[gdal-dev] Changing precision of coordinates in Python OGR API

Roger André randre at gmail.com
Wed Aug 17 01:53:36 EDT 2011


Thanks Chaitanya,

I like the look of that second option.  If I understand correctly what Even
says, I should then be able to call the *ExportToWKT() *method with a
precision parameter?

Roger
--

On Tue, Aug 16, 2011 at 10:36 PM, Chaitanya kumar CH <chaitanya.ch at gmail.com
> wrote:

> Roger,
>
> OGR doesn't support control of coordinate precision. You need to do this
> yourselves.
> You can get the WKT of the geometry and and edit the string. If you are
> willing to recompile GDAL/OGR, you can modify the code that creates the WKT.
> Even wrote how to do this in this mailing list [1].
>
> [1]: http://lists.osgeo.org/pipermail/gdal-dev/2011-April/028306.html
>
> On Wed, Aug 17, 2011 at 5:21 AM, Roger André <randre at gmail.com> wrote:
>
>> Hi All,
>>
>> I have an assignment that requires me to truncate the precision of all my
>> polygon coordinates to 6 decimal places.  Is there an easy way to do this
>> while I have the feature opened with OGR and can access its ogr.Geometry
>> directly?  If not, can someone recommend a good way to iterate through each
>> coordinate in a feature in such a way that I can treat it as a string and
>> format it?
>>
>> Thanks,
>>
>> Roger
>>
>> _______________________________________________
>> gdal-dev mailing list
>> gdal-dev at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/gdal-dev
>>
>
>
>
> --
> Best regards,
> Chaitanya kumar CH.
>
> +91-9494447584
> 17.2416N 80.1426E
>
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