Method: GtkVTKRenderWindow#Zoom

Defined in:
lib/VTK/gtk/GtkVTKRenderWindow.rb

#Zoom(x, y) ⇒ Object 



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# File 'lib/VTK/gtk/GtkVTKRenderWindow.rb', line 477

def Zoom(x,y)
  if @CurrentRenderer

    renderer = @CurrentRenderer
    camera = @CurrentCamera

    zoomFactor = 1.02**(0.5*(@LastY - y))
    @CurrentZoom = @CurrentZoom * zoomFactor

    if camera.GetParallelProjection
      parallelScale = camera.GetParallelScale/zoomFactor
      camera.SetParallelScale(parallelScale)
    else
      camera.Dolly(zoomFactor)
      renderer.ResetCameraClippingRange
    end

    @LastX = x
    @LastY = y

    self.Render
  end
end