<div dir="ltr">Hi all,<br><br>I am trying to overlay a contour on a DICOM image. I am using vtkRenderWindow with vtkInteractorStyleImage. When I move away from the central slice the contours look enlarged slightly. I though this could be fixed by setting ParallelProjectionOn() in vtkCamera. But the problem is the contour only appears on the central plane and disappears when I scroll away from that.<br>
<br><br>Whe should the parallel projectionOn called, after Render() or before that?<br><br>Thanks<br><br>Jothy<br><br><br><br></div>