[Gvsig_english] find distances between point themes

[Wolfgang Qual]

Hi Alvaro,
I tried this, but an error occured:

null com.iver.cit.gvsig.geoprocess.core.fmap.GeoprocessException: Error al 
procesar los datos durante un spatial join     
com.iver.cit.gvsig.geoprocess.impl.spatialjoin.fmap.SpatialJoinGeoprocess$SpatialJoinMonitorableTask.run(Unknown 
Source)     
com.iver.utiles.swing.threads.MonitorableDecoratorMainFirst.run(MonitorableDecoratorMainFirst.java:152)     
com.iver.andami.PluginServices$1.construct(PluginServices.java:400)     
com.iver.utiles.swing.threads.SwingWorker$2.run(SwingWorker.java:108)     
java.lang.Thread.run(Unknown Source) null java.lang.NullPointerException: 
null     
com.iver.cit.gvsig.fmap.drivers.shp.IndexedShpDriver.getPositionForRecord(IndexedShpDriver.java:858)     