I can not use <a> in that map because Leaflet handles the mouse over
before the anchors sees it, thus it is impossible to click on them; i
have to use a Leaflet layer.
Fortunately, i can just use the <path>’s coordinates as
the polygon points, because with CRS.Simple the coordinates map to
pixel, except for the reversed Y/latitude coordinate. Unfortunately,
<path> coordinates are not straightforward to get: I have to follow the
drawing coordinates, taking into account the current transformation
(CTM), and keeping the last point around for relative coordinates.
Bézier curves are simplified to a straight line from start to end.
There is one single accommodation that started with a relative move
command (m), which apparently have to be treated as an absolute
move (M), but subsequent pairs are treated as relative coordinates[0].
It was easier for me to convert that relative move to absolute and add
a relative lineto command (l) to the next pair.
For now, all i do is highlight the accommodation and zoom it on click,
because i do not know how i should the accommodation’s information.
[0]: https://www.w3.org/TR/SVG11/paths.html#PathDataMovetoCommands
