2D line plot with colormap

Question

Marco Fellous Asiani 2016-5-31

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/286600-2d-line-plot-with-colormap

回答： Walter Roberson 2016-5-31

I would like to print a 2D curve (so a line in the plane X,Y) with its colourmap.

I have done this :

figure('Name', name);
   plot3(X,Y,squeeze(Z));
   view(2)

But I would like to add a colourmap just like I do with surf :

figure('Name', name);
 surf(X,Y,squeeze(Z));
 colorbar;
 shading interp;
 view(2);

How to do that ?

Thanks !

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Answer 1

Walter Roberson 2016-5-31

2
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/286600-2d-line-plot-with-colormap#answer_224031

plot() and plot3() do not use colormaps . They use ColorOrder property of the axes. Each line object that is drawn by plot() or plot3() is a single color that by default is chosen from a pre-determined list according to the order it is drawn, not according to the Z coordinate. It is not possible to use plot() or plot3() to have the line colored by Z coordinate.

If you want colored lines then see for example http://www.mathworks.com/matlabcentral/answers/285872-shading-with-plot3#answer_223465