[vtkusers] Error in vtkRenderer::ResetCamera

[Jeff Baumes]

> I’m new to VTK and was trying to figure out some clipping issues in
> vtkRenderer.  While poking around in the code I ran across
> vtkRenderer::ResetCamera and a potential coding error.  It seems that ‘vn’
> is never initialized prior to being used.

>   if ( this->ActiveCamera != NULL )
>     {
>     this->ActiveCamera->GetViewPlaneNormal(vn);
>     }
>   else
>     {
>     vtkErrorMacro(<< "Trying to reset non-existant camera");
>     return;
>     }

This part of the code you sent will initialize vn or return from the
function without using it, so the extra line you suggested is not
needed.

Jeff