Re: how to set graphics backend

[Martin Helm]

Am Dienstag, 13. Juli 2010 19:19:08 schrieb Qianqian Fang:
> hi
> 
> I am curious to learn how to set a graphics backend
> in octave. The default "gnuplot" gives me very poor
> image quality and slow speed when plotting triangular
> mesh/surfaces/patch objects. I want to play with a
> few alternatives. I found plplot, and installed it on
> my Ubuntu box, but running backend ('plplot') gave
> me an error. No documentation was found that can get
> me around.
> 
> Any other backends are good for surface/mesh plotting?
> I remember jhandles is another backend, but could not
> find installation instructions.
> 
> please help, thanks
> 
> Qianqian
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The backend command is only for gnuplot and fltk (the official builtin 
backends). For third party plot libraries like plplot, jhandles and so on 
every such package has its own way to become active or inactive.

For example if you have installed jhandles you enable it with 

pkg load jhandles

I do not know if the following is still true for plplot-octave, but a long 
time ago the command to enable/disable it was:

toggle_plplot_use

at the octave prompt.

- mh