| 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_Curve.hxx> |
| 18 | #include <Geom_Surface.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 <GeomAPI_ExtremaCurveCurve.hxx> |
| 27 | #include <GeomAPI_ExtremaCurveSurface.hxx> |
| 28 | #include <GeomAPI_ExtremaSurfaceSurface.hxx> |
| 29 | #include <GeomAPI_PointsToBSpline.hxx> |
| 30 | #include <GeomAPI_PointsToBSplineSurface.hxx> |
| 31 | #include <Geom_Line.hxx> |
| 32 | #include <Geom_TrimmedCurve.hxx> |
| 33 | #include <Draw_Segment3D.hxx> |
| 34 | #include <Draw_Marker3D.hxx> |
| 35 | #include <Draw_Color.hxx> |
| 36 | #include <Draw_MarkerShape.hxx> |
| 37 | #include <TColgp_Array1OfPnt.hxx> |
| 38 | #include <TColgp_Array2OfPnt.hxx> |
| 39 | #include <TColStd_Array2OfReal.hxx> |
| 40 | #include <Precision.hxx> |
| 41 | #include <stdio.h> |
| 42 | #ifdef WNT |
| 43 | Standard_IMPORT Draw_Viewer dout; |
| 44 | #endif |
| 45 | |
| 46 | //======================================================================= |
| 47 | //function : proj |
| 48 | //purpose : |
| 49 | //======================================================================= |
| 50 | |
| 51 | static Standard_Integer proj (Draw_Interpretor& di, Standard_Integer n, const char** a) |
| 52 | { |
| 53 | if ( n < 5) |
| 54 | { |
| 55 | cout << " Use proj curve/surf x y z [extrema algo: g(grad)/t(tree)]" << endl; |
| 56 | return 1; |
| 57 | } |
| 58 | |
| 59 | gp_Pnt P(Draw::Atof(a[2]),Draw::Atof(a[3]),Draw::Atof(a[4])); |
| 60 | |
| 61 | char name[100]; |
| 62 | |
| 63 | Handle(Geom_Curve) GC = DrawTrSurf::GetCurve(a[1]); |
| 64 | Handle(Geom_Surface) GS; |
| 65 | Extrema_ExtAlgo aProjAlgo = Extrema_ExtAlgo_Grad; |
| 66 | |
| 67 | if (n == 6 && a[5][0] == 't') |
| 68 | aProjAlgo = Extrema_ExtAlgo_Tree; |
| 69 | |
| 70 | if (GC.IsNull()) |
| 71 | { |
| 72 | GS = DrawTrSurf::GetSurface(a[1]); |
| 73 | |
| 74 | if (GS.IsNull()) |
| 75 | return 1; |
| 76 | |
| 77 | Standard_Real U1, U2, V1, V2; |
| 78 | GS->Bounds(U1,U2,V1,V2); |
| 79 | |
| 80 | GeomAPI_ProjectPointOnSurf proj(P,GS,U1,U2,V1,V2,aProjAlgo); |
| 81 | |
| 82 | Standard_Real UU,VV; |
| 83 | for ( Standard_Integer i = 1; i <= proj.NbPoints(); i++) |
| 84 | { |
| 85 | gp_Pnt P1 = proj.Point(i); |
| 86 | if ( P.Distance(P1) > Precision::Confusion()) |
| 87 | { |
| 88 | Handle(Geom_Line) L = new Geom_Line(P,gp_Vec(P,P1)); |
| 89 | Handle(Geom_TrimmedCurve) CT = |
| 90 | new Geom_TrimmedCurve(L, 0., P.Distance(P1)); |
| 91 | Sprintf(name,"%s%d","ext_",i); |
| 92 | char* temp = name; // portage WNT |
| 93 | DrawTrSurf::Set(temp, CT); |
| 94 | di << name << " "; |
| 95 | } |
| 96 | else |
| 97 | { |
| 98 | Sprintf(name,"%s%d","ext_",i); |
