How can I plot something like this ?

2019 7 22
1 个回答
更新时间：2019 7 23
3 次查看（30 天）

0 个投票

Hello everybody,Capture.PNG
I have a hard time finding the right approach for plotting my data like in the photo. Each branch corresponds to a direction and the intersection is the origin. Does anyone know a classical way to do this?

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回答（1 个）

darova
darova 2019-7-22

0 个投票

You have to think how to draw many lines with different colors. I'd use jet() colormap
Untitled.png
Simple example
cm = jet(256); % create 256 colors of jet() colormap
h(1) = plot([0 1],[0 1],'COlor',cm(220,:)); % draw red line
hold on
h(2) = plot([1 2],[1 2],'Color',cm(190,:)); % draw orange line
h(3) = plot([2 3],[2 3],'Color',cm(160,:)); % draw yellow line
hold off
set(h,'LineWidth',5);

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othmane jerhaoui
othmane jerhaoui 2019-7-23
Hello,
Thank your for your answer. I actually did some research and I ended up doing this:
x = linspace(-8,0,n); y = x;
% p = plot(x,y,'r', 'LineWidth',5);
%
% % modified jet-colormap
% cd = [uint8(jet(n)*255) uint8(V)].';
%
% drawnow
% set(p.Edge, 'ColorBinding','interpolated', 'ColorData',cd)
%
Now what I didn't figure out is how to display the colorbar to see the values. Do you know how to do it?
Adam
Adam 2019-7-23
doc colorbar
Always search the help first for the most obvious key words. In this case not only a keyword, but an actual function with exactly the name you would expect!

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