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Re: Printing pcolor image takes a bit long

From: Francesco Potortì
Subject: Re: Printing pcolor image takes a bit long
Date: Wed, 21 Nov 2012 16:28:11 +0100

>Just wanted to update the progress in case it will help anyone.
>I'm plotting with the image function now, which allows me to overlay
>the image with lines in gnuplot 

I have used Octave to produce plots with an image background, if that's
what you are trying to do.  This is an excerpt of the code I used:

alpha = 0.5;
light = 0.5;
pav = alpha*light*255+(1-alpha)*flipdim(imread("pavimento13_small.jpeg"),2);
l = [0 11.41-0.60 0 6];                 # size of floor

close; image(linspace(l(1),l(2),1944), linspace(l(3),l(4),1080), pav); 
hold on; plot(path_1(:,[1 3]),path_1(:,[2 
print -color -depsc2 path1.eps

>But the problem now is the colors come out washed when using gnuplot.

I see full colours.  Since I wanted to wash them out, I used the "alpha"
and "light" variables above.  When I want unwashed colours I set alpha=0.

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