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1 | // Created on: 1995-08-04 |
2 | // Created by: Modelistation |
3 | // Copyright (c) 1995-1999 Matra Datavision |
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4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
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5 | // |
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6 | // This file is part of Open CASCADE Technology software library. |
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7 | // |
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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 |
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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. |
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13 | // |
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14 | // Alternatively, this file may be used under the terms of Open CASCADE |
15 | // commercial license or contractual agreement. |
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16 | |
17 | // Great zoom leads to non-coincidence of |
18 | // a point and non-infinite lines passing throught this point: |
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19 | |
20 | #include <StdPrs_Curve.ixx> |
21 | |
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22 | #include <Graphic3d_ArrayOfSegments.hxx> |
23 | #include <Graphic3d_ArrayOfPolylines.hxx> |
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24 | #include <Graphic3d_Group.hxx> |
25 | #include <Prs3d_LineAspect.hxx> |
26 | #include <Prs3d_Arrow.hxx> |
27 | #include <Prs3d_ArrowAspect.hxx> |
28 | #include <gp_Pnt.hxx> |
29 | #include <gp_Circ.hxx> |
30 | #include <gp_Dir.hxx> |
31 | #include <gp_Vec.hxx> |
32 | #include <Prs3d.hxx> |
33 | #include <Bnd_Box.hxx> |
34 | #include <Precision.hxx> |
35 | #include <TColgp_SequenceOfPnt.hxx> |
36 | |
37 | |
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38 | //================================================================== |
39 | // function: FindLimits |
40 | // purpose: |
41 | //================================================================== |
42 | static void FindLimits(const Adaptor3d_Curve& aCurve, |
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43 | const Standard_Real aLimit, |
44 | Standard_Real& First, |
45 | Standard_Real& Last) |
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46 | { |
47 | First = aCurve.FirstParameter(); |
48 | Last = aCurve.LastParameter(); |
49 | Standard_Boolean firstInf = Precision::IsNegativeInfinite(First); |
50 | Standard_Boolean lastInf = Precision::IsPositiveInfinite(Last); |
51 | |
52 | if (firstInf || lastInf) { |
53 | gp_Pnt P1,P2; |
54 | Standard_Real delta = 1; |
55 | if (firstInf && lastInf) { |
56 | do { |
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57 | delta *= 2; |
58 | First = - delta; |
59 | Last = delta; |
60 | aCurve.D0(First,P1); |
61 | aCurve.D0(Last,P2); |
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62 | } while (P1.Distance(P2) < aLimit); |
63 | } |
64 | else if (firstInf) { |
65 | aCurve.D0(Last,P2); |
66 | do { |
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67 | delta *= 2; |
68 | First = Last - delta; |
69 | aCurve.D0(First,P1); |
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70 | } while (P1.Distance(P2) < aLimit); |
71 | } |
72 | else if (lastInf) { |
73 | aCurve.D0(First,P1); |
74 | do { |
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75 | delta *= 2; |
76 | Last = First + delta; |
77 | aCurve.D0(Last,P2); |
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78 | } while (P1.Distance(P2) < aLimit); |
79 | } |
80 | } |
81 | } |
82 | |
83 | |
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84 | //================================================================== |
85 | // function: DrawCurve |
86 | // purpose: |
87 | //================================================================== |
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88 | static void DrawCurve (const Adaptor3d_Curve& aCurve, |
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89 | const Handle(Graphic3d_Group) aGroup, |
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90 | const Standard_Integer NbP, |
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91 | const Standard_Real U1, |
92 | const Standard_Real U2, |
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93 | TColgp_SequenceOfPnt& Points, |
94 | const Standard_Boolean drawCurve) |
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95 | { |
96 | Standard_Integer nbintervals = 1; |
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97 | |
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98 | if (aCurve.GetType() == GeomAbs_BSplineCurve) { |
99 | nbintervals = aCurve.NbKnots() - 1; |
100 | nbintervals = Max(1, nbintervals/3); |
101 | } |
102 | |
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103 | switch (aCurve.GetType()) |
