| 1 | // Created on: 1995-01-17 |
| 2 | // Created by: Remi LEQUETTE |
| 3 | // Copyright (c) 1995-1999 Matra Datavision |
| 4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
| 5 | // |
| 6 | // This file is part of Open CASCADE Technology software library. |
| 7 | // |
| 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 |
| 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. |
| 13 | // |
| 14 | // Alternatively, this file may be used under the terms of Open CASCADE |
| 15 | // commercial license or contractual agreement. |
| 16 | |
| 17 | #include <Geom_BSplineCurve.hxx> |
| 18 | #include <Geom_BSplineSurface.hxx> |
| 19 | #include <Draw.hxx> |
| 20 | #include <Draw_Interpretor.hxx> |
| 21 | #include <DrawTrSurf.hxx> |
| 22 | #include <Draw_Appli.hxx> |
| 23 | #include <GeometryTest.hxx> |
| 24 | #include <GeomAPI_ProjectPointOnCurve.hxx> |
| 25 | #include <GeomAPI_ProjectPointOnSurf.hxx> |
| 26 | #include <Extrema_GenLocateExtPS.hxx> |
| 27 | #include <GeomAPI_ExtremaCurveCurve.hxx> |
| 28 | #include <GeomAPI_ExtremaCurveSurface.hxx> |
| 29 | #include <GeomAPI_ExtremaSurfaceSurface.hxx> |
| 30 | #include <GeomAPI_PointsToBSpline.hxx> |
| 31 | #include <GeomAPI_PointsToBSplineSurface.hxx> |
| 32 | #include <Geom_Line.hxx> |
| 33 | #include <Geom_TrimmedCurve.hxx> |
| 34 | #include <Draw_Segment3D.hxx> |
| 35 | #include <Draw_Marker3D.hxx> |
| 36 | #include <Draw_Color.hxx> |
| 37 | #include <Draw_MarkerShape.hxx> |
| 38 | #include <TColgp_Array1OfPnt.hxx> |
| 39 | #include <TColgp_Array2OfPnt.hxx> |
| 40 | #include <TColStd_Array2OfReal.hxx> |
| 41 | #include <Precision.hxx> |
| 42 | #include <stdio.h> |
| 43 | |
| 44 | #ifdef _WIN32 |
| 45 | Standard_IMPORT Draw_Viewer dout; |
| 46 | #endif |
| 47 | |
| 48 | //======================================================================= |
| 49 | //function : proj |
| 50 | //purpose : |
| 51 | //======================================================================= |
| 52 | |
| 53 | static void showProjSolution(Draw_Interpretor& di, |
| 54 | const Standard_Integer i, |
| 55 | const gp_Pnt& P, const gp_Pnt& P1, |
| 56 | const Standard_Real U, const Standard_Real V, |
| 57 | const Standard_Boolean isSurface) |
| 58 | { |
| 59 | char name[100]; |
| 60 | Sprintf(name, "%s%d", "ext_", i); |
| 61 | di << name << " "; |
| 62 | char* temp = name; // portage WNT |
| 63 | if (P.Distance(P1) > Precision::Confusion()) |
| 64 | { |
| 65 | Handle(Geom_Line) L = new Geom_Line(P, gp_Vec(P, P1)); |
| 66 | Handle(Geom_TrimmedCurve) CT = |
| 67 | new Geom_TrimmedCurve(L, 0., P.Distance(P1)); |
| 68 | DrawTrSurf::Set(temp, CT); |
| 69 | } |
| 70 | else |
| 71 | { |
| 72 | DrawTrSurf::Set(temp, P1); |
| 73 | if (isSurface) |
| 74 | di << " Point on surface "; |
| 75 | else |
| 76 | di << " Point on curve "; |
| 77 | } |
| 78 | if (isSurface) |
| 79 | di << " Parameters: " << U << " " << V << "\n"; |
| 80 | else |
| 81 | di << " parameter " << i << " = " << U << "\n"; |
| 82 | } |
| 83 | |
| 84 | //======================================================================= |
| 85 | //function : proj |
| 86 | //purpose : |
| 87 | //======================================================================= |
