2D annotations (text) in plot3d

[andrebelem]

I've been working a lot with pygmt's 3D (plot3D) fields, and it's excellent!
However, the biggest difficulty is that when I need to annotate any point in the figure, the use of the "l" option (-Sl n GMT) only allows it to write in 3D, when in fact it would be interesting to have the text in 2D, in the position X Y Z.

Another interesting point is that as much as I try to change the text justification via "+jBL" to bottom left, the text doesn't change, being always centered.

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[maxrjones]

Thanks for the feedback @andrebelem! For the first point, do you think the solution proposed in #1393 would work for your use case?

[andrebelem]

Thanks for the feedback @andrebelem! For the first point, do you think the solution proposed in #1393 would work for your use case?

Humm..that's very interesting. So, if I understood well, pygmt.text should work for a given x/y/z text?

[maxrjones]

This is an example of that option in use for GMT - https://docs.generic-mapping-tools.org/latest/gallery/ex08.html. While the text is plotted at z=0, it could be plotted at other elevations.

[andrebelem]

Well, that's the problem. The text written on top of the cube is in perspective. My suggestion is to have the position anchor based on X/Y/Z but write "flat", in 2D (for example as ETOPO5 is written in the title).

I had already seen the text (pstext) and tried several alternatives here, and I was only able to do it "by hand" by placing a basemap over the 3D, but it is much harder to get right.

[maxrjones]

I'm not sure the best way to accomplish the map you're looking for. Could you pose the question to the GMT forum to find out if there's an easier way to get that appearance using GMT, which would inform whether we can support that in PyGMT?

[andrebelem]

Sorry for the long delay.
I did some testing and managed to create a reasonable workflow for these 2D annotations (on a 3D map) using basemap overlap. For now I won't open another request because I know you guys are very busy. But I'll keep my eyes peeled on the forum, who knows if anyone else sees this need for plain text in 3D (for now, it looks like just me).
But thank you for the concern. Thanks.