Method ComputeNormal

Common/DataModel/vtkTriangle.cxx:788–798

------------------------------------------------------------------------------ Compute the triangle normal from a points list, and a list of point ids that index into the points list.

// Compute the triangle normal from a points list, and a list of point ids
// that index into the points list.
void vtkTriangle::ComputeNormal(
  vtkPoints* p, int vtkNotUsed(numPts), const vtkIdType* pts, double n[3])
{
  double v1[3], v2[3], v3[3];

  p->GetPoint(pts[0], v1);
  p->GetPoint(pts[1], v2);
  p->GetPoint(pts[2], v3);

  vtkTriangle::ComputeNormal(v1, v2, v3, n);
}

//------------------------------------------------------------------------------
// Compute the circumcenter (center[3]) and radius squared (method