| 99 | di << name << " "; |
| 100 | char* temp = name; // portage WNT |
| 101 | DrawTrSurf::Set(temp, P1); |
| 102 | proj.Parameters(i,UU,VV); |
| 103 | di << " Le point est sur la surface." << "\n"; |
| 104 | di << " Ses parametres sont: UU = " << UU << "\n"; |
| 105 | di << " VV = " << VV << "\n"; |
| 106 | } |
| 107 | } |
| 108 | } |
| 109 | else |
| 110 | { |
| 111 | GeomAPI_ProjectPointOnCurve proj(P,GC,GC->FirstParameter(), |
| 112 | GC->LastParameter()); |
| 113 | |
| 114 | if(proj.NbPoints() == 0) |
| 115 | { |
| 116 | cout << "No project point was found." << endl; |
| 117 | return 0; |
| 118 | } |
| 119 | |
| 120 | for ( Standard_Integer i = 1; i <= proj.NbPoints(); i++) |
| 121 | { |
| 122 | gp_Pnt P1 = proj.Point(i); |
| 123 | Standard_Real UU = proj.Parameter(i); |
| 124 | di << " parameter " << i << " = " << UU << "\n"; |
| 125 | if ( P.Distance(P1) > Precision::Confusion()) |
| 126 | { |
| 127 | Handle(Geom_Line) L = new Geom_Line(P,gp_Vec(P,P1)); |
| 128 | Handle(Geom_TrimmedCurve) CT = |
| 129 | new Geom_TrimmedCurve(L, 0., P.Distance(P1)); |
| 130 | Sprintf(name,"%s%d","ext_",i); |
| 131 | char* temp = name; // portage WNT |
| 132 | DrawTrSurf::Set(temp, CT); |
| 133 | di << name << " "; |
| 134 | } |
| 135 | else |
| 136 | { |
| 137 | Sprintf(name,"%s%d","ext_",i); |
| 138 | char* temp = name; // portage WNT |
| 139 | DrawTrSurf::Set(temp, P1); |
| 140 | di << name << " "; |
| 141 | UU = proj.Parameter(i); |
| 142 | di << " Le point est sur la courbe." << "\n"; |
| 143 | di << " Son parametre est U = " << UU << "\n"; |
| 144 | } |
| 145 | } |
| 146 | } |
| 147 | |
| 148 | return 0; |
| 149 | } |
| 150 | |
| 151 | //======================================================================= |
| 152 | //function : appro |
| 153 | //purpose : |
| 154 | //======================================================================= |
| 155 | |
| 156 | static Standard_Integer appro(Draw_Interpretor& di, Standard_Integer n, const char** a) |
| 157 | { |
| 158 | if ( n<3) return 1; |
| 159 | |
| 160 | Handle(Geom_Curve) GC; |
| 161 | Standard_Integer Nb = Draw::Atoi(a[2]); |
| 162 | |
| 163 | TColgp_Array1OfPnt Points(1, Nb); |
| 164 | |
| 165 | Handle(Draw_Marker3D) mark; |
| 166 | |
| 167 | if ( n == 4) { |
| 168 | GC = DrawTrSurf::GetCurve(a[3]); |
| 169 | if ( GC.IsNull()) |
| 170 | return 1; |
| 171 | |
| 172 | Standard_Real U, U1, U2; |
| 173 | U1 = GC->FirstParameter(); |
| 174 | U2 = GC->LastParameter(); |
| 175 | Standard_Real Delta = ( U2 - U1) / (Nb-1); |
| 176 | for ( Standard_Integer i = 1 ; i <= Nb; i++) { |
| 177 | U = U1 + (i-1) * Delta; |
| 178 | Points(i) = GC->Value(U); |
| 179 | mark = new Draw_Marker3D( Points(i), Draw_X, Draw_vert); |
