| 1 | // Created on: 1992-05-06 |
| 2 | // Created by: Laurent BUCHARD |
| 3 | // Copyright (c) 1992-1999 Matra Datavision |
| 4 | // Copyright (c) 1999-2012 OPEN CASCADE SAS |
| 5 | // |
| 6 | // The content of this file is subject to the Open CASCADE Technology Public |
| 7 | // License Version 6.5 (the "License"). You may not use the content of this file |
| 8 | // except in compliance with the License. Please obtain a copy of the License |
| 9 | // at http://www.opencascade.org and read it completely before using this file. |
| 10 | // |
| 11 | // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its |
| 12 | // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France. |
| 13 | // |
| 14 | // The Original Code and all software distributed under the License is |
| 15 | // distributed on an "AS IS" basis, without warranty of any kind, and the |
| 16 | // Initial Developer hereby disclaims all such warranties, including without |
| 17 | // limitation, any warranties of merchantability, fitness for a particular |
| 18 | // purpose or non-infringement. Please see the License for the specific terms |
| 19 | // and conditions governing the rights and limitations under the License. |
| 20 | |
| 21 | // a modifier le cas de 2 points confondus ( Insert a la place d'append ? ) |
| 22 | |
| 23 | #include <IntCurve_IntConicConic.jxx> |
| 24 | |
| 25 | #include <IntCurve_IConicTool.hxx> |
| 26 | #include <IntCurve_PConic.hxx> |
| 27 | #include <IntRes2d_Domain.hxx> |
| 28 | #include <gp.hxx> |
| 29 | #include <IntCurve_IntConicConic_Tool.hxx> |
| 30 | #include <IntImpParGen.hxx> |
| 31 | #include <IntCurve_IntConicConic_1.hxx> |
| 32 | #include <ElCLib.hxx> |
| 33 | #include <Standard_ConstructionError.hxx> |
| 34 | #include <IntRes2d_IntersectionPoint.hxx> |
| 35 | #include <IntRes2d_IntersectionSegment.hxx> |
| 36 | |
| 37 | #include <gp_Pnt2d.hxx> |
| 38 | #include <gp_Vec2d.hxx> |
| 39 | #include <Precision.hxx> |
| 40 | #include <IntRes2d_TypeTrans.hxx> |
| 41 | |
| 42 | Standard_Boolean Affichage=Standard_False; |
| 43 | Standard_Boolean AffichageGraph=Standard_True; |
| 44 | |
| 45 | //modified by NIZHNY-MKK Tue Feb 15 10:53:34 2000.BEGIN |
| 46 | // #define TOLERANCE_ANGULAIRE 0.00000001 |
| 47 | #define TOLERANCE_ANGULAIRE 1.e-15 //the reason is at least to make an accordance between transition and position computation. |
| 48 | //modified by NIZHNY-MKK Tue Feb 15 10:53:45 2000.END |
| 49 | |
| 50 | const Standard_Real PIsur2 = 0.5*M_PI; |
| 51 | |
| 52 | //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 53 | IntRes2d_Position FindPositionLL(Standard_Real&,const IntRes2d_Domain&); |
| 54 | const IntRes2d_IntersectionPoint SegmentToPoint( const IntRes2d_IntersectionPoint& Pa |
| 55 | ,const IntRes2d_Transition& T1a |
| 56 | ,const IntRes2d_Transition& T2a |
| 57 | ,const IntRes2d_IntersectionPoint& Pb |
| 58 | ,const IntRes2d_Transition& T1b |
| 59 | ,const IntRes2d_Transition& T2b); |
| 60 | //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 61 | void ProjectOnC2AndIntersectWithC2Domain(const gp_Circ2d& Circle1 |
| 62 | ,const gp_Circ2d& Circle2 |
| 63 | ,PeriodicInterval& C1DomainAndRes |
| 64 | ,PeriodicInterval& DomainC2 |
| 65 | ,PeriodicInterval* SolutionC1 |
| 66 | ,PeriodicInterval* SolutionC2 |
| 67 | ,Standard_Integer &NbSolTotal |
| 68 | ,const Standard_Boolean IdentCircles) |
| 69 | { |
| 70 | |
| 71 | if(C1DomainAndRes.IsNull()) return; |
| 72 | //------------------------------------------------------------------------- |
| 73 | //-- On cherche l intervalle correspondant sur C2 |
| 74 | //-- Puis on intersecte l intervalle avec le domaine de C2 |
| 75 | //-- Enfin, on cherche l intervalle correspondant sur C1 |
| 76 | //-- |
| 77 | Standard_Real C2inf = |
| 78 | ElCLib::CircleParameter(Circle2.Axis() |
| 79 | ,ElCLib::CircleValue(C1DomainAndRes.Binf |
| 80 | ,Circle1.Axis(),Circle1.Radius())); |
| 81 | Standard_Real C2sup = |
| 82 | ElCLib::CircleParameter(Circle2.Axis() |
| 83 | ,ElCLib::CircleValue(C1DomainAndRes.Bsup |
| 84 | ,Circle1.Axis(),Circle1.Radius())); |
| 85 | |
| 86 | PeriodicInterval C2Inter(C2inf,C2sup); |
| 87 | |
| 88 | if(!IdentCircles) { |
| 89 | if(C2Inter.Length() > M_PI) |
| 90 | C2Inter.Complement(); |
| 91 | } |
| 92 | else { |
| 93 | if(C2sup<=C2inf) C2sup+=PIpPI; |
| 94 | if(C2inf>=PIpPI) { |
| 95 | C2sup-=PIpPI; |
| 96 | C2inf-=PIpPI; |
| 97 | } |
| 98 | C2Inter.Binf=C2inf; |
| 99 | C2Inter.Bsup=C2sup; //--- Verifier la longueur de l'intervalle sur C2 |
| 100 | C2Inter.Bsup=C2inf+C1DomainAndRes.Bsup-C1DomainAndRes.Binf; |
| 101 | } |
| 102 | |
| 103 | PeriodicInterval C2InterAndDomain[2]; |
| 104 | |
| 105 | for(Standard_Integer i=0; i<2 ; i++) { |
| 106 | C2InterAndDomain[i]=(i==0)? DomainC2.FirstIntersection(C2Inter) |
| 107 | : DomainC2.SecondIntersection(C2Inter); |
| 108 | |
| 109 | if(!C2InterAndDomain[i].IsNull()) { |
| 110 | |
| 111 | Standard_Real C1inf = |
| 112 | ElCLib::CircleParameter(Circle1.Axis() |
| 113 | ,ElCLib::CircleValue(C2InterAndDomain[i].Binf |
| 114 | ,Circle2.Axis(),Circle2.Radius())); |
| 115 | Standard_Real C1sup = |
| 116 | ElCLib::CircleParameter(Circle1.Axis() |
| 117 | ,ElCLib::CircleValue(C2InterAndDomain[i].Bsup |
| 118 | ,Circle2.Axis(),Circle2.Radius())); |
| 119 | |
| 120 | SolutionC1[NbSolTotal]=PeriodicInterval(C1inf,C1sup); |
| 121 | if(!IdentCircles) { |
| 122 | if(SolutionC1[NbSolTotal].Length() > M_PI) |
| 123 | SolutionC1[NbSolTotal].Complement(); |
| 124 | } |
| 125 | else { |
| 126 | if(SolutionC1[NbSolTotal].Bsup <= SolutionC1[NbSolTotal].Binf) { |
| 127 | SolutionC1[NbSolTotal].Bsup+=PIpPI; |
| 128 | } |
| 129 | if(SolutionC1[NbSolTotal].Binf>=PIpPI) { |
| 130 | SolutionC1[NbSolTotal].Binf-=PIpPI; |
| 131 | SolutionC1[NbSolTotal].Bsup-=PIpPI; |
| 132 | } |
| 133 | } |
| 134 | SolutionC2[NbSolTotal]=C2InterAndDomain[i]; |
| 135 | NbSolTotal++; |
| 136 | } |
| 137 | } |
| 138 | } |
| 139 | //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 140 | //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 141 | void CircleCircleGeometricIntersection(const gp_Circ2d& C1 |
| 142 | ,const gp_Circ2d& C2 |
| 143 | ,const Standard_Real Tol |
| 144 | ,const Standard_Real TolTang |
| 145 | ,PeriodicInterval& C1_Res1 |
| 146 | ,PeriodicInterval& C1_Res2 |
| 147 | ,Standard_Integer& nbsol) { |
| 148 | |
| 149 | Standard_Real C1_binf1,C1_binf2=0,C1_bsup1,C1_bsup2=0; |
| 150 | Standard_Real dO1O2=(C1.Location()).Distance(C2.Location()); |
| 151 | Standard_Real R1=C1.Radius(); |
| 152 | Standard_Real R2=C2.Radius(); |
| 153 | Standard_Real AbsR1mR2=Abs(R1-R2); |
| 154 | //---------------------------------------------------------------- |
| 155 | if(dO1O2 > (R1+R2+Tol)) { |
| 156 | if(dO1O2 > (R1+R2+TolTang)) { |
| 157 | nbsol=0; |
| 158 | return; |
| 159 | } |
| 160 | else { |
| 161 | C1_binf1 = 0.0; |
| 162 | C1_bsup1 = 0.0; |
| 163 | nbsol = 1; |
| 164 | } |
| 165 | } |
| 166 | //---------------------------------------------------------------- |
| 167 | else if(dO1O2 <= Tol && AbsR1mR2<=Tol) { |
| 168 | nbsol=3; |
| 169 | return; |
| 170 | } |
| 171 | else { |
| 172 | //---------------------------------------------------------------- |
| 173 | Standard_Real R1pR2=R1+R2; |
| 174 | Standard_Real R1pTol=R1+Tol; |
| 175 | Standard_Real R1mTol=R1-Tol; |
| 176 | // Standard_Real R1R1=R1*R1; |
| 177 | Standard_Real R2R2=R2*R2; |
| 178 | Standard_Real R1pTolR1pTol=R1pTol*R1pTol; |
| 179 | Standard_Real R1mTolR1mTol=R1mTol*R1mTol; |
| 180 | Standard_Real dO1O2dO1O2=dO1O2*dO1O2; |
| 181 | Standard_Real dAlpha1; |
| 182 | //--------------------------------------------------------------- Cas |
| 183 | //-- C2 coupe le cercle C1+ (=C(x1,y1,R1+Tol)) |
| 184 | //-- 1 seul segment donne par Inter C2 C1+ |
| 185 | //-- |
| 186 | if(dO1O2 > R1pR2-Tol) { |
| 187 | Standard_Real dx=(R1pTolR1pTol+dO1O2dO1O2-R2R2)/(dO1O2+dO1O2); |
| 188 | Standard_Real dy=(R1pTolR1pTol-dx*dx); |
| 189 | dy=(dy>=0.0)? Sqrt(dy) : 0.0; |
| 190 | dAlpha1=ATan2(dy,dx); |
| 191 | |
| 192 | C1_binf1=-dAlpha1; |
| 193 | C1_bsup1=dAlpha1; |
| 194 | nbsol=1; |
| 195 | } |
| 196 | //-------------------------------------------------------------------- |
| 197 | //-- 2 segments donnes par Inter C2 avec C1- C1 C1+ |
| 198 | //-- Seul le signe de dx change si dO1O2 < Max(R1,R2) |
| 199 | //-- |
| 200 | else if(dO1O2 > AbsR1mR2-Tol) { // -- + |
| 201 | //------------------- Intersection C2 C1+ -------------------------- |
| 202 | Standard_Real dx=(R1pTolR1pTol+dO1O2dO1O2-R2R2)/(dO1O2+dO1O2); |
| 203 | Standard_Real dy=(R1pTolR1pTol-dx*dx); |
| 204 | dy=(dy>=0.0)? Sqrt(dy) : 0.0; |
| 205 | |
| 206 | dAlpha1=ATan2(dy,dx); |
| 207 | C1_binf1=-dAlpha1; C1_bsup2=dAlpha1; //-- |...? ?...| Sur C1 |
| 208 | |
| 209 | //------------------ Intersection C2 C1- ------------------------- |
| 210 | dx=(R1mTolR1mTol+dO1O2dO1O2-R2R2)/(dO1O2+dO1O2); |
| 211 | dy=(R1mTolR1mTol-dx*dx); |
| 212 | dy=(dy>=0.0)? Sqrt(dy) : 0.0; |
| 213 | dAlpha1=ATan2(dy,dx); |
| 214 | |
| 215 | C1_binf2=dAlpha1; C1_bsup1=-dAlpha1; //-- |...x x...| Sur C1 |
| 216 | nbsol=2; |
| 217 | //------------------------------ |
| 218 | //-- Les 2 intervalles sont ils |
| 219 | //-- en fait un seul inter ? |
| 220 | //-- |
| 221 | if(dy==0) { //-- Les 2 bornes internes sont identiques |
| 222 | C1_bsup1 = C1_bsup2; |
| 223 | nbsol = 1; |
| 224 | } |
| 225 | else { |
| 226 | if(C1_binf1>C1_bsup1) { |
| 227 | dAlpha1 = C1_binf1; C1_binf1 = C1_bsup1; C1_bsup1 = dAlpha1; |
| 228 | } |
| 229 | if(C1_binf2>C1_bsup2) { |
| 230 | dAlpha1 = C1_binf2; C1_binf2 = C1_bsup2; C1_bsup2 = dAlpha1; |
| 231 | } |
| 232 | if( ((C1_binf1<=C1_bsup2) && (C1_binf1>=C1_binf2)) |
| 233 | || ((C1_bsup1<=C1_bsup2) && (C1_bsup1>=C1_binf2))) { |
| 234 | if(C1_binf1 > C1_binf2) C1_binf1 = C1_binf2; |
| 235 | if(C1_binf1 > C1_bsup2) C1_binf1 = C1_bsup2; |
| 236 | if(C1_bsup1 < C1_binf2) C1_bsup1 = C1_binf2; |
| 237 | if(C1_bsup1 < C1_bsup2) C1_bsup1 = C1_bsup2; |
| 238 | nbsol=1; |
| 239 | } |
| 240 | } |
| 241 | } |
| 242 | //-------------------------------------------------------------- |
| 243 | else { |
| 244 | if((dO1O2 > AbsR1mR2-TolTang) && (AbsR1mR2-TolTang)>0.0) { |
| 245 | C1_binf1=0.0; |
| 246 | C1_bsup1=0.0; |
| 247 | nbsol = 1; |
| 248 | } |
| 249 | else { |
| 250 | nbsol=0; return ; |
| 251 | } |
| 252 | } |
| 253 | } |
| 254 | |
| 255 | //-- cout<<" C1_binf1:"<<C1_binf1; |
| 256 | //-- cout<<" C1_bsup1:"<<C1_bsup1; |
| 257 | //-- cout<<" C1_binf2:"<<C1_binf2; |
| 258 | //-- cout<<" C1_bsup2:"<<C1_bsup2<<endl; |
