Thanks I know it. It doesn't work for geographical polygons with longitude
and longitude. You have project them on a plane before calculating distance
28.08.2014 9:18 пользователь "sunish" <sunish.ku...@gmail.com> написал:
>
> http://www.vividsolutions.com/jts/javadoc/com/vividsolutions/jts/operation/distance/DistanceOp.html#closestPoints%28com.vividsolutions.jts.geom.Geometry,%20com.vividsolutions.jts.geom.Geometry%29
>
> Will return the closest points in two geometries.
>
>
> On Thu, Aug 28, 2014 at 10:44 AM, Serega Sheypak <serega.shey...@gmail.com
> > wrote:
>
>> It doesn't work for polygons
>> 28.08.2014 9:11 пользователь "sunish" <sunish.ku...@gmail.com> написал:
>>
>> Have you tried the GeodeticCalculator?
>>>
>>>
>>> http://docs.geotools.org/latest/userguide/library/referencing/calculator.html
>>>
>>>
>>> On Thu, Aug 28, 2014 at 12:32 AM, Serega Sheypak <
>>> serega.shey...@gmail.com> wrote:
>>>
>>>> I know it :)
>>>> All Geometry objects have coordinates in degrees (longitude, latitude),
>>>> since it's a WSG_84 shape file. You can't use distance method because it
>>>> works only for "planar" objects, correctly projected on 2D sufrace.
>>>>
>>>>
>>>> 2014-08-27 20:26 GMT+04:00 sunish <sunish.ku...@gmail.com>:
>>>>
>>>> SimpleFeatureIterator it = features.features();
>>>>>
>>>>> while (it.hasNext()) {
>>>>> SimpleFeature f = it.next();
>>>>> Geometry geom = f.getDefaultGeometry();
>>>>> }
>>>>> it.close();
>>>>>
>>>>> Geometry has function distance(Geometry geom2);
>>>>>
>>>>>
>>>>> http://www.vividsolutions.com/jts/javadoc/com/vividsolutions/jts/geom/Geometry.html
>>>>>
>>>>>
>>>>> http://www.vividsolutions.com/jts/javadoc/com/vividsolutions/jts/geom/Geometry.html#distance%28com.vividsolutions.jts.geom.Geometry%29
>>>>>
>>>>>
>>>>>
>>>>> On Wed, Aug 27, 2014 at 3:45 PM, Serega Sheypak <
>>>>> serega.shey...@gmail.com> wrote:
>>>>>
>>>>>> Hi, I have a several multiplogons loaded from shp file
>>>>>> I'm usng import org.geotools.data.DataStore to load multipolygons and
>>>>>> SimpleFeatureCollection features = featureSource.features to iterate
>>>>>> over loaded geometries.
>>>>>> My geometries have longitude, latitude coordinates.
>>>>>>
>>>>>> I want to calculate distance between my multipolygons and get result
>>>>>> in meters. If multipolygons intersects, distance should be 0.0 meters.
>>>>>>
>>>>>> I have a mess in my head, I've tried to use
>>>>>> http://docs.geotools.org/latest/tutorials/geometry/geometrycrs.html
>>>>>>
>>>>>> but it uses deprecated classes.. Can you give me some link to read
>>>>>> how to do it in Java?
>>>>>>
>>>>>>
>>>>>>
>>>>>> ------------------------------------------------------------------------------
>>>>>> Slashdot TV.
>>>>>> Video for Nerds. Stuff that matters.
>>>>>> http://tv.slashdot.org/
>>>>>> _______________________________________________
>>>>>> GeoTools-GT2-Users mailing list
>>>>>> GeoTools-GT2-Users@lists.sourceforge.net
>>>>>> https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> ------------------------------------------------------------------------------
>>>>> Slashdot TV.
>>>>> Video for Nerds. Stuff that matters.
>>>>> http://tv.slashdot.org/
>>>>> _______________________________________________
>>>>> GeoTools-GT2-Users mailing list
>>>>> GeoTools-GT2-Users@lists.sourceforge.net
>>>>> https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
>>>>>
>>>>>
>>>>
>>>
>
------------------------------------------------------------------------------
Slashdot TV.
Video for Nerds. Stuff that matters.
http://tv.slashdot.org/
_______________________________________________
GeoTools-GT2-Users mailing list
GeoTools-GT2-Users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