| 88 | |
| 89 | static Standard_Integer proj (Draw_Interpretor& di, Standard_Integer n, const char** a) |
| 90 | { |
| 91 | if ( n < 5) |
| 92 | { |
| 93 | std::cout << " Use proj curve/surf x y z [{extrema algo: g(grad)/t(tree)}|{u v}]" << std::endl; |
| 94 | return 1; |
| 95 | } |
| 96 | |
| 97 | gp_Pnt P(Draw::Atof(a[2]),Draw::Atof(a[3]),Draw::Atof(a[4])); |
| 98 | |
| 99 | Handle(Geom_Curve) GC = DrawTrSurf::GetCurve(a[1]); |
| 100 | Handle(Geom_Surface) GS; |
| 101 | Extrema_ExtAlgo aProjAlgo = Extrema_ExtAlgo_Grad; |
| 102 | |
| 103 | if (n == 6 && a[5][0] == 't') |
| 104 | aProjAlgo = Extrema_ExtAlgo_Tree; |
| 105 | |
| 106 | if (GC.IsNull()) |
| 107 | { |
| 108 | GS = DrawTrSurf::GetSurface(a[1]); |
| 109 | |
| 110 | if (GS.IsNull()) |
| 111 | return 1; |
| 112 | |
| 113 | if (n <= 6) |
| 114 | { |
| 115 | Standard_Real U1, U2, V1, V2; |
| 116 | GS->Bounds(U1,U2,V1,V2); |
| 117 | |
| 118 | GeomAPI_ProjectPointOnSurf proj(P,GS,U1,U2,V1,V2,aProjAlgo); |
| 119 | if (!proj.IsDone()) |
| 120 | { |
| 121 | di << "projection failed."; |
| 122 | return 0; |
| 123 | } |
| 124 | |
| 125 | Standard_Real UU,VV; |
| 126 | for ( Standard_Integer i = 1; i <= proj.NbPoints(); i++) |
| 127 | { |
| 128 | gp_Pnt P1 = proj.Point(i); |
| 129 | proj.Parameters(i, UU, VV); |
| 130 | showProjSolution(di, i, P, P1, UU, VV, Standard_True); |
| 131 | } |
| 132 | } |
| 133 | else if (n == 7) |
| 134 | { |
| 135 | const gp_XY aP2d(Draw::Atof(a[5]), Draw::Atof(a[6])); |
| 136 | GeomAdaptor_Surface aGAS(GS); |
| 137 | Extrema_GenLocateExtPS aProjector(aGAS, Precision::PConfusion(), Precision::PConfusion()); |
| 138 | aProjector.Perform(P, aP2d.X(), aP2d.Y()); |
| 139 | if (!aProjector.IsDone()) |
| 140 | { |
| 141 | di << "projection failed."; |
| 142 | return 0; |
| 143 | } |
| 144 | |
| 145 | const Extrema_POnSurf& aP = aProjector.Point(); |
| 146 | Standard_Real UU, VV; |
| 147 | aP.Parameter(UU, VV); |
| 148 | showProjSolution(di, 1, P, aP.Value(), UU, VV, Standard_True); |
| 149 | } |
| 150 | } |
| 151 | else |
| 152 | { |
| 153 | GeomAPI_ProjectPointOnCurve proj(P,GC,GC->FirstParameter(), |
| 154 | GC->LastParameter()); |
| 155 | |
| 156 | if(proj.NbPoints() == 0) |
| 157 | { |
| 158 | std::cout << "No project point was found." << std::endl; |
| 159 | return 0; |
| 160 | } |
| 161 | |
| 162 | for ( Standard_Integer i = 1; i <= proj.NbPoints(); i++) |
| 163 | { |
| 164 | gp_Pnt P1 = proj.Point(i); |
| 165 | Standard_Real UU = proj.Parameter(i); |
| 166 | showProjSolution(di, i, P, P1, UU, UU, Standard_False); |
| 167 | } |
| 168 | } |
| 169 | |
| 170 | return 0; |
| 171 | } |
| 172 | |
| 173 | //======================================================================= |
| 174 | //function : appro |
| 175 | //purpose : |
| 176 | //======================================================================= |
| 177 | |
| 178 | static Standard_Integer appro(Draw_Interpretor& di, Standard_Integer n, const char** a) |
| 179 | { |
| 180 | if ( n<3) return 1; |
| 181 | |
| 182 | Handle(Geom_Curve) GC; |
| 183 | Standard_Integer Nb = Draw::Atoi(a[2]); |
| 184 | |
| 185 | TColgp_Array1OfPnt Points(1, Nb); |
