[vtkusers] Overlaping view props in a rendered

[Sarah Macumber]

Opps, totally my mistake, I didn't expect them to be static & wasn't looking there.  
 
Thanks Dave,
Sarah

________________________________

From: David Cole [mailto:david.cole at kitware.com]
Sent: Mon 8/4/2008 12:41 PM
To: Sarah Macumber
Cc: Thompson, David C; Gerrick Bivins; VTK-users
Subject: Re: [vtkusers] Overlaping view props in a rendered


They are not missing. They are static. 

Reference them like this:
vtkMapper.SetResolveCoincident......


HTH,
David Cole


On Mon, Aug 4, 2008 at 1:12 PM, Sarah Macumber <S.Macumber at questreliability.com> wrote:


	Hi David,
	
	That is a great idea except for the fact that none of the SetResolveCoincidentTopology( ) functions seem to exist in the Dot Net wrapped version of VTK.  Those functions exist in the documentation all the way back to version 4.0 so I do not know why they don't appear in the ActiViz.NET release which wraps 5.2.
	
	Anyone know why these functions are missing?
	
	Sarah
	
	________________________________
	
	From: Thompson, David C [mailto:dcthomp at sandia.gov]
	Sent: Fri 8/1/2008 8:18 PM
	To: Sarah Macumber; Gerrick Bivins; VTK-users
	Subject: RE: [vtkusers] Overlaping view props in a rendered
	

	> Hi Gerrick, thanks but I don't think that is exactly what I am after
	> as my data exactly overlaps.
	> I have a vtkUnstructuredGrid of which I select a portion of and
	> create a new vtkUnstructuredGrid from.  Thus I have the original
	> grid and then a second subsampled grid.  I want to draw the original
	> grid with the selected grid on top so the cells will actually overlap
	> exactly but each grid has a different lut so you can see the selected
	> portion.
	
	Hi Sarah,
	
	   Take a look at vtkMapper::SetResolveCoincidentTopology(). It uses
	OpenGL's glPolygonOffset() to move the geometry slightly towards
	the camera. It isn't perfect because it takes a couple of parameters
	that aren't always easy to choose appropriately, but it works
	relatively well.
	
	   David