[vtkusers] minimum size of scalar glyph

[Adam Bruss]

Hi Eric thanks for the response,

 

When I turn clamping on all my particles disappear. Changing the range
affects the color of particles that are above or below the changed
range. The particle sizes are unaffected.

 

I'm not seeing a way to affect the size of the scalars except with the
scale factor which of course changes all the glyphs.

 

Could you investigate how you had it working?

 

Thanks,

Adam

 

From: Eric E. Monson [mailto:emonson at cs.duke.edu] 
Sent: Friday, April 09, 2010 2:27 PM
To: Adam Bruss
Cc: vtkusers at vtk.org
Subject: Re: [vtkusers] minimum size of scalar glyph

 

Hey Adam,

 

I'm pretty sure there is a way to do this. Look at the combination of
ClampingOn() and SetRange(min,max). I think I've used this to do exactly
what you're talking about: making sure that the glyphs don't go under a
minimum size or over a max size.

 

If you have trouble getting it to work I can try it again to make sure
it works. (I was using a modified version of the glyph filter that only
scaled glyphs along the direction of a vector, not in the other two
directions, so I don't remember whether I had also altered this scale
clamping functionality...)

 

Talk to you later,

-Eric

 

------------------------------------------------------

Eric E Monson

Duke Visualization Technology Group

 

 

On Apr 9, 2010, at 11:39 AM, Adam Bruss wrote:





Hello,

 

We're using vtkglyph3d to represent scalar data. Some of the scalars
show up as very small spheres. We would like to set a minimum size that
the spheres can be. One can set the PointSize property of an actor to
control size. Is there a way to set a minimum size for scalar data
rendered with vtkglyph3d? Sort of like anything smaller than x gets the
size of x.

 

Thanks,

Adam

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