| 186 | |
| 187 | Handle(Draw_Marker3D) mark; |
| 188 | |
| 189 | if ( n == 4) { |
| 190 | GC = DrawTrSurf::GetCurve(a[3]); |
| 191 | if ( GC.IsNull()) |
| 192 | return 1; |
| 193 | |
| 194 | Standard_Real U, U1, U2; |
| 195 | U1 = GC->FirstParameter(); |
| 196 | U2 = GC->LastParameter(); |
| 197 | Standard_Real Delta = ( U2 - U1) / (Nb-1); |
| 198 | for ( Standard_Integer i = 1 ; i <= Nb; i++) { |
| 199 | U = U1 + (i-1) * Delta; |
| 200 | Points(i) = GC->Value(U); |
| 201 | mark = new Draw_Marker3D( Points(i), Draw_X, Draw_vert); |
| 202 | dout << mark; |
| 203 | } |
| 204 | } |
| 205 | else { |
| 206 | Standard_Integer id,XX,YY,b; |
| 207 | dout.Select(id,XX,YY,b); |
| 208 | Standard_Real zoom = dout.Zoom(id); |
| 209 | |
| 210 | Points(1) = gp_Pnt( ((Standard_Real)XX)/zoom, |
| 211 | ((Standard_Real)YY)/zoom, |
| 212 | 0.); |
| 213 | |
| 214 | mark = new Draw_Marker3D( Points(1), Draw_X, Draw_vert); |
| 215 | |
| 216 | dout << mark; |
| 217 | |
| 218 | for (Standard_Integer i = 2; i<=Nb; i++) { |
| 219 | dout.Select(id,XX,YY,b); |
| 220 | Points(i) = gp_Pnt( ((Standard_Real)XX)/zoom, |
| 221 | ((Standard_Real)YY)/zoom, |
| 222 | 0.); |
| 223 | mark = new Draw_Marker3D( Points(i), Draw_X, Draw_vert); |
| 224 | dout << mark; |
| 225 | } |
| 226 | } |
| 227 | dout.Flush(); |
| 228 | Standard_Integer Dmin = 3; |
| 229 | Standard_Integer Dmax = 8; |
| 230 | Standard_Real Tol3d = 1.e-3; |
| 231 | |
| 232 | Handle(Geom_BSplineCurve) TheCurve; |
| 233 | GeomAPI_PointsToBSpline aPointToBSpline(Points,Dmin,Dmax,GeomAbs_C2,Tol3d); |
| 234 | TheCurve = aPointToBSpline.Curve(); |
| 235 | |
| 236 | |
| 237 | DrawTrSurf::Set(a[1], TheCurve); |
| 238 | di << a[1]; |
| 239 | |
| 240 | return 0; |
| 241 | |
| 242 | } |
| 243 | |
| 244 | |
| 245 | //======================================================================= |
| 246 | //function : grilapp |
| 247 | //purpose : |
| 248 | //======================================================================= |
| 249 | |
| 250 | static Standard_Integer grilapp(Draw_Interpretor& di, Standard_Integer n, const char** a) |
| 251 | { |
| 252 | if ( n < 12) return 1; |
| 253 | |
| 254 | Standard_Integer i,j; |
| 255 | Standard_Integer Nu = Draw::Atoi(a[2]); |
| 256 | Standard_Integer Nv = Draw::Atoi(a[3]); |
| 257 | TColStd_Array2OfReal ZPoints (1, Nu, 1, Nv); |
| 258 | |
| 259 | Standard_Real X0 = Draw::Atof(a[4]); |
| 260 | Standard_Real dX = Draw::Atof(a[5]); |
| 261 | Standard_Real Y0 = Draw::Atof(a[6]); |
| 262 | Standard_Real dY = Draw::Atof(a[7]); |
| 263 | |
| 264 | Standard_Integer Count = 8; |
| 265 | for ( j = 1; j <= Nv; j++) { |
| 266 | for ( i = 1; i <= Nu; i++) { |
| 267 | if ( Count > n) return 1; |
| 268 | ZPoints(i,j) = Draw::Atof(a[Count]); |
| 269 | Count++; |
| 270 | } |
| 271 | } |
| 272 | |
| 273 | Handle(Geom_BSplineSurface) S |
| 274 | = GeomAPI_PointsToBSplineSurface(ZPoints,X0,dX,Y0,dY); |
| 275 | DrawTrSurf::Set(a[1],S); |
| 276 | |
| 277 | di << a[1]; |
| 278 | |
| 279 | return 0; |
| 280 | } |
| 281 | |
| 282 | //======================================================================= |
| 283 | //function : surfapp |
| 284 | //purpose : |
