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

[Matthew Perry]

Sean,

 r875 did the trick. Thanks.

-m

On 9/13/07, Sean Gillies <sgillies at frii.com> wrote:
> 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
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-- 
Matthew T. Perry
http://www.perrygeo.net

"You never change things by fighting the existing reality.
To change something, build a new model that makes
the existing model obsolete" - R. Buckminster Fuller