//C++ TO C# CONVERTER WARNING: 'const' methods are not available in C#:
//ORIGINAL LINE: virtual double FuncGrad(const Vector & x, Vector & grad) const
public override double FuncGrad(Vector x, Vector grad)
{
Vec3d n1 = new Vec3d();
Vec3d n2 = new Vec3d();
Vec3d v1 = new Vec3d();
Vec3d vgrad = new Vec3d();
Point3d pp1 = new Point3d();
double badness;
VectorMem <3> freegrad;
CalcNewPoint(x, ref pp1);
badness = pf.PointFunctionValueGrad(pp1, ref freegrad);
vgrad.X() = freegrad.Get(1);
vgrad.Y() = freegrad.Get(2);
vgrad.Z() = freegrad.Get(3);
Vec <3> hn1, hn2;
surf1.GetNormalVector(pp1, hn1);
surf2.GetNormalVector(pp1, hn2);
n1 = hn1;
n2 = hn2;
v1 = netgen.GlobalMembers.Cross(n1, n2);
v1 /= v1.Length();
grad.Elem(1) = (vgrad * v1) * (t1 * v1);
return(badness);
}
//C++ TO C# CONVERTER WARNING: 'const' methods are not available in C#:
//ORIGINAL LINE: virtual double FuncGrad(const Vector & x, Vector & grad) const
public override double FuncGrad(Vector x, Vector grad)
{
Vec3d n = new Vec3d();
Vec3d vgrad = new Vec3d();
Point3d pp1 = new Point3d();
VectorMem <3> freegrad;
CalcNewPoint(x, ref pp1);
double badness = pf.PointFunctionValueGrad(pp1, ref freegrad);
vgrad.X() = freegrad.Get(1);
vgrad.Y() = freegrad.Get(2);
vgrad.Z() = freegrad.Get(3);
Vec <3> hn;
surf.GetNormalVector(pp1, hn);
n = hn;
vgrad -= (vgrad * n) * n;
grad.Elem(1) = vgrad * t1;
grad.Elem(2) = vgrad * t2;
return(badness);
}