[Jprogramming] savemat_jviewmat_

Tue Dec 16 04:40:18 HKT 2008

Thanks
That will save me the time of struggling with another potential solution.

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 Devon McCormick
Sent: December-15-08 5:04 AM
To: Programming forum
Subject: Re: [Jprogramming] savemat_jviewmat_

I've tried a number of variations on using "wd 'msgs'" with no success.
I've also noticed that playing around with this will eventually start
messing up my J session: response to a line of input will defer until the
following "Enter" and spurious form feeds (12{a.) will start popping up in
my Jconsole session (under emacs).

On Mon, Dec 15, 2008 at 3:59 AM, Oleg Kobchenko <olegykj at yahoo.com> wrote:

> You are right about giving a chance for viewmat to update the screen.
> For sequence of images I suggested animate addon in the link below.
>
> Also you may try wd'msgs'.
>
>
> Oleg
>
>
> On Dec 15, 2008, at 0:31, "Devon McCormick" <devonmcc at gmail.com> wrote:
>
> Dr. Brouwer - I think this is not so much a Vista 64-bit problem but a
> general problem with the event-loop/message-pump handling.
>
> I've encountered this problem before: I have a sequence of lines of code
> that work fine in immediate execution but fail when they're in a function.
> I believe the problem is that viewmat needs to get to a state of waiting
> for
> user input before it will finish displaying its picture.  This doesn't
> happen within multiple lines in a function, so only a blank picture is
> saved.
>
> I've tried lots of different ways to get around this and have settled on
> using the "image3" add-on to write my images instead of relying on
viewmat.
> This is too bad because viewmat does offer a nice display of complex
> numbers
> that I haven't replicated with image3 code.
>
> This problem is also mentioned by Dan Bron at
> http://www.jsoftware.com/jwiki/DanBron/Snippets/PrettyPictures and even
> Oleg
> doesn't have a solution.
>
> Regards,
>
> Devon**
>
> On Sun, Dec 14, 2008 at 12:54 PM, Roelof K Brouwer <rkbrouwer at gmail.com
> >wrote:
>
> I have problems with viewmat save in vista 64bit. In particular the
> following two statements
>
>
>
>
>
> ( 1 4 14 {". COLOR16) viewmat i.4 4
>
> savemat_jviewmat_ 'C:\Temp\garbage.bmp'
>
>
>
>
>
> this will give a blank window when used  in a verb
>
> and also in ijx when debug is in
>
> sometimes by adjusting the viewmat window I will get the proper display .
> i.e. click the margin of the window for exdpansion. However sometimes on
> expansion the window does not have the correct
>
> displayI
>
> if I remove the save command things will work
>
>
>
> when in ijx I can first run viewmat command and then the save command and
> things will work
>
> I also tried puttting a delay between the two viewmat commands
>
>
>
> here is my complete file with verb
>
>
>
> drivedata=: 'C:\Users\RKBrouwer\Documents\ACA\Research\ResData\'
>
> drive_op=:'C:\Users\RKBrouwer\Documents\Temp\Set\'
>
> drive=:'C:\Users\RKBrouwer\Documents\ACA\'
>
> require 'viewmat color16 plot'
>
> load 'C:\Users\RKBrouwer\Documents\J_Code_Roelof\J_utilities_roelof.ijs'
>
> NB. load
> 'C:\Users\RKBrouwer\Documents\J_utilities_roelof\visual_clustering.ijs'
>
> require 'jfiles'
>
>
>
> test_viewmat=:3 : 0
>
>              ( 1 4 14 {". COLOR16) viewmat i.4 4
>
>              savemat_jviewmat_ 'C:\Temp\garbage.bmp'
>
> )
>
>
>
>
>
>
>
> 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 :  <mailto:rkbrouwer at ieee.org> rkbrouwer at ieee.org
>
> <http://www.tru.ca/advtech/compsci/faculty/rbrouwer>
> www.tru.ca/advtech/compsci/faculty/rbrouwer
>
>
>
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
>
>
>
>
> --
> Devon McCormick, CFA
> ^me^ at acm.
> org is my
> preferred e-mail
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
>
>
>
>
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
>

-- 
Devon McCormick, CFA
^me^ at acm.
org is my
preferred e-mail
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