104 | { |
105 | case GeomAbs_Line: |
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106 | { |
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107 | gp_Pnt p1 = aCurve.Value(U1); |
108 | gp_Pnt p2 = aCurve.Value(U2); |
109 | Points.Append(p1); |
110 | Points.Append(p2); |
111 | if(drawCurve) |
112 | { |
113 | Handle(Graphic3d_ArrayOfSegments) aPrims = new Graphic3d_ArrayOfSegments(2); |
114 | aPrims->AddVertex(p1); |
115 | aPrims->AddVertex(p2); |
116 | aGroup->AddPrimitiveArray(aPrims); |
117 | } |
118 | } |
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119 | break; |
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120 | default: |
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121 | { |
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122 | const Standard_Integer N = Max(2, NbP*nbintervals); |
123 | const Standard_Real DU = (U2-U1) / (N-1); |
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124 | gp_Pnt p; |
125 | |
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126 | Handle(Graphic3d_ArrayOfPolylines) aPrims; |
127 | if(drawCurve) |
128 | aPrims = new Graphic3d_ArrayOfPolylines(N); |
129 | |
130 | for (Standard_Integer i = 1; i <= N;i++) { |
131 | p = aCurve.Value(U1 + (i-1)*DU); |
132 | Points.Append(p); |
133 | if(drawCurve) |
134 | aPrims->AddVertex(p); |
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135 | } |
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136 | if(drawCurve) |
137 | aGroup->AddPrimitiveArray(aPrims); |
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138 | } |
139 | } |
140 | } |
141 | |
142 | |
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143 | //================================================================== |
144 | // function: MatchCurve |
145 | // purpose: |
146 | //================================================================== |
147 | static Standard_Boolean MatchCurve ( |
148 | const Quantity_Length X, |
149 | const Quantity_Length Y, |
150 | const Quantity_Length Z, |
151 | const Quantity_Length aDistance, |
152 | const Adaptor3d_Curve& aCurve, |
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153 | const Quantity_Length TheDeflection, |
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154 | const Standard_Integer NbP, |
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155 | const Standard_Real U1, |
156 | const Standard_Real U2) |
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157 | { |
158 | Quantity_Length retdist; |
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159 | switch (aCurve.GetType()) |
160 | { |
161 | case GeomAbs_Line: |
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162 | { |
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163 | gp_Pnt p1 = aCurve.Value(U1); |
164 | if ( Abs(X-p1.X()) + Abs(Y-p1.Y()) + Abs(Z-p1.Z()) <= aDistance) |
165 | return Standard_True; |
166 | gp_Pnt p2 = aCurve.Value(U2); |
167 | if ( Abs(X-p2.X()) + Abs(Y-p2.Y()) + Abs(Z-p2.Z()) <= aDistance) |
168 | return Standard_True; |
169 | return Prs3d::MatchSegment(X,Y,Z,aDistance,p1,p2,retdist); |
170 | } |
171 | case GeomAbs_Circle: |
172 | { |
173 | const Standard_Real Radius = aCurve.Circle().Radius(); |
174 | const Standard_Real DU = Sqrt(8.0 * TheDeflection / Radius); |
175 | const Standard_Real Er = Abs( U2 - U1) / DU; |
176 | const Standard_Integer N = Max(2, (Standard_Integer)IntegerPart(Er)); |
177 | if ( N > 0) { |
178 | gp_Pnt p1,p2; |
179 | for (Standard_Integer Index = 1; Index <= N+1; Index++) { |
180 | p2 = aCurve.Value(U1 + (Index - 1) * DU); |
181 | if ( Abs(X-p2.X()) + Abs(Y-p2.Y()) + Abs(Z-p2.Z()) <= aDistance) |
182 | return Standard_True; |
183 | |
184 | if (Index>1) { |
185 | if (Prs3d::MatchSegment(X,Y,Z,aDistance,p1,p2,retdist)) |
186 | return Standard_True; |
187 | } |
188 | p1=p2; |
189 | } |
190 | } |
191 | break; |
192 | } |
193 | default: |
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194 | { |
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195 | const Standard_Real DU = (U2-U1) / (NbP-1); |
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196 | gp_Pnt p1,p2; |
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197 | for (Standard_Integer i=1;i<=NbP;i++) { |
198 | p2 = aCurve.Value(U1 + (i-1)*DU); |
199 | if ( Abs(X-p2.X()) + Abs(Y-p2.Y()) + Abs(Z-p2.Z()) <= aDistance) |
200 | return Standard_True; |
201 | if (i>1) { |
202 | if (Prs3d::MatchSegment(X,Y,Z,aDistance,p1,p2,retdist)) |
203 | return Standard_True; |
204 | } |
205 | p1=p2; |
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206 | } |
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207 | } |
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208 | } |
209 | return Standard_False; |
210 | } |
211 | |
212 | |
213 | //================================================================== |
214 | // function: Add |
215 | // purpose: |
216 | //================================================================== |
