Method Scale

Interaction/Widgets/vtkTensorRepresentation.cxx:809–834

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//------------------------------------------------------------------------------
void vtkTensorRepresentation::Scale(
  const double* vtkNotUsed(p1), const double* vtkNotUsed(p2), int vtkNotUsed(X), int Y)
{
  double* pts = static_cast<vtkDoubleArray*>(this->Points->GetData())->GetPointer(0);
  double* center = static_cast<vtkDoubleArray*>(this->Points->GetData())->GetPointer(3 * 14);
  double sf;

  if (Y > this->LastEventPosition[1])
  {
    sf = 1.03;
  }
  else
  {
    sf = 0.97;
  }

  // Move the corners
  for (int i = 0; i < 8; i++, pts += 3)
  {
    pts[0] = sf * (pts[0] - center[0]) + center[0];
    pts[1] = sf * (pts[1] - center[1]) + center[1];
    pts[2] = sf * (pts[2] - center[2]) + center[2];
  }
  this->PositionHandles();
  this->UpdateTensorFromWidget();
}

//------------------------------------------------------------------------------
void vtkTensorRepresentation::ComputeNormals()