Re: GDALNumeric.SaveArray : Unable to access numpy arrays of typecode "@"

Gillian,

Thankyou very much..
IT WORKED..!!!

Gagan


> From: Gillian Walter <gillian.walter@xxxxxxxxxxxxxxxxxxxxxxx>
> Reply-To: gdal-dev@xxxxxxxxxxxxxxxxx
> To: gdal-dev@xxxxxxxxxxxxxxxxx
> Subject: Re: [Gdal-dev] GDALNumeric.SaveArray : Unable to access numpy 
> arrays of typecode "@"
> Date: Fri, 26 Sep 2003 10:50:44 -0400
>
> Hi,
>
> I had the same problem.  This was Frank's response (his -DHAVE_NUMPY 
> solution worked for me):
>
> This might be an issue with how GDAL is built on windows.  If GDAL doesn't
> "know" how to find Numeric/arrayobject.h to get at the definitions of
> the PaArray_Descr and PyArrayObject structures it just falls back to using
> internal declarations for these presumably copied from an earlier version
> of Python.  To the best of my knowledge the internal (out of date) 
> definitions
> are always used on windows.
>
> Try adding -DHAVE_NUMPY to OPTFLAGS in nmake.opt and see if things work.
>
> The easiest way to verify you are getting system definitions of the numpy
> stuff would be to add a #error directive in the "#ifndef HAVE_NUMPY" 
> section
> of gdal/pymod/gdal_py.h.
>
> - Gillian
>
> Gagan Tandon wrote:
>
> > Dear Friends,
> >
> > I am using Numeric 23.0 version and python 2.3 on a windows XP machine. I 
> > have build GDAL from MS VC++ and Visual Studio .net and installed on my 
> > machine. The GDAL version is 1.1.9.
> >
> > Basic Problem : I am trying to save a Numpy array(infact the primary issue 
> > is to save any 2d array (not just NUMPY) to a "TIF" file) to a TIF file. 
> > When I run the following commands, I get an error stating that it cannot 
> > access Numpy array of typecode "@"  (weird..??)
> >
> > DUMP OF PYTHON INTERPRETER.
> >
> > >>> k = Numeric.zeros((2,2),"f")
> >
> > >>> k
> > array([[ 0.,  0.],
> >        [ 0.,  0.]],'f')               // I have tried with array k = 
> > array([[1.2, 2.3], [2.5,1.7]],"f")
> >
> >
> > >>> import gdalnumeric
> >
> > >>> gdalnumeric.SaveArray(k,"k.tif")
> > ERROR 1: Unable to access numpy arrays of typecode `@' <mailto:%60@%27>.
> >
> > Traceback (most recent call last):
> >   File "<stdin>", line 1, in ?
> >   File "C:\GDAL\pymod\gdalnumeric.py", line 97, in SaveArray
> >     return driver.CreateCopy( filename, OpenArray(src_array,prototype) )
> >   File "C:\GDAL\pymod\gdal.py", line 330, in CreateCopy
> >     target_ds = _gdal.GDALCreateCopy( self._o, filename, source_ds._o,
> > AttributeError: 'NoneType' object has no attribute '_o'
> >
> > ---- END OF PYTHON INTERPRETER
> >
> > I am wondering whether this is a version problem with Numeric python or is 
> > it a problem with the building of GDAL using MS VC++ 7.0  or is it 
> > something else. I would be delighted if any one can give me clues on how 
> > to save a 2d array to a TIF file, since thats the primary problem.
> >
> > Thanks
> >
> > Gagan Tandon
> >
> > ------------------------------------------------------------------------
> > ------------------------------------------------------------------------
> >
> > Gagan Tandon
> > Research Assistant
> > GIS and Remote Sensing
> > Colorado State University
> >
> > ------------------------------------------------------------------------
> > ------------------------------------------------------------------------
> >
> > ------------------------------------------------------------------------
> > Attention all artisans! Sell Diwali creations online. Register now! 
> > <http://g.msn.com/8HMAENIN/2734??PS=> 
> > _______________________________________________ Gdal-dev mailing list 
> > Gdal-dev@xxxxxxxxxxxxxxxxx 
> > http://remotesensing.org/mailman/listinfo/gdal-dev
>
>
>
> _______________________________________________
> Gdal-dev mailing list
> Gdal-dev@xxxxxxxxxxxxxxxxx
> http://remotesensing.org/mailman/listinfo/gdal-dev







PLEASE SEND ANY HEAVY ATTACHMENT LOADED EMAILS TO THIS EMAIL ID: 
gagan@xxxxxxxxxxxxxxxxx
THANKS
Gagan Tandon
Graduate Student                     Research Assistant
Computer Science                   GIS and Remote Sensing
Colorado State University
1500 W Plum Street
Apt 1-I
Fort Collins,CO
ZIP 80521, USA
Phone (R) : (970)-492-9487

_________________________________________________________________
Contact brides & grooms FREE! http://www.shaadi.com/ptnr.php?ptnr=hmltag 
Only on www.shaadi.com. Register now!