| 259 | //---------------------------------------------------------------- |
| 260 | //-- Mise en forme des resultats : |
| 261 | //-- Les calculs ont ete fait dans le repere x1,y1, (O1,O2) |
| 262 | //-- On se ramene au repere propre a C1 |
| 263 | |
| 264 | gp_Vec2d Axe1=C1.XAxis().Direction(); |
| 265 | gp_Vec2d AxeO1O2=gp_Vec2d(C1.Location(),C2.Location()); |
| 266 | |
| 267 | Standard_Real dAngle1; |
| 268 | if(AxeO1O2.Magnitude() <= gp::Resolution()) |
| 269 | dAngle1=Axe1.Angle(C2.XAxis().Direction()); |
| 270 | else |
| 271 | dAngle1=Axe1.Angle(AxeO1O2); |
| 272 | |
| 273 | if(C1.IsDirect() == Standard_False) { |
| 274 | dAngle1 = -dAngle1; |
| 275 | } |
| 276 | |
| 277 | |
| 278 | C1_binf1+=dAngle1; C1_bsup1+=dAngle1; |
| 279 | |
| 280 | //-- par construction aucun des segments ne peut exceder PI |
| 281 | //-- (permet de ne pas gerer trop de cas differents) |
| 282 | |
| 283 | C1_Res1.SetValues(C1_binf1,C1_bsup1); |
| 284 | if(C1_Res1.Length() > M_PI) C1_Res1.Complement(); |
| 285 | |
| 286 | if(nbsol==2) { |
| 287 | C1_binf2+=dAngle1; C1_bsup2+=dAngle1; |
| 288 | C1_Res2.SetValues(C1_binf2,C1_bsup2); |
| 289 | if(C1_Res2.Length() > M_PI) C1_Res2.Complement(); |
| 290 | } |
| 291 | else { |
| 292 | C1_Res2.SetNull(); |
| 293 | } |
| 294 | } |
| 295 | //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 296 | //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 297 | void ProjectOnLAndIntersectWithLDomain(const gp_Circ2d& Circle |
| 298 | ,const gp_Lin2d& Line |
| 299 | ,PeriodicInterval& CDomainAndRes |
| 300 | ,Interval& LDomain |
| 301 | ,PeriodicInterval* CircleSolution |
| 302 | ,Interval* LineSolution |
| 303 | ,Standard_Integer &NbSolTotal |
| 304 | ,const IntRes2d_Domain& RefLineDomain |
| 305 | // ,const IntRes2d_Domain& ) |
| 306 | ,const IntRes2d_Domain& ) |
| 307 | { |
| 308 | |
| 309 | |
| 310 | if(CDomainAndRes.IsNull()) return; |
| 311 | //------------------------------------------------------------------------- |
| 312 | //-- On cherche l intervalle correspondant sur C2 |
| 313 | //-- Puis on intersecte l intervalle avec le domaine de C2 |
| 314 | //-- Enfin, on cherche l intervalle correspondant sur C1 |
| 315 | //-- |
| 316 | |
| 317 | Standard_Real Linf=ElCLib::Parameter(Line |
| 318 | ,ElCLib::CircleValue(CDomainAndRes.Binf |
| 319 | ,Circle.Axis() |
| 320 | ,Circle.Radius())); |
| 321 | Standard_Real Lsup=ElCLib::Parameter(Line |
| 322 | ,ElCLib::CircleValue(CDomainAndRes.Bsup |
| 323 | ,Circle.Axis() |
| 324 | ,Circle.Radius())); |
| 325 | |
| 326 | Interval LInter(Linf,Lsup); //-- Necessairement Borne |
| 327 | |
| 328 | Interval LInterAndDomain=LDomain.IntersectionWithBounded(LInter); |
| 329 | |
| 330 | if(!LInterAndDomain.IsNull) { |
| 331 | |
| 332 | Standard_Real DomLinf = (RefLineDomain.HasFirstPoint())? RefLineDomain.FirstParameter() : -Precision::Infinite(); |
| 333 | Standard_Real DomLsup = (RefLineDomain.HasLastPoint())? RefLineDomain.LastParameter() : Precision::Infinite(); |
| 334 | |
| 335 | Linf = LInterAndDomain.Binf; |
| 336 | Lsup = LInterAndDomain.Bsup; |
| 337 | |
| 338 | if(Linf<DomLinf) { |
| 339 | Linf = DomLinf; |
| 340 | } |
| 341 | if(Lsup<DomLinf) { |
| 342 | Lsup = DomLinf; |
| 343 | } |
| 344 | |
| 345 | if(Linf>DomLsup) { |
| 346 | Linf = DomLsup; |
| 347 | } |
| 348 | if(Lsup>DomLsup) { |
| 349 | Lsup = DomLsup; |
| 350 | } |
| 351 | |
| 352 | LInterAndDomain.Binf = Linf; |
| 353 | LInterAndDomain.Bsup = Lsup; |
| 354 | |
| 355 | #if 0 |
| 356 | Standard_Real Cinf = |
| 357 | ElCLib::CircleParameter(Circle.Axis() |
| 358 | ,ElCLib::LineValue(LInterAndDomain.Binf, |
| 359 | Line.Position())); |
| 360 | Standard_Real Csup = |
| 361 | ElCLib::CircleParameter(Circle.Axis() |
| 362 | ,ElCLib::LineValue(LInterAndDomain.Bsup |
| 363 | ,Line.Position())); |
| 364 | |
| 365 | if(Cinf<CDomainAndRes.Binf) Cinf = CDomainAndRes.Binf; |
| 366 | if(Csup>CDomainAndRes.Bsup) Csup = CDomainAndRes.Bsup; |
| 367 | #else |
| 368 | Standard_Real Cinf=CDomainAndRes.Binf; |
| 369 | Standard_Real Csup=CDomainAndRes.Bsup; |
| 370 | #endif |
| 371 | if(Cinf>=Csup) { Cinf = CDomainAndRes.Binf; Csup = CDomainAndRes.Bsup; } |
| 372 | CircleSolution[NbSolTotal]=PeriodicInterval(Cinf,Csup); |
| 373 | if(CircleSolution[NbSolTotal].Length() > M_PI) |
| 374 | CircleSolution[NbSolTotal].Complement(); |
| 375 | |
| 376 | LineSolution[NbSolTotal]=LInterAndDomain; |
| 377 | NbSolTotal++; |
| 378 | } |
| 379 | } |
| 380 | |
| 381 | //======================================================================= |
| 382 | //function : LineCircleGeometricIntersection |
| 383 | //purpose : |
| 384 | //~~ On cherche des segments d intersection dans le `tuyau` |
| 385 | //~~ R+Tol R-Tol ( Tol est TolConf : Tolerance de confusion d arc) |
| 386 | //~~ On Cherche un point d intersection a une distance TolTang du cercle. |
| 387 | //======================================================================= |
| 388 | void LineCircleGeometricIntersection(const gp_Lin2d& Line, |
| 389 | const gp_Circ2d& Circle, |
| 390 | const Standard_Real Tol, |
| 391 | const Standard_Real TolTang, |
| 392 | PeriodicInterval& CInt1, |
| 393 | PeriodicInterval& CInt2, |
| 394 | Standard_Integer& nbsol) |
| 395 | { |
| 396 | |
| 397 | |
| 398 | Standard_Real dO1O2=Line.Distance(Circle.Location()); |
| 399 | Standard_Real R=Circle.Radius(); |
| 400 | Standard_Real RmTol=R-Tol; |
| 401 | Standard_Real binf1,binf2=0,bsup1,bsup2=0; |
| 402 | |
| 403 | //---------------------------------------------------------------- |
| 404 | if(dO1O2 > (R+Tol)) { //-- pas d intersection avec le 'tuyau' |
| 405 | if(dO1O2 > (R+TolTang)) { |
| 406 | nbsol=0; |
| 407 | return; |
| 408 | } |
| 409 | else { |
| 410 | binf1=0.0; |
| 411 | bsup1=0.0; |
| 412 | nbsol=1; |
| 413 | } |
| 414 | } |
| 415 | else { |
| 416 | //---------------------------------------------------------------- |
| 417 | Standard_Boolean b2Sol; |
| 418 | Standard_Real dAlpha1; |
| 419 | //--------------------------------------------------------------- |
| 420 | //-- Line coupe le cercle Circle+ (=C(x1,y1,R1+Tol)) |
| 421 | b2Sol=Standard_False; |
| 422 | if (R>dO1O2+TolTang) { |
| 423 | Standard_Real aX2, aTol2; |
| 424 | // |
| 425 | aTol2=Tol*Tol; |
| 426 | aX2=4.*(R*R-dO1O2*dO1O2); |
| 427 | if (aX2>aTol2) { |
| 428 | b2Sol=!b2Sol; |
| 429 | } |
| 430 | } |
| 431 | if(dO1O2 > RmTol && !b2Sol) { |
| 432 | //if(dO1O2 > RmTol) { |
| 433 | Standard_Real dx=dO1O2; |
| 434 | Standard_Real dy=0.0; //(RpTol*RpTol-dx*dx); //Patch !!! |
| 435 | dy=(dy>=0.0)? Sqrt(dy) : 0.0; |
| 436 | dAlpha1=ATan2(dy,dx); |
| 437 | |
| 438 | binf1=-dAlpha1; |
| 439 | bsup1=dAlpha1; |
| 440 | nbsol=1; |
| 441 | } |
| 442 | //-------------------------------------------------------------------- |
| 443 | //-- 2 segments donnes par Inter Line avec Circle- Circle+ |
| 444 | //-- |
| 445 | else { |
| 446 | //------------------- Intersection Line Circle+ -------------------------- |
| 447 | Standard_Real dx=dO1O2; |
| 448 | Standard_Real dy=R*R-dx*dx; //(RpTol*RpTol-dx*dx); //Patch !!! |
| 449 | dy=(dy>=0.0)? Sqrt(dy) : 0.0; |
| 450 | |
| 451 | dAlpha1=ATan2(dy,dx); |
| 452 | binf1=-dAlpha1; bsup2=dAlpha1; //-- |...? ?...| Sur C1 |
| 453 | |
| 454 | //------------------ Intersection Line Circle- ------------------------- |
| 455 | dy=R*R-dx*dx; //(RmTol*RmTol-dx*dx); //Patch !!! |
| 456 | dy=(dy>=0.0)? Sqrt(dy) : 0.0; |
| 457 | dAlpha1=ATan2(dy,dx); |
| 458 | |
| 459 | binf2=dAlpha1; bsup1=-dAlpha1; //-- |...x x...| Sur C1 |
| 460 | |
| 461 | if((dAlpha1*R)<(Max(Tol,TolTang))) { |
| 462 | bsup1 = bsup2; |
| 463 | nbsol = 1; |
| 464 | } |
| 465 | else { |
| 466 | nbsol=2; |
| 467 | } |
| 468 | } |
| 469 | } |
| 470 | //-------------------------------------------------------------- |
| 471 | //-- Mise en forme des resultats : |
| 472 | //-- Les calculs ont ete fait dans le repere x1,y1, (O1,O2) |
| 473 | //-- On se ramene au repere propre a C1 |
| 474 | |
| 475 | Standard_Real dAngle1=(Circle.XAxis().Direction()).Angle(Line.Direction()); |
| 476 | |
| 477 | #if 0 |
| 478 | //--------------------------------------------- |
| 479 | //-- Si le cercle est indirect alors l origine |
| 480 | //-- est vue en -dAngle1. |
| 481 | //-- |
| 482 | if(Circle.IsDirect() == Standard_False) { |
| 483 | dAngle1 = -dAngle1; |
| 484 | } |
| 485 | #endif |
| 486 | |
| 487 | |
| 488 | Standard_Real a,b,c,d; |
| 489 | Line.Coefficients(a,b,c); |
| 490 | |
| 491 | d = a*Circle.Location().X() + b*Circle.Location().Y() + c; |
| 492 | |
| 493 | if(d>0.0) dAngle1+= PIsur2; |
| 494 | else dAngle1-= PIsur2; |
| 495 | |
| 496 | |
| 497 | if(dAngle1<0.0) dAngle1+=PIpPI; |
| 498 | else if(dAngle1>PIpPI) dAngle1-=PIpPI; |
| 499 | |
| 500 | |
| 501 | binf1+=dAngle1; bsup1+=dAngle1; |
| 502 | |
| 503 | //-- par construction aucun des segments ne peut exceder PI |
| 504 | //-- (permet de ne pas gerer trop de cas differents) |
| 505 | |
| 506 | if(Circle.IsDirect() == Standard_False) { |
| 507 | Standard_Real t=binf1; binf1=bsup1; bsup1=t; |
| 508 | binf1 = -binf1; |
| 509 | bsup1 = -bsup1; |
| 510 | } |
| 511 | |
| 512 | |
| 513 | CInt1.SetValues(binf1,bsup1); |
| 514 | if(CInt1.Length() > M_PI) CInt1.Complement(); |
| 515 | |
| 516 | |
| 517 | if(nbsol==2) { |
| 518 | binf2+=dAngle1; bsup2+=dAngle1; |
| 519 | |
| 520 | if(Circle.IsDirect() == Standard_False) { |
| 521 | Standard_Real t=binf2; binf2=bsup2; bsup2=t; |
| 522 | binf2 = -binf2; |
| 523 | bsup2 = -bsup2; |
| 524 | } |
| 525 | |
| 526 | CInt2.SetValues(binf2,bsup2); |
| 527 | if(CInt2.Length() > M_PI) CInt2.Complement(); |
| 528 | } |
| 529 | // Modified by Sergey KHROMOV - Thu Oct 26 17:51:05 2000 Begin |
| 530 | else { |
| 531 | if (CInt1.Bsup > PIpPI && CInt1.Binf < PIpPI) { |
| 532 | nbsol = 2; |
| 533 | binf2 = CInt1.Binf; |
| 534 | bsup2 = PIpPI; |
| 535 | binf1 = 0.; |
| 536 | CInt1.SetValues(binf1,CInt1.Bsup - PIpPI); |
| 537 | if(CInt1.Length() > M_PI) CInt1.Complement(); |
| 538 | CInt2.SetValues(binf2,bsup2); |
| 539 | if(CInt2.Length() > M_PI) CInt2.Complement(); |
| 540 | } |
| 541 | } |
| 542 | // Modified by Sergey KHROMOV - Thu Oct 26 17:51:13 2000 End |
| 543 | } |
| 544 | //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 545 | //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 546 | void DomainIntersection(const IntRes2d_Domain& Domain |
| 547 | ,const Standard_Real U1inf |
| 548 | ,const Standard_Real U1sup |
| 549 | ,Standard_Real& Res1inf |
| 550 | ,Standard_Real& Res1sup |
| 551 | ,IntRes2d_Position& PosInf |
