I set my axis to “autorange”, so the “range” property is not available, and anyway properties of layout object are not updated upon plotting data.
So how can I know which min and max values have been set after the plot is plotted?
I am plotting a 3d chart with kilometers on the axes, and I want to draw a circle in the origin, with a specific radius expressed in km, so I think I need to know how many kms fit into a known-sized canvas to get the right radius in pixel… Is this correct?