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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[MNT]: new public method to help title positioning","articleBody":"### Summary\r\n\r\n1. The change that broke #29381 would have been fine if the [logic that calculates `top` within `Axes._update_title_position`](https://github.com/matplotlib/matplotlib/blob/c11175d142403ff9af6e55ccb1feabccb990a7f6/lib/matplotlib/axes/_base.py#L3068-L3090) only needed to work for ordinary `Axes` instances.\r\n2. Cartopy has artists separate from the `XAxis` and `YAxis` which must be considered for title placement.  Currently, it does that by [overriding `_update_title_position`](https://github.com/SciTools/cartopy/blob/113be8ee587a6a57e20a5cc46bb27247b8f31fea/lib/cartopy/mpl/geoaxes.py#L511).  Overriding a private method is not ideal, neither is repeating some of the code that is already in the parent method.\r\n\r\n### Proposed fix\r\n\r\nFactor out a public method that returns `top`.  Making it public means it can safely be overridden in subclasses such as `PolarAxes` and Cartopy's `GeoAxes`.  Knowing it can/should be overridden in subclasses means that in the parent `Axes` we can use the most efficient approach that works for `Axes`.","author":{"url":"https://github.com/rcomer","@type":"Person","name":"rcomer"},"datePublished":"2024-12-29T15:06:57.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/29385/matplotlib/issues/29385"}