| 552 | ,IntRes2d_Position& PosSup) { |
| 553 | |
| 554 | if(Domain.HasFirstPoint()) { |
| 555 | if(U1sup < (Domain.FirstParameter()-Domain.FirstTolerance())) { |
| 556 | Res1inf=1; Res1sup=-1; |
| 557 | return; |
| 558 | } |
| 559 | if(U1inf>(Domain.FirstParameter()+Domain.FirstTolerance())) { |
| 560 | Res1inf=U1inf; |
| 561 | PosInf=IntRes2d_Middle; |
| 562 | } |
| 563 | else { |
| 564 | Res1inf=Domain.FirstParameter(); |
| 565 | PosInf=IntRes2d_Head; |
| 566 | } |
| 567 | } |
| 568 | else { |
| 569 | Res1inf=U1inf; |
| 570 | PosInf=IntRes2d_Middle; |
| 571 | } |
| 572 | |
| 573 | if(Domain.HasLastPoint()) { |
| 574 | if(U1inf >(Domain.LastParameter()+Domain.LastTolerance())) { |
| 575 | Res1inf=1; Res1sup=-1; |
| 576 | return; |
| 577 | } |
| 578 | if(U1sup<(Domain.LastParameter()-Domain.LastTolerance())) { |
| 579 | Res1sup=U1sup; |
| 580 | PosSup=IntRes2d_Middle; |
| 581 | } |
| 582 | else { |
| 583 | Res1sup=Domain.LastParameter(); |
| 584 | PosSup=IntRes2d_End; |
| 585 | } |
| 586 | } |
| 587 | else { |
| 588 | Res1sup=U1sup; |
| 589 | PosSup=IntRes2d_Middle; |
| 590 | } |
| 591 | //-- Si un des points est en bout , |
| 592 | //-- on s assure que les parametres sont corrects |
| 593 | if(Res1inf>Res1sup) { |
| 594 | if(PosSup==IntRes2d_Middle) { |
| 595 | Res1sup=Res1inf; |
| 596 | } |
| 597 | else { |
| 598 | Res1inf=Res1sup; |
| 599 | } |
| 600 | } |
| 601 | //--- Traitement des cas ou une intersection vraie est dans la tolerance |
| 602 | //-- d un des bouts |
| 603 | /*if(PosInf==IntRes2d_Head) { |
| 604 | if(Res1sup <= (Res1inf+Domain.FirstTolerance())) { |
| 605 | Res1sup=Res1inf; |
| 606 | PosSup=IntRes2d_Head; |
| 607 | } |
| 608 | } |
| 609 | if(PosSup==IntRes2d_End) { |
| 610 | if(Res1inf >= (Res1sup-Domain.LastTolerance())) { |
| 611 | Res1inf=Res1sup; |
| 612 | PosInf=IntRes2d_End; |
| 613 | } |
| 614 | }*/ |
| 615 | } |
| 616 | //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 617 | //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 618 | void LineLineGeometricIntersection(const gp_Lin2d& L1 |
| 619 | ,const gp_Lin2d& L2 |
| 620 | ,const Standard_Real Tol |
| 621 | ,Standard_Real& U1 |
| 622 | ,Standard_Real& U2 |
| 623 | ,Standard_Real& SinDemiAngle |
| 624 | ,Standard_Integer& nbsol) { |
| 625 | |
| 626 | Standard_Real U1x=L1.Direction().X(); |
| 627 | Standard_Real U1y=L1.Direction().Y(); |
| 628 | Standard_Real U2x=L2.Direction().X(); |
| 629 | Standard_Real U2y=L2.Direction().Y(); |
| 630 | Standard_Real Uo21x = L2.Location().X() - L1.Location().X(); |
| 631 | Standard_Real Uo21y = L2.Location().Y() - L1.Location().Y(); |
| 632 | |
| 633 | Standard_Real D=U1y*U2x-U1x*U2y; |
| 634 | |
| 635 | //modified by NIZHNY-MKK Tue Feb 15 10:54:04 2000.BEGIN |
| 636 | // if(Abs(D)<1e-15) { //-- Droites // |
| 637 | if(Abs(D) < TOLERANCE_ANGULAIRE) { |
| 638 | //modified by NIZHNY-MKK Tue Feb 15 10:54:11 2000.END |
| 639 | D=U1y*Uo21x - U1x*Uo21y; |
| 640 | nbsol=(Abs(D)<=Tol)? 2 : 0; |
| 641 | } |
| 642 | else { |
| 643 | U1=(Uo21y * U2x - Uo21x * U2y)/D; |
| 644 | U2=(Uo21y * U1x - Uo21x * U1y)/D; |
| 645 | |
| 646 | //------------------- Calcul du Sin du demi angle entre L1 et L2 |
| 647 | //---- |
| 648 | if(D<0.0) D=-D; |
| 649 | if(D>1.0) D=1.0; //-- Deja vu ! |
| 650 | SinDemiAngle=Sin(0.5*ASin(D)); |
| 651 | nbsol=1; |
| 652 | } |
| 653 | } |
| 654 | //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 655 | //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 656 | /*IntCurve_IntConicConic::IntCurve_IntConicConic(const gp_Lin2d& L1 |
| 657 | ,const IntRes2d_Domain& D1 |
| 658 | ,const gp_Lin2d& L2 |
| 659 | ,const IntRes2d_Domain& D2 |
| 660 | ,const Standard_Real TolConf |
| 661 | ,const Standard_Real Tol) { |
| 662 | Perform(L1,D1,L2,D2,TolConf,Tol); |
| 663 | } |
| 664 | |
| 665 | |
| 666 | IntCurve_IntConicConic::IntCurve_IntConicConic(const gp_Lin2d& L1 |
| 667 | ,const IntRes2d_Domain& D1 |
| 668 | ,const gp_Circ2d& C2 |
| 669 | ,const IntRes2d_Domain& D2 |
| 670 | ,const Standard_Real TolConf |
| 671 | ,const Standard_Real Tol) { |
| 672 | |
| 673 | Perform(L1,D1,C2,D2,TolConf,Tol); |
| 674 | } |
| 675 | |
| 676 | |
| 677 | IntCurve_IntConicConic::IntCurve_IntConicConic(const gp_Circ2d& C1 |
| 678 | ,const IntRes2d_Domain& D1 |
| 679 | ,const gp_Circ2d& C2 |
| 680 | ,const IntRes2d_Domain& D2 |
| 681 | ,const Standard_Real TolConf |
| 682 | ,const Standard_Real Tol) { |
| 683 | SetReversedParameters(Standard_False); |
| 684 | Perform(C1,D1,C2,D2,TolConf,Tol); |
| 685 | }*/ //amv OCC12547 |
| 686 | //---------------------------------------------------------------------- |
| 687 | void IntCurve_IntConicConic::Perform(const gp_Circ2d& Circle1 |
| 688 | ,const IntRes2d_Domain& DomainCirc1 |
| 689 | ,const gp_Circ2d& _Circle2 |
| 690 | ,const IntRes2d_Domain& _DomainCirc2 |
| 691 | ,const Standard_Real TolConf,const Standard_Real Tol) { |
| 692 | |
| 693 | |
| 694 | //-- TRES TRES MAL FAIT A REPRENDRE UN JOUR .... (lbr Octobre 98) |
| 695 | gp_Circ2d Circle2=_Circle2; |
| 696 | IntRes2d_Domain DomainCirc2=_DomainCirc2; |
| 697 | Standard_Boolean IndirectCircles=Standard_False; |
| 698 | if(Circle1.IsDirect() != _Circle2.IsDirect()) { |
| 699 | IndirectCircles=Standard_True; |
| 700 | Circle2=_Circle2.Reversed(); |
| 701 | DomainCirc2.SetValues(_DomainCirc2.LastPoint(), |
| 702 | PIpPI-_DomainCirc2.LastParameter(), |
| 703 | _DomainCirc2.LastTolerance(), |
| 704 | _DomainCirc2.FirstPoint(), |
| 705 | PIpPI-_DomainCirc2.FirstParameter(), |
| 706 | _DomainCirc2.FirstTolerance()); |
| 707 | DomainCirc2.SetEquivalentParameters(0.0,PIpPI); |
| 708 | } |
| 709 | |
| 710 | this->ResetFields(); |
| 711 | Standard_Integer nbsol=0; |
| 712 | PeriodicInterval C1_Int1,C1_Int2; |
| 713 | |
| 714 | //------- Intersection sans tenir compte du domaine ----> nbsol=0,1,2,3 |
| 715 | CircleCircleGeometricIntersection(Circle1,Circle2,TolConf,Tol,C1_Int1,C1_Int2,nbsol); |
| 716 | done=Standard_True; |
| 717 | |
| 718 | if(nbsol==0) { //-- Pas de solutions |
| 719 | return; |
| 720 | } |
| 721 | |
| 722 | PeriodicInterval C1Domain(DomainCirc1); |
| 723 | //-- On se ramene entre 0 et 2PI |
| 724 | Standard_Real deltat = C1Domain.Bsup-C1Domain.Binf; |
| 725 | if(deltat>=PIpPI) { deltat=PIpPI-1e-14; } |
| 726 | |
| 727 | while(C1Domain.Binf >= PIpPI) C1Domain.Binf-=PIpPI; |
| 728 | while(C1Domain.Binf < 0.0) C1Domain.Binf+=PIpPI; |
| 729 | C1Domain.Bsup=C1Domain.Binf+deltat; |
| 730 | |
| 731 | PeriodicInterval C2Domain(DomainCirc2); |
| 732 | deltat = C2Domain.Bsup-C2Domain.Binf; |
| 733 | if(deltat>=PIpPI) { deltat=PIpPI-1e-14; } |
| 734 | |
| 735 | while(C2Domain.Binf >= PIpPI) C2Domain.Binf-=PIpPI; |
| 736 | while(C2Domain.Binf < 0.0) C2Domain.Binf+=PIpPI; |
| 737 | C2Domain.Bsup=C2Domain.Binf+deltat; |
| 738 | |
| 739 | Standard_Boolean IdentCircles=Standard_False; |
| 740 | |
| 741 | if(nbsol>2) { |
| 742 | //-- Les 2 cercles sont confondus a Tol pres |
| 743 | C1_Int1.SetValues(0,PIpPI); |
| 744 | C1_Int2.SetNull(); |
| 745 | //--------------------------------------------------------------- |
| 746 | //-- Flag utilise pour specifier que les intervalles manipules |
| 747 | //-- peuvent etre de longueur superieure a pi. |
| 748 | //-- Pour des cercles non identiques, on a necessairement cette |
| 749 | //-- condition sur les resultats de l intersection geometrique |
| 750 | //-- ce qui permet de normaliser rapidement les intervalles. |
| 751 | //-- ex: -1 4 -> longueur > PI |
| 752 | //-- donc -1 4 devient 4 , 2*pi-1 |
| 753 | //--------------------------------------------------------------- |
| 754 | IdentCircles=Standard_True; |
| 755 | } |
| 756 | |
| 757 | Standard_Integer NbSolTotal=0; |
| 758 | PeriodicInterval SolutionC1[4]; |
| 759 | PeriodicInterval SolutionC2[4]; |
| 760 | |
| 761 | //---------------------------------------------------------------------- |
| 762 | //----------- Traitement du premier intervalle Geometrique C1_Int1 ---- |
| 763 | //---------------------------------------------------------------------- |
| 764 | //-- NbSolTotal est incremente a chaque Intervalle solution. |
| 765 | //-- On stocke les intervalles dans les tableaux : SolutionC1(C2) |
| 766 | //-- Dimensionnes a 4 elements. |
| 767 | //-- des Exemples faciles donnent 3 Intersections |
| 768 | //-- des Problemes numeriques peuvent en donner 4 ?????? |
| 769 | //-- |
| 770 | PeriodicInterval C1DomainAndRes=C1Domain.FirstIntersection(C1_Int1); |
| 771 | |
| 772 | ProjectOnC2AndIntersectWithC2Domain(Circle1,Circle2 |
| 773 | ,C1DomainAndRes |
| 774 | ,C2Domain |
| 775 | ,SolutionC1,SolutionC2 |
| 776 | ,NbSolTotal |
| 777 | ,IdentCircles); |
| 778 | //---------------------------------------------------------------------- |
| 779 | //-- Seconde Intersection : Par exemple : 2*PI-1 2*PI+1 |
| 780 | //-- Intersecte avec 0.5 2*PI-0.5 |
| 781 | //-- Donne les intervalles : 0.5,1 et 2*PI-1,2*PI-0.5 |
| 782 | //-- |
| 783 | C1DomainAndRes=C1Domain.SecondIntersection(C1_Int1); |
| 784 | |
| 785 | ProjectOnC2AndIntersectWithC2Domain(Circle1,Circle2 |
| 786 | ,C1DomainAndRes |
| 787 | ,C2Domain |
| 788 | ,SolutionC1,SolutionC2 |
| 789 | ,NbSolTotal |
| 790 | ,IdentCircles); |
| 791 | |
| 792 | //---------------------------------------------------------------------- |
| 793 | //----------- Traitement du second intervalle Geometrique C1_Int2 ---- |
| 794 | //---------------------------------------------------------------------- |
| 795 | if(nbsol==2) { |
| 796 | C1DomainAndRes=C1Domain.FirstIntersection(C1_Int2); |
| 797 | |
| 798 | ProjectOnC2AndIntersectWithC2Domain(Circle1,Circle2 |
| 799 | ,C1DomainAndRes |
| 800 | ,C2Domain |
| 801 | ,SolutionC1,SolutionC2 |
| 802 | ,NbSolTotal |
| 803 | ,IdentCircles); |
| 804 | //-------------------------------------------------------------------- |
| 805 | C1DomainAndRes=C1Domain.SecondIntersection(C1_Int2); |
| 806 | |
| 807 | ProjectOnC2AndIntersectWithC2Domain(Circle1,Circle2 |
| 808 | ,C1DomainAndRes |
| 809 | ,C2Domain |
| 810 | ,SolutionC1,SolutionC2 |
| 811 | ,NbSolTotal |
| 812 | ,IdentCircles); |
| 813 | } |
| 814 | //---------------------------------------------------------------------- |
| 815 | //-- Calcul de toutes les transitions et Positions. |
| 816 | //-- |
| 817 | //---------------------------------------------------------------------- |
| 818 | //-- On determine si des intervalles sont reduit a des points |
| 819 | //-- ( Rayon * Intervalle.Length() < Tol ) |
| 820 | //-- |
| 821 | Standard_Real R1=Circle1.Radius(); |
