,First,Last); | |
1266 | else if(aCurve->FirstParameter() < (First - Precision::PConfusion()) || | |
1267 | aCurve->LastParameter() > (Last + Precision::PConfusion())) { | |
1268 | Standard_Real F = Max(First,pf), | |
1269 | L = Min(Last,pl); | |
1270 | if(F != L) | |
1271 | aCurve1 = new Geom2d_TrimmedCurve(aCurve,F,L); | |
1272 | else aCurve1 = aCurve; | |
1273 | } | |
1274 | else aCurve1 = aCurve; | |
1275 | Standard_Integer aC = Min(ContToInteger(myContinuity2d),ContToInteger( aCurve->Continuity())); | |
1276 | if(!aC) | |
1277 | aC = ContToInteger(myContinuity2d); | |
1278 | //aC = Min(aC,(Deg -1)); | |
1279 | Standard_Integer aC1 = aC; | |
1280 | //GeomAbs_Shape aCont =IntegerToGeomAbsShape(aC); | |
1281 | Standard_Integer MaxSeg = myNbMaxSeg; | |
1282 | Standard_Integer MaxDeg = myMaxDegree; | |
1283 | //Standard_Integer GMaxDegree = 15;//Geom2d_BSplineCurve::MaxDegree(); | |
1284 | for(; aC >= 0; aC--) { | |
1285 | try { | |
1286 | OCC_CATCH_SIGNALS | |
1287 | GeomAbs_Shape aCont = IntegerToGeomAbsShape(aC); | |
1288 | for(Standard_Integer j =1;j<=2 ;j++) { | |
1289 | Geom2dConvert_ApproxCurve anApprox(aCurve1,myTol2d,aCont,MaxSeg,MaxDeg); | |
1290 | Standard_Boolean Done = anApprox.IsDone(); | |
1291 | C=anApprox.Curve(); | |
1292 | Standard_Integer Nbseg = Handle(Geom2d_BSplineCurve)::DownCast(C)->NbKnots() -1; | |
1293 | Standard_Integer DegC = Handle(Geom2d_BSplineCurve)::DownCast(C)->Degree(); | |
1294 | ||
1295 | if(myDeg && ((DegC > MaxDeg) || !Done || ( anApprox.MaxError() >= Max(myTol2d,TolCur)))) { | |
1296 | if(MaxSeg < myParameters->GMaxSeg()) { MaxSeg = myParameters->GMaxSeg(); aC =aC1; continue;} | |
1297 | else { | |
1298 | #ifdef DEB | |
1299 | cout << "Curve is not aproxed with continuity "<< aCont<<endl; | |
1300 | #endif | |
1301 | if(IsConvert) { | |
1302 | C = Handle(Geom2d_Curve)::DownCast(aCurve->Copy()); | |
1303 | TolCur = Precision::PConfusion(); | |
1304 | return Standard_True; | |
1305 | } | |
1306 | } | |
1307 | } | |
1308 | ||
1309 | if(!myDeg && (( Nbseg >= MaxSeg)|| !Done || ( anApprox.MaxError() >= Max(myTol2d,TolCur)))) { | |
1310 | if(MaxDeg < myParameters->GMaxDegree()) { | |
1311 | MaxDeg = myParameters->GMaxDegree(); aC =aC1; continue; | |
1312 | } | |
1313 | else { | |
1314 | #ifdef DEB | |
1315 | cout << "Curve is not aproxed with continuity "<< aCont<<endl; | |
1316 | #endif | |
1317 | if(IsConvert) { | |
1318 | C = Handle(Geom2d_Curve)::DownCast(aCurve->Copy()); | |
1319 | TolCur = Precision::PConfusion(); | |
1320 | return Standard_True; | |
1321 | } | |
1322 | } | |
1323 | } | |
1324 | myConvert= Standard_True; | |
1325 | TolCur = anApprox.MaxError(); | |
1326 | myCurve2dError = Max(myCurve2dError,anApprox.MaxError()); | |
1327 | return Standard_True; | |
1328 | } | |
1329 | } | |
1330 | catch (Standard_Failure) { | |
1331 | #ifdef DEB | |
1332 | cout << "Warning: Geom2dConvert_ApproxCurve Exception: Wrong Cofficient :Decrease Continuity "; | |
1333 | Standard_Failure::Caught()->Print(cout); cout << endl; | |
1334 | #endif | |
