Which settings were used to generate contour data?

der-stefan / OpenTopoMap

A topographic map from OpenStreetMap and SRTM data

https://opentopomap.org

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Which settings were used to generate contour data? #271

Open blacklion opened 3 years ago

blacklion commented 3 years ago

I wonder, which setting were used to generate $DATA_DIR/dem/contours/contours-$continent.pbf? Is it SRTM1 or SRTM3 or VIEW data? Which step and simplifying options were used?

I cannot find options which was used in scripts, only options for hill shading data.

Thank you.

Artoria2e5 commented 3 years ago

The mapnik folder specifies http://viewfinderpanoramas.org/dem3.html. I think there might be some attribution that can be added about it, given the lots of curating that went into this model.