| 822 | Standard_Real R2=Circle2.Radius(); |
| 823 | Standard_Real Tol2=Tol+Tol; //---- Pour eviter de toujours retourner |
| 824 | //des segments |
| 825 | Standard_Integer i ; |
| 826 | if(Tol < (1e-10)) Tol2 = 1e-10; |
| 827 | for( i=0; i<NbSolTotal ; i++) { |
| 828 | if(((R1 * SolutionC1[i].Length()))<=Tol2 |
| 829 | && ((R2 * SolutionC2[i].Length()))<=Tol2) { |
| 830 | |
| 831 | Standard_Real t=(SolutionC1[i].Binf+SolutionC1[i].Bsup)*0.5; |
| 832 | SolutionC1[i].Binf=SolutionC1[i].Bsup=t; |
| 833 | |
| 834 | t=(SolutionC2[i].Binf+SolutionC2[i].Bsup)*0.5; |
| 835 | SolutionC2[i].Binf=SolutionC2[i].Bsup=t; |
| 836 | } |
| 837 | } |
| 838 | |
| 839 | //---------------------------------------------------------------------- |
| 840 | //-- Traitement des intervalles (ou des points obtenus) |
| 841 | //-- |
| 842 | gp_Ax22d Axis2C1=Circle1.Axis(); |
| 843 | gp_Ax22d Axis2C2=Circle2.Axis(); |
| 844 | gp_Pnt2d P1a,P1b,P2a,P2b; |
| 845 | gp_Vec2d Tan1,Tan2,Norm1,Norm2; |
| 846 | IntRes2d_Transition T1a,T1b,T2a,T2b; |
| 847 | IntRes2d_Position Pos1a,Pos1b,Pos2a,Pos2b; |
| 848 | |
| 849 | Standard_Boolean Opposite=((Circle1.Location().SquareDistance(Circle2.Location())) |
| 850 | >(R1*R1+R2*R2))? Standard_True : Standard_False; |
| 851 | |
| 852 | //if(Circle1.IsDirect()) { cout<<" C1 Direct"<<endl; } else { cout<<" C1 INDirect"<<endl; } |
| 853 | //if(Circle2.IsDirect()) { cout<<" C2 Direct"<<endl; } else { cout<<" C2 INDirect"<<endl; } |
| 854 | |
| 855 | for(i=0; i<NbSolTotal; i++) { |
| 856 | Standard_Real C2inf=(Opposite)? SolutionC2[i].Bsup : SolutionC2[i].Binf; |
| 857 | Standard_Real C2sup=(Opposite)? SolutionC2[i].Binf : SolutionC2[i].Bsup; |
| 858 | |
| 859 | Standard_Real C1inf=NormalizeOnCircleDomain(SolutionC1[i].Binf,DomainCirc1); |
| 860 | C2inf=NormalizeOnCircleDomain(C2inf,DomainCirc2); |
| 861 | |
| 862 | if(IndirectCircles) { |
| 863 | |
| 864 | ElCLib::CircleD2(C1inf,Axis2C1,R1,P1a,Tan1,Norm1); |
| 865 | ElCLib::CircleD2(C2inf,Axis2C2,R2,P2a,Tan2,Norm2); |
| 866 | Tan2.Reverse(); |
| 867 | |
| 868 | IntImpParGen::DeterminePosition(Pos1a,DomainCirc1,P1a,C1inf); |
| 869 | IntImpParGen::DeterminePosition(Pos2a,_DomainCirc2,P2a,PIpPI-C2inf); |
| 870 | Determine_Transition_LC(Pos1a,Tan1,Norm1,T1a , Pos2a,Tan2,Norm2,T2a, Tol); |
| 871 | |
| 872 | |
| 873 | IntRes2d_IntersectionPoint NewPoint1(P1a,C1inf,PIpPI-C2inf,T1a,T2a,Standard_False); |
| 874 | |
| 875 | if((SolutionC1[i].Length()>0.0 ) || (SolutionC2[i].Length() >0.0)) { |
| 876 | //-- On traite un intervalle non reduit a un point |
| 877 | Standard_Real C1sup=NormalizeOnCircleDomain(SolutionC1[i].Bsup,DomainCirc1); |
| 878 | if(C1sup<C1inf) C1sup+=PIpPI; |
| 879 | C2sup=NormalizeOnCircleDomain(C2sup,DomainCirc2); |
| 880 | |
| 881 | ElCLib::CircleD2(C1sup,Axis2C1,R1,P1b,Tan1,Norm1); |
| 882 | ElCLib::CircleD2(C2sup,Axis2C2,R2,P2b,Tan2,Norm2); |
| 883 | Tan2.Reverse(); |
| 884 | |
| 885 | IntImpParGen::DeterminePosition(Pos1b,DomainCirc1,P1b,C1sup); |
| 886 | IntImpParGen::DeterminePosition(Pos2b,_DomainCirc2,P2b,PIpPI-C2sup); |
| 887 | Determine_Transition_LC(Pos1b,Tan1,Norm1,T1b , Pos2b,Tan2,Norm2,T2b, Tol); |
| 888 | |
| 889 | //-------------------------------------------------- |
| 890 | |
| 891 | if(Opposite) { |
| 892 | if(nbsol!=3) { |
| 893 | if(C2inf<C2sup) C2inf+=PIpPI; |
| 894 | } |
| 895 | } |
| 896 | else { |
| 897 | if(nbsol!=3) { |
| 898 | if(C2sup<C2inf) C2sup+=PIpPI; |
| 899 | } |
| 900 | } |
| 901 | |
| 902 | IntRes2d_IntersectionPoint NewPoint2(P1b,C1sup,PIpPI-C2sup,T1b,T2b,Standard_False); |
| 903 | IntRes2d_IntersectionSegment NewSeg(NewPoint1,NewPoint2, |
| 904 | (Opposite==Standard_True)? Standard_False : Standard_True, |
| 905 | Standard_False); |
| 906 | Append(NewSeg); |
| 907 | |
| 908 | } |
| 909 | else { |
| 910 | Append(NewPoint1); |
| 911 | } |
| 912 | |
| 913 | } |
| 914 | else { |
| 915 | |
| 916 | ElCLib::CircleD2(C1inf,Axis2C1,R1,P1a,Tan1,Norm1); |
| 917 | ElCLib::CircleD2(C2inf,Axis2C2,R2,P2a,Tan2,Norm2); |
| 918 | |
| 919 | IntImpParGen::DeterminePosition(Pos1a,DomainCirc1,P1a,C1inf); |
| 920 | IntImpParGen::DeterminePosition(Pos2a,DomainCirc2,P2a,C2inf); |
| 921 | Determine_Transition_LC(Pos1a,Tan1,Norm1,T1a , Pos2a,Tan2,Norm2,T2a, Tol); |
| 922 | |
| 923 | |
| 924 | IntRes2d_IntersectionPoint NewPoint1(P1a,C1inf,C2inf,T1a,T2a,Standard_False); |
| 925 | |
| 926 | if((SolutionC1[i].Length()>0.0 ) || (SolutionC2[i].Length() >0.0)) { |
| 927 | //-- On traite un intervalle non reduit a un point |
| 928 | Standard_Real C1sup=NormalizeOnCircleDomain(SolutionC1[i].Bsup,DomainCirc1); |
| 929 | if(C1sup<C1inf) C1sup+=PIpPI; |
| 930 | C2sup=NormalizeOnCircleDomain(C2sup,DomainCirc2); |
| 931 | |
| 932 | ElCLib::CircleD2(C1sup,Axis2C1,R1,P1b,Tan1,Norm1); |
| 933 | ElCLib::CircleD2(C2sup,Axis2C2,R2,P2b,Tan2,Norm2); |
| 934 | |
| 935 | IntImpParGen::DeterminePosition(Pos1b,DomainCirc1,P1b,C1sup); |
| 936 | IntImpParGen::DeterminePosition(Pos2b,DomainCirc2,P2b,C2sup); |
| 937 | Determine_Transition_LC(Pos1b,Tan1,Norm1,T1b , Pos2b,Tan2,Norm2,T2b, Tol); |
| 938 | |
| 939 | //-------------------------------------------------- |
| 940 | |
| 941 | if(Opposite) { |
| 942 | if(nbsol!=3) { |
| 943 | if(C2inf<C2sup) C2inf+=PIpPI; |
| 944 | } |
| 945 | } |
| 946 | else { |
| 947 | if(nbsol!=3) { |
| 948 | if(C2sup<C2inf) C2sup+=PIpPI; |
| 949 | } |
| 950 | } |
| 951 | |
| 952 | IntRes2d_IntersectionPoint NewPoint2(P1b,C1sup,C2sup,T1b,T2b,Standard_False); |
| 953 | IntRes2d_IntersectionSegment NewSeg(NewPoint1,NewPoint2,Opposite,Standard_False); |
| 954 | Append(NewSeg); |
| 955 | |
| 956 | } |
| 957 | else { |
| 958 | Append(NewPoint1); |
| 959 | } |
| 960 | } |
| 961 | } |
| 962 | } |
| 963 | //---------------------------------------------------------------------- |
| 964 | IntRes2d_Position FindPositionLL(Standard_Real &Param |
| 965 | ,const IntRes2d_Domain& Domain) |
| 966 | { |
| 967 | Standard_Real aDPar = Precision::Infinite(); |
| 968 | IntRes2d_Position aPos = IntRes2d_Middle; |
| 969 | Standard_Real aResPar = Param; |
| 970 | if(Domain.HasFirstPoint()) { |
| 971 | aDPar = Abs(Param-Domain.FirstParameter()); |
| 972 | if( aDPar <= Domain.FirstTolerance()) { |
| 973 | aResPar=Domain.FirstParameter(); |
| 974 | aPos = IntRes2d_Head; |
| 975 | |
| 976 | } |
| 977 | } |
| 978 | if(Domain.HasLastPoint()) { |
| 979 | Standard_Real aD2 = Abs(Param-Domain.LastParameter()); |
| 980 | if( aD2 <= Domain.LastTolerance() && (aPos == IntRes2d_Middle || aD2 < aDPar )) |
| 981 | { |
| 982 | aResPar=Domain.LastParameter(); |
| 983 | aPos = IntRes2d_End; |
| 984 | } |
| 985 | } |
| 986 | Param = aResPar; |
| 987 | return aPos; |
| 988 | } |
| 989 | //-------------------------------------------------------------------- |
| 990 | //gka 0022833 |
| 991 | // Method to compute of point of intersection for case |
| 992 | //when specified domain less than specified tolerance for intersection |
| 993 | static inline void getDomainParametrs(const IntRes2d_Domain& theDomain, |
| 994 | Standard_Real& theFirst, |
| 995 | Standard_Real& theLast, |
| 996 | Standard_Real& theTol1, |
| 997 | Standard_Real& theTol2) |
| 998 | { |
| 999 | theFirst = (theDomain.HasFirstPoint() ? theDomain.FirstParameter() : -Precision::Infinite()); |
| 1000 | theLast = (theDomain.HasLastPoint() ? theDomain.LastParameter() : Precision::Infinite()); |
| 1001 | theTol1 = (theDomain.HasFirstPoint() ? theDomain.FirstTolerance() : 0.); |
| 1002 | theTol2 = (theDomain.HasLastPoint() ? theDomain.LastTolerance() : 0.); |
| 1003 | } |
| 1004 | |
| 1005 | |
| 1006 | //======================================================================= |
| 1007 | //function : computeIntPoint |
| 1008 | //purpose : |
| 1009 | //======================================================================= |
| 1010 | static Standard_Boolean computeIntPoint(const IntRes2d_Domain& theCurDomain, |
| 1011 | const IntRes2d_Domain& theDomainOther, |
| 1012 | const gp_Lin2d& theCurLin, |
| 1013 | const gp_Lin2d& theOtherLin, |
| 1014 | Standard_Real theCosT1T2, |
| 1015 | Standard_Real theParCur, Standard_Real theParOther, |
| 1016 | Standard_Real& theResInf, Standard_Real& theResSup, |
| 1017 | Standard_Integer theNum, |
| 1018 | IntRes2d_TypeTrans theCurTrans, |
| 1019 | IntRes2d_IntersectionPoint& theNewPoint) |
| 1020 | { |
| 1021 | if(fabs(theResSup-theParCur) > fabs(theResInf-theParCur)) |
| 1022 | theResSup = theResInf; |
| 1023 | |
| 1024 | Standard_Real aRes2 = theParOther + (theResSup - theParCur) * theCosT1T2; |
| 1025 | |
| 1026 | Standard_Real aFirst2, aLast2, aTol21, aTol22, aTol11, aTol12 ; |
| 1027 | |
| 1028 | getDomainParametrs(theDomainOther,aFirst2, aLast2, aTol21, aTol22); |
| 1029 | |
| 1030 | if( aRes2 < aFirst2 - aTol21 || aRes2 > aLast2 + aTol22 ) { |
| 1031 | return Standard_False; |
| 1032 | } |
| 1033 | |
| 1034 | //------ compute parameters of intersection point -- |
| 1035 | IntRes2d_Transition aT1,aT2; |
| 1036 | IntRes2d_Position aPos1a = FindPositionLL(theResSup,theCurDomain); |
| 1037 | IntRes2d_Position aPos2a = FindPositionLL(aRes2,theDomainOther); |
| 1038 | IntRes2d_TypeTrans anOtherTrans = ( theCurTrans == IntRes2d_Out ? |
| 1039 | IntRes2d_In : ( theCurTrans == IntRes2d_In ? IntRes2d_Out : IntRes2d_Undecided ) ); |
| 1040 | |
| 1041 | if( theCurTrans != IntRes2d_Undecided ) |
| 1042 | { |
| 1043 | aT1.SetValue(Standard_False, aPos1a, theCurTrans); |
| 1044 | aT2.SetValue(Standard_False, aPos2a, anOtherTrans); |
| 1045 | } |
| 1046 | else |
| 1047 | { |
| 1048 | Standard_Boolean anOpposite = theCosT1T2 < 0.; |
| 1049 | aT1.SetValue(Standard_False,aPos1a,IntRes2d_Unknown,anOpposite); |
| 1050 | aT2.SetValue(Standard_False,aPos2a,IntRes2d_Unknown,anOpposite); |
| 1051 | } |
| 1052 | //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 1053 | //-------------------------------------------------- |
| 1054 | //gka bug 0022833 |
| 1055 | Standard_Real aResU1 = theParCur; |
| 1056 | Standard_Real aResU2 = theParOther; |
| 1057 | |
| 1058 | Standard_Real aFirst1, aLast1; |
| 1059 | getDomainParametrs(theCurDomain,aFirst1, aLast1, aTol11, aTol12); |
| 1060 | |
| 1061 | Standard_Boolean isInside1 = (theParCur >= aFirst1 && theParCur <= aLast1); |
| 1062 | Standard_Boolean isInside2 = (theParOther >= aFirst2 && theParOther <= aLast2); |
| 1063 | |
| 1064 | if(!isInside1 || !isInside2) |
| 1065 | { |
| 1066 | if(isInside1) |
| 1067 | { |
| 1068 | gp_Pnt2d Pt1=ElCLib::Value(aRes2,theOtherLin); |
| 1069 | aResU2 = aRes2; |
| 1070 | Standard_Real aPar1 = ElCLib::Parameter(theCurLin,Pt1); |
