Method FillTube

Imaging/Sources/vtkImageCanvasSource2D.cxx:398–433

------------------------------------------------------------------------------ Fill a tube (thick line for initial 2D implementation).

//------------------------------------------------------------------------------
// Fill a tube (thick line for initial 2D implementation).
void vtkImageCanvasSource2D::FillTube(int a0, int a1, int b0, int b1, double radius)
{
  void* ptr;
  int z = this->DefaultZ;
  int* extent = this->ImageData->GetExtent();

  // Pre-multiply coords if needed
  if (this->Ratio[0] != 1.0)
  {
    a0 = int(double(a0) * this->Ratio[0]);
    b0 = int(double(b0) * this->Ratio[0]);
    radius = int(radius * this->Ratio[0]);
  }
  if (this->Ratio[1] != 1.0)
  {
    a1 = int(double(a1) * this->Ratio[1]);
    b1 = int(double(b1) * this->Ratio[1]);
  }
  if (this->Ratio[2] != 1.0)
  {
    z = int(double(z) * this->Ratio[2]);
  }

  z = (z < extent[4]) ? extent[4] : z;
  z = (z > extent[5]) ? extent[5] : z;

  ptr = this->ImageData->GetScalarPointer(extent[0], extent[2], z);
  switch (this->ImageData->GetScalarType())
  {
    vtkTemplateMacro(vtkImageCanvasSource2DFillTube(
      this->ImageData, this->DrawColor, static_cast<VTK_TT*>(ptr), a0, a1, b0, b1, radius));
    default:
      vtkErrorMacro(<< "FillTube: Cannot handle ScalarType.");
  }
  this->Modified();
}

//------------------------------------------------------------------------------
// Fill a triangle (rasterize)