217 | void StdPrs_Curve::Add (const Handle (Prs3d_Presentation)& aPresentation, |
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218 | const Adaptor3d_Curve& aCurve, |
219 | const Handle (Prs3d_Drawer)& aDrawer, |
220 | const Standard_Boolean drawCurve) |
221 | { |
222 | Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(aDrawer->LineAspect()->Aspect()); |
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223 | |
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224 | Standard_Real V1, V2; |
225 | FindLimits(aCurve, aDrawer->MaximalParameterValue(), V1, V2); |
226 | |
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227 | const Standard_Integer NbPoints = aDrawer->Discretisation(); |
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228 | TColgp_SequenceOfPnt Pnts; |
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229 | DrawCurve(aCurve,Prs3d_Root::CurrentGroup(aPresentation),NbPoints,V1,V2,Pnts,drawCurve); |
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230 | |
231 | if (aDrawer->LineArrowDraw()) { |
232 | gp_Pnt Location; |
233 | gp_Vec Direction; |
234 | aCurve.D1(aCurve.LastParameter(),Location,Direction); |
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235 | Prs3d_Arrow::Draw (aPresentation,Location,gp_Dir(Direction), |
236 | aDrawer->ArrowAspect()->Angle(), |
237 | aDrawer->ArrowAspect()->Length()); |
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238 | } |
239 | } |
240 | |
241 | |
242 | //================================================================== |
243 | // function: Add |
244 | // purpose: |
245 | //================================================================== |
246 | void StdPrs_Curve::Add (const Handle (Prs3d_Presentation)& aPresentation, |
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247 | const Adaptor3d_Curve& aCurve, |
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248 | const Quantity_Length /*aDeflection*/, |
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249 | const Handle(Prs3d_Drawer)& aDrawer, |
250 | TColgp_SequenceOfPnt& Points, |
251 | const Standard_Boolean drawCurve) |
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252 | { |
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253 | Standard_Real V1, V2; |
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254 | FindLimits(aCurve, aDrawer->MaximalParameterValue(), V1, V2); |
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255 | |
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256 | const Standard_Integer NbPoints = aDrawer->Discretisation(); |
257 | DrawCurve(aCurve,Prs3d_Root::CurrentGroup(aPresentation),NbPoints,V1,V2,Points,drawCurve); |
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258 | } |
259 | |
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260 | |
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261 | //================================================================== |
262 | // function: Add |
263 | // purpose: |
264 | //================================================================== |
265 | void StdPrs_Curve::Add (const Handle (Prs3d_Presentation)& aPresentation, |
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266 | const Adaptor3d_Curve& aCurve, |
267 | const Standard_Real U1, |
268 | const Standard_Real U2, |
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269 | const Quantity_Length /*aDeflection*/, |
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270 | TColgp_SequenceOfPnt& Points, |
271 | const Standard_Integer NbPoints, |
272 | const Standard_Boolean drawCurve) |
273 | { |
274 | DrawCurve(aCurve,Prs3d_Root::CurrentGroup(aPresentation),NbPoints,U1,U2,Points,drawCurve); |
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275 | } |
276 | |
277 | |
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278 | //================================================================== |
279 | // function: Add |
280 | // purpose: |
281 | //================================================================== |
282 | void StdPrs_Curve::Add (const Handle (Prs3d_Presentation)& aPresentation, |
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283 | const Adaptor3d_Curve& aCurve, |
284 | const Standard_Real U1, |
285 | const Standard_Real U2, |
286 | const Handle (Prs3d_Drawer)& aDrawer, |
287 | const Standard_Boolean drawCurve) |
288 | { |
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289 | Prs3d_Root::CurrentGroup(aPresentation)->SetPrimitivesAspect(aDrawer->LineAspect()->Aspect()); |
290 | |
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291 | Standard_Real V1 = U1; |
292 | Standard_Real V2 = U2; |
293 | |
294 | if (Precision::IsNegativeInfinite(V1)) V1 = -aDrawer->MaximalParameterValue(); |
295 | if (Precision::IsPositiveInfinite(V2)) V2 = aDrawer->MaximalParameterValue(); |
296 | |
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297 | const Standard_Integer NbPoints = aDrawer->Discretisation(); |
