[Tile-serving] [openstreetmap/osm2pgsql] WORK IN PROGRESS: Add pole_of_inaccessibility() function in Lua for polygons (PR #1822)

[Jakob Miksch]

@JakobMiksch commented on this pull request.



> + *
+ * Copyright (C) 2006-2022 by the osm2pgsql developer community.
+ * For a full list of authors see the git log.
+ */
+
+#include "geom.hpp"
+
+namespace geom {
+
+/**
+ * Finding the "pole of inaccessibility", the most distant internal point from
+ * the polygon outline, or center of the maximum inscribed circle.
+ *
+ * \param polygon The input polygon
+ * \param precision Used as cutoff in the recursive algorithm. A minimum cutoff
+ *        is also set at max(width, height) of the polygo envelope / 1000.0.

```suggestion
 *        is also set at max(width, height) of the polygon envelope / 1000.0.
```

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