| 285 | //======================================================================= |
| 286 | |
| 287 | static Standard_Integer surfapp(Draw_Interpretor& di, Standard_Integer n, const char** a) |
| 288 | { |
| 289 | if (n < 5) return 1; |
| 290 | |
| 291 | Standard_Integer i, j; |
| 292 | Standard_Integer Nu = Draw::Atoi(a[2]); |
| 293 | Standard_Integer Nv = Draw::Atoi(a[3]); |
| 294 | TColgp_Array2OfPnt Points(1, Nu, 1, Nv); |
| 295 | Standard_Boolean IsPeriodic = Standard_False; |
| 296 | Standard_Boolean RemoveLast = Standard_False; |
| 297 | |
| 298 | if (n >= 5 && n <= 6) { |
| 299 | Handle(Geom_Surface) Surf = DrawTrSurf::GetSurface(a[4]); |
| 300 | if (Surf.IsNull()) return 1; |
| 301 | |
| 302 | Standard_Real U, V, U1, V1, U2, V2; |
| 303 | Surf->Bounds(U1, U2, V1, V2); |
| 304 | for (j = 1; j <= Nv; j++) { |
| 305 | V = V1 + (j - 1) * (V2 - V1) / (Nv - 1); |
| 306 | for (i = 1; i <= Nu; i++) { |
| 307 | U = U1 + (i - 1) * (U2 - U1) / (Nu - 1); |
| 308 | Points(i, j) = Surf->Value(U, V); |
| 309 | } |
| 310 | } |
| 311 | if (n == 6) |
| 312 | { |
| 313 | Standard_Integer ip = Draw::Atoi(a[5]); |
| 314 | if (ip > 0) IsPeriodic = Standard_True; |
| 315 | } |
| 316 | if (IsPeriodic) |
| 317 | { |
| 318 | for (j = 1; j <= Nv; j++) |
| 319 | { |
| 320 | Standard_Real d = Points(1, j).Distance(Points(Nu, j)); |
| 321 | if (d <= Precision::Confusion()) |
| 322 | { |
| 323 | RemoveLast = Standard_True; |
| 324 | break; |
| 325 | } |
| 326 | } |
| 327 | } |
| 328 | } |
| 329 | else if (n >= 16) { |
| 330 | Standard_Integer Count = 4; |
| 331 | for (j = 1; j <= Nv; j++) { |
| 332 | for (i = 1; i <= Nu; i++) { |
| 333 | if (Count > n) return 1; |
| 334 | Points(i, j) = gp_Pnt(Draw::Atof(a[Count]), Draw::Atof(a[Count + 1]), Draw::Atof(a[Count + 2])); |
| 335 | Count += 3; |
| 336 | } |
| 337 | } |
| 338 | } |
| 339 | char name[100]; |
| 340 | Standard_Integer Count = 1; |
| 341 | for (j = 1; j <= Nv; j++) { |
| 342 | for (i = 1; i <= Nu; i++) { |
| 343 | Sprintf(name, "point_%d", Count++); |
| 344 | char* temp = name; // portage WNT |
| 345 | DrawTrSurf::Set(temp, Points(i, j)); |
| 346 | } |
| 347 | } |
| 348 | |
| 349 | GeomAPI_PointsToBSplineSurface anApprox; |
| 350 | if (RemoveLast) |
| 351 | { |
| 352 | TColgp_Array2OfPnt Points1(1, Nu - 1, 1, Nv); |
| 353 | for (j = 1; j <= Nv; j++) |
| 354 | { |
| 355 | for (i = 1; i <= Nu - 1; i++) { |
| 356 | Points1(i, j) = Points(i, j); |
| 357 | } |
| 358 | } |
| 359 | anApprox.Init(Points1, Approx_ChordLength, 3, 8, GeomAbs_C2, 1.e-3, IsPeriodic); |
| 360 | } |
| 361 | else |
| 362 | { |
| 363 | anApprox.Init(Points, Approx_ChordLength, 3, 8, GeomAbs_C2, 1.e-3, IsPeriodic); |
| 364 | } |
| 365 | |
| 366 | if (anApprox.IsDone()) |
| 367 | { |
| 368 | Handle(Geom_BSplineSurface) S = anApprox.Surface(); |
| 369 | DrawTrSurf::Set(a[1], S); |
| 370 | di << a[1]; |
| 371 | } |
| 372 | |
| 373 | return 0; |
| 374 | } |
| 375 | |
| 376 | //======================================================================= |
| 377 | //function : surfint |
| 378 | //purpose : |
| 379 | //======================================================================= |
| 380 | |