| 1071 | aResU1 =((aPar1 >= aFirst1 && aPar1<= aLast1) ? aPar1 : theResSup); |
| 1072 | |
| 1073 | } |
| 1074 | else if(isInside2) |
| 1075 | { |
| 1076 | gp_Pnt2d aPt1=ElCLib::Value(theResSup,theCurLin); |
| 1077 | aResU1 = theResSup; |
| 1078 | Standard_Real aPar2 = ElCLib::Parameter(theOtherLin,aPt1); |
| 1079 | aResU2= ((aPar2 >= aFirst2 && aPar2<= aLast2) ? aPar2 : aRes2); |
| 1080 | } |
| 1081 | else |
| 1082 | { |
| 1083 | //PKVf |
| 1084 | // check that parameters are within range on both curves |
| 1085 | if ( theParCur < aFirst1-aTol11 || theParCur > aLast1+aTol12 || |
| 1086 | theParOther < aFirst2-aTol21 || theParOther > aLast2+aTol22) { |
| 1087 | return Standard_False; |
| 1088 | } |
| 1089 | //PKVt |
| 1090 | aResU1 = theResSup; |
| 1091 | aResU2= aRes2; |
| 1092 | } |
| 1093 | } |
| 1094 | gp_Pnt2d aPres((ElCLib::Value(aResU1,theCurLin).XY() + ElCLib::Value(aResU2,theOtherLin).XY()) * 0.5 ); |
| 1095 | if(theNum == 1 ) |
| 1096 | theNewPoint.SetValues(aPres, aResU1, aResU2 ,aT1, aT2, Standard_False); |
| 1097 | else |
| 1098 | theNewPoint.SetValues(aPres, aResU2, aResU1 ,aT2, aT1, Standard_False); |
| 1099 | return Standard_True; |
| 1100 | } |
| 1101 | |
| 1102 | //---------------------------------------------------------------------- |
| 1103 | void IntCurve_IntConicConic::Perform(const gp_Lin2d& L1 |
| 1104 | ,const IntRes2d_Domain& Domain1 |
| 1105 | ,const gp_Lin2d& L2 |
| 1106 | ,const IntRes2d_Domain& Domain2 |
| 1107 | ,const Standard_Real,const Standard_Real TolR) { |
| 1108 | this->ResetFields(); |
| 1109 | |
| 1110 | //-- Coordonnees du point d intersection sur chacune des 2 droites |
| 1111 | Standard_Real U1,U2; |
| 1112 | //-- Nombre de points solution : 1 : Intersection |
| 1113 | //-- 0 : Non Confondues |
| 1114 | //-- 2 : Confondues a la tolerance pres |
| 1115 | Standard_Integer nbsol; |
| 1116 | IntRes2d_IntersectionPoint PtSeg1,PtSeg2; |
| 1117 | Standard_Real SINL1L2; |
| 1118 | Standard_Real Tol = TolR; |
| 1119 | if(TolR< 1e-10) Tol = 1e-10; |
| 1120 | |
| 1121 | |
| 1122 | LineLineGeometricIntersection(L1,L2,Tol,U1,U2,SINL1L2,nbsol); |
| 1123 | |
| 1124 | gp_Vec2d Tan1=L1.Direction(); |
| 1125 | gp_Vec2d Tan2=L2.Direction(); |
| 1126 | |
| 1127 | Standard_Real aCosT1T2 = Tan1.Dot(Tan2); |
| 1128 | Standard_Boolean Opposite=(aCosT1T2 < 0.0)? Standard_True : Standard_False; |
| 1129 | |
| 1130 | done=Standard_True; |
| 1131 | |
| 1132 | if(nbsol==1) { |
| 1133 | //--------------------------------------------------- |
| 1134 | //-- d: distance du point I a partir de laquelle les |
| 1135 | //-- points de parametre U1+d et U2+-d sont ecartes |
| 1136 | //-- d une distance superieure a Tol. |
| 1137 | //--------------------------------------------------- |
| 1138 | IntRes2d_Position Pos1a,Pos2a,Pos1b,Pos2b; |
| 1139 | Standard_Real d=Tol/(SINL1L2); |
| 1140 | Standard_Real U1inf=U1-d; |
| 1141 | Standard_Real U1sup=U1+d; |
| 1142 | Standard_Real U1mU2=U1-U2; |
| 1143 | Standard_Real U1pU2=U1+U2; |
| 1144 | Standard_Real Res1inf,Res1sup; |
| 1145 | Standard_Real ProdVectTan; |
| 1146 | |
| 1147 | |
| 1148 | //--------------------------------------------------- |
| 1149 | //-- On agrandit la zone U1inf U1sup pour tenir compte |
| 1150 | //-- des tolerances des points en bout |
| 1151 | //-- |
| 1152 | if(Domain1.HasFirstPoint()) { |
| 1153 | if(L2.Distance(Domain1.FirstPoint()) < Domain1.FirstTolerance()) { |
| 1154 | if(U1inf > Domain1.FirstParameter()) { |
| 1155 | U1inf = Domain1.FirstParameter(); |
| 1156 | } |
| 1157 | if(U1sup < Domain1.FirstParameter()) { |
| 1158 | U1sup = Domain1.FirstParameter(); |
| 1159 | } |
| 1160 | } |
| 1161 | } |
| 1162 | if(Domain1.HasLastPoint()) { |
| 1163 | if(L2.Distance(Domain1.LastPoint()) < Domain1.LastTolerance()) { |
| 1164 | if(U1inf > Domain1.LastParameter()) { |
| 1165 | U1inf = Domain1.LastParameter(); |
| 1166 | } |
| 1167 | if(U1sup < Domain1.LastParameter()) { |
| 1168 | U1sup = Domain1.LastParameter(); |
| 1169 | } |
| 1170 | } |
| 1171 | } |
| 1172 | if(Domain2.HasFirstPoint()) { |
| 1173 | if(L1.Distance(Domain2.FirstPoint()) < Domain2.FirstTolerance()) { |
| 1174 | Standard_Real p = ElCLib::Parameter(L1,Domain2.FirstPoint()); |
| 1175 | if(U1inf > p) { |
| 1176 | U1inf = p; |
| 1177 | } |
| 1178 | if(U1sup < p) { |
| 1179 | U1sup = p; |
| 1180 | } |
| 1181 | } |
| 1182 | } |
| 1183 | if(Domain2.HasLastPoint()) { |
| 1184 | if(L1.Distance(Domain2.LastPoint()) < Domain2.LastTolerance()) { |
| 1185 | Standard_Real p = ElCLib::Parameter(L1,Domain2.LastPoint()); |
| 1186 | if(U1inf > p) { |
| 1187 | U1inf = p; |
| 1188 | } |
| 1189 | if(U1sup < p) { |
| 1190 | U1sup = p; |
| 1191 | } |
| 1192 | } |
| 1193 | } |
| 1194 | //----------------------------------------------------------------- |
| 1195 | |
| 1196 | DomainIntersection(Domain1,U1inf,U1sup,Res1inf,Res1sup,Pos1a,Pos1b); |
| 1197 | |
| 1198 | if((Res1sup-Res1inf)<0.0) { |
| 1199 | //-- Si l intersection est vide |
| 1200 | //-- |
| 1201 | } |
| 1202 | else { //-- (Domain1 INTER Zone Intersection) non vide |
| 1203 | |
| 1204 | ProdVectTan=Tan1.Crossed(Tan2); |
| 1205 | |
| 1206 | //##################################################################### |
| 1207 | //## Longueur Minimale d un segment Sur Courbe 1 |
| 1208 | //##################################################################### |
| 1209 | |
| 1210 | Standard_Real LongMiniSeg=Tol; |
| 1211 | |
| 1212 | |
| 1213 | if(((Res1sup-Res1inf)<=LongMiniSeg) |
| 1214 | || ((Pos1a==Pos1b)&&(Pos1a!=IntRes2d_Middle))) |
| 1215 | { |
| 1216 | //------------------------------- Un seul Point ------------------- |
| 1217 | //--- lorsque la longueur du segment est inferieure a ?? |
| 1218 | //--- ou si deux points designent le meme bout |
| 1219 | //gka #0022833 |
| 1220 | IntRes2d_TypeTrans aCurTrans = ( ProdVectTan >= TOLERANCE_ANGULAIRE ? |
| 1221 | IntRes2d_Out : ( ProdVectTan <= -TOLERANCE_ANGULAIRE ? IntRes2d_In : IntRes2d_Undecided ) ); |
| 1222 | |
| 1223 | IntRes2d_IntersectionPoint NewPoint1; |
| 1224 | if( computeIntPoint(Domain1, Domain2, L1, L2, aCosT1T2, U1, U2, Res1inf, Res1sup, 1, aCurTrans, NewPoint1 ) ) |
| 1225 | Append(NewPoint1); |
| 1226 | |
| 1227 | //------------------------------------------------------ |
| 1228 | |
| 1229 | |
| 1230 | } //--------------- Fin du cas : 1 seul point -------------------- |
| 1231 | |
| 1232 | else { |
| 1233 | //-- Intersection AND Domain1 --------> Segment --------------------- |
| 1234 | Standard_Real U2inf,U2sup; |
| 1235 | Standard_Real Res2inf,Res2sup; |
| 1236 | |
| 1237 | if(Opposite) { U2inf = U1pU2 -Res1sup; U2sup= U1pU2-Res1inf; } |
| 1238 | else { U2inf = Res1inf-U1mU2; U2sup= Res1sup-U1mU2; } |
| 1239 | |
| 1240 | DomainIntersection(Domain2,U2inf,U2sup,Res2inf,Res2sup,Pos2a,Pos2b); |
| 1241 | |
| 1242 | //#################################################################### |
| 1243 | //## Test sur la longueur minimale d un segment sur Ligne2 |
| 1244 | //#################################################################### |
| 1245 | Standard_Real Res2sup_m_Res2inf = Res2sup-Res2inf; |
| 1246 | if(Res2sup_m_Res2inf < 0.0) { |
| 1247 | //-- Pas de solutions On retourne Vide |
| 1248 | } |
| 1249 | else if(((Res2sup-Res2inf) > LongMiniSeg) |
| 1250 | || ((Pos2a==Pos2b)&&(Pos2a!=IntRes2d_Middle))) { |
| 1251 | //----------- Calcul des attributs du segment -------------- |
| 1252 | //-- Attention, les bornes Res1inf(sup) bougent donc il faut |
| 1253 | //-- eventuellement recalculer les attributs |
| 1254 | |
| 1255 | if(Opposite) { Res1inf=U1pU2-Res2sup; Res1sup=U1pU2-Res2inf; |
| 1256 | Standard_Real Tampon=Res2inf; Res2inf=Res2sup; Res2sup=Tampon; |
| 1257 | IntRes2d_Position Pos=Pos2a; Pos2a=Pos2b; Pos2b=Pos; |
| 1258 | } |
| 1259 | else { Res1inf=U1mU2+Res2inf; Res1sup=U1mU2+Res2sup; } |
| 1260 | |
| 1261 | Pos1a=FindPositionLL(Res1inf,Domain1); |
| 1262 | Pos1b=FindPositionLL(Res1sup,Domain1); |
| 1263 | |
| 1264 | IntRes2d_Transition T1a,T2a,T1b,T2b; |
| 1265 | |
| 1266 | if(ProdVectTan>=TOLERANCE_ANGULAIRE) { // &&&&&&&&&&&&&&& |
| 1267 | T1a.SetValue(Standard_False,Pos1a,IntRes2d_Out); |
| 1268 | T2a.SetValue(Standard_False,Pos2a,IntRes2d_In); |
| 1269 | } |
| 1270 | else if(ProdVectTan<=-TOLERANCE_ANGULAIRE) { |
| 1271 | T1a.SetValue(Standard_False,Pos1a,IntRes2d_In); |
| 1272 | T2a.SetValue(Standard_False,Pos2a,IntRes2d_Out); |
| 1273 | } |
| 1274 | else { |
| 1275 | T1a.SetValue(Standard_False,Pos1a,IntRes2d_Unknown,Opposite); |
| 1276 | T2a.SetValue(Standard_False,Pos2a,IntRes2d_Unknown,Opposite); |
| 1277 | } |
| 1278 | |
| 1279 | |
| 1280 | //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 1281 | //~~~~~~~ C O N V E N T I O N - S E G M E N T ~~~~~~~ |
| 1282 | //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 1283 | //~~ On Renvoie un segment dans les cas suivants : ~~ |
| 1284 | //~~ (1) Extremite L1 L2 ------> Extremite L1 L2 ~~ |
| 1285 | //~~ (2) Extremite L1 L2 ------> Intersection ~~ |
| 1286 | //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 1287 | |
| 1288 | Standard_Boolean ResultIsAPoint=Standard_False; |
| 1289 | |
| 1290 | if(((Res1sup-Res1inf)<=LongMiniSeg) |
| 1291 | || (Abs(Res2sup-Res2inf)<=LongMiniSeg)) { |
| 1292 | //-- On force la creation d un point |
| 1293 | ResultIsAPoint=Standard_True; |
| 1294 | } |
| 1295 | else { |
| 1296 | //------------------------------------------------------------ |
| 1297 | //-- On traite les cas ou l intersection est situee du |
| 1298 | //-- Mauvais cote du domaine |
| 1299 | //-- Attention : Res2inf <-> Pos2a Res2sup <-> Pos2b |
| 1300 | //-- et Res1inf <-> Pos1a Res1sup <-> Pos1b |
| 1301 | //-- avec Res1inf <= Res1sup |
| 1302 | //------------------------------------------------------------ |
| 1303 | //-- Le point sera : Res1inf,Res2inf,T1a(Pos1a),T2a(Pos2a) |
| 1304 | //------------------------------------------------------------ |
| 1305 | |
| 1306 | if(Pos1a==IntRes2d_Head) { |
| 1307 | if(Pos1b!=IntRes2d_End && U1<Res1inf) { ResultIsAPoint=Standard_True; U1=Res1inf; U2=Res2inf; } |
| 1308 | } |
| 1309 | if(Pos1b==IntRes2d_End) { |
| 1310 | if(Pos1a!=IntRes2d_Head && U1>Res1sup) { ResultIsAPoint=Standard_True; U1=Res1sup; U2=Res2sup; } |
| 1311 | } |
| 1312 | |
| 1313 | if(Pos2a==IntRes2d_Head) { |
| 1314 | if(Pos2b!=IntRes2d_End && U2<Res2inf) { ResultIsAPoint=Standard_True; U2=Res2inf; U1=Res1inf; } |
| 1315 | } |
| 1316 | else { |
| 1317 | if(Pos2a==IntRes2d_End) { |
| 1318 | if(Pos2b!=IntRes2d_Head && U2>Res2inf) { ResultIsAPoint=Standard_True; U2=Res2inf; U1=Res1inf; } |
