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How do I create a colormap for a flat plane?

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Jossie
Jossie on 20 Sep 2019
Commented: Jossie on 20 Sep 2019
I am creating a flat plane, I want the color of the plane to be a gradient. I tried using the colormap copper but it keeps it black because it is flat. How can I adjust the color?
[x,y] = meshgrid(1:1250,1:760);
z = zeros(size(x));
colormap('copper')
surf(x,y,z-1)

  2 Comments

Geoff Hayes
Geoff Hayes on 20 Sep 2019
Jossie - what do you expect the output to look like? Can you us how you expect the gradient to be applied to your 2D data?
Jossie
Jossie on 20 Sep 2019
ChangeDirectionOfColorTransitionsExample_03.png
Not necesarly this color scheme, but I want my flat plane to look something like this. Go from a dark color to a lighter one (without the grid). As I mention my plane is flat which does now allow me to variate the color.

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Accepted Answer

Bjorn Gustavsson
Bjorn Gustavsson on 20 Sep 2019
Use something like this:
surf(x,y,z-1,x+0.5*y),shading flat
You can use whichever linear combination of x and y to have your gradient in your desired direction.
HTH

  1 Comment

Jossie
Jossie on 20 Sep 2019
Exactly what I wanted! Thank you so much!

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