Lacking any additional information, DX can only use the current data set to choose a "good" size for the atoms. It looks at the size of the "bounding box" and the min and max of the data, and chooses a scaling that will result in glyphs that are of "reasonable" size relative to the bounding box. Thus as data change coming in, and the min and max (and potentially the bounding box) change size, that scaling is going to change.
I said "lacking any additional information". You can provide that information in a couple of ways. One is to set the min and max to AutoGlyph to constant values (then AutoGlyph doesn't use the current data's min and max, it uses what you give it). You can also use Glyph, which is similar to AutoGlyph, but allows you to choose a scale factor explicitly. (thus size=scalefactor*datavalue) Donna L. Gresh, Ph.D. Visual Analysis Group IBM T.J. Watson Research Center (914) 784-5049 http://www.research.ibm.com/people/g/donnagresh [EMAIL PROTECTED] [EMAIL PROTECTED]@opendx.watson.ibm.com on 08/13/2001 08:23:50 AM Please respond to opendx2-dev@lists.berlios.de Sent by: [EMAIL PROTECTED] To: opendx2-dev@lists.berlios.de cc: Subject: [opendx-dev] Swelling Atoms Hello all, Background: On a SGI running Irix--I'm using opendx to visualize some atomic build-up data. Using spheres to represent the atoms, I run the data through, render a gif image, and loop the next set of data through. This is done 80 times, producing 80 different gif images that I then convert into a single "running" gif, and thus an animation simulation of the atomic build up. I have several dozen sets of 80, all representing different variable changes. Most of the animations come out well, very representative of test data. But, I have a few runs though that the opendx program thinks it should swell the size of the atom as build-up occurs. So, as the data runs through opendx, the build-up occurs the same as the other runs (physical position of the atoms is ok, color representation of the different elements is ok) but the size of the atoms changes. I've changed the "AutoGlyph" ratio several times, but it only produced varying scales of the "swelling" atoms. Question: How can I have several dozen different runs of similar events with a few of them seemingly represented differently? Thanks, Alma Oliphant Honeywell FM&T Kansas City, MO (816) 997-4699
