Optimize 3D data limits calculation by simplifying direct updates to dataLim #28998
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@Thierno88 do you mean #28444 instead of #28403? |
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This only proposes set_datalim_x/y/z() and corresponding properties datalim_x/y/z. I does not show how this is integerated with the current code, i.e. the auto limits, which #28444 is primarily about. I'm not convinced this new API is helping with that (or maybe I'm just not seeing it, because that part is not implemented here).
I'm also a bit sceptical to introduce z-information in the basic Artist. So far, the main matplotlib code is all 2D and 3D aspects are limited to mpl_toolkits.mplot3d.
This pull request addresses the inefficiency in updating 3D dataLim for plots in Matplotlib by eliminating unnecessary data processing and copying. Instead of creating a new _Bbox3d class, this PR introduces methods to directly compute and update the X, Y, and Z data limits using individual functions for each axis (get_datalim_x, get_datalim_y, get_datalim_z). This simplifies the code and improves performance by reducing the overhead of manipulating large data structures.
The change allows for direct updates of dataLim within the plotting logic, making the process of auto-scaling more efficient. This resolves the same core problem as discussed in issue #28403 but with a different approach, focusing on minimal code changes and improved performance.
PR Checklist:
closes FIX: Autoscale support in add_collection3d for Line3DCollection and Poly3DCollection #28403
New and changed code is tested to ensure accuracy and robustness.