| 1319 | } |
| 1320 | } |
| 1321 | if(Pos2b==IntRes2d_Head) { |
| 1322 | if(Pos2a!=IntRes2d_End && U2<Res2sup) { ResultIsAPoint=Standard_True; U2=Res2sup; U1=Res1sup; } |
| 1323 | } |
| 1324 | else { |
| 1325 | if(Pos2b==IntRes2d_End) { |
| 1326 | if(Pos2a!=IntRes2d_Head && U2>Res2sup) { ResultIsAPoint=Standard_True; U2=Res2sup; U1=Res1sup; } |
| 1327 | } |
| 1328 | } |
| 1329 | } |
| 1330 | |
| 1331 | |
| 1332 | |
| 1333 | if((!ResultIsAPoint) && (Pos1a!=IntRes2d_Middle || Pos2a!=IntRes2d_Middle)) { |
| 1334 | IntRes2d_Transition T1b,T2b; |
| 1335 | if(ProdVectTan>=TOLERANCE_ANGULAIRE) { //&&&&&&&&&&&&&& |
| 1336 | T1b.SetValue(Standard_False,Pos1b,IntRes2d_Out); |
| 1337 | T2b.SetValue(Standard_False,Pos2b,IntRes2d_In); |
| 1338 | } |
| 1339 | else if(ProdVectTan<=-TOLERANCE_ANGULAIRE) { //&&&&&&&&&&&&&& |
| 1340 | T1b.SetValue(Standard_False,Pos1b,IntRes2d_In); |
| 1341 | T2b.SetValue(Standard_False,Pos2b,IntRes2d_Out); |
| 1342 | } |
| 1343 | else { |
| 1344 | T1b.SetValue(Standard_False,Pos1b,IntRes2d_Unknown,Opposite); |
| 1345 | T2b.SetValue(Standard_False,Pos2b,IntRes2d_Unknown,Opposite); |
| 1346 | } |
| 1347 | gp_Pnt2d Ptdebut; |
| 1348 | if(Pos1a==IntRes2d_Middle) { |
| 1349 | Standard_Real t3; |
| 1350 | if(Opposite) { |
| 1351 | t3 = (Pos2a == IntRes2d_Head)? Res2sup : Res2inf; |
| 1352 | } |
| 1353 | else { |
| 1354 | t3 = (Pos2a == IntRes2d_Head)? Res2inf : Res2sup; |
| 1355 | } |
| 1356 | Ptdebut=ElCLib::Value(t3,L2); |
| 1357 | Res1inf=ElCLib::Parameter(L1,Ptdebut); |
| 1358 | } |
| 1359 | else { |
| 1360 | Standard_Real t4 = (Pos1a == IntRes2d_Head)? Res1inf : Res1sup; |
| 1361 | Ptdebut=ElCLib::Value(t4,L1); |
| 1362 | Res2inf=ElCLib::Parameter(L2,Ptdebut); |
| 1363 | } |
| 1364 | PtSeg1.SetValues(Ptdebut,Res1inf,Res2inf,T1a,T2a,Standard_False); |
| 1365 | if(Pos1b!=IntRes2d_Middle || Pos2b!=IntRes2d_Middle) { |
| 1366 | //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 1367 | //~~ Ajustement des parametres et du point renvoye |
| 1368 | gp_Pnt2d Ptfin; |
| 1369 | if(Pos1b==IntRes2d_Middle) { |
| 1370 | Ptfin=ElCLib::Value(Res2sup,L2); |
| 1371 | Res1sup=ElCLib::Parameter(L1,Ptfin); |
| 1372 | } |
| 1373 | else { |
| 1374 | Ptfin=ElCLib::Value(Res1sup,L1); |
| 1375 | Res2sup=ElCLib::Parameter(L2,Ptfin); |
| 1376 | } |
| 1377 | PtSeg2.SetValues(Ptfin,Res1sup,Res2sup,T1b,T2b,Standard_False); |
| 1378 | IntRes2d_IntersectionSegment Segment(PtSeg1,PtSeg2 |
| 1379 | ,Opposite,Standard_False); |
| 1380 | Append(Segment); |
| 1381 | } |
| 1382 | else { //-- Extremite(L1 ou L2) ------> Point Middle(L1 et L2) |
| 1383 | |
| 1384 | Pos1b=FindPositionLL(U1,Domain1); |
| 1385 | Pos2b=FindPositionLL(U2,Domain2); |
| 1386 | if(ProdVectTan>=TOLERANCE_ANGULAIRE) { |
| 1387 | T1b.SetValue(Standard_False,Pos1b,IntRes2d_Out); |
| 1388 | T2b.SetValue(Standard_False,Pos2b,IntRes2d_In); |
| 1389 | } |
| 1390 | else if(ProdVectTan<=-TOLERANCE_ANGULAIRE) { |
| 1391 | T1b.SetValue(Standard_False,Pos1b,IntRes2d_In); |
| 1392 | T2b.SetValue(Standard_False,Pos2b,IntRes2d_Out); |
| 1393 | } |
| 1394 | else { |
| 1395 | T1b.SetValue(Standard_False,Pos1b,IntRes2d_Unknown,Opposite); |
| 1396 | T2b.SetValue(Standard_False,Pos2b,IntRes2d_Unknown,Opposite); |
| 1397 | } |
| 1398 | |
| 1399 | PtSeg2.SetValues(ElCLib::Value(U2,L2),U1,U2,T1b,T2b,Standard_False); |
| 1400 | |
| 1401 | if((Abs(Res1inf-U1) >LongMiniSeg) && (Abs(Res2inf-U2) >LongMiniSeg)) { |
| 1402 | IntRes2d_IntersectionSegment Segment(PtSeg1,PtSeg2,Opposite,Standard_False); |
| 1403 | Append(Segment); |
| 1404 | } |
| 1405 | else { |
| 1406 | Append(SegmentToPoint(PtSeg1,T1a,T2a,PtSeg2,T1b,T2b)); |
| 1407 | } |
| 1408 | } |
| 1409 | |
| 1410 | } //-- (Pos1a!=IntRes2d_Middle || Pos2a!=IntRes2d_Middle) -- |
| 1411 | else { //-- Pos1a == Pos2a == Middle |
| 1412 | if(Pos1b==IntRes2d_Middle) Pos1b=Pos1a; |
| 1413 | if(Pos2b==IntRes2d_Middle) Pos2b=Pos2a; |
| 1414 | if(ResultIsAPoint) { |
| 1415 | //-- Middle sur le segment A |
| 1416 | //-- |
| 1417 | if(Pos1b!=IntRes2d_Middle || Pos2b!=IntRes2d_Middle) { |
| 1418 | gp_Pnt2d Ptfin; |
| 1419 | if(Pos1b==IntRes2d_Middle) { |
| 1420 | Standard_Real t2; |
| 1421 | if(Opposite) { |
| 1422 | t2 = (Pos2b == IntRes2d_Head)? Res2sup : Res2inf; |
| 1423 | } |
| 1424 | else { |
| 1425 | t2 = (Pos2b == IntRes2d_Head)? Res2inf : Res2sup; |
| 1426 | } |
| 1427 | Ptfin=ElCLib::Value(t2,L2); |
| 1428 | Res1sup=ElCLib::Parameter(L1,Ptfin); |
| 1429 | //modified by NIZHNY-MKK Tue Feb 15 10:54:51 2000.BEGIN |
| 1430 | Pos1b=FindPositionLL(Res1sup,Domain1); |
| 1431 | //modified by NIZHNY-MKK Tue Feb 15 10:54:55 2000.END |
| 1432 | |
| 1433 | } |
| 1434 | else { |
| 1435 | Standard_Real t1 = (Pos1b == IntRes2d_Head)? Res1inf : Res1sup; |
| 1436 | Ptfin=ElCLib::Value(t1,L1); |
| 1437 | Res2sup=ElCLib::Parameter(L2,Ptfin); |
| 1438 | //modified by NIZHNY-MKK Tue Feb 15 10:55:08 2000.BEGIN |
| 1439 | Pos2b=FindPositionLL(Res2sup,Domain2); |
| 1440 | //modified by NIZHNY-MKK Tue Feb 15 10:55:11 2000.END |
| 1441 | } |
| 1442 | if(ProdVectTan>=TOLERANCE_ANGULAIRE) { |
| 1443 | T1b.SetValue(Standard_False,Pos1b,IntRes2d_Out); |
| 1444 | T2b.SetValue(Standard_False,Pos2b,IntRes2d_In); |
| 1445 | } |
| 1446 | else if(ProdVectTan<=-TOLERANCE_ANGULAIRE) { |
| 1447 | T1b.SetValue(Standard_False,Pos1b,IntRes2d_In); |
| 1448 | T2b.SetValue(Standard_False,Pos2b,IntRes2d_Out); |
| 1449 | } |
| 1450 | else { |
| 1451 | T1b.SetValue(Standard_False,Pos1b,IntRes2d_Unknown,Opposite); |
| 1452 | T2b.SetValue(Standard_False,Pos2b,IntRes2d_Unknown,Opposite); |
| 1453 | } |
| 1454 | PtSeg2.SetValues(Ptfin,Res1sup,Res2sup,T1b,T2b,Standard_False); |
| 1455 | Append(PtSeg2); |
| 1456 | } |
| 1457 | else { |
| 1458 | Pos1b=FindPositionLL(U1,Domain1); |
| 1459 | Pos2b=FindPositionLL(U2,Domain2); |
| 1460 | |
| 1461 | if(ProdVectTan>=TOLERANCE_ANGULAIRE) { |
| 1462 | T1b.SetValue(Standard_False,Pos1b,IntRes2d_Out); |
| 1463 | T2b.SetValue(Standard_False,Pos2b,IntRes2d_In); |
| 1464 | } |
| 1465 | else if(ProdVectTan<=-TOLERANCE_ANGULAIRE) { |
| 1466 | T1b.SetValue(Standard_False,Pos1b,IntRes2d_In); |
| 1467 | T2b.SetValue(Standard_False,Pos2b,IntRes2d_Out); |
| 1468 | } |
| 1469 | else { |
| 1470 | T1b.SetValue(Standard_False,Pos1b,IntRes2d_Unknown,Opposite); |
| 1471 | T2b.SetValue(Standard_False,Pos2b,IntRes2d_Unknown,Opposite); |
| 1472 | } |
| 1473 | PtSeg1.SetValues(ElCLib::Value(U2,L2),U1,U2,T1b,T2b,Standard_False); |
| 1474 | Append(PtSeg1); |
| 1475 | } |
| 1476 | } |
| 1477 | else { |
| 1478 | PtSeg1.SetValues(ElCLib::Value(U2,L2),U1,U2,T1a,T2a,Standard_False); |
| 1479 | |
| 1480 | if((Pos1b!=IntRes2d_Middle || Pos2b!=IntRes2d_Middle)) { |
| 1481 | IntRes2d_Transition T1b,T2b; |
| 1482 | if(ProdVectTan>=TOLERANCE_ANGULAIRE) { |
| 1483 | T1b.SetValue(Standard_False,Pos1b,IntRes2d_Out); |
| 1484 | T2b.SetValue(Standard_False,Pos2b,IntRes2d_In); |
| 1485 | } |
| 1486 | else if(ProdVectTan<=-TOLERANCE_ANGULAIRE) { |
| 1487 | T1b.SetValue(Standard_False,Pos1b,IntRes2d_In); |
| 1488 | T2b.SetValue(Standard_False,Pos2b,IntRes2d_Out); |
| 1489 | } |
| 1490 | else { |
| 1491 | T1b.SetValue(Standard_False,Pos1b,IntRes2d_Unknown,Opposite); |
| 1492 | T2b.SetValue(Standard_False,Pos2b,IntRes2d_Unknown,Opposite); |
| 1493 | } |
| 1494 | //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 1495 | //~~ Ajustement des parametres et du point renvoye |
| 1496 | gp_Pnt2d Ptfin; |
| 1497 | if(Pos1b==IntRes2d_Middle) { |
| 1498 | Ptfin=ElCLib::Value(Res2sup,L2); |
| 1499 | Res1sup=ElCLib::Parameter(L1,Ptfin); |
| 1500 | } |
| 1501 | else { |
| 1502 | Ptfin=ElCLib::Value(Res1sup,L1); |
| 1503 | Res2sup=ElCLib::Parameter(L2,Ptfin); |
| 1504 | } |
| 1505 | |
| 1506 | PtSeg2.SetValues(Ptfin,Res1sup,Res2sup,T1b,T2b,Standard_False); |
| 1507 | |
| 1508 | if((Abs(U1-Res1sup)>LongMiniSeg) |
| 1509 | ||(Abs(U2-Res2sup)>LongMiniSeg)) { |
| 1510 | //-- Modif du 1er Octobre 92 (Pour Composites) |
| 1511 | |
| 1512 | IntRes2d_IntersectionSegment Segment(PtSeg1,PtSeg2 |
| 1513 | ,Opposite,Standard_False); |
| 1514 | Append(Segment); |
| 1515 | } |
| 1516 | else { |
| 1517 | Append(SegmentToPoint(PtSeg1,T1a,T2a,PtSeg2,T1b,T2b)); |
| 1518 | } |
| 1519 | } |
| 1520 | else { |
| 1521 | Append(PtSeg1); |
| 1522 | } |
| 1523 | } |
| 1524 | } |
| 1525 | } //----- Fin Creation Segment ----(Res2sup-Res2inf>Tol)------------- |
| 1526 | else { |
| 1527 | //------ (Intersection And Domain1) AND Domain2 --> Point ------ |
| 1528 | //-- Attention Res1sup peut etre different de U2 |
| 1529 | //-- Mais on a Res1sup-Res1inf < Tol |
| 1530 | |
| 1531 | //gka #0022833 |
| 1532 | IntRes2d_TypeTrans aCurTrans = ( ProdVectTan >= TOLERANCE_ANGULAIRE ? |
| 1533 | IntRes2d_In : ( ProdVectTan <= -TOLERANCE_ANGULAIRE ? IntRes2d_Out : IntRes2d_Undecided ) ); |
| 1534 | |
| 1535 | IntRes2d_IntersectionPoint NewPoint1; |
| 1536 | if( computeIntPoint(Domain2, Domain1, L2, L1, aCosT1T2, U2, U1, Res2inf, Res2sup, 2, aCurTrans, NewPoint1 ) ) |
| 1537 | Append(NewPoint1); |
| 1538 | |
| 1539 | } |
| 1540 | } |
| 1541 | } |
| 1542 | } |
| 1543 | else { |
| 1544 | if(nbsol==2) { //== Droites confondues a la tolerance pres |
| 1545 | //--On traite ici le cas de segments resultats non neccess. bornes |
| 1546 | //-- |
| 1547 | //--On prend la droite D1 comme reference ( pour le sens positif ) |
| 1548 | //-- |
| 1549 | Standard_Integer ResHasFirstPoint=0; |
| 1550 | Standard_Integer ResHasLastPoint=0; |
| 1551 | Standard_Real ParamStart,ParamStart2,ParamEnd,ParamEnd2; |
| 1552 | Standard_Real Org2SurL1=ElCLib::Parameter(L1,L2.Location()); |
| 1553 | //== 3 : L1 et L2 bornent |
| 1554 | //== 2 : L2 borne |
| 1555 | //== 1 : L1 borne |
| 1556 | if(Domain1.HasFirstPoint()) ResHasFirstPoint=1; |
| 1557 | if(Domain1.HasLastPoint()) ResHasLastPoint=1; |
| 1558 | if(Opposite) { |
| 1559 | if(Domain2.HasLastPoint()) ResHasFirstPoint+=2; |
| 1560 | if(Domain2.HasFirstPoint()) ResHasLastPoint+=2; |
| 1561 | } |
| 1562 | else { |
| 1563 | if(Domain2.HasLastPoint()) ResHasLastPoint+=2; |
| 1564 | if(Domain2.HasFirstPoint()) ResHasFirstPoint+=2; |
| 1565 | } |
| 1566 | if(ResHasFirstPoint==0 && ResHasLastPoint==0) { |
| 1567 | //~~~~ Creation d un segment infini avec Opposite |
| 1568 | Append(IntRes2d_IntersectionSegment(Opposite)); |
| 1569 | } |
| 1570 | else { //-- On obtient au pire une demi-droite |
| 1571 | switch(ResHasFirstPoint) { |
| 1572 | case 1: |
| 1573 | ParamStart=Domain1.FirstParameter(); |
| 1574 | ParamStart2=(Opposite)? (Org2SurL1-ParamStart) |
