Re: Xinteranimate

[davidf(at)dfanning.com (David Fanning)]

Christophe Marque  (christophe.marque@obspm.fr) writes:

> I've some troubles with xinteranimate.
> I want to realize a short movie with a sample of images ( displayed with tvscl),
> overlapped by a circle. 
> I used  the following commands:
> << tvscl,img(*,*,i)
> <<plot_circle
> <<a=tvrd()
> <<XINTERANIMATE, FRAME = i, IMAGE = a
> Everything is OK except the color table behaviour. One
> image is correct (red table for example) but the next ist wrong (it looks like
> an overexposed photograph). Then the next one is correct and  the next one is
> wrong etc.... 
> I have the same behaviour with other color tables (rainbow18 for example) 
> I think the problem comes from the tvrd() function. Is there a solution?

I think the easiest thing to do is just avoid the 
TVRD thing altogether:

   tvscl,img(*,*,I)
   plot_circle
   XINTERANIMATE, FRAME = I, WINDOW=!D.Window

Another alternative is to do the TVRD thing, but
do it in the Z-buffer, where you are guaranteed 
an 8-bit device.

Cheers,

David

-- 
David Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438 E-Mail: davidf@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155