Support 'Lambert_Conformal_Conic_2SP'

[dazza-codes]

http://geotiff.maptools.org/proj_list/lambert_conic_conformal_2sp.html

An error related to this arose while trying to parse WKT, e.g.
http://spatialreference.org/ref/esri/102740/ogcwkt/

>>> esri_102740_ogc_wkt = 'PROJCS["NAD_1983_StatePlane_Texas_South_Central_FIPS_4204_Feet",GEOGCS["GCS_North_American_1983",DATUM["North_American_Datum_1983",SPHEROID["GRS_1980",6378137,298.257222101]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["False_Easting",1968500],PARAMETER["False_Northing",13123333.33333333],PARAMETER["Central_Meridian",-99],PARAMETER["Standard_Parallel_1",28.38333333333333],PARAMETER["Standard_Parallel_2",30.28333333333334],PARAMETER["Latitude_Of_Origin",27.83333333333333],UNIT["Foot_US",0.30480060960121924],AUTHORITY["EPSG","102740"]]'

>>> pycrs.parse.from_ogc_wkt(esri_102740_ogc_wkt)
...
  File "/home/joe/miniconda3/envs/gis-dataprocessing/lib/python3.7/site-packages/pycrs/parse.py", line 303, in _parse_top
    raise NotImplementedError("Unsupported projection: The specified projection name %r could not be found in the list of supported projections" % projname)
NotImplementedError: Unsupported projection: The specified projection name 'Lambert_Conformal_Conic_2SP' could not be found in the list of supported projections

[dazza-codes]

See also http://spatialreference.org/ref/epsg/2278/

>>> pycrs.parse.from_epsg_code(2278)
Traceback (most recent call last):
  File "<console>", line 1, in <module>
  File "/home/joe/miniconda3/envs/gis-dataprocessing/lib/python3.7/site-packages/pycrs/parse.py", line 40, in from_epsg_code
    crs = from_proj4(proj4)
  File "/home/joe/miniconda3/envs/gis-dataprocessing/lib/python3.7/site-packages/pycrs/parse.py", line 696, in from_proj4
    unit.metermultiplier.value = partdict["+to_meter"]
AttributeError: 'Unknown' object has no attribute 'metermultiplier'

[karimbahgat]

Would be happy to add Lambert Conformal Conic 2SP as a supported projection.

I don't have time to research this myself, but I could easily implement it if someone provides the official name for this projection in:

• proj4
• ogc wkt
• esri wkt

And check if the projection has any wider implication, such as altering the values of other parameters. Here's a link that discusses the projection:
https://trac.osgeo.org/gdal/ticket/5191