I don't know exactly how you are doing the scatter plot projections with (x,y) but presumably you somehow get these into the "positions" component. AutoColor works on the "data" component, which you may not have in your field (use "Print" with the "r" option to look at what you have). You can use Mark to mark the "positions" as "data" so that autocolor will see it. (it won't actually remove them from the "positions"; it's more like a "copy") After using Mark, do the thing with Compute referenced below to extract just the one component.
There are a number of examples of doing things like this in the samples. Look for examples that use Mark and I think you'll start to understand the logic flow of some typical programs better.
Donna L. Gresh
Optimization and Mathematical Software Group
IBM T.J. Watson Research Center
(914) 945-2472
http://www.research.ibm.com/people/g/donnagresh
[EMAIL PROTECTED]
| "John R. Cary"
<[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED] 07/23/2004 06:38 PM
|
|
Thanks for your reply. But then how does the a.0 data
(to be plotted as y) get colored by what comes out
of AutoColor?
Thanks again.....John
On Fri, 23 Jul 2004, Joel Richardson wrote:
>
> Assuming the "data" component holds the 4-vectors and
> that the 4th vector element holds the internal
> variable, you could do this:
>
> ...->Compute("a.3")->AutoColor()->...
>
> Cheers,
> Joel
>
> >
> > I have a 4-vector on an irregular set of points. (A collection
> > of particles with 3 velocities and one internal variable
> > that are at irregular positions in space.) I can
> > easily do the various scatter plot projections that I need
> > with all points black. However, I would like to be able to
> > have the point colored depending on the value of the extra
> > internal variable.
> >
> > Can this be done with OpenDX? Any hints on getting started?
> >
> > Thanks.....John Cary
> >
> > --
> > John R. Cary
> > Professor, Dept. of Physics, University of Colorado, Boulder, CO 80309-0390
> > [EMAIL PROTECTED]
> > ph. (303) 492-1489 fax (303) 492-0642 cell (720) 839-5997
> >
>
>
> ===============================================================
> Joel Richardson, Ph.D. [EMAIL PROTECTED]
> The Jackson Laboratory Phone: (207) 288-6435
> 600 Main Street Fax: (207) 288-6132
> Bar Harbor, Maine 04609 URL: www.informatics.jax.org
> ===============================================================
>
>
--
John R. Cary
Professor, Dept. of Physics, University of Colorado, Boulder, CO 80309-0390
[EMAIL PROTECTED]
ph. (303) 492-1489 fax (303) 492-0642 cell (720) 839-5997
