Figuring out how to set custom RGB colors in fill function in R202b

Hello all:

I am trying to specify an rgb color to use for the fill function in R2020b using what is common MatLab synax:

cmap = [0 0 .3333;
0 0 .6667;
0 0 1];
tt = 1:.5:10;
lb1 = tt;
ub1 = 2.*tt;
x2 = [tt,fliplr(tt)];
inBetween = [lb1,fliplr(ub1)];
h = fill(x2, inBetween,'Color',cmap(1,:),'LineStyle','none');
set(h,'facealpha',.4)

but when I run this code I get the following error:

Error using fill
Not enough input arguments.

Error in tplots (line 192)
h = fill(x2, inBetween,'Color',cmap(1,:),'LineStyle','none');

So my question is is there some way to set custom RGB color for the fill function?

[Image Analyst]

I'd need to run your code, which I can't at the moment because you forgot to attach tt, lb1, and ub1. Once you attach those I can try to run your code and fix it.

[Joshua Macdonald]

done

Answer 1

[Walter Roberson]

cmap = [0 0 .3333;
0 0 .6667;
0 0 1];
tt = 1:.5:10;
lb1 = tt;
ub1 = 2.*tt;
x2 = [tt,fliplr(tt)];
inBetween = [lb1,fliplr(ub1)];
h = fill(x2, inBetween, cmap(1,:),'LineStyle','none');
set(h,'facealpha',.4)

[Joshua Macdonald]

thanks!