Set scatter plot color with RGB

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Sean Bredella
Sean Bredella 2021-5-24
评论： Image Analyst 2021-5-24
Hi!
I've got a question concerning my scatter plot.
I would like to set the color of the hexagons ('h') with a RGB triplet.
I tried with the help MATLAB gives under scatter with the following code:
scatter(xM14s,yM14s,125,'h','MarkerEdgeColor',[1 1 1], 'linewidth',2)
However this gives an error:
h(n) = matlab.graphics.chart.primitive.Scatter('Parent', parax, ...
which I don't understand.
In the same diagram I have:
lsline
h = lsline;
set(h(1),'color',[0.5 0.5 0.5],'linewidth',1)
Does this have to do with the error? When I remove the scatter plot and leave the lsline, the error however goes away.
Thanks!
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Sean Bredella
Sean Bredella 2021-5-24
Yes, i have tried with other Colors aswell. The problem is it gives me an error and no plot...
Image Analyst
Image Analyst 2021-5-24
x = rand(100,1);
y = rand(100,1);
MarkerColor = [0.5, 0.5, 0.5];
scatter(x, y, 40, MarkerColor, 'filled');
grid on;

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回答（1 个）

Image Analyst
Image Analyst 2021-5-24
编辑：Image Analyst 2021-5-24
I don't know what you mean by hexagons but to see the 3-D scatterplot of the RGB gamut, use colorcloud().
rgbImage = imread('peppers.png');
colorcloud(rgbImage);
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Image Analyst
Image Analyst 2021-5-24
No. colorcloud() does the scatterplot itself.
rgbImage = imread('peppers.png');
colorcloud(rgbImage);
Sean Bredella
Sean Bredella 2021-5-24
Thank you ver much for the effort.
But i have a 2D scatter plot and i want a specific color i made with an RGB Vector...

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