Color-interpolated patch legend is in full color instad of being interpolated

Hello,

I have a patch with a gradient color. Is there a way that this gradient color could be displayed in the figure legend (I don't want a color bar)?

Below is the code to reproduce the issue. I am on Matlab R2017a under mac os.

figure
patch([0 1 1 0],[0 0 1 1],[0 1 1 0],'FaceColor','interp')
legend('Why no interpolated colors here?')

I would like something which looks like this:

But the legend of the patch is full gray color:

Thank you for your help

[Jan]

What do you want to appear in a legend, when the object does not have a specific color? A legend seems to be meaningless in this case.

[liomsi liomsi]

I added an image (modified manually by adding a color bar over the legend) so that you can understand why I would like the gradient-color in legend.

Thanks

[Jan]

Yes, this is clear know. Thanks for the clarification.

Answer 1

[Jan]

The legend command is (one of) the most frequently modified function(s) of Matlab's toolboxes. You can access the contents of the legend by some undocumented methods, see https://undocumentedmatlab.com/blog/plot-legend-customization, but this has a certain leven of fragility, such that it will work with the current Matlab version only.

Please try, if one of the methods shown in this link can solve the problem.

[liomsi liomsi]

Thank you Jan.

So I understand there is no "normal" way to do it. It is disapointing that the legend color of a gradient patch cannot be a color gradient.

Your hacked solution seems quite complex to achieve what i want within a reasonable time, so I will do it by "photoshoping" it.