[vtkusers] query regarding .vtk file

[Bryn Lloyd]

Hi Bhawna

When you use glyphs, for every point there will be a glyph. The glyph 
itself is a surface of maybe 20-30 triangles and points. So this would 
explain why you see more points in the "glyph dataset" than the original.

==> 47368/1528 = 31


I think the scale mode is either scale by
  - vector component
  - vector (i.e. magnitude),
  - scalars (some other scalar valued array in the dataset)
  - off = no scaling

The glyphs that are appearing, might have a vector magnitude close to 
zero (or even zero).
With 'scaling = off' I think only the direction of vector array is used. 
This will give bad/wrong results for zero magnitude vectors. You can use 
the threshold filter to remove these.

Maybe the documentation of the code helps also:
http://www.vtk.org/doc/nightly/html/classvtkGlyph3DMapper.html

Cheers
Bryn










On 2/2/2012 10:34 PM, bhawna verma wrote:
> le and i open it in paraview, and i see the data details using 
> stastistical inspector i see a specified no. of points(say 1528) but,
> when i see the data using glyph the no. of points chang
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