Patch color error "Vectors must be the same length."
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I am trying to plot 2 patchs with different color. " patch(x, y, c, 'FaceColor', 'flat');" shows error "Vectors must be the same length.". How to setup the color?
x =[ 1 2
1 2
2 3
2 3];
y =[1 2
2 3
2 3
1 2];
c=[0 0.7344
0 1.0000
0.5156 0.2656];
figure;
patch(x, y, 'r');
figure;
patch(x, y, c, 'FaceColor', 'flat');
Thanks,
cfy30
2 个评论
Geoff Hayes
2020-6-29
cfy30 - which of the effects from C - polygon colours are you interested in? Because that will tell you what the dimensions for C should be.
cfy30
2020-6-29
采纳的回答
Tommy
2020-6-29
The docs linked by Geoff mention that you can specify an n-by-1-by-3 array of RGB values (for n number of faces). I've defined c to be an n-by-3 array of RGB values and then used reshape() to get the dimensions right:
c=[0 0 0.5156 % <- RGB of first color
0.7344 1.0000 0.2656]; % <- RGB of second color
figure;
patch(x, y, reshape(c,[],1,3), 'FaceColor', 'flat');
更多回答（1 个）
Ameer Hamza
2020-6-29
编辑：Ameer Hamza
2020-6-29
Using for-loop seems to be the simplest solution in this case.
x =[ 1 2
1 2
2 3
2 3];
y =[1 2
2 3
2 3
1 2];
c=[0 0.7344
0 1.0000
0.5156 0.2656];
figure;
for i=1:size(x,2)
patch(x(:,i), y(:,i), c(:,i).');
end
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