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1 | // Copyright (c) 2014-2014 OPEN CASCADE SAS |
| 2 | // |
| 3 | // This file is part of Open CASCADE Technology software library. |
| 4 | // |
| 5 | // This library is free software; you can redistribute it and/or modify it under |
| 6 | // the terms of the GNU Lesser General Public License version 2.1 as published |
| 7 | // by the Free Software Foundation, with special exception defined in the file |
| 8 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
| 9 | // distribution for complete text of the license and disclaimer of any warranty. |
| 10 | // |
| 11 | // Alternatively, this file may be used under the terms of Open CASCADE |
| 12 | // commercial license or contractual agreement. |
| 13 | |
| 14 | #include <GCPnts_DistFunction.hxx> |
| 15 | #include <gp_Pnt.hxx> |
| 16 | |
| 17 | //======================================================================= |
| 18 | //function : MaxCurvLinDist |
| 19 | //purpose : |
| 20 | //======================================================================= |
| 21 | GCPnts_DistFunction::GCPnts_DistFunction(const Adaptor3d_Curve& theCurve, |
| 22 | const Standard_Real U1, const Standard_Real U2) |
| 23 | : myCurve(theCurve), |
| 24 | myU1(U1), myU2(U2) |
| 25 | { |
| 26 | gp_Pnt P1 = theCurve.Value(U1), P2 = theCurve.Value(U2); |
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27 | if (P1.SquareDistance(P2) > gp::Resolution()) |
| 28 | { |
| 29 | myLin = gp_Lin(P1, P2.XYZ() - P1.XYZ()); |
| 30 | } |
| 31 | else |
| 32 | { |
| 33 | //For #28812 |
| 34 | theCurve.D0(U1 + .01*(U2-U1), P2); |
| 35 | myLin = gp_Lin(P1, P2.XYZ() - P1.XYZ()); |
| 36 | } |
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37 | } |
| 38 | // |
| 39 | //======================================================================= |
| 40 | //function : Value |
| 41 | //purpose : |
| 42 | //======================================================================= |
| 43 | Standard_Boolean GCPnts_DistFunction::Value (const Standard_Real X, |
| 44 | Standard_Real& F) |
| 45 | { |
| 46 | if (X < myU1 || X > myU2) |
| 47 | return Standard_False; |
| 48 | // |
| 49 | F = -myLin.SquareDistance(myCurve.Value(X)); |
| 50 | return Standard_True; |
| 51 | } |
| 52 | |
| 53 | //======================================================================= |
| 54 | //function : MaxCurvLinDistMV |
| 55 | //purpose : |
| 56 | //======================================================================= |
| 57 | |
| 58 | GCPnts_DistFunctionMV::GCPnts_DistFunctionMV(GCPnts_DistFunction& theCurvLinDist) |
| 59 | : myMaxCurvLinDist(theCurvLinDist) |
| 60 | { |
| 61 | } |
| 62 | |
| 63 | //======================================================================= |
| 64 | //function : Value |
| 65 | //purpose : |
| 66 | //======================================================================= |
| 67 | Standard_Boolean GCPnts_DistFunctionMV::Value (const math_Vector& X, |
| 68 | Standard_Real& F) |
| 69 | { |
| 70 | Standard_Boolean Ok = myMaxCurvLinDist.Value(X(1), F); |
| 71 | return Ok; |
| 72 | } |
| 73 | |
| 74 | //======================================================================= |
| 75 | //function : NbVariables |
| 76 | //purpose : |
| 77 | //======================================================================= |
| 78 | Standard_Integer GCPnts_DistFunctionMV::NbVariables() const |
| 79 | { |
| 80 | return 1; |
| 81 | } |
| 82 | |
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