CityGML to OBJ
Takes a CityGML file and creates an OBJ file for each building
Usage
bash:
npm install citygml-to-obj
javascript:
var citygml2obj = ; var options = // Path to CityGML input file citygmlPath: "/path/to/some.gml" // Path to OBJ output directory objPath: "/path/for/obj/output/" // Used to project CityGML coords to WGS84 // This projection is an example for the Berlin CityGML dataset proj4def: "+proj=utm +zone=33 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs" // Overwrite existing OBJ files if they already exist overwrite: false // API key for the Mapzen Valhalla elevation endpoint valhallaKey: "your_api_key"; ;
Example output
# Generated using the polygons-to-obj package
# Origin: (393408.81326613, 35.3899993896484, 5820431.70758075)
v 0 0 0
v 0.0007680089911445975 35.8840621565621 -0.0011349096894264221
v -1.3537642270093784 35.8840621565621 1.3126991000026464
v -1.3545322350109927 0 1.3138340096920729
# Etc...
f 5 3 4
f 3 5 2
f 10 8 9
f 8 10 7
# Etc...