[vtkusers] Merging adjacent cubes

[Kent Eschenberg]

You probably have some variable that indicates whether you want to display the 
box. Lets call it x where 1/0 means show/don't show. There is a filter called 
"Threshold" in ParaView (don't know its real name) that can select cells based 
on some variable. Use it with a threshold of x >= 0.5. Then use 
vtkDataSetSurfaceFilter to show the outer surface of threshold's output. It 
will draw only the "outer surface" and so avoid interior boundaries.

Kent
Pittsburgh Supercomputer Center

Freyr Magnússon wrote:
> Hi,
> 
> I have a project where I'm visualizing occupied areas in a 3d grid.  
> Currently I'm rendering a box for each cell occupied for lack of better 
> ideas.
> 
> The question are:
> 
> is there a better known way to render the grid?
> 
> if not is there a way to merge adjacent cubes to form a single shape and 
> remove the unnecessary internal geometry that will never be rendered anyway?
> 
> 
> regards,
> Freyr