Change color axes of interpolation

Hello,

I am using griddata to interpolate a surface based on the data points of two sets described here (https://www.mathworks.com/help/matlab/ref/griddata.html)

The interpolation works well, but I was wondering if it was possible to change the color used so that the two interpolated surfaces are the same color scale.

Right now the interpolation of Set A has a high of 50 and a low of 10 while the interpolation of Set B has a high of 40 and a low of 25. Both uses red as the high point and gradually goes to blue as the low point.

What I would like to do is use the same axes color scale so that Set A would still show the high/red as 50 and low/blue as 10 while Set B would show its high of 40 as a orange color while its low of 25 as a greenish color.

Is that possible?

Thanks

Answer 1

[Zeeshaan Ali]

Hi Dennis,

I would suggest you try out the below simple example showcasing the use of caxis which leverages the previous plot’s color scheme.

[X1,Y1] = meshgrid(-10:.5:10); 
R1 = X1.^2 + Y1.^2; 
Z1 = R1 
[X2,Y2] = meshgrid(-5:.5:5); 
R2 = X2.^4 + Y2.^4; 
Z2 = R2; 
  
ax1 = subplot(2,1,1); 
ax2 = subplot(2,1,2); 
m1 = mesh(ax1,Z1); 
c1 = caxis(ax1); 
m2 = mesh(ax2,Z2); 
caxis(ax2,c1) 

I hope this helps.

Zeeshaan