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yaph / d3-geomap

A library for creating geographical maps based on D3.js
https://d3-geomap.github.io/
MIT License
133 stars 45 forks source link

Missing lakes make some maps look awkward #21

Closed yaph closed 9 years ago

yaph commented 10 years ago

Especially the US map without the great lakes. So find a way to incorporate lakes at least in country level maps, even better in all maps, i. e. the topojson sources.

yaph commented 10 years ago

Look into merging the lakes and admin/countries shapefiles with gdal http://www.gdal.org/drv_shapefile.html

A merge of two shapefiles 'file1.shp' and 'file2.shp' into a new file 'file_merged.shp' is performed like this:

% ogr2ogr file_merged.shp file1.shp
% ogr2ogr -update -append file_merged.shp file2.shp -nln file_merged

The second command is opening file_merged.shp in update mode, and trying to find existing layers and append the features being copied. The -nln option sets the name of the layer to be copied to.