Method ComputeFrame

Rendering/Annotation/vtkScalarBarActor.cxx:881–909

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//------------------------------------------------------------------------------
void vtkScalarBarActor::ComputeFrame()
{
  // get the viewport size in display coordinates
  int* p0;
  int* p1;
  int size[2];
  p0 = this->PositionCoordinate->GetComputedViewportValue(this->P->Viewport);
  p1 = this->Position2Coordinate->GetComputedViewportValue(this->P->Viewport);
  for (int i = 0; i < 2; ++i)
  {
    // this->P->Frame.Posn[i] = p0[i];
    this->P->Frame.Posn[i] = 0; // Translate the frame's coordinate system to p0
    size[i] = p1[i] - p0[i];
  }

  // Check if we have bounds on the maximum size
  size[0] = size[0] > this->MaximumWidthInPixels ? this->MaximumWidthInPixels : size[0];
  size[1] = size[1] > this->MaximumHeightInPixels ? this->MaximumHeightInPixels : size[1];

  for (int i = 0; i < 2; ++i)
  {
    this->P->Frame.Size[i] = size[this->P->TL[i]];
  }

  this->LastOrigin[0] = p0[0];
  this->LastOrigin[1] = p0[1];
  this->LastSize[0] = size[0];
  this->LastSize[1] = size[1];
}

//------------------------------------------------------------------------------
void vtkScalarBarActor::ComputeScalarBarThickness()