| 1575 | :(ParamStart-Org2SurL1); |
| 1576 | break; |
| 1577 | case 2: |
| 1578 | if(Opposite) { |
| 1579 | ParamStart2=Domain2.LastParameter(); |
| 1580 | ParamStart=Org2SurL1 - ParamStart2; |
| 1581 | } |
| 1582 | else { |
| 1583 | ParamStart2=Domain2.FirstParameter(); |
| 1584 | ParamStart=Org2SurL1 + ParamStart2; |
| 1585 | } |
| 1586 | break; |
| 1587 | case 3: |
| 1588 | if(Opposite) { |
| 1589 | ParamStart2=Domain2.LastParameter(); |
| 1590 | ParamStart=Org2SurL1 - ParamStart2; |
| 1591 | if(ParamStart < Domain1.FirstParameter()) { |
| 1592 | ParamStart=Domain1.FirstParameter(); |
| 1593 | ParamStart2=Org2SurL1 - ParamStart; |
| 1594 | } |
| 1595 | } |
| 1596 | else { |
| 1597 | ParamStart2=Domain2.FirstParameter(); |
| 1598 | ParamStart=Org2SurL1 + ParamStart2; |
| 1599 | if(ParamStart < Domain1.FirstParameter()) { |
| 1600 | ParamStart=Domain1.FirstParameter(); |
| 1601 | ParamStart2=ParamStart - Org2SurL1; |
| 1602 | } |
| 1603 | } |
| 1604 | break; |
| 1605 | default: //~~~ Segment Infini a gauche |
| 1606 | break; |
| 1607 | } |
| 1608 | |
| 1609 | switch(ResHasLastPoint) { |
| 1610 | case 1: |
| 1611 | ParamEnd=Domain1.LastParameter(); |
| 1612 | ParamEnd2=(Opposite)? (Org2SurL1-ParamEnd) |
| 1613 | :(ParamEnd-Org2SurL1); |
| 1614 | break; |
| 1615 | case 2: |
| 1616 | if(Opposite) { |
| 1617 | ParamEnd2=Domain2.FirstParameter(); |
| 1618 | ParamEnd=Org2SurL1 - ParamEnd2; |
| 1619 | } |
| 1620 | else { |
| 1621 | ParamEnd2=Domain2.LastParameter(); |
| 1622 | ParamEnd=Org2SurL1 + ParamEnd2; |
| 1623 | } |
| 1624 | break; |
| 1625 | case 3: |
| 1626 | if(Opposite) { |
| 1627 | ParamEnd2=Domain2.FirstParameter(); |
| 1628 | ParamEnd=Org2SurL1 - ParamEnd2; |
| 1629 | if(ParamEnd > Domain1.LastParameter()) { |
| 1630 | ParamEnd=Domain1.LastParameter(); |
| 1631 | ParamEnd2=Org2SurL1 - ParamEnd; |
| 1632 | } |
| 1633 | } |
| 1634 | else { |
| 1635 | ParamEnd2=Domain2.LastParameter(); |
| 1636 | ParamEnd=Org2SurL1 + ParamEnd2; |
| 1637 | if(ParamEnd > Domain1.LastParameter()) { |
| 1638 | ParamEnd=Domain1.LastParameter(); |
| 1639 | ParamEnd2=ParamEnd - Org2SurL1; |
| 1640 | } |
| 1641 | } |
| 1642 | default: //~~~ Segment Infini a droite |
| 1643 | break; |
| 1644 | } |
| 1645 | |
| 1646 | IntRes2d_Transition Tinf,Tsup; |
| 1647 | |
| 1648 | if(ResHasFirstPoint) { |
| 1649 | if(ResHasLastPoint) { |
| 1650 | //~~~ Creation de la borne superieure |
| 1651 | //~~~ L1 : |-------------> ou |--------------> |
| 1652 | //~~~ L2 : <------------| ou <----| |
| 1653 | if(ParamEnd >= (ParamStart-Tol)) { |
| 1654 | //~~~ Creation d un segment |
| 1655 | IntRes2d_Position Pos1,Pos2; |
| 1656 | Pos1=FindPositionLL(ParamStart,Domain1); |
| 1657 | Pos2=FindPositionLL(ParamStart2,Domain2); |
| 1658 | Tinf.SetValue(Standard_True,Pos1,IntRes2d_Unknown,Opposite); |
| 1659 | Tsup.SetValue(Standard_True,Pos2,IntRes2d_Unknown,Opposite); |
| 1660 | IntRes2d_IntersectionPoint P1(ElCLib::Value(ParamStart,L1) |
| 1661 | ,ParamStart,ParamStart2 |
| 1662 | ,Tinf,Tsup,Standard_False); |
| 1663 | if(ParamEnd > (ParamStart+Tol)) { |
| 1664 | //~~~ Le segment est assez long |
| 1665 | Pos1=FindPositionLL(ParamEnd,Domain1); |
| 1666 | Pos2=FindPositionLL(ParamEnd2,Domain2); |
| 1667 | Tinf.SetValue(Standard_True,Pos1,IntRes2d_Unknown,Opposite); |
| 1668 | Tsup.SetValue(Standard_True,Pos2,IntRes2d_Unknown,Opposite); |
| 1669 | |
| 1670 | IntRes2d_IntersectionPoint P2(ElCLib::Value(ParamEnd,L1) |
| 1671 | ,ParamEnd,ParamEnd2 |
| 1672 | ,Tinf,Tsup,Standard_False); |
| 1673 | IntRes2d_IntersectionSegment Seg(P1,P2,Opposite,Standard_False); |
| 1674 | Append(Seg); |
| 1675 | } |
| 1676 | else { //~~~~ le segment est de longueur inferieure a Tol |
| 1677 | Append(P1); |
| 1678 | } |
| 1679 | } //-- if( ParamEnd >= ...) |
| 1680 | } //-- if(ResHasLastPoint) |
| 1681 | else { |
| 1682 | //~~~ Creation de la demi droite |-----------> |
| 1683 | IntRes2d_Position Pos1=FindPositionLL(ParamStart,Domain1); |
| 1684 | IntRes2d_Position Pos2=FindPositionLL(ParamStart2,Domain2); |
| 1685 | Tinf.SetValue(Standard_True,Pos1,IntRes2d_Unknown,Opposite); |
| 1686 | Tsup.SetValue(Standard_True,Pos2,IntRes2d_Unknown,Opposite); |
| 1687 | |
| 1688 | IntRes2d_IntersectionPoint P(ElCLib::Value(ParamStart,L1) |
| 1689 | ,ParamStart,ParamStart2 |
| 1690 | ,Tinf,Tsup,Standard_False); |
| 1691 | IntRes2d_IntersectionSegment Seg(P,Standard_True,Opposite,Standard_False); |
| 1692 | Append(Seg); |
| 1693 | } |
| 1694 | } |
| 1695 | else { |
| 1696 | IntRes2d_Position Pos1=FindPositionLL(ParamEnd,Domain1); |
| 1697 | IntRes2d_Position Pos2=FindPositionLL(ParamEnd2,Domain2); |
| 1698 | Tinf.SetValue(Standard_True,Pos1,IntRes2d_Unknown,Opposite); |
| 1699 | Tsup.SetValue(Standard_True,Pos2,IntRes2d_Unknown,Opposite); |
| 1700 | |
| 1701 | IntRes2d_IntersectionPoint P2(ElCLib::Value(ParamEnd,L1) |
| 1702 | ,ParamEnd,ParamEnd2 |
| 1703 | ,Tinf,Tsup,Standard_False); |
| 1704 | IntRes2d_IntersectionSegment Seg(P2,Standard_False,Opposite,Standard_False); |
| 1705 | Append(Seg); |
| 1706 | //~~~ Creation de la demi droite <-----------| |
| 1707 | } |
| 1708 | } |
| 1709 | } |
| 1710 | } |
| 1711 | } |
| 1712 | |
| 1713 | |
| 1714 | //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 1715 | //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 1716 | void IntCurve_IntConicConic::Perform(const gp_Lin2d& Line |
| 1717 | ,const IntRes2d_Domain& LIG_Domain |
| 1718 | ,const gp_Circ2d& Circle |
| 1719 | ,const IntRes2d_Domain& CIRC_Domain |
| 1720 | ,const Standard_Real TolConf,const Standard_Real Tol) { |
| 1721 | |
| 1722 | //-- if(! CIRC_Domain.IsClosed()) { |
| 1723 | //-- Standard_ConstructionError::Raise("Domaine incorrect"); |
| 1724 | //-- } |
| 1725 | |
| 1726 | Standard_Boolean TheReversedParameters=ReversedParameters(); |
| 1727 | this->ResetFields(); |
| 1728 | this->SetReversedParameters(TheReversedParameters); |
| 1729 | |
| 1730 | Standard_Integer nbsol=0; |
| 1731 | PeriodicInterval CInt1,CInt2; |
| 1732 | |
| 1733 | LineCircleGeometricIntersection(Line,Circle,TolConf,Tol |
| 1734 | ,CInt1,CInt2 |
| 1735 | ,nbsol); |
| 1736 | |
| 1737 | done=Standard_True; |
| 1738 | |
| 1739 | if(nbsol==0) { //-- Pas de solutions |
| 1740 | return; |
| 1741 | } |
| 1742 | |
| 1743 | // Modified by Sergey KHROMOV - Mon Dec 18 11:13:18 2000 Begin |
| 1744 | if (nbsol == 2 && CInt2.Bsup == CInt1.Binf + PIpPI) { |
| 1745 | Standard_Real FirstBound = CIRC_Domain.FirstParameter(); |
| 1746 | Standard_Real LastBound = CIRC_Domain.LastParameter(); |
| 1747 | Standard_Real FirstTol = CIRC_Domain.FirstTolerance(); |
| 1748 | Standard_Real LastTol = CIRC_Domain.LastTolerance(); |
| 1749 | if (CInt1.Binf == 0 && FirstBound - FirstTol > CInt1.Bsup) { |
| 1750 | nbsol = 1; |
| 1751 | CInt1.SetValues(CInt2.Binf, CInt2.Bsup); |
| 1752 | } else if (CInt2.Bsup == PIpPI && LastBound + LastTol < CInt2.Binf) |
| 1753 | nbsol = 1; |
| 1754 | } |
| 1755 | // Modified by Sergey KHROMOV - Mon Dec 18 11:13:20 2000 End |
| 1756 | |
| 1757 | PeriodicInterval CDomain(CIRC_Domain); |
| 1758 | Standard_Real deltat = CDomain.Bsup-CDomain.Binf; |
| 1759 | while(CDomain.Binf >= PIpPI) CDomain.Binf-=PIpPI; |
| 1760 | while(CDomain.Binf < 0.0) CDomain.Binf+=PIpPI; |
| 1761 | CDomain.Bsup=CDomain.Binf+deltat; |
| 1762 | |
| 1763 | //------------------------------------------------------------ |
| 1764 | //-- Ajout : Jeudi 28 mars 96 |
| 1765 | //-- On agrandit artificiellement les domaines |
| 1766 | Standard_Real BinfModif = CDomain.Binf; |
| 1767 | Standard_Real BsupModif = CDomain.Bsup; |
| 1768 | BinfModif-=CIRC_Domain.FirstTolerance() / Circle.Radius(); |
| 1769 | BsupModif+=CIRC_Domain.LastTolerance() / Circle.Radius(); |
| 1770 | deltat = BsupModif-BinfModif; |
| 1771 | if(deltat<=PIpPI) { |
| 1772 | CDomain.Binf = BinfModif; |
| 1773 | CDomain.Bsup = BsupModif; |
| 1774 | } |
| 1775 | else { |
| 1776 | Standard_Real t=PIpPI-deltat; |
| 1777 | t*=0.5; |
| 1778 | CDomain.Binf = BinfModif+t; |
| 1779 | CDomain.Bsup = BsupModif-t; |
| 1780 | } |
| 1781 | deltat = CDomain.Bsup-CDomain.Binf; |
| 1782 | while(CDomain.Binf >= PIpPI) CDomain.Binf-=PIpPI; |
| 1783 | while(CDomain.Binf < 0.0) CDomain.Binf+=PIpPI; |
| 1784 | CDomain.Bsup=CDomain.Binf+deltat; |
| 1785 | //-- ------------------------------------------------------------ |
| 1786 | |
| 1787 | Interval LDomain(LIG_Domain); |
| 1788 | |
| 1789 | Standard_Integer NbSolTotal=0; |
| 1790 | |
| 1791 | PeriodicInterval SolutionCircle[4]; |
| 1792 | Interval SolutionLine[4]; |
| 1793 | |
| 1794 | //---------------------------------------------------------------------- |
| 1795 | //----------- Traitement du premier intervalle Geometrique CInt1 ---- |
| 1796 | //---------------------------------------------------------------------- |
| 1797 | //-- NbSolTotal est incremente a chaque Intervalle solution. |
| 1798 | //-- On stocke les intervalles dans les tableaux : SolutionCircle[4] |
| 1799 | //-- et SolutionLine[4] |
| 1800 | //-- des Exemples faciles donnent 3 Intersections |
| 1801 | //-- des Problemes numeriques peuvent peut etre en donner 4 ?????? |
| 1802 | //-- |
| 1803 | PeriodicInterval CDomainAndRes=CDomain.FirstIntersection(CInt1); |
| 1804 | |
| 1805 | ProjectOnLAndIntersectWithLDomain(Circle,Line |
| 1806 | ,CDomainAndRes |
| 1807 | ,LDomain |
| 1808 | ,SolutionCircle |
| 1809 | ,SolutionLine |
| 1810 | ,NbSolTotal |
| 1811 | ,LIG_Domain |
| 1812 | ,CIRC_Domain); |
| 1813 | |
| 1814 | CDomainAndRes=CDomain.SecondIntersection(CInt1); |
| 1815 | |
| 1816 | ProjectOnLAndIntersectWithLDomain(Circle,Line |
| 1817 | ,CDomainAndRes |
| 1818 | ,LDomain |
| 1819 | ,SolutionCircle |
| 1820 | ,SolutionLine |
| 1821 | ,NbSolTotal |
| 1822 | ,LIG_Domain |
| 1823 | ,CIRC_Domain); |
| 1824 | |
| 1825 | //---------------------------------------------------------------------- |
| 1826 | //----------- Traitement du second intervalle Geometrique C1_Int2 ---- |
| 1827 | //---------------------------------------------------------------------- |
| 1828 | if(nbsol==2) { |
| 1829 | CDomainAndRes=CDomain.FirstIntersection(CInt2); |
| 1830 | |
| 1831 | ProjectOnLAndIntersectWithLDomain(Circle,Line |
| 1832 | ,CDomainAndRes |
| 1833 | ,LDomain |
| 1834 | ,SolutionCircle |
| 1835 | ,SolutionLine |
| 1836 | ,NbSolTotal |
| 1837 | ,LIG_Domain |
| 1838 | ,CIRC_Domain); |
| 1839 | |
| 1840 | //-------------------------------------------------------------------- |
| 1841 | CDomainAndRes=CDomain.SecondIntersection(CInt2); |
| 1842 | |
| 1843 | |
