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A Comsol tip: How to create your own color table
Posted Jul 30, 2010, 3:07 a.m. EDT 2 Replies
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Hey All,
I always wanted to have my own color tables, and now I do :) Here's how:
Look under COMSOL4.0a/data/colortables
You will see lot of files which you're familiar with the name. Now duplicate one, and call it waterstyle.txt.
If you open it, you will see something like this:
% Continuous
0 0 0.5
0 0 1
0 0.5 1
0 1 1
0.5 1 0.5
1 1 0
1 0.5 0
1 0 0
0.5 0 0
These are RGB values on each rows. You can check by clicking here: bit.ly/b1wa8Z
Well, the rest is easy. Create your own numbers and then restart Comsol. I use it to have reverse order of color table, e.g. to imitate the "reverse" option we had in Comsol 3.5.
Have fun,
Danial
I always wanted to have my own color tables, and now I do :) Here's how:
Look under COMSOL4.0a/data/colortables
You will see lot of files which you're familiar with the name. Now duplicate one, and call it waterstyle.txt.
If you open it, you will see something like this:
% Continuous
0 0 0.5
0 0 1
0 0.5 1
0 1 1
0.5 1 0.5
1 1 0
1 0.5 0
1 0 0
0.5 0 0
These are RGB values on each rows. You can check by clicking here: bit.ly/b1wa8Z
Well, the rest is easy. Create your own numbers and then restart Comsol. I use it to have reverse order of color table, e.g. to imitate the "reverse" option we had in Comsol 3.5.
Have fun,
Danial
2 Replies Last Post Jul 24, 2016, 5:16 p.m. EDT
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Posted:
1 decade ago
This was extremely helpful and exactly what I was looking for. Have you by any chance found a way to change the line scale when exporting an image of the model to increase the line weights and make them more visible similar to what was available in 3.5a? Thank you.
-Matt
-Matt
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Posted:
8 years ago
Very cool.
I just created this wraparound Hue table that works OK for phase. Just OK because arg() wraps phase modulo +/- Pi and there's a visible "seam" through Red. Still, it's better than Rainbow.
% Continuous
1. 0. 0.
1. 0.1935483870967742 0.
1. 0.3870967741935484 0.
1. 0.5806451612903226 0.
1. 0.7741935483870968 0.
1. 0.967741935483871 0.
0.8387096774193549 1. 0.
0.6451612903225806 1. 0.
0.45161290322580644 1. 0.
0.25806451612903225 1. 0.
0.06451612903225806 1. 0.
0. 1. 0.12903225806451613
0. 1. 0.3225806451612903
0. 1. 0.5161290322580645
0. 1. 0.7096774193548387
0. 1. 0.9032258064516129
0. 0.9032258064516129 1.
0. 0.7096774193548387 1.
0. 0.5161290322580645 1.
0. 0.3225806451612903 1.
0. 0.12903225806451613 1.
0.06451612903225806 0. 1.
0.25806451612903225 0. 1.
0.45161290322580644 0. 1.
0.6451612903225806 0. 1.
0.8387096774193549 0. 1.
1. 0. 0.967741935483871
1. 0. 0.7741935483870968
1. 0. 0.5806451612903226
1. 0. 0.3870967741935484
1. 0. 0.1935483870967742
1. 0. 0.
I just created this wraparound Hue table that works OK for phase. Just OK because arg() wraps phase modulo +/- Pi and there's a visible "seam" through Red. Still, it's better than Rainbow.
% Continuous
1. 0. 0.
1. 0.1935483870967742 0.
1. 0.3870967741935484 0.
1. 0.5806451612903226 0.
1. 0.7741935483870968 0.
1. 0.967741935483871 0.
0.8387096774193549 1. 0.
0.6451612903225806 1. 0.
0.45161290322580644 1. 0.
0.25806451612903225 1. 0.
0.06451612903225806 1. 0.
0. 1. 0.12903225806451613
0. 1. 0.3225806451612903
0. 1. 0.5161290322580645
0. 1. 0.7096774193548387
0. 1. 0.9032258064516129
0. 0.9032258064516129 1.
0. 0.7096774193548387 1.
0. 0.5161290322580645 1.
0. 0.3225806451612903 1.
0. 0.12903225806451613 1.
0.06451612903225806 0. 1.
0.25806451612903225 0. 1.
0.45161290322580644 0. 1.
0.6451612903225806 0. 1.
0.8387096774193549 0. 1.
1. 0. 0.967741935483871
1. 0. 0.7741935483870968
1. 0. 0.5806451612903226
1. 0. 0.3870967741935484
1. 0. 0.1935483870967742
1. 0. 0.