Extracting the x,y,z components of the field using array for 3D plotting

[code-whale]

Dear Ubermag Team,I want to be able to use matplotlib for 3D plotting, so I tried to use field.(x,y,or z).plane('z').array to extract the individual components in the section, but it returned the following error: Argument Z must be 2- dimensional.
I have attached the error to the following chart：

where system.m is a regular field object。
I would like to be able to represent the skyrmion as a similar 3D structure as shown below, can you tell me how to do this, thanks for your help！

[marijanbeg]

Hi @code-whale, thank you for your question. The issue you encountered is not related to Ubermag - it is related to how you call plt.plot_surface() function.

Please have a look at this example from Matlotlib (https://matplotlib.org/stable/gallery/mplot3d/surface3d.html). The arrays x and y should be coordinates and not magnetisation components. Although these can be defined relatively easily by the user, I have just noticed we do not have a convenience function in Mesh that can return the coordinates. For that reason, I will keep this issue open since this is something we can consider for the next Ubermag release.

[code-whale]

@marijanbeg , thanks for your reply and suggestions! I have improved the original code and now I can draw skyrmion 3D, system.m.z.array returns a 4 dimensional array. I reduced the dimension of the array. Also I'd like to ask you if ubermag can get the position coordinates of a circle or custom shape to make the image look good! Thanks again for your help!

[marijanbeg]

Hi @code-whale, it is difficult to say where Ubermag's functionalities end and where problems can be solved using already existing tools from Python's ecosystem. We believe this functionality is not something that should belong to Ubermag and we recommend the combination of numpy and matplotlib to address this problem.