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Xinteranimate problem!! [message #18211]

Fri, 10 December 1999 00:00

mensar
Messages: 3
Registered: December 1999

Junior Member

<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<html>
Dear all
I would like to thank everyone in the group for the help they have given
me so far, particularly Liam Gumley. My latest problem is with XINTERANIMATE.
The program runs, but I seem to be getting an error which says that 'only
one animation at a time is allowed'. In the window I get the error
:
% Program caused arithmetic error: Floating divide
by 0
I believe the xinteranimate is loading the sequence
22 times. The program is :-
  
 pro OnOpen
  ; Get the Filename
   openr, 1, 'E:/Temp/batch.rvd'
   datas=fltarr(3,36,49,22)
   readf, 1, datas
   close, 1
   h=rebin(reform(datas[2,*,*,*]), 72, 98,
22)
   loadct, 3
 ; erase
   frames = fltarr(512, 512, 22)
   window, 1, TITLE='Bloodflow animation',
xsize=512, ysize=512
   XINTERANIMATE, set=[512,512,22]
   for i=0, 21 do begin shade_surf, h[*,*,i],
zrange=[-1,+1] & frames[*,*,i]=tvrd() & xinteranimate & end
end
One other small thing that I have also experienced
is that the loadct command does not seem to load any colour map to my shaded
surface. It simply appears black and white.
Any help in this matter would be most appreciated.
 cheers
scott reid
--
 ************************************************************ ********
  Scott Reid
  Department of Mechanical Engineering
  University of Leeds
  LS2 9JT
  
  Tel: 0113 233 2179
  E-MAIL: mensar@leeds.ac.uk
  URL: <A HREF="http://www.mech-eng.leeds.ac.uk/mensar/index.html">http://www.mech-eng.leeds.ac.uk/mensar/index.html</A>
 ************************************************************ ********
  </html>

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Re: Xinteranimate [message #18382 is a reply to message #18211]

Mon, 03 January 2000 00:00

Christophe Marque
Messages: 11
Registered: January 1999

Junior Member

David Fanning wrote:

> 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

The first solution is correct, no more problems!
thank you very much,
and best wishes for the new year.
Christophe.

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Re: Xinteranimate [message #18385 is a reply to message #18211]

Fri, 31 December 1999 00:00

davidf
Messages: 2866
Registered: September 1996

Senior Member

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

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