[gdal-dev] Unable to identify feature at selected position with gdal.1.11 with geos-3.4.2

Thu Jul 31 02:43:01 PDT 2014

Pratap,

Obviously only the first of the five polygons should be identified. I
tested with postgis using geos with version "3.4.2-CAPI-1.8.2 r3921".

So, the issue is probably not with geos. Please tell me if you find
any solution to the issue.

On Thu, Jul 31, 2014 at 1:51 PM, Pratap Chelamilla
<pratap.chelamilla at amigooptima.in> wrote:
> Hi Chaitanya,
>
> 82.4626 23.0721 0.00202492
>
>
> geometry->exportToWkt(&aftertrans)
>
> aftertrans POLYGON ((82.123893241937822
> 23.126845863962984,82.381596352429924 23.475093310573939,82.646264411854261
> 23.259179893675146,82.715913901176449 22.813423162013123,82.388561301362145
> 22.820388110945341,82.388561301362145 22.820388110945341,82.123893241937822
> 23.126845863962984))
>
>
> geometry->exportToWkt(&aftertrans)
>
> aftertrans POLYGON ((83.516883028381642
> 22.653229336572082,83.886025321789262 22.778598417352029,84.192483074806901
> 22.096033421994552,83.844235628195946 22.033348881604581,83.816375832467074
> 22.054243728401239,83.516883028381642 22.653229336572082))
>
>
> geometry->exportToWkt(&aftertrans)
>
> aftertrans POLYGON ((83.379917111984923
> 23.359672759378359,83.685680326555683 23.373847213033955,83.701879702162074
> 23.361697681329158,83.560135165606098 23.16933009600319,83.333343907116543
> 23.140981188691995,83.379917111984923 23.359672759378359))
>
>
> geometry->exportToWkt(&aftertrans)
>
> aftertrans POLYGON ((82.748141463335443
> 22.592227340025289,83.064029287660176 22.772445393646457,83.185524604708164
> 22.569953198566491,83.084278507168179 22.357336393732528,82.729917165778232
> 22.367461003486525,82.748141463335443 22.592227340025289))
>
>
> geometry->exportToWkt(&aftertrans)
>
> aftertrans POLYGON ((82.814963887711826
> 23.064034154561607,83.185524604708164 23.151105798445993,83.213873512019362
> 22.991136964332821,82.997206863283793 22.962788057021626,82.997206863283793
> 22.962788057021626,82.814963887711826 23.064034154561607))
>
>
> selected Feature 5
>
>
>
> If i select any feature it is selecting the last created feature i.e feature
> 5.
>
>
>
>
>
>
>
>
>
>
>
>
>
> On Thu, Jul 31, 2014 at 11:42 AM, Chaitanya kumar CH
> <chaitanya.ch at gmail.com> wrote:
>>
>> Pratap,
>> Provide the EWKT of a set of geometry(after transform) and geom that are
>> failing.
>>
>>
>> On Thu, Jul 31, 2014 at 11:14 AM, Pratap Chelamilla
>> <pratap.chelamilla at amigooptima.in> wrote:
>>>
>>> Hi Chaitanya,
>>>
>>> yes, this is happening for every data source,
>>>
>>>
>>>     OGRFeature* feature = poLayer->GetFeature(shapeList[loop]);
>>>            OGRGeometry* geometry = feature->GetGeometryRef();
>>>             if (cordinateTransform)
>>>                 geometry->transform(cordinateTransform);
>>>             OGRGeometry* geom = point->Buffer(tDelta);
>>>
>>>             if(geometry->Contains(geom)|| geometry->Intersects(geom)||
>>> geometry->Equals(geom))
>>>             {
>>>                 identifiedRecordIndex = feature->GetFID();
>>>             }
>>>
>>>
>>> It is working with the earlier version of gdal,After checking the
>>> condition it is not going in.
>>>
>>>
>>>
>>> On Thu, Jul 31, 2014 at 10:26 AM, Chaitanya kumar CH
>>> <chaitanya.ch at gmail.com> wrote:
>>>>
>>>> Pratap,
>>>>
>>>> Can you provide a code snippet? Is this happening for every data source?
>>>> How far is the other feature? Is the distance consistent?
>>>>
>>>>
>>>> On Wed, Jul 30, 2014 at 5:58 PM, pratap chelamilla
>>>> <pratap.chelamilla at amigooptima.in> wrote:
>>>>>
>>>>> Hi ,
>>>>>
>>>>> Unable to identify feature at selected Position,Earlier Version of gdal
>>>>> 1.9
>>>>> with geos-3.1.1 Working fine, But I have build the newer version
>>>>> gdal-1.11
>>>>> with geos-.3.4.2, It is identifying the feature but not exactly at the
>>>>> same
>>>>> place, it is showing feature from different position.
>>>>>
>>>>>
>>>>> There's some special thing I should be doing? I'd appreciate any help.
>>>>>
>>>>> Thank you very much in advance.
>>>>>
>>>>> GDAL_VER='1.11.0'
>>>>> GDAL_VERSION_MAJOR='1'
>>>>> GDAL_VERSION_MINOR='11'
>>>>> GDAL_VERSION_REV='0'
>>>>> GEOS_CFLAGS='-I/d/gdal/geos-3.4.2_build/include'
>>>>> GEOS_CONFIG='/d/gdal/geos-3.4.2_build/bin/geos-config'
>>>>> GEOS_LIBS='-L/d/gdal/geos-3.4.2_build/lib -lgeos_c'
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Regards,
>>>>> Pratap.
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> View this message in context:
>>>>> http://osgeo-org.1560.x6.nabble.com/Unable-to-identify-feature-at-selected-position-with-gdal-1-11-with-geos-3-4-2-tp5154190.html
>>>>> Sent from the GDAL - Dev mailing list archive at Nabble.com.
>>>>> _______________________________________________
>>>>> 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
>>>
>>>
>>>
>>>
>>> --
>>> Regards,
>>> Pratap.
>>
>>
>>
>>
>> --
>> Best regards,
>> Chaitanya kumar CH.
>>
>> +91-9494447584
>> 17.2416N 80.1426E
>
>
>
>
> --
> Regards,
> Pratap.

-- 
Best regards,
Chaitanya kumar CH.

+91-9494447584
17.2416N 80.1426E