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298 | TColgp_SequenceOfPnt Pnts; |
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299 | DrawCurve(aCurve,Prs3d_Root::CurrentGroup(aPresentation),NbPoints,V1,V2,Pnts,drawCurve); |
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300 | |
301 | if (aDrawer->LineArrowDraw()) { |
302 | gp_Pnt Location; |
303 | gp_Vec Direction; |
304 | aCurve.D1(aCurve.LastParameter(),Location,Direction); |
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305 | Prs3d_Arrow::Draw (aPresentation,Location,gp_Dir(Direction), |
306 | aDrawer->ArrowAspect()->Angle(), |
307 | aDrawer->ArrowAspect()->Length()); |
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308 | } |
309 | } |
310 | |
311 | |
312 | //================================================================== |
313 | // function: Match |
314 | // purpose: |
315 | //================================================================== |
316 | Standard_Boolean StdPrs_Curve::Match |
317 | (const Quantity_Length X, |
318 | const Quantity_Length Y, |
319 | const Quantity_Length Z, |
320 | const Quantity_Length aDistance, |
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321 | const Adaptor3d_Curve& aCurve, |
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322 | const Handle (Prs3d_Drawer)& aDrawer) |
323 | { |
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324 | Standard_Real V1, V2; |
325 | FindLimits(aCurve, aDrawer->MaximalParameterValue(), V1, V2); |
326 | |
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327 | const Standard_Integer NbPoints = aDrawer->Discretisation(); |
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328 | return MatchCurve(X,Y,Z,aDistance,aCurve, |
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329 | aDrawer->MaximalChordialDeviation(),NbPoints,V1,V2); |
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330 | |
331 | } |
332 | |
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333 | |
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334 | //================================================================== |
335 | // function: Match |
336 | // purpose: |
337 | //================================================================== |
338 | Standard_Boolean StdPrs_Curve::Match |
339 | (const Quantity_Length X, |
340 | const Quantity_Length Y, |
341 | const Quantity_Length Z, |
342 | const Quantity_Length aDistance, |
343 | const Adaptor3d_Curve& aCurve, |
344 | const Quantity_Length aDeflection, |
345 | const Standard_Real aLimit, |
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346 | const Standard_Integer NbPoints) |
347 | { |
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348 | Standard_Real V1, V2; |
349 | FindLimits(aCurve, aLimit, V1, V2); |
350 | |
351 | return MatchCurve(X,Y,Z,aDistance,aCurve, |
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352 | aDeflection,NbPoints,V1,V2); |
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353 | } |
354 | |
355 | |
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356 | //================================================================== |
357 | // function: Match |
358 | // purpose: |
359 | //================================================================== |
360 | Standard_Boolean StdPrs_Curve::Match |
361 | (const Quantity_Length X, |
362 | const Quantity_Length Y, |
363 | const Quantity_Length Z, |
364 | const Quantity_Length aDistance, |
365 | const Adaptor3d_Curve& aCurve, |
366 | const Standard_Real U1, |
367 | const Standard_Real U2, |
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368 | const Handle (Prs3d_Drawer)& aDrawer) |
369 | { |
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370 | Standard_Real V1 = U1; |
371 | Standard_Real V2 = U2; |
372 | |
373 | if (Precision::IsNegativeInfinite(V1)) V1 = -aDrawer->MaximalParameterValue(); |
374 | if (Precision::IsPositiveInfinite(V2)) V2 = aDrawer->MaximalParameterValue(); |
375 | |
376 | return MatchCurve(X,Y,Z,aDistance,aCurve, |
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377 | aDrawer->MaximalChordialDeviation(), |
378 | aDrawer->Discretisation(),V1,V2); |
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379 | } |
380 | |
381 | |
382 | //================================================================== |
383 | // function: Match |
384 | // purpose: |
385 | //================================================================== |
386 | Standard_Boolean StdPrs_Curve::Match |
387 | (const Quantity_Length X, |
388 | const Quantity_Length Y, |
389 | const Quantity_Length Z, |
390 | const Quantity_Length aDistance, |
391 | const Adaptor3d_Curve& aCurve, |
392 | const Standard_Real U1, |
393 | const Standard_Real U2, |
394 | const Quantity_Length aDeflection, |
395 | const Standard_Integer aNbPoints) |
396 | { |
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397 | return MatchCurve(X,Y,Z,aDistance,aCurve,aDeflection,aNbPoints,U1,U2); |
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398 | } |