Method TransformVectorAtPoint

Common/Transforms/vtkAbstractTransform.cxx:111–121

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void vtkAbstractTransform::TransformVectorAtPoint(
  const double point[3], const double in[3], double out[3])
{
  this->Update();

  double matrix[3][3];
  double coord[3];

  this->InternalTransformDerivative(point, coord, matrix);
  vtkMath::Multiply3x3(matrix, in, out);
}

void vtkAbstractTransform::TransformVectorAtPoint(
  const float point[3], const float in[3], float out[3])