| 381 | static Standard_Integer surfint(Draw_Interpretor& di, Standard_Integer n, const char** a) |
| 382 | { |
| 383 | if (n < 5) return 1; |
| 384 | |
| 385 | Handle(Geom_Surface) Surf = DrawTrSurf::GetSurface(a[2]); |
| 386 | if (Surf.IsNull()) return 1; |
| 387 | Standard_Integer i, j; |
| 388 | Standard_Integer Nu = Draw::Atoi(a[3]); |
| 389 | Standard_Integer Nv = Draw::Atoi(a[4]); |
| 390 | TColgp_Array2OfPnt Points(1, Nu, 1, Nv); |
| 391 | |
| 392 | Standard_Real U, V, U1, V1, U2, V2; |
| 393 | Surf->Bounds(U1, U2, V1, V2); |
| 394 | for (j = 1; j <= Nv; j++) { |
| 395 | V = V1 + (j - 1) * (V2 - V1) / (Nv - 1); |
| 396 | for (i = 1; i <= Nu; i++) { |
| 397 | U = U1 + (i - 1) * (U2 - U1) / (Nu - 1); |
| 398 | Points(i, j) = Surf->Value(U, V); |
| 399 | } |
| 400 | } |
| 401 | |
| 402 | char name[100]; |
| 403 | Standard_Integer Count = 1; |
| 404 | for (j = 1; j <= Nv; j++) { |
| 405 | for (i = 1; i <= Nu; i++) { |
| 406 | Sprintf(name, "point_%d", Count++); |
| 407 | char* temp = name; // portage WNT |
| 408 | DrawTrSurf::Set(temp, Points(i, j)); |
| 409 | } |
| 410 | } |
| 411 | |
| 412 | Standard_Boolean IsPeriodic = Standard_False; |
| 413 | if (n > 5) |
| 414 | { |
| 415 | Standard_Integer ip = Draw::Atoi(a[5]); |
| 416 | if (ip > 0) IsPeriodic = Standard_True; |
| 417 | } |
| 418 | Standard_Boolean RemoveLast = Standard_False; |
| 419 | if (IsPeriodic) |
| 420 | { |
| 421 | for (j = 1; j <= Nv; j++) |
| 422 | { |
| 423 | Standard_Real d = Points(1, j).Distance(Points(Nu, j)); |
| 424 | if (d <= Precision::Confusion()) |
| 425 | { |
| 426 | RemoveLast = Standard_True; |
| 427 | break; |
| 428 | } |
| 429 | } |
| 430 | } |
| 431 | const Approx_ParametrizationType ParType = Approx_ChordLength; |
| 432 | GeomAPI_PointsToBSplineSurface anApprox; |
| 433 | if (RemoveLast) |
| 434 | { |
| 435 | TColgp_Array2OfPnt Points1(1, Nu-1, 1, Nv); |
| 436 | for (j = 1; j <= Nv; j++) |
| 437 | { |
| 438 | for (i = 1; i <= Nu-1; i++) { |
| 439 | Points1(i, j) = Points(i, j); |
| 440 | } |
| 441 | } |
| 442 | anApprox.Interpolate(Points1, ParType, IsPeriodic); |
| 443 | } |
| 444 | else |
| 445 | { |
| 446 | anApprox.Interpolate(Points, ParType, IsPeriodic); |
| 447 | } |
| 448 | if (anApprox.IsDone()) |
| 449 | { |
| 450 | Handle(Geom_BSplineSurface) S = anApprox.Surface(); |
| 451 | DrawTrSurf::Set(a[1], S); |
| 452 | di << a[1]; |
| 453 | } |
| 454 | else |
| 455 | { |
| 456 | di << "Interpolation not done \n"; |
| 457 | } |
| 458 | |
| 459 | |
| 460 | return 0; |
| 461 | } |
| 462 | |
| 463 | |
| 464 | //======================================================================= |
| 465 | //function : extrema |
| 466 | //purpose : |
| 467 | //======================================================================= |
| 468 | |
| 469 | static Standard_Integer extrema(Draw_Interpretor& di, Standard_Integer n, const char** a) |
| 470 | { |
| 471 | if (n < 3) |
| 472 | { |
| 473 | return 1; |
| 474 | } |
| 475 | |
| 476 | Handle(Geom_Curve) GC1, GC2; |
| 477 | Handle(Geom_Surface) GS1, GS2; |
| 478 | |
| 479 | Standard_Boolean isInfinitySolutions = Standard_False; |
| 480 | Standard_Real aMinDist = RealLast(); |
| 481 | |
