- const double // matrix 2x2
- T11 = t0.X()-t2.X(), T12 = t1.X()-t2.X(),
- T21 = t0.Y()-t2.Y(), T22 = t1.Y()-t2.Y();
- const double Tdet = T11*T22 - T12*T21; // matrix determinant
- if ( Abs( Tdet ) < std::numeric_limits<double>::min() )
- return false;
- // matrix inverse
- const double t11 = T22, t12 = -T12, t21 = -T21, t22 = T11;
- // vector
- const double r11 = p.X()-t2.X(), r12 = p.Y()-t2.Y();
- // barycentric coordinates: mutiply matrix by vector
- const double bc0 = (t11 * r11 + t12 * r12)/Tdet;
- const double bc1 = (t21 * r11 + t22 * r12)/Tdet;
+ double bc0, bc1;
+ SMESH_MeshAlgos::GetBarycentricCoords( p, t0, t1, t2, bc0, bc1 );