| 180 | dout << mark; |
| 181 | } |
| 182 | } |
| 183 | else { |
| 184 | Standard_Integer id,XX,YY,b; |
| 185 | dout.Select(id,XX,YY,b); |
| 186 | Standard_Real zoom = dout.Zoom(id); |
| 187 | |
| 188 | Points(1) = gp_Pnt( ((Standard_Real)XX)/zoom, |
| 189 | ((Standard_Real)YY)/zoom, |
| 190 | 0.); |
| 191 | |
| 192 | mark = new Draw_Marker3D( Points(1), Draw_X, Draw_vert); |
| 193 | |
| 194 | dout << mark; |
| 195 | |
| 196 | for (Standard_Integer i = 2; i<=Nb; i++) { |
| 197 | dout.Select(id,XX,YY,b); |
| 198 | Points(i) = gp_Pnt( ((Standard_Real)XX)/zoom, |
| 199 | ((Standard_Real)YY)/zoom, |
| 200 | 0.); |
| 201 | mark = new Draw_Marker3D( Points(i), Draw_X, Draw_vert); |
| 202 | dout << mark; |
| 203 | } |
| 204 | } |
| 205 | dout.Flush(); |
| 206 | Standard_Integer Dmin = 3; |
| 207 | Standard_Integer Dmax = 8; |
| 208 | Standard_Real Tol3d = 1.e-3; |
| 209 | |
| 210 | Handle(Geom_BSplineCurve) TheCurve; |
| 211 | GeomAPI_PointsToBSpline aPointToBSpline(Points,Dmin,Dmax,GeomAbs_C2,Tol3d); |
| 212 | TheCurve = aPointToBSpline.Curve(); |
| 213 | |
| 214 | |
| 215 | DrawTrSurf::Set(a[1], TheCurve); |
| 216 | di << a[1]; |
| 217 | |
| 218 | return 0; |
| 219 | |
| 220 | } |
| 221 | |
| 222 | |
| 223 | //======================================================================= |
| 224 | //function : grilapp |
| 225 | //purpose : |
| 226 | //======================================================================= |
| 227 | |
| 228 | static Standard_Integer grilapp(Draw_Interpretor& di, Standard_Integer n, const char** a) |
| 229 | { |
| 230 | if ( n < 12) return 1; |
| 231 | |
| 232 | Standard_Integer i,j; |
| 233 | Standard_Integer Nu = Draw::Atoi(a[2]); |
| 234 | Standard_Integer Nv = Draw::Atoi(a[3]); |
| 235 | TColStd_Array2OfReal ZPoints (1, Nu, 1, Nv); |
| 236 | |
| 237 | Standard_Real X0 = Draw::Atof(a[4]); |
| 238 | Standard_Real dX = Draw::Atof(a[5]); |
| 239 | Standard_Real Y0 = Draw::Atof(a[6]); |
| 240 | Standard_Real dY = Draw::Atof(a[7]); |
| 241 | |
| 242 | Standard_Integer Count = 8; |
| 243 | for ( j = 1; j <= Nv; j++) { |
| 244 | for ( i = 1; i <= Nu; i++) { |
| 245 | if ( Count > n) return 1; |
| 246 | ZPoints(i,j) = Draw::Atof(a[Count]); |
| 247 | Count++; |
| 248 | } |
| 249 | } |
| 250 | |
| 251 | Handle(Geom_BSplineSurface) S |
| 252 | = GeomAPI_PointsToBSplineSurface(ZPoints,X0,dX,Y0,dY); |
| 253 | DrawTrSurf::Set(a[1],S); |
| 254 | |
| 255 | di << a[1]; |
| 256 | |
| 257 | return 0; |
| 258 | } |
| 259 | |
| 260 | //======================================================================= |
| 261 | //function : surfapp |
| 262 | //purpose : |
