Max Berger

Right, dist_to_middle/start is the shortest 8-connectivity walk to the edge. But this is only used for finding the start/end of the line (and by some means for the line itself,...

Just to show that it doesn't work in all cases: I tried it with a 100x100-grid instead of 25x25. Now the path between the islands has some "interesting" grid points....

I'll collect what we need for the next version: 1. A more robust and established algorithm to thinn out the grid ;) (thanks to @imagico. I did not think about...

I will try to use this kind of label for some kind of areas (collected in #170). But perhaps I should improve this labels first. In this issue here there...

> OpenMapTile also creates center labels They are using https://github.com/ungarj/label_centerlines and do a "ST_SimplifyPreserveTopology(geometry, 100)" for each lake and only for lakes with a size of 2*10^6 units... I have...

Not as a regular service, sorry. But if you need a sql file for testing, I can create a dump of lowzoom_lakelabel.

What do you mean with isolation text? Can you give an example? There should be no lower limit for the elevation, even [this peak with -175m](https://opentopomap.org/#map=16/31.09120/35.38387) and [that with +133m](https://opentopomap.org/#map=14/54.30350/10.56207)...

That doesn't depend on the height and is not related to the grid of the DEM. There are some rules to prevent labeling of short contour lines (search for "minimum-path-length"...

`select st_dump(st_split((select way FROM planet_osm_line where osm_id=23690734),(select st_union(way) from planet_osm_polygon where waterway='riverbank' and ST_Intersects(way,(select way FROM planet_osm_line where osm_id=23690734)))));` returns 3 parts of [way 23690734](http://www.openstreetmap.org/way/23690734), but without info, which of...

Just as a proof of concept: you could use something like [this funktion](http://geo.dianacht.de/tests/bankedrivers.sql) to get these parts of the Wiesent:  **But** * It's far too slow for...