1335 | continue; | |
1336 | } | |
1337 | } | |
1338 | return Standard_False; | |
1339 | } | |
1340 | else { | |
1341 | if(IsConvert) { | |
1342 | C = Handle(Geom2d_Curve)::DownCast(aCurve->Copy()); | |
1343 | TolCur = Precision::PConfusion(); | |
1344 | return Standard_True; | |
1345 | } | |
1346 | else return Standard_False; | |
1347 | } | |
1348 | } | |
1349 | ||
1350 | //======================================================================= | |
1351 | //function : NewPoint | |
1352 | //purpose : | |
1353 | //======================================================================= | |
1354 | ||
1355 | Standard_Boolean ShapeCustom_BSplineRestriction::NewPoint(const TopoDS_Vertex& V, | |
1356 | gp_Pnt& P, | |
1357 | Standard_Real& Tol) | |
1358 | { | |
1359 | Tol = BRep_Tool::Tolerance(V); | |
1360 | if(myConvert) { | |
1361 | gp_Pnt p1(BRep_Tool::Pnt(V).XYZ()); | |
1362 | P = p1; | |
1363 | return Standard_True; | |
1364 | } | |
1365 | else | |
1366 | return Standard_False; | |
1367 | } | |
1368 | ||
1369 | //======================================================================= | |
1370 | //function : NewParameter | |
1371 | //purpose : | |
1372 | //======================================================================= | |
1373 | ||
1374 | Standard_Boolean ShapeCustom_BSplineRestriction::NewParameter(const TopoDS_Vertex& /*V*/, | |
1375 | const TopoDS_Edge& /*E*/, | |
1376 | Standard_Real& /*P*/, | |
1377 | Standard_Real& /*Tol*/) | |
1378 | { | |
1379 | return Standard_False; | |
1380 | } | |
1381 | ||
1382 | //======================================================================= | |
1383 | //function : Continuity | |
1384 | //purpose : | |
1385 | //======================================================================= | |
1386 | ||
1387 | GeomAbs_Shape ShapeCustom_BSplineRestriction::Continuity(const TopoDS_Edge& E, | |
1388 | const TopoDS_Face& F1, | |
1389 | const TopoDS_Face& F2, | |
1390 | const TopoDS_Edge& /*NewE*/, | |
1391 | const TopoDS_Face& /*NewF1*/, | |
1392 | const TopoDS_Face& /*NewF2*/) | |
1393 | { | |
1394 | return BRep_Tool::Continuity(E,F1,F2); | |
1395 | } | |
1396 | ||
1397 | //======================================================================= | |
1398 | //function : MaxErrors | |
1399 | //purpose : | |
1400 | //======================================================================= | |
1401 | ||
1402 | Standard_Real ShapeCustom_BSplineRestriction::MaxErrors(Standard_Real& aCurve3dErr,Standard_Real& aCurve2dErr) const | |
1403 | { | |
1404 | aCurve3dErr = myCurve3dError; | |
1405 | aCurve2dErr = myCurve2dError; | |
1406 | return mySurfaceError; | |
1407 | } | |
1408 | ||
1409 | //======================================================================= | |
1410 | //function : NbOfSpan | |
1411 | //purpose : | |
1412 | //====================================================================== | |
1413 | ||
1414 | Standard_Integer ShapeCustom_BSplineRestriction::NbOfSpan() const | |
1415 | { | |
1416 | return myNbOfSpan; | |
1417 | } | |
1418 |