Python minify json code#

Full example $ minify-geojson -ktiv -w 'property1, property2 ' -c 5 original. Filter based on properties $ minify-geojson -ktv -r 28992 -f 'WATER = NO, CITY=Amsterdam ' -b 'WATER, CITY 'ġ0. Reproject shape file in RD (EPSG:28992) $ minify-geojson -ktv -r 28992 original.shpĠ9. Convert output to topojson (-i and -c $ minify-geojson -kt original.geojsonĠ8. Add the key mapping to the output $ minify-geojson -ki original.geojsonĠ7. Removes superfluous decimals (keep $ minify-geojson -c 5 original.geojsonĠ6. Keep the whitelisted properties $ minify-geojson -w 'property1, property2 'Ġ5. Prune the blacklisted properties $ minify-geojson -b 'property1, property2 'Ġ4. A verbose version $ minify-geojson -kv original.geojsonĠ3. Shrink property keys and output to $ minify-geojson -k original.geojsonĠ2. s, -src File names Source files to process: default option, you do not need toĠ1. d, -decimals Positive number Only keep the first n digits of each decimal property. c, -coordinates Positive number Only keep the first n digits of each coordinate. w, -whitelist String Comma separated list of properties that should be kept Note that keys will notīe minified unless the -k flag is used too. b, -blacklist String Comma separated list of properties that should be KEEP those features when the property filter returns f, -filter String Comma separted list of property filters, which will r, -reproject String Reproject to WGS84 by supplying the input EPSG t, -topo Boolean Output format is TopoJSON instead of GeoJSON. To get the most compact JSON representation, you should specify (',', ':') to eliminate whitespace. The default is (', ', ': ') if indent is None and (',', ': ') otherwise. i, -includeKeyMap Boolean Add the key map to the GeoJSON file. From the docs: If specified, separators should be an (itemseparator, keyseparator) tuple. k, -keys Boolean Minify property keys, e.g.

Python minify json code#

If you wish to reproject to WGS84, you can supply the EPSG code Whitelist and blacklist or filter certain properties. You can also reduce the number of decimals for coordinates and properties, Minify (compress) each input GeoJSON or ESRI shapefile by replacing theĪttribute keys with a shorter representation (typically, its first letter). That's why it normally uses a streaming mode, so also large files can be processed easily (after which you can try reprojecting it again). In case your GeoJSON file is too large for node.js to handle, this may fail. The tool works in two modes: for files that require reprojection or topojson output, it will read in all data at once. only keep those features whose properties satisfy certain conditions. Warning: If you already have property keys like a or b, it may map them to the wrong name. Minify the length of the keys by mapping each key name to a single or double letter combination: option -k converts long property keys such as my_long_property_name to a or ab.Reducing the number of decimals used for coordinates: option -c 5 to keep 5 decimals.A small tool to minify (compress) a GeoJSON file by: