Re: Inquiry about Jhandle

[Michael Goffioul]

On Wed, Jul 9, 2008 at 12:38 PM, Tatsuro MATSUOKA <address@hidden> wrote:
> Hello
>
> I have a question about jhandles graphics. (3.0.1-vs2008)
> I have tested  print('finename', '-dDEVICE')) command when jhandle is graphic 
> backend.
>
> The postscript device worked fine.
>
> However othe devices did not work fine. For example
> octave-3.0.1.exe:7> print ('test.svg', '-dsvg');
> error: unsupported output format: svg
> error: evaluating switch command near line 25, column 7
> error: evaluating if command near line 21, column 5
> error: evaluating if command near line 19, column 3
> error: called from `drawnow' in file 
> `C:\Programs\Octave-3.0.1-vs2008\share\octa
> ve\packages\jhandles-0.3.3\drawnow.m'
> error: evaluating if command near line 412, column 3
> error: called from `print' in file 
> `C:\Programs\Octave-3.0.1-vs2008\share\octave
> \3.0.1\m\plot\print.m'
>
> For png, test.png was created but it was a mere black square.
>
> Does 'print command' on Jhandle graphics support only the devices related to 
> the postscript?
> If my suspection is true, please document the fact.
> I think that it is OK that jhandle supports only postscript related devices.
> However it is useful for users that the fact is documented at the appropriate 
> place.

For the time being, only the postscript output is reliable.

> BTW
> I have another question.  The both jhandle and gnuplot can be installed.
> Can I switch the graphic backend after the octave installed ?

To enable jhandles: pkg load jhandles
To disable jhandles (and switch back to gnuplot): pkg unload jhandles

Michael.