When mouse-zooming with 3d orthographic projection, no exposed property is updated

[emmanuelle]

See the codepen https://codepen.io/emmanuelle-plotly/pen/QWWyjxg?editors=0011 and try to zoom using the mouse wheel. One would expect one property of the figure to be updated, such as scene.camera.eye or scene.aspectratio, but none of them changes.

In perspective projection, the scene.camera.eye is updated when wheel-zooming.

At the moment it is not possible to dump to JSON a figure which has been zoomed and then to reproduce it because the information about the zoom is not included.

[archmoj]

@emmanuelle the codepen now works with the wheel zoom: demo.

Wondering is we should apply those changes to _fullLayout.scene.aspectratio?

[alexcjohnson]

Yes, it’s a good idea to keep fullLayout in sync with layout, for the sake of Plotly.react

[emmanuelle]

Thank you @archmoj ! At the moment is there any way to retrieve this property in Dash? Using a clientside callbck in Javascript maybe? (I'm not familiar with this, just asking)

[etpinard]

At the moment is there any way to retrieve this property in Dash?

We should add this as part of a plotly_relayout event data object.

Here's what happens currently with the default (perspective) projection: https://codepen.io/etpinard/pen/MWWJoQM (open the console and start scrolling)

[archmoj]

orthographic demo