| 482 | Standard_Real U1f, U1l, U2f, U2l, V1f = 0., V1l = 0., V2f = 0., V2l = 0.; |
| 483 | |
| 484 | GC1 = DrawTrSurf::GetCurve(a[1]); |
| 485 | if ( GC1.IsNull()) { |
| 486 | GS1 = DrawTrSurf::GetSurface(a[1]); |
| 487 | if ( GS1.IsNull()) |
| 488 | return 1; |
| 489 | |
| 490 | GS1->Bounds(U1f,U1l,V1f,V1l); |
| 491 | } |
| 492 | else { |
| 493 | U1f = GC1->FirstParameter(); |
| 494 | U1l = GC1->LastParameter(); |
| 495 | } |
| 496 | |
| 497 | GC2 = DrawTrSurf::GetCurve(a[2]); |
| 498 | if ( GC2.IsNull()) { |
| 499 | GS2 = DrawTrSurf::GetSurface(a[2]); |
| 500 | if ( GS2.IsNull()) |
| 501 | return 1; |
| 502 | GS2->Bounds(U2f,U2l,V2f,V2l); |
| 503 | } |
| 504 | else { |
| 505 | U2f = GC2->FirstParameter(); |
| 506 | U2l = GC2->LastParameter(); |
| 507 | } |
| 508 | |
| 509 | NCollection_Vector<gp_Pnt> aPnts1, aPnts2; |
| 510 | NCollection_Vector<Standard_Real> aPrms[4]; |
| 511 | if (!GC1.IsNull() && !GC2.IsNull()) |
| 512 | { |
| 513 | GeomAPI_ExtremaCurveCurve Ex(GC1, GC2, U1f, U1l, U2f, U2l); |
| 514 | |
| 515 | // Since GeomAPI cannot provide access to flag directly. |
| 516 | isInfinitySolutions = Ex.Extrema().IsParallel(); |
| 517 | if (isInfinitySolutions) |
| 518 | { |
| 519 | aMinDist = Ex.LowerDistance(); |
| 520 | } |
| 521 | else |
| 522 | { |
| 523 | for (Standard_Integer aJ = 1; aJ <= Ex.NbExtrema(); ++aJ) |
| 524 | { |
| 525 | gp_Pnt aP1, aP2; |
| 526 | Ex.Points(aJ, aP1, aP2); |
| 527 | aPnts1.Append(aP1); |
| 528 | aPnts2.Append(aP2); |
| 529 | |
| 530 | Standard_Real aU1, aU2; |
| 531 | Ex.Parameters(aJ, aU1, aU2); |
| 532 | aPrms[0].Append(aU1); |
| 533 | aPrms[2].Append(aU2); |
| 534 | } |
| 535 | } |
| 536 | } |
| 537 | else if (!GC1.IsNull() && !GS2.IsNull()) |
| 538 | { |
| 539 | GeomAPI_ExtremaCurveSurface Ex(GC1, GS2, U1f, U1l, U2f, U2l, V2f, V2l); |
| 540 | |
| 541 | isInfinitySolutions = Ex.Extrema().IsParallel(); |
| 542 | if (isInfinitySolutions) |
| 543 | { |
| 544 | aMinDist = Ex.LowerDistance(); |
| 545 | } |
| 546 | else |
| 547 | { |
| 548 | for (Standard_Integer aJ = 1; aJ <= Ex.NbExtrema(); ++aJ) |
| 549 | { |
| 550 | gp_Pnt aP1, aP2; |
| 551 | Ex.Points(aJ, aP1, aP2); |
| 552 | aPnts1.Append(aP1); |
| 553 | aPnts2.Append(aP2); |
| 554 | |
| 555 | Standard_Real aU1, aU2, aV2; |
| 556 | Ex.Parameters(aJ, aU1, aU2, aV2); |
| 557 | aPrms[0].Append(aU1); |
| 558 | aPrms[2].Append(aU2); |
| 559 | aPrms[3].Append(aV2); |
| 560 | } |
| 561 | } |
| 562 | } |
| 563 | else if (!GS1.IsNull() && !GC2.IsNull()) |
| 564 | { |
| 565 | GeomAPI_ExtremaCurveSurface Ex(GC2, GS1, U2f, U2l, U1f, U1l, V1f, V1l); |
| 566 | |
| 567 | isInfinitySolutions = Ex.Extrema().IsParallel(); |
| 568 | if (isInfinitySolutions) |
| 569 | { |
| 570 | aMinDist = Ex.LowerDistance(); |
| 571 | } |
| 572 | else |
| 573 | { |
| 574 | for (Standard_Integer aJ = 1; aJ <= Ex.NbExtrema(); ++aJ) |
| 575 | { |
| 576 | gp_Pnt aP2, aP1; |
| 577 | Ex.Points(aJ, aP2, aP1); |
| 578 | aPnts1.Append(aP1); |
| 579 | aPnts2.Append(aP2); |
| 580 | |
| 581 | Standard_Real aU1, aV1, aU2; |
| 582 | Ex.Parameters(aJ, aU2, aU1, aV1); |
| 583 | aPrms[0].Append(aU1); |
| 584 | aPrms[1].Append(aV1); |
| 585 | aPrms[2].Append(aU2); |
| 586 | } |
| 587 | } |
| 588 | } |
