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stamen / terrain-classic

World-wide CartoCSS port of Stamen's classic terrain style
ISC License
144 stars 35 forks source link

switch to OSM peaks at higher zooms #55

Open almccon opened 8 years ago

almccon commented 8 years ago

The Natural Earth peaks aren't precise enough when you zoom in:

screen shot 2016-06-30 at 30 jun 7 21 47

But we should keep NE peaks at low zooms, because there are way too many OSM peaks and it's impossible to filter them well.

clhenrick commented 8 years ago

@almccon I remember that the number of OSM peaks in Switzerland overwhelmed / crowded the map. I don't remember there being an easy way to filter them either.

clhenrick commented 8 years ago

Right now NE peaks are being rendered at zooms 6+. Given the data accuracy / generalization is for a 1:10m scale I'm limiting them to zooms 4 - 9.

clhenrick commented 8 years ago

Unless we have a way to clean up garbage in the height_meters field for osm_mountain_peaks layer, we can't reliably filter. In #44 I posted a screen shot of the problem if they are left unfiltered:

osm peaks

Maybe Switzerland does a better job, but in CA there are a lot of garbage values for height.

screen shot 2016-07-05 at 2 37 53 pm