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Re: Figure handle is very slow, saving impossible

From: Francesco Potortì
Subject: Re: Figure handle is very slow, saving impossible
Date: Wed, 05 Apr 2017 18:23:47 +0200

>> I'm a very beginner in octave. I want to handle big geotif images and do
>> multi spectral analysis of the channels. Everything seems to work very fine
>> but when it comes to visualizing with surfaceplot function the Figure
>> Window reacts very slow and with poor performance.
>> is there a possibility to improve this behavior?

Kire Pudsje:
>As to speed, just think about it, with a 7000^2 dataset of doubles you
>would need to transfer 400 MB to generate each image.

If it is b&w.  More if with colours.

Anyway, if an image should be generated ans saved on disk, it's useful
to spare Gnuplot the burden to display it: use

set(gcf, 'visible', 'off');

before generating the plot, and then save it to disk using print

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