How did you build the topojson files ?

thole / cycleways

compares the cycleways of cities

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How did you build the topojson files ? #1

Open ghost opened 6 years ago

ghost commented 6 years ago

Hi, Thanks for sharing ! I am wondering how did you extracted the cycleways from the osm file ? Did you build the topojson yourself ? Thank you

thole commented 6 years ago

Hi NaniBird, the extraction of cycleways from the osm data is defined in the Makefile. Is used ogr2ogr (gdal) to extract alle cylceways from the osm data and convert them to geojson. In the next step i converted the geojson file to topojson. The steps and the tools are described in an article by Mike Bostock (https://bost.ocks.org/mike/map/). Please feel free to contact me if you have any further questions.