[Community] shapely: unable to get numpy array from linestring geometry

[Sean Gillies]

Matthew Perry wrote:
> Sean,
> 
>  Thanks for helping me out with this. I've printed the info below and
> attached my test shapefile....
> 
> 
> On 9/13/07, Sean Gillies <sgillies at frii.com> wrote:
>> Matthew Perry wrote:
>>> Any ideas why the linestring geometry is not properly converted to a
>>> numpy array?
>>  Can you give me more information? Print out
>>
>>    geom.geom_type
> 
> LineString
> 
>>    geom.coords
> 
> 
> <shapely.geometry.base.CoordinateSequence object at 0x8afc14c>
> 
> 
>>    line # should be a numpy array
> 
> LINESTRING (-118.1344542359263414 36.1719818088280292,
> -118.0363326316767854 36.3323268694309576, -118.2253962105966565
> 36.3514725483089194, -118.3043721359682365 36.6578034103562942,
> -118.1679591739627\
> 710 36.8205416808189625, -118.0578715204144942 36.8755855075931009,
> -118.0650511499937352 37.0024256301595926, -118.2253962105966565
> 37.1220861231468504, -118.5173678134855635 37.0861879752506738, -118.\
> 5317270726440313 37.0742219259519459, -118.5412999120830051
> 36.9617410625439291, -118.6657468247897640 36.8109688413799816,
> -118.8931017614655445 36.6841287188134899, -118.8931017614655445
> 36.4926719300\
> 338789, -118.9170338600630004 36.3131811905529958,
> -118.7064313924054204 36.2174527961631867, -118.6992517628261936
> 36.1336904510721055, -118.7878005276367617 36.0236027975238287,
> -119.0031894150138214 \
> 35.9518065017314754, -119.0031894150138214 35.9518065017314754,
> -118.9749086902324393 36.1107213805937803)
> 
>>    geom.__array_interface__
> 
> Traceback (most recent call last):
>   File "<stdin>", line 1, in <module>
>   File "/tmp/python-738I1s.py", line 272, in <module>
>     print geom.__array_interface__
>   File "build/bdist.linux-i686/egg/shapely/geometry/linestring.py",
> line 164, in __array_interface__
>   File "build/bdist.linux-i686/egg/shapely/geometry/linestring.py",
> line 144, in ctypes
> TypeError: unsupported operand type(s) for *: 'int' and 'NoneType'
> 
> 
>> before you print line[0]. Which of the alpha versions are you using?
>>
> 
> I'm using svn, revision 874. I had the same issue with alpha2.
> 

Matt,

I found and fixed a bug. Try updating to r875?

I'll be offline the rest of the day but will check in later tonight.

Cheers,
Sean