geojson2obj

GeoJSON to OBJ
==============

A converter from GeoJSON to
Wavefront OBJ format.

!hildedal-render

Trying it out

There's a small command line example in the examples directory, which you can use to try out the library.

Sample command line:

``
cd examples
./cli.js norway-coastline.geo.json
`

It should write an OBJ file to your stdout.

API

$3

Converts the geojson to an OBJ, that is written to the stream.
When done, the callback is called; callback is a normal Node.js callback
accepting an error as the first argument.

Note that the geojson must be a Feature or FeatureCollection.

Available options:

* featureBase: function f(feature, callback) that returns the height of
a feature's base; by default, a function that always returns 0.
* featureHeight: function f(feature, callback) that returns the height of
a feature; by default, a function that returns 10 for polygons and
0.3 for linestrings.
* lineWidth: for line geometries, returns the width of the generated
geometry; defaults to 2.
* featureName: a function f(feature, callback) that returns the OBJ group
name used for a feature; by default a function that numbers the
features
* featureMaterial: a function f(feature, callback) that returns the name
of the material for a feature; if undefined, the material is
not changed for this feature; see mtllib option below
* coordToPoint a function f(coordinate) that returns the
OBJ vertex point (X and Z) for a GeoJSON coordinate, needed to
convert from GeoJSON's WGS84 coordinates to a cartesian coordinate;
see the findLocalProj method below
* mtllib` a string or array of paths that will be added as material
libraries to the resulting OBJ