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// File: IntCurveSurface_QuadricCurveFunc.gxx
// Created: Thu Aug 19 10:55:26 1993
// Author: Laurent BUCHARD
// <lbr@nonox>
//-Copyright: Matra Datavision 1993
#include <gp_Vec.hxx>
//================================================================================
IntCurveSurface_QuadricCurveFunc::IntCurveSurface_QuadricCurveFunc(const TheQuadric& Q,
const TheCurve& C)
: myQuadric(Q), myCurve(C)
{
}
//================================================================================
Standard_Boolean IntCurveSurface_QuadricCurveFunc::Value(const Standard_Real Param,
Standard_Real& F) {
F = myQuadric.Distance(TheCurveTool::Value(myCurve,Param));
return(Standard_True);
}
Standard_Boolean IntCurveSurface_QuadricCurveFunc::Derivative(const Standard_Real Param,
Standard_Real& D) {
gp_Pnt P;
gp_Vec T;
TheCurveTool::D1(myCurve,Param,P,T);
D = T.Dot(myQuadric.Gradient(P));
return(Standard_True);
}
Standard_Boolean IntCurveSurface_QuadricCurveFunc::Values(const Standard_Real Param,
Standard_Real& F,
Standard_Real& D) {
gp_Pnt P;
gp_Vec T,Grad;
TheCurveTool::D1(myCurve,Param,P,T);
myQuadric.ValAndGrad(P,F,Grad);
D = T.Dot(Grad);
return(Standard_True);
}
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