Defining projection

[sephib]

Firstly please let me say that this is a great project!

Problem description (what did you do, what did you expect to happen, and what actually happened)

Trying to use the project functionality with a different datum.
currently the default is NAD83
{'datum': 'NAD83', 'ellps': 'GRS80', 'proj': 'utm', 'units': 'm', 'wktext': True, 'zone': 36}
I would like to project to a EPSG:32636 projection

Trying to run

places_prj = ox.project_gdf(places_il,  32636)
places_prj = ox.project_gdf(places_il,  '32636')
places_prj = ox.project_gdf(places_il,  'epsg:32636')

places_prj.crs always returns
{'init': 'epsg:4326'}

any ideas? any suggestion ?
should I try and extend osmnx/projection.py ? if so how would you do so?

What operating system, architecture, Python version, and OSMnx version are you using?

running on Win10

Complete list of your environment's packages and their versions (for example, run conda list or pip list then paste the output below)

python 3.5

bleach (1.5.0)
click (6.7)
click-plugins (1.0.3)
cligj (0.4.0)
colorama (0.3.7)
cycler (0.10.0)
decorator (4.0.11)
descartes (1.1.0)
entrypoints (0.2.2)
Fiona (1.7.1)
folium (0.2.1)
GDAL (2.1.2)
geopandas (0.2.1)
geopy (1.11.0)
html5lib (0.9999999)
imageio (1.6)
ipykernel (4.5.2)
ipython (5.1.0)
ipython-genutils (0.1.0)
ipywidgets (5.2.2)
Jinja2 (2.9.4)
jsonschema (2.5.1)
jupyter (1.0.0)
jupyter-client (4.4.0)
jupyter-console (5.0.0)
jupyter-core (4.2.1)
MarkupSafe (0.23)
matplotlib (2.0.0)
mistune (0.7.3)
moviepy (0.2.2.11)
munch (2.1.0)
nbconvert (5.1.1)
nbformat (4.2.0)
networkx (1.11)
notebook (4.3.1)
numpy (1.11.3)
olefile (0.44)
osmnx (0.2.2)
pandas (0.19.2)
pandocfilters (1.4.1)
pickleshare (0.7.4)
Pillow (4.0.0)
pip (9.0.1)
prompt-toolkit (1.0.9)
Pygments (2.1.3)
pyparsing (2.1.10)
pyproj (1.9.5.1)
python-dateutil (2.6.0)
pytz (2016.10)
pyzmq (16.0.2)
qtconsole (4.2.1)
requests (2.13.0)
Rtree (0.8.3)
setuptools (32.3.1)
Shapely (1.5.17)
simplegeneric (0.8.1)
simplekml (1.3.0)
six (1.10.0)
testpath (0.3)
tornado (4.4.2)
tqdm (4.11.0)
traitlets (4.3.1)
wcwidth (0.1.7)
wheel (0.30.0a0)
widgetsnbextension (1.2.6)
win-unicode-console (0.5)

[gboeing]

If you look at the documentation for project_gdf() you'll see the function projects a GeoDataFrame to UTM (with the zone calculated based on the GeoDataFrame's centroid) or back to lat-lng.

If might be useful to modify osmnx/projection.py to have project_gdf() take a new argument crs with default value None. If it's None, then the function behaves as it currently does. If it's not None then the function passes this crs into the geopandas projection function.

That said, in the meantime you can take your GeoDataFrame places_il and project it with geopandas to any CRS that you'd like.

[sephib]

Thx - Will update

[gboeing]

Thanks. Feel free to issue a PR if you make these modifications.

[gboeing]

Resolved by dd38c57

[gboeing]

Documentation of the new projection abilities is available here