| 589 | else if (!GS1.IsNull() && !GS2.IsNull()) |
| 590 | { |
| 591 | GeomAPI_ExtremaSurfaceSurface Ex(GS1, GS2, U1f, U1l, V1f, V1l, U2f, U2l, V2f, V2l); |
| 592 | // Since GeomAPI cannot provide access to flag directly. |
| 593 | isInfinitySolutions = Ex.Extrema().IsParallel(); |
| 594 | if (isInfinitySolutions) |
| 595 | { |
| 596 | aMinDist = Ex.LowerDistance(); |
| 597 | } |
| 598 | else |
| 599 | { |
| 600 | for (Standard_Integer aJ = 1; aJ <= Ex.NbExtrema(); ++aJ) |
| 601 | { |
| 602 | gp_Pnt aP1, aP2; |
| 603 | Ex.Points(aJ, aP1, aP2); |
| 604 | aPnts1.Append(aP1); |
| 605 | aPnts2.Append(aP2); |
| 606 | |
| 607 | Standard_Real aU1, aV1, aU2, aV2; |
| 608 | Ex.Parameters(aJ, aU1, aV1, aU2, aV2); |
| 609 | aPrms[0].Append(aU1); |
| 610 | aPrms[1].Append(aV1); |
| 611 | aPrms[2].Append(aU2); |
| 612 | aPrms[3].Append(aV2); |
| 613 | } |
| 614 | } |
| 615 | } |
| 616 | |
| 617 | char aName[100]; |
| 618 | char* aName2 = aName; // portage WNT |
| 619 | |
| 620 | // Output points. |
| 621 | const Standard_Integer aPntCount = aPnts1.Size(); |
| 622 | if (aPntCount == 0 || isInfinitySolutions) |
| 623 | { |
| 624 | // Infinity solutions flag may be set with 0 number of |
| 625 | // solutions in analytic extrema Curve/Curve. |
| 626 | if (isInfinitySolutions) |
| 627 | di << "Infinite number of extremas, distance = " << aMinDist << "\n"; |
| 628 | else |
| 629 | di << "No solutions!\n"; |
| 630 | } |
| 631 | for (Standard_Integer aJ = 1; aJ <= aPntCount; aJ++) |
| 632 | { |
| 633 | gp_Pnt aP1 = aPnts1(aJ - 1), aP2 = aPnts2(aJ - 1); |
| 634 | |
| 635 | if (aP1.Distance(aP2) < 1.e-16) |
| 636 | { |
| 637 | di << "Extrema " << aJ << " is point : " << |
| 638 | aP1.X() << " " << aP1.Y() << " " << aP1.Z() << "\n"; |
| 639 | continue; |
| 640 | } |
| 641 | |
| 642 | Handle(Geom_Line) aL = new Geom_Line(aP1, gp_Vec(aP1, aP2)); |
| 643 | Handle(Geom_TrimmedCurve) aCT = |
| 644 | new Geom_TrimmedCurve(aL, 0., aP1.Distance(aP2)); |
| 645 | Sprintf(aName, "%s%d", "ext_", aJ); |
| 646 | DrawTrSurf::Set(aName2, aCT); |
| 647 | di << aName << " "; |
| 648 | } |
| 649 | |
| 650 | if (n >= 4) |
| 651 | { |
| 652 | // Output points. |
| 653 | for (Standard_Integer aJ = 1; aJ <= aPntCount; aJ++) |
| 654 | { |
| 655 | gp_Pnt aP1 = aPnts1(aJ - 1), aP2 = aPnts2(aJ - 1); |
| 656 | Sprintf(aName, "%s%d%s", "ext_", aJ, "_2"); |
| 657 | DrawTrSurf::Set(aName2, aP1); |
| 658 | di << aName << " "; |
| 659 | Sprintf(aName, "%s%d%s", "ext_", aJ, "_3"); |
| 660 | DrawTrSurf::Set(aName2, aP2); |
| 661 | di << aName << " "; |
| 662 | } |
| 663 | |
| 664 | // Output parameters. |
| 665 | for (Standard_Integer aJ = 0; aJ < 4; ++aJ) |
| 666 | { |
| 667 | for (Standard_Integer aPrmCount = aPrms[aJ].Size(), aK = 0; |
| 668 | aK < aPrmCount; ++aK) |
| 669 | { |
| 670 | Standard_Real aP = aPrms[aJ](aK); |
| 671 | Sprintf(aName, "%s%d%s%d", "prm_", aJ + 1, "_", aK + 1); |
| 672 | Draw::Set(aName2, aP); |
| 673 | di << aName << " "; |
| 674 | } |
| 675 | } |
| 676 | } |
| 677 | |
| 678 | return 0; |
| 679 | } |
| 680 | |
| 681 | //======================================================================= |
| 682 | //function : totalextcc |
