Simple command line script to create UTFGrid json files from a polygon shapefile.
Usage:
$ ./create_utfgrids.py -h
Usage: create_utfgrids.py [options] shapefile minzoom maxzoom output_directory
Options:
-h, --help show this help message and exit
-f FIELDS, --fields=FIELDS
Comma-seperated list of fields; default is all
Example:
$ ./create_utfgrids.py test_data/bailey_merc.shp 3 5 ecoregions -f dom_desc,div_desc
WARNING:
This script assumes a polygon shapefile in spherical mercator projection.
If any of these assumptions are not true, don't count on the results!
* Processing Zoom Level 3
* Processing Zoom Level 4
* Processing Zoom Level 5
Inspect the output (for example, zoom level 5, X=20, Y=18)
$ cat ecoregions/5/20/18.json | python -mjson.tool
{
"data": {
"192": {
"div_desc": "RAINFOREST REGIME MOUNTAINS",
"dom_desc": "HUMID TROPICAL DOMAIN"
},
...
...
- Mapnik >= 2.0 with python bindings
- OGR python bindings