Hi Rohit,
> i'm an engineering student at EPFL, Lausanne and am trying to display
> the results of finite element calculations of fluid flow over a profile as
> a 2D display. The input consists of vectors of node locations in the xy
> plane and the corresponding values of the display parameter at each node.
> The mesh is very fine near the profile and coarse away from it. I use the
> Irregular2DSet for the purpose.
> The problem is that the resulting image does not show details, i.e. as if
> most of the points in the finer parts of the mesh have been skipped. I
> also tried to `clip' the data, i.e. remove all points (from the input
> vectors) that lie outside a square which encloses the profile. To my
> surprise, the image was detailed if the square was smaller than a certain
> size which corresponded approximately to the finer part of the mesh. For a
> square just larger than this size, the image looked like a coarse mosaic
> showing no details.
> Please tell me what can be done to ensure a good image when a larger field
> of view is required and also when different meshes are used.
This is a mystery, because it does not correspond to any
logic in VisAD. If your set was a Gridded2DSet and your
display used texture mapping, VisAD can smooth the
topographical shape (but not the colors, and the smoothing
can easily be turned off). However, nothing like this
happens for Irregular2DSets. Can you please send me the
code and data to run your program, so I can investigate?
Cheers,
Bill
----------------------------------------------------------
Bill Hibbard, SSEC, 1225 W. Dayton St., Madison, WI 53706
hibbard@xxxxxxxxxxxxxxxxx 608-263-4427 fax: 608-263-6738
http://www.ssec.wisc.edu/~billh/vis.html