| 683 | //purpose : |
| 684 | //======================================================================= |
| 685 | |
| 686 | static Standard_Integer totalextcc(Draw_Interpretor& di, Standard_Integer n, const char** a) |
| 687 | { |
| 688 | if ( n<3) return 1; |
| 689 | |
| 690 | Handle(Geom_Curve) GC1, GC2; |
| 691 | |
| 692 | |
| 693 | Standard_Real U1f,U1l,U2f,U2l; |
| 694 | |
| 695 | GC1 = DrawTrSurf::GetCurve(a[1]); |
| 696 | if ( GC1.IsNull()) { |
| 697 | return 1; |
| 698 | } |
| 699 | else { |
| 700 | U1f = GC1->FirstParameter(); |
| 701 | U1l = GC1->LastParameter(); |
| 702 | } |
| 703 | |
| 704 | GC2 = DrawTrSurf::GetCurve(a[2]); |
| 705 | if ( GC2.IsNull()) { |
| 706 | return 1; |
| 707 | } |
| 708 | else { |
| 709 | U2f = GC2->FirstParameter(); |
| 710 | U2l = GC2->LastParameter(); |
| 711 | } |
| 712 | |
| 713 | char name[100]; |
| 714 | GeomAPI_ExtremaCurveCurve Ex(GC1,GC2,U1f,U1l,U2f,U2l); |
| 715 | gp_Pnt P1,P2; |
| 716 | if(Ex.TotalNearestPoints(P1,P2)) { |
| 717 | if (P1.Distance(P2) < 1.e-16) { |
| 718 | di << "Extrema is point : " << P1.X() << " " << P1.Y() << " " << P1.Z() << "\n"; |
| 719 | } |
| 720 | else { |
| 721 | di << "Extrema is segment of line\n"; |
| 722 | Handle(Geom_Line) L = new Geom_Line(P1,gp_Vec(P1,P2)); |
| 723 | Handle(Geom_TrimmedCurve) CT = |
| 724 | new Geom_TrimmedCurve(L, 0., P1.Distance(P2)); |
| 725 | Sprintf(name,"%s%d","ext_",1); |
| 726 | char* temp = name; // portage WNT |
| 727 | DrawTrSurf::Set(temp, CT); |
| 728 | di << name << " "; |
| 729 | } |
| 730 | |
| 731 | Standard_Real u1, u2; |
| 732 | Ex.TotalLowerDistanceParameters(u1, u2); |
| 733 | |
| 734 | di << "Parameters on curves : " << u1 << " " << u2 << "\n"; |
| 735 | |
| 736 | } |
| 737 | else { |
| 738 | di << "Curves are infinite and parallel\n"; |
| 739 | } |
| 740 | |
| 741 | di << "Minimal distance : " << Ex.TotalLowerDistance() << "\n"; |
| 742 | |
| 743 | return 0; |
| 744 | |
| 745 | } |
| 746 | |
| 747 | |
| 748 | void GeometryTest::APICommands(Draw_Interpretor& theCommands) |
| 749 | { |
| 750 | static Standard_Boolean done = Standard_False; |
| 751 | if (done) return; |
| 752 | |
| 753 | done = Standard_True; |
| 754 | |
| 755 | theCommands.Add("proj", "proj curve/surf x y z [{extrema algo: g(grad)/t(tree)}|{u v}]\n" |
| 756 | "\t\tOptional parameters are relevant to surf only.\n" |
| 757 | "\t\tIf initial {u v} are given then local extrema is called",__FILE__, proj); |
| 758 | |
| 759 | theCommands.Add("appro", "appro result nbpoint [curve]",__FILE__, appro); |
| 760 | theCommands.Add("surfapp","surfapp result nbupoint nbvpoint x y z ....", |
| 761 | __FILE__, |
| 762 | surfapp); |
| 763 | |
| 764 | theCommands.Add("surfint", "surfint result surf nbupoint nbvpoint [uperiodic]", |
| 765 | __FILE__, |
| 766 | surfint); |
| 767 | |
| 768 | theCommands.Add("grilapp", |
| 769 | "grilapp result nbupoint nbvpoint X0 dX Y0 dY z11 z12 .. z1nu .... ", |
| 770 | __FILE__,grilapp); |
| 771 | |
| 772 | theCommands.Add("extrema", "extrema curve/surface curve/surface [extended_output = 0|1]",__FILE__,extrema); |
| 773 | theCommands.Add("totalextcc", "totalextcc curve curve",__FILE__,totalextcc); |
| 774 | } |