A 2D plot with different colors for each point

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parham kianian
parham kianian 2020-3-23
回答： darova 2020-3-23
Suppose time is a column vector of length Lt, freq and amp are matrces of size Lt * n. I want to plot a each column of freq against time such that color of each point should be determined using amp matrix. In fact I want to construct something like this:

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darova
darova 2020-3-23
Using patch()
n = 30;
x = linspace(0,10,n)';
y = sin(x);
c = jet(n);
fv.vertices = [x y];
fv.faces = [1:n-1;2:n]'; % connection list
cla
h = patch(fv,'facevertexcdata',c,...
'edgecolor','interp',...
'linewidth',2,...
'marker','o');

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