| 1844 | ProjectOnLAndIntersectWithLDomain(Circle,Line |
| 1845 | ,CDomainAndRes |
| 1846 | ,LDomain |
| 1847 | ,SolutionCircle |
| 1848 | ,SolutionLine |
| 1849 | ,NbSolTotal |
| 1850 | ,LIG_Domain |
| 1851 | ,CIRC_Domain); |
| 1852 | } |
| 1853 | |
| 1854 | |
| 1855 | |
| 1856 | |
| 1857 | |
| 1858 | |
| 1859 | |
| 1860 | |
| 1861 | |
| 1862 | //---------------------------------------------------------------------- |
| 1863 | //-- Calcul de toutes les transitions et Positions. |
| 1864 | //-- |
| 1865 | //-- On determine si des intervalles sont reduit a des points |
| 1866 | //-- ( Rayon * Intervalle.Length() < TolConf ) ### Modif 19 Nov Tol-->TolConf |
| 1867 | //-- |
| 1868 | Standard_Real R=Circle.Radius(); |
| 1869 | Standard_Integer i ; |
| 1870 | Standard_Real MaxTol = TolConf; |
| 1871 | if(MaxTol<Tol) MaxTol = Tol; |
| 1872 | if(MaxTol<1.0e-10) MaxTol = 1.0e-10; |
| 1873 | |
| 1874 | for( i=0; i<NbSolTotal ; i++) { |
| 1875 | if((R * SolutionCircle[i].Length())<MaxTol |
| 1876 | && (SolutionLine[i].Length())<MaxTol) { |
| 1877 | |
| 1878 | Standard_Real t=(SolutionCircle[i].Binf+SolutionCircle[i].Bsup)*0.5; |
| 1879 | SolutionCircle[i].Binf=SolutionCircle[i].Bsup=t; |
| 1880 | |
| 1881 | t=(SolutionLine[i].Binf+SolutionLine[i].Bsup)*0.5; |
| 1882 | SolutionLine[i].Binf=SolutionLine[i].Bsup=t; |
| 1883 | } |
| 1884 | } |
| 1885 | #if 0 |
| 1886 | if(NbSolTotal == 2) { |
| 1887 | if(SolutionLine[0].Binf==SolutionLine[0].BSup) { |
| 1888 | if(SolutionLine[1].Binf==SolutionLine[1].BSup) { |
| 1889 | if(Abs(SolutionLine[0].Binf-SolutionLine[1].Binf)<TolConf) { |
| 1890 | SolutionLine[0].Binf=0.5*(SolutionLine[0].BSup+SolutionLine[1].BSup); |
| 1891 | SolutionLine[0].BSup=SolutionLine[0].Binf; |
| 1892 | NbSolTotal = 1; |
| 1893 | } |
| 1894 | } |
| 1895 | } |
| 1896 | } |
| 1897 | #endif |
| 1898 | //---------------------------------------------------------------------- |
| 1899 | //-- Traitement des intervalles (ou des points obtenus) |
| 1900 | //-- |
| 1901 | if(NbSolTotal) { |
| 1902 | gp_Ax22d CircleAxis=Circle.Axis(); |
| 1903 | gp_Ax2d LineAxis=Line.Position(); |
| 1904 | gp_Pnt2d P1a,P2a,P1b,P2b; |
| 1905 | gp_Vec2d Tan1,Tan2,Norm1; |
| 1906 | gp_Vec2d Norm2(0.0,0.0); |
| 1907 | IntRes2d_Transition T1a,T2a,T1b,T2b; |
| 1908 | IntRes2d_Position Pos1a,Pos1b,Pos2a,Pos2b; |
| 1909 | |
| 1910 | ElCLib::CircleD1(SolutionCircle[0].Binf,CircleAxis,R,P1a,Tan1); |
| 1911 | ElCLib::LineD1(SolutionLine[0].Binf,LineAxis,P2a,Tan2); |
| 1912 | |
| 1913 | Standard_Boolean Opposite=((Tan1.Dot(Tan2))<0.0)? Standard_True : Standard_False; |
| 1914 | |
| 1915 | |
| 1916 | for(i=0; i<NbSolTotal; i++ ) { |
| 1917 | |
| 1918 | |
| 1919 | //-- 7 aout 97 |
| 1920 | //-- On recentre Bin et Bsup de facon a avoir une portion commune avec CIRC_Domain |
| 1921 | Standard_Real p1=SolutionCircle[i].Binf; |
| 1922 | Standard_Real p2=SolutionCircle[i].Bsup; |
| 1923 | Standard_Real q1=CIRC_Domain.FirstParameter(); |
| 1924 | Standard_Real q2=CIRC_Domain.LastParameter(); |
| 1925 | //-- |------ CircDomain ------| [-- Sol --] |
| 1926 | if(p1>q2) { |
| 1927 | do { |
| 1928 | p1-=PIpPI; |
| 1929 | p2-=PIpPI; |
| 1930 | } |
| 1931 | while( (p1>q2) ); |
| 1932 | } |
| 1933 | else if(p2<q1) { |
| 1934 | do { |
| 1935 | p1+=PIpPI; |
| 1936 | p2+=PIpPI; |
| 1937 | } |
| 1938 | while( (p2<q1) ); |
| 1939 | } |
| 1940 | if(p1<q1 && p2>q1) { |
| 1941 | p1=q1; |
| 1942 | } |
| 1943 | if(p1<q2 && p2>q2) { |
| 1944 | p2=q2; |
| 1945 | } |
| 1946 | |
| 1947 | #if 0 |
| 1948 | if(SolutionCircle[i].Binf!=p1 || SolutionCircle[i].Bsup!=p2) { |
| 1949 | printf("\n IntCurve_IntConicConic_1.cxx : (%g , %g) --> (%g , %g)\n", |
| 1950 | SolutionCircle[i].Binf,SolutionCircle[i].Bsup,p1,p2); |
| 1951 | } |
| 1952 | #endif |
| 1953 | SolutionCircle[i].Binf=p1; |
| 1954 | SolutionCircle[i].Bsup=p2; |
| 1955 | |
| 1956 | //-- Fin 7 aout 97 |
| 1957 | |
| 1958 | |
| 1959 | Standard_Real Linf=(Opposite)? SolutionLine[i].Bsup : SolutionLine[i].Binf; |
| 1960 | Standard_Real Lsup=(Opposite)? SolutionLine[i].Binf : SolutionLine[i].Bsup; |
| 1961 | |
| 1962 | //--------------------------------------------------------------- |
| 1963 | //-- Si les parametres sur le cercle sont en premier |
| 1964 | //-- On doit retourner ces parametres dans l ordre croissant |
| 1965 | //--------------------------------------------------------------- |
| 1966 | if(Linf > Lsup) { |
| 1967 | Standard_Real T=SolutionCircle[i].Binf; |
| 1968 | SolutionCircle[i].Binf=SolutionCircle[i].Bsup; |
| 1969 | SolutionCircle[i].Bsup=T; |
| 1970 | |
| 1971 | T=Linf; Linf=Lsup; Lsup=T; |
| 1972 | } |
| 1973 | |
| 1974 | |
| 1975 | ElCLib::CircleD2(SolutionCircle[i].Binf,CircleAxis,R,P1a,Tan1,Norm1); |
| 1976 | ElCLib::LineD1(Linf,LineAxis,P2a,Tan2); |
| 1977 | |
| 1978 | IntImpParGen::DeterminePosition(Pos1a,CIRC_Domain,P1a,SolutionCircle[i].Binf); |
| 1979 | IntImpParGen::DeterminePosition(Pos2a,LIG_Domain,P2a,Linf); |
| 1980 | Determine_Transition_LC(Pos1a,Tan1,Norm1,T1a , Pos2a,Tan2,Norm2,T2a, Tol); |
| 1981 | Standard_Real Cinf; |
| 1982 | if(Pos1a==IntRes2d_End) { |
| 1983 | Cinf = CIRC_Domain.LastParameter(); |
| 1984 | P1a = CIRC_Domain.LastPoint(); |
| 1985 | Linf = ElCLib::Parameter(Line,P1a); |
| 1986 | |
| 1987 | ElCLib::CircleD2(Cinf,CircleAxis,R,P1a,Tan1,Norm1); |
| 1988 | ElCLib::LineD1(Linf,LineAxis,P2a,Tan2); |
| 1989 | IntImpParGen::DeterminePosition(Pos1a,CIRC_Domain,P1a,Cinf); |
| 1990 | IntImpParGen::DeterminePosition(Pos2a,LIG_Domain,P2a,Linf); |
| 1991 | Determine_Transition_LC(Pos1a,Tan1,Norm1,T1a , Pos2a,Tan2,Norm2,T2a, Tol); |
| 1992 | } |
| 1993 | else if(Pos1a==IntRes2d_Head) { |
| 1994 | Cinf = CIRC_Domain.FirstParameter(); |
| 1995 | P1a = CIRC_Domain.FirstPoint(); |
| 1996 | Linf = ElCLib::Parameter(Line,P1a); |
| 1997 | |
| 1998 | ElCLib::CircleD2(Cinf,CircleAxis,R,P1a,Tan1,Norm1); |
| 1999 | ElCLib::LineD1(Linf,LineAxis,P2a,Tan2); |
| 2000 | IntImpParGen::DeterminePosition(Pos1a,CIRC_Domain,P1a,Cinf); |
| 2001 | IntImpParGen::DeterminePosition(Pos2a,LIG_Domain,P2a,Linf); |
| 2002 | Determine_Transition_LC(Pos1a,Tan1,Norm1,T1a , Pos2a,Tan2,Norm2,T2a, Tol); |
| 2003 | } |
| 2004 | else { |
| 2005 | Cinf=NormalizeOnCircleDomain(SolutionCircle[i].Binf,CIRC_Domain); |
| 2006 | } |
| 2007 | |
| 2008 | IntRes2d_IntersectionPoint NewPoint1(P1a,Linf,Cinf,T2a,T1a,ReversedParameters()); |
| 2009 | |
| 2010 | if((SolutionLine[i].Length()+SolutionCircle[i].Length()) >0.0) { |
| 2011 | |
| 2012 | ElCLib::CircleD2(SolutionCircle[i].Bsup,CircleAxis,R,P1b,Tan1,Norm1); |
| 2013 | ElCLib::LineD1(Lsup,LineAxis,P2b,Tan2); |
| 2014 | |
| 2015 | IntImpParGen::DeterminePosition(Pos1b,CIRC_Domain,P1b,SolutionCircle[i].Bsup); |
| 2016 | IntImpParGen::DeterminePosition(Pos2b,LIG_Domain,P2b,Lsup); |
| 2017 | Determine_Transition_LC(Pos1b,Tan1,Norm1,T1b , Pos2b,Tan2,Norm2,T2b, Tol); |
| 2018 | Standard_Real Csup; |
| 2019 | if(Pos1b==IntRes2d_End) { |
| 2020 | Csup = CIRC_Domain.LastParameter(); |
| 2021 | P1b = CIRC_Domain.LastPoint(); |
| 2022 | Lsup = ElCLib::Parameter(Line,P1b); |
| 2023 | ElCLib::CircleD2(Csup,CircleAxis,R,P1b,Tan1,Norm1); |
| 2024 | ElCLib::LineD1(Lsup,LineAxis,P2b,Tan2); |
| 2025 | |
| 2026 | IntImpParGen::DeterminePosition(Pos1b,CIRC_Domain,P1b,Csup); |
| 2027 | IntImpParGen::DeterminePosition(Pos2b,LIG_Domain,P2b,Lsup); |
| 2028 | Determine_Transition_LC(Pos1b,Tan1,Norm1,T1b , Pos2b,Tan2,Norm2,T2b, Tol); |
| 2029 | } |
| 2030 | else if(Pos1b==IntRes2d_Head) { |
| 2031 | Csup = CIRC_Domain.FirstParameter(); |
| 2032 | P1b = CIRC_Domain.FirstPoint(); |
| 2033 | Lsup = ElCLib::Parameter(Line,P1b); |
| 2034 | ElCLib::CircleD2(Csup,CircleAxis,R,P1b,Tan1,Norm1); |
| 2035 | ElCLib::LineD1(Lsup,LineAxis,P2b,Tan2); |
| 2036 | |
| 2037 | IntImpParGen::DeterminePosition(Pos1b,CIRC_Domain,P1b,Csup); |
| 2038 | IntImpParGen::DeterminePosition(Pos2b,LIG_Domain,P2b,Lsup); |
| 2039 | Determine_Transition_LC(Pos1b,Tan1,Norm1,T1b , Pos2b,Tan2,Norm2,T2b, Tol); |
| 2040 | } |
| 2041 | else { |
| 2042 | Csup=NormalizeOnCircleDomain(SolutionCircle[i].Bsup,CIRC_Domain); |
| 2043 | } |
| 2044 | |
| 2045 | IntRes2d_IntersectionPoint NewPoint2(P1b,Lsup,Csup,T2b,T1b,ReversedParameters()); |
| 2046 | |
| 2047 | if(((Abs(Csup-Cinf)*R > MaxTol) && (Abs(Lsup-Linf) > MaxTol)) |
| 2048 | || (T1a.TransitionType() != T2a.TransitionType())) { |
| 2049 | //-- Verifier egalement les transitions |
| 2050 | |
| 2051 | IntRes2d_IntersectionSegment NewSeg(NewPoint1,NewPoint2 |
| 2052 | ,Opposite,ReversedParameters()); |
| 2053 | Append(NewSeg); |
| 2054 | } |
| 2055 | else { |
| 2056 | if(Pos1a!=IntRes2d_Middle || Pos2a!=IntRes2d_Middle) { |
| 2057 | Insert(NewPoint1); |
| 2058 | } |
| 2059 | if(Pos1b!=IntRes2d_Middle || Pos2b!=IntRes2d_Middle) { |
| 2060 | Insert(NewPoint2); |
| 2061 | } |
| 2062 | |
| 2063 | } |
| 2064 | } |
| 2065 | else { |
| 2066 | //--Standard_Real Cmid=NormalizeOnCircleDomain(0.5*(SolutionCircle[i].Bsup+SolutionCircle[i].Binf) |
| 2067 | //-- ,CIRC_Domain); |
| 2068 | //--IntRes2d_IntersectionPoint NewPoint(P2a,0.5*(Linf+Lsup) |
| 2069 | //-- ,Cmid |
| 2070 | //-- ,T2a,T1a,ReversedParameters()); |
| 2071 | Insert(NewPoint1); |
| 2072 | } |
| 2073 | } |
| 2074 | } |
| 2075 | } |
| 2076 | |
| 2077 | |
| 2078 | |
| 2079 | |
| 2080 | const IntRes2d_IntersectionPoint SegmentToPoint( const IntRes2d_IntersectionPoint& Pa |
| 2081 | ,const IntRes2d_Transition& T1a |
| 2082 | ,const IntRes2d_Transition& T2a |
| 2083 | ,const IntRes2d_IntersectionPoint& Pb |
| 2084 | ,const IntRes2d_Transition& T1b |
| 2085 | ,const IntRes2d_Transition& T2b) { |
| 2086 | |
| 2087 | if((T1b.PositionOnCurve() == IntRes2d_Middle) |
| 2088 | && (T2b.PositionOnCurve() == IntRes2d_Middle)) { |
| 2089 | return(Pa); |
| 2090 | } |
| 2091 | if((T1a.PositionOnCurve() == IntRes2d_Middle) |
| 2092 | && (T2a.PositionOnCurve() == IntRes2d_Middle)) { |
| 2093 | return(Pb); |
| 2094 | } |
| 2095 | |
| 2096 | IntRes2d_Transition t1 = T1a; |
| 2097 | IntRes2d_Transition t2 = T2a; |
| 2098 | Standard_Real u1 = Pa.ParamOnFirst(); |
| 2099 | Standard_Real u2 = Pa.ParamOnSecond(); |
| 2100 | |
| 2101 | |
| 2102 | if(t1.PositionOnCurve() == IntRes2d_Middle) { |
| 2103 | t1.SetPosition(T1b.PositionOnCurve()); |
| 2104 | u1 = Pb.ParamOnFirst(); |
| 2105 | } |
| 2106 | if(t2.PositionOnCurve() == IntRes2d_Middle) { |
| 2107 | t2.SetPosition(T2b.PositionOnCurve()); |
| 2108 | u2 = Pb.ParamOnSecond(); |
| 2109 | } |
| 2110 | return(IntRes2d_IntersectionPoint(Pa.Value(),u1,u2,t1,t2,Standard_False)); |
| 2111 | } |