#!/usr/bin/python
#This script was written by Ralf Klammer, 24.10.2013
################################
#It demonstrates how to get more control of TopoJSON-geometries by
#manipulating the single arc-geometries and use them directly to build the GeoJSON-features
import json
import os
import subprocess
import time
from classes import checkArguments as check
import topojson_rk as topojson
input, output, feature = check.getIOFilesObject();
#topology = topojson.openTopoJSON('https://gist.github.com/milkbread/5957651/raw/81e3b548ab7873f3f80829e918ac5bd0da083a72/vg250_bld_krs_topo.json')
topology = topojson.openJSON(input)
arcs = topology['arcs']
objects = topology['objects']
topoTrans = topojson.Transformation(topology['transform'])
arcGeometries = topoTrans.getArcGeometries(arcs)
topoGeomBuilder = topojson.BuildGeometries(arcGeometries)
geoJSON = topoGeomBuilder.buildFeatures(objects[feature]['geometries'])
topojson.saveGeoJSON(geoJSON, output)
#!/usr/bin/python
#This script was written by Ralf Klammer, 24.10.2013
################################
#It demonstrates how to get more control of TopoJSON-geometries by
#manipulating the single arc-geometries and use them directly to build the GeoJSON-features
import json
import topojson_rk as topojson
#topology = topojson.openTopoJSON('https://gist.github.com/milkbread/5957651/raw/81e3b548ab7873f3f80829e918ac5bd0da083a72/vg250_bld_krs_topo.json')
topology = topojson.openJSON('data/vg250_bld_krs_topo.json')
arcs = topology['arcs']
objects = topology['objects']
topoTrans = topojson.Transformation(topology['transform'])
arcGeometries = topoTrans.getArcGeometries(arcs)
topoGeomBuilder = topojson.BuildGeometries(arcGeometries)
geoJSON = topoGeomBuilder.buildFeatures(objects['vg250_bld']['geometries'])
topojson.saveGeoJSON(geoJSON, 'result.geojson')