[Jprogramming] savemat_jviewmat_

[Roelof K Brouwer]

Sorry I don't have much of an idea of what you are talking about. That is because I use J mainly as a calculation server for expressing algorithms that I develop and execute. Graphic output has been outside my domain so far and I was looking for a simple working way to produce black/white/grey graphs of matrices and then saving them in files, without my intervention, at several locations in my verb. The displays saved should be easily portable into a word document where I can resize if necessarily. I can do this with displays produced with plot ( density graphs ) but viewmat seemed so much nicer. If I used clipboard I would be restricted to one save unless I intervened.

cheers


Roelof

"Have a cool mind and a warm heart" - Ajahn Sona
 "Like ......(hamsters on a wheel), (ambitious people) still climb and climb, with great labor, and incessant anxiety, but never reach the top."   Robert Browning
"We shall not cease from exploration. And at the end of all our exploring
Will be to arrive were we started and know the place for the first time" - T. S. Eliot


Dr. Roelof K. Brouwer PH.D.  P.Eng.
Professor Emeritus
Dept. of Computing Science
School of Advanced Technologies and Mathematics
Thompson Rivers University
900 McGill Road
Kamloops, BC
Canada, V2C 5N3

email : rkbrouwer at ieee.org
www.tru.ca/advtech/compsci/faculty/rbrouwer


-----Original Message-----
From: programming-bounces at jsoftware.com [mailto:programming-bounces at jsoftware.com] On Behalf Of bill lam
Sent: December-15-08 10:43 PM
To: programming at jsoftware.com
Subject: Re: [Jprogramming] savemat_jviewmat_

On Sun, 14 Dec 2008, Roelof K Brouwer wrote:
> ( 1 4 14 {". COLOR16) viewmat i.4 4
> 
> savemat_jviewmat_ 'C:\Temp\garbage.bmp'

The root of problem is that viewmat is implemented by J gl2 verbs and
gl2 can only render itself when J is idle. A possible solution is to
re-implement viewmat with other libraries. For example, in the recent
plot, Chris wrote cover verbs using gtk to emulate some J gl2 and the
plot itself does not need major modification to incorporate gtk
backend.  Parallel to this, cover verbs using gdiplus can be added to
viewmat to make it work without gl2 under m$ window.  The gdiplus
addon is a good starting point.  For linux jconsole, I suggest using
gtk instead.

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