Orthographic projection for 3D plots

[emimoun]

Hello,

I would like to know if 'orthographic' projection could be added as an option to plotly 3D plots.
Indeed, this option is available in Matlab, and in matplotlib since version 2.1.

As explained here, such a projection maintains parallelism and distances, and is therefore sometimes better suited when plotting data. For example, a camera looking along the z axis (top view) would directly give you a perfect xy plane projection, which it does not do on Plotly right now,
as can be seen on that example.

[alexcjohnson]

Seems reasonable - @dy is this just a matter of exposing the fovy option to gl-plot3d and setting it to what, 0, or something sufficiently tiny?

[emimoun]

Actually, I did try it just to see if it would work, and it does for the plot itself, but for some reason the axis labels were then appearing very far from the axes. I did not dig further for the reason why, and maybe I did it wrong, though.

[marcotama]

I would love to see this feature!

[jonaraphael]

Please add!

[erickee]

Can the priority of this be raised? It is a serious issue for reading certain types of technical plots.

[archmoj]

PR #3331 is related to this.
@etpinard @nicolaskruchten I was wondering if this may possibly be added to the list of items on the road-map? The Volume-3d trace would be displayed nicely with orthographic projection too.