| 263 | //======================================================================= |
| 264 | |
| 265 | static Standard_Integer surfapp(Draw_Interpretor& di, Standard_Integer n, const char** a) |
| 266 | { |
| 267 | if ( n < 5 ) return 1; |
| 268 | |
| 269 | Standard_Integer i,j; |
| 270 | Standard_Integer Nu = Draw::Atoi(a[2]); |
| 271 | Standard_Integer Nv = Draw::Atoi(a[3]); |
| 272 | TColgp_Array2OfPnt Points (1, Nu, 1, Nv); |
| 273 | |
| 274 | if ( n == 5) { |
| 275 | Handle(Geom_Surface) Surf = DrawTrSurf::GetSurface(a[4]); |
| 276 | if ( Surf.IsNull()) return 1; |
| 277 | |
| 278 | Standard_Real U, V, U1, V1, U2, V2; |
| 279 | Surf->Bounds( U1, U2, V1, V2); |
| 280 | for ( j = 1; j <= Nv; j++) { |
| 281 | V = V1 + (j-1) * (V2-V1) / (Nv-1); |
| 282 | for ( i = 1; i <= Nu; i++) { |
| 283 | U = U1 + (i-1) * (U2-U1) / (Nu-1); |
| 284 | Points(i,j) = Surf->Value(U,V); |
| 285 | } |
| 286 | } |
| 287 | } |
| 288 | else if ( n >= 16) { |
| 289 | Standard_Integer Count = 4; |
| 290 | for ( j = 1; j <= Nv; j++) { |
| 291 | for ( i = 1; i <= Nu; i++) { |
| 292 | if ( Count > n) return 1; |
| 293 | Points(i,j) = gp_Pnt(Draw::Atof(a[Count]),Draw::Atof(a[Count+1]),Draw::Atof(a[Count+2])); |
| 294 | Count += 3; |
| 295 | } |
| 296 | } |
| 297 | } |
| 298 | char name[100]; |
| 299 | Standard_Integer Count = 1; |
| 300 | for ( j = 1; j <= Nv; j++) { |
| 301 | for ( i = 1; i <= Nu; i++) { |
| 302 | Sprintf(name,"point_%d",Count++); |
| 303 | char* temp = name; // portage WNT |
| 304 | DrawTrSurf::Set(temp,Points(i,j)); |
| 305 | } |
| 306 | } |
| 307 | |
| 308 | Handle(Geom_BSplineSurface) S = GeomAPI_PointsToBSplineSurface(Points); |
| 309 | DrawTrSurf::Set(a[1],S); |
| 310 | di << a[1]; |
| 311 | |
| 312 | return 0; |
| 313 | } |
| 314 | |
| 315 | |
| 316 | //======================================================================= |
| 317 | //function : extrema |
| 318 | //purpose : |
| 319 | //======================================================================= |
| 320 | |
| 321 | static Standard_Integer extrema(Draw_Interpretor& di, Standard_Integer n, const char** a) |
| 322 | { |
| 323 | if (n < 3) |
| 324 | { |
| 325 | return 1; |
| 326 | } |
| 327 | |
| 328 | Handle(Geom_Curve) GC1, GC2; |
| 329 | Handle(Geom_Surface) GS1, GS2; |
| 330 | |
| 331 | Standard_Boolean C1 = Standard_False; |
| 332 | Standard_Boolean C2 = Standard_False; |
| 333 | Standard_Boolean S1 = Standard_False; |
| 334 | Standard_Boolean S2 = Standard_False; |
| 335 | |
| 336 | Standard_Real U1f, U1l, U2f, U2l, V1f = 0., V1l = 0., V2f = 0., V2l = 0.; |
| 337 | |
| 338 | GC1 = DrawTrSurf::GetCurve(a[1]); |
| 339 | if ( GC1.IsNull()) { |
| 340 | GS1 = DrawTrSurf::GetSurface(a[1]); |
| 341 | if ( GS1.IsNull()) |
| 342 | return 1; |
| 343 | S1 = Standard_True; |
| 344 | GS1->Bounds(U1f,U1l,V1f,V1l); |
| 345 | } |
| 346 | else { |
| 347 | C1 = Standard_True; |
| 348 | U1f = GC1->FirstParameter(); |
| 349 | U1l = GC1->LastParameter(); |
| 350 | } |
| 351 | |
| 352 | GC2 = DrawTrSurf::GetCurve(a[2]); |
| 353 | if ( GC2.IsNull()) { |
| 354 | GS2 = DrawTrSurf::GetSurface(a[2]); |
| 355 | if ( GS2.IsNull()) |
| 356 | return 1; |
| 357 | S2 = Standard_True; |
| 358 | GS2->Bounds(U2f,U2l,V2f,V2l); |
| 359 | } |
| 360 | else { |
| 361 | C2 = Standard_True; |
| 362 | U2f = GC2->FirstParameter(); |
| 363 | U2l = GC2->LastParameter(); |
| 364 | } |
| 365 | |
| 366 | NCollection_Vector<gp_Pnt> aPnts1, aPnts2; |
| 367 | NCollection_Vector<Standard_Real> aPrms[4]; |
| 368 | if (C1 && C2) |
| 369 | { |
| 370 | GeomAPI_ExtremaCurveCurve Ex(GC1, GC2, U1f, U1l, U2f, U2l); |
| 371 | if (!Ex.Extrema().IsParallel()) |
| 372 | { |
| 373 | for (Standard_Integer aJ = 1; aJ <= Ex.NbExtrema(); ++aJ) |
| 374 | { |
| 375 | gp_Pnt aP1, aP2; |
| 376 | Ex.Points(aJ, aP1, aP2); |
| 377 | aPnts1.Append(aP1); |
| 378 | aPnts2.Append(aP2); |
| 379 | |
| 380 | Standard_Real aU1, aU2; |
| 381 | Ex.Parameters(aJ, aU1, aU2); |
| 382 | aPrms[0].Append(aU1); |
| 383 | aPrms[2].Append(aU2); |
| 384 | } |
| 385 | } |
| 386 | else |
| 387 | { |
| 388 | di << "Infinite number of extremas, distance = " << Ex.LowerDistance() << "\n"; |
| 389 | } |
| 390 | } |
| 391 | else if (C1 && S2) |
| 392 | { |
| 393 | GeomAPI_ExtremaCurveSurface Ex(GC1, GS2, U1f, U1l, U2f, U2l, V2f, V2l); |
| 394 | for (Standard_Integer aJ = 1; aJ <= Ex.NbExtrema(); ++aJ) |
| 395 | { |
| 396 | gp_Pnt aP1, aP2; |
| 397 | Ex.Points(aJ, aP1, aP2); |
| 398 | aPnts1.Append(aP1); |
| 399 | aPnts2.Append(aP2); |
| 400 | |
| 401 | Standard_Real aU1, aU2, aV2; |
| 402 | Ex.Parameters(aJ, aU1, aU2, aV2); |
| 403 | aPrms[0].Append(aU1); |
| 404 | aPrms[2].Append(aU2); |
| 405 | aPrms[3].Append(aV2); |
| 406 | } |
| 407 | } |
| 408 | else if (S1 && C2) |
| 409 | { |
| 410 | GeomAPI_ExtremaCurveSurface Ex(GC2, GS1, U2f, U2l, U1f, U1l, V1f, V1l); |
| 411 | for (Standard_Integer aJ = 1; aJ <= Ex.NbExtrema(); ++aJ) |
| 412 | { |
| 413 | gp_Pnt aP2, aP1; |
| 414 | Ex.Points(aJ, aP2, aP1); |
| 415 | aPnts1.Append(aP1); |
| 416 | aPnts2.Append(aP2); |
| 417 | |
| 418 | Standard_Real aU1, aV1, aU2; |
| 419 | Ex.Parameters(aJ, aU2, aU1, aV1); |
| 420 | aPrms[0].Append(aU1); |
| 421 | aPrms[1].Append(aV1); |
| 422 | aPrms[2].Append(aU2); |
| 423 | } |
| 424 | } |
| 425 | else if (S1 && S2) |
| 426 | { |
| 427 | GeomAPI_ExtremaSurfaceSurface Ex( |
| 428 | GS1, GS2, U1f, U1l, V1f, V1l, U2f, U2l, V2f, V2l); |
| 429 | for (Standard_Integer aJ = 1; aJ <= Ex.NbExtrema(); ++aJ) |
| 430 | { |
| 431 | gp_Pnt aP1, aP2; |
| 432 | Ex.Points(aJ, aP1, aP2); |
| 433 | aPnts1.Append(aP1); |
| 434 | aPnts2.Append(aP2); |
| 435 | |
| 436 | Standard_Real aU1, aV1, aU2, aV2; |
| 437 | Ex.Parameters(aJ, aU1, aV1, aU2, aV2); |
| 438 | aPrms[0].Append(aU1); |
| 439 | aPrms[1].Append(aV1); |
| 440 | aPrms[2].Append(aU2); |
| 441 | aPrms[3].Append(aV2); |
| 442 | } |
| 443 | } |
| 444 | |
| 445 | char aName[100]; |
| 446 | char* aName2 = aName; // portage WNT |
| 447 | |
| 448 | // Output points. |
| 449 | const Standard_Integer aPntCount = aPnts1.Size(); |
| 450 | if (aPntCount == 0) |
| 451 | { |
| 452 | di << "No solutions!\n"; |
| 453 | } |
| 454 | for (Standard_Integer aJ = 1; aJ <= aPntCount; aJ++) |
| 455 | { |
| 456 | gp_Pnt aP1 = aPnts1(aJ - 1), aP2 = aPnts2(aJ - 1); |
| 457 | |
| 458 | if (aP1.Distance(aP2) < 1.e-16) |
| 459 | { |
| 460 | di << "Extrema " << aJ << " is point : " << |
| 461 | aP1.X() << " " << aP1.Y() << " " << aP1.Z() << "\n"; |
| 462 | continue; |
| 463 | } |
| 464 | |
| 465 | Handle(Geom_Line) aL = new Geom_Line(aP1, gp_Vec(aP1, aP2)); |
| 466 | Handle(Geom_TrimmedCurve) aCT = |
| 467 | new Geom_TrimmedCurve(aL, 0., aP1.Distance(aP2)); |
| 468 | Sprintf(aName, "%s%d", "ext_", aJ); |
| 469 | DrawTrSurf::Set(aName2, aCT); |
| 470 | di << aName << " "; |
| 471 | } |
| 472 | |
| 473 | if (n >= 4) |
| 474 | { |
| 475 | // Output points. |
| 476 | for (Standard_Integer aJ = 1; aJ <= aPntCount; aJ++) |
| 477 | { |
| 478 | gp_Pnt aP1 = aPnts1(aJ - 1), aP2 = aPnts2(aJ - 1); |
| 479 | Sprintf(aName, "%s%d%s", "ext_", aJ, "_2"); |
| 480 | DrawTrSurf::Set(aName2, aP1); |
| 481 | di << aName << " "; |
| 482 | Sprintf(aName, "%s%d%s", "ext_", aJ, "_3"); |
| 483 | DrawTrSurf::Set(aName2, aP2); |
| 484 | di << aName << " "; |
| 485 | } |
| 486 | |
| 487 | // Output parameters. |
| 488 | for (Standard_Integer aJ = 0; aJ < 4; ++aJ) |
| 489 | { |
| 490 | for (Standard_Integer aPrmCount = aPrms[aJ].Size(), aK = 0; |
| 491 | aK < aPrmCount; ++aK) |
| 492 | { |
| 493 | Standard_Real aP = aPrms[aJ](aK); |
| 494 | Sprintf(aName, "%s%d%s%d", "prm_", aJ + 1, "_", aK + 1); |
| 495 | Draw::Set(aName2, aP); |
| 496 | di << aName << " "; |
| 497 | } |
| 498 | } |
| 499 | } |
| 500 | |
| 501 | return 0; |
| 502 | } |
| 503 | |
| 504 | //======================================================================= |
| 505 | //function : totalextcc |
| 506 | //purpose : |
| 507 | //======================================================================= |
| 508 | |
| 509 | static Standard_Integer totalextcc(Draw_Interpretor& di, Standard_Integer n, const char** a) |
| 510 | { |
| 511 | if ( n<3) return 1; |
| 512 | |
| 513 | Handle(Geom_Curve) GC1, GC2; |
| 514 | |
| 515 | |
| 516 | Standard_Real U1f,U1l,U2f,U2l; |
| 517 | |
| 518 | GC1 = DrawTrSurf::GetCurve(a[1]); |
| 519 | if ( GC1.IsNull()) { |
| 520 | return 1; |
| 521 | } |
| 522 | else { |
| 523 | U1f = GC1->FirstParameter(); |
| 524 | U1l = GC1->LastParameter(); |
| 525 | } |
| 526 | |
| 527 | GC2 = DrawTrSurf::GetCurve(a[2]); |
| 528 | if ( GC2.IsNull()) { |
| 529 | return 1; |
| 530 | } |
| 531 | else { |
| 532 | U2f = GC2->FirstParameter(); |
| 533 | U2l = GC2->LastParameter(); |
| 534 | } |
| 535 | |
| 536 | char name[100]; |
| 537 | GeomAPI_ExtremaCurveCurve Ex(GC1,GC2,U1f,U1l,U2f,U2l); |
| 538 | gp_Pnt P1,P2; |
| 539 | if(Ex.TotalNearestPoints(P1,P2)) { |
| 540 | if (P1.Distance(P2) < 1.e-16) { |
| 541 | di << "Extrema is point : " << P1.X() << " " << P1.Y() << " " << P1.Z() << "\n"; |
| 542 | } |
| 543 | else { |
| 544 | di << "Extrema is segment of line" << "\n"; |
| 545 | Handle(Geom_Line) L = new Geom_Line(P1,gp_Vec(P1,P2)); |
| 546 | Handle(Geom_TrimmedCurve) CT = |
| 547 | new Geom_TrimmedCurve(L, 0., P1.Distance(P2)); |
| 548 | Sprintf(name,"%s%d","ext_",1); |
| 549 | char* temp = name; // portage WNT |
| 550 | DrawTrSurf::Set(temp, CT); |
| 551 | di << name << " "; |
| 552 | } |
| 553 | |
| 554 | Standard_Real u1, u2; |
| 555 | Ex.TotalLowerDistanceParameters(u1, u2); |
| 556 | |
| 557 | di << "Parameters on curves : " << u1 << " " << u2 << "\n"; |
| 558 | |
| 559 | } |
| 560 | else { |
| 561 | di << "Curves are infinite and parallel" << "\n"; |
| 562 | } |
| 563 | |
| 564 | di << "Minimal distance : " << Ex.TotalLowerDistance() << "\n"; |
| 565 | |
| 566 | return 0; |
| 567 | |
| 568 | } |
| 569 | |
| 570 | |
| 571 | void GeometryTest::APICommands(Draw_Interpretor& theCommands) |
| 572 | { |
| 573 | static Standard_Boolean done = Standard_False; |
| 574 | if (done) return; |
| 575 | |
| 576 | done = Standard_True; |
| 577 | |
| 578 | theCommands.Add("proj", "proj curve/surf x y z [extrema algo: g(grad)/t(tree)]",__FILE__, proj); |
| 579 | |
| 580 | theCommands.Add("appro", "appro result nbpoint [curve]",__FILE__, appro); |
| 581 | theCommands.Add("surfapp","surfapp result nbupoint nbvpoint x y z ....", |
| 582 | __FILE__, |
| 583 | surfapp); |
| 584 | theCommands.Add("grilapp", |
| 585 | "grilapp result nbupoint nbvpoint X0 dX Y0 dY z11 z12 .. z1nu .... ", |
| 586 | __FILE__,grilapp); |
| 587 | |
| 588 | theCommands.Add("extrema", "extrema curve/surface curve/surface [extended_output = 0|1]",__FILE__,extrema); |
| 589 | theCommands.Add("totalextcc", "totalextcc curve curve",__FILE__,totalextcc); |
| 590 | } |