Adding new DataArray.plot method for 2D DataArrays.

[vasilisniaouris]

Hello all! New xarray and really loving it! More often than not, When I am plotting 2D data arrays, I want to plot lines with an x-axis being one of the array dimensions, and the color of the line being the second dimension. Currently, this can be achieved by xarray.DataArray.plot.line by providing x and hue, and then creating a custom colormap and colorbar. What I am proposing looks a lot like the second example plot on the matplotlib line_collection page.

[Illviljan]

See #7173. I think I got stuck whether it should be a new method or not.

[vasilisniaouris]

Hello, thank you for your response! I looked at #7173. It seems like it would enable the feature I am interested in. I believe the functionality I am looking for can be added to the line method, by allowing a cmap creation, instead of circling over the matplotlib base colors, which is what you have done in #7173. I was not aware of it.

I am fairly new to github discussions, so I am not sure if the #7173 has been successfully implemented yet. I tried to run the code of the example and it failed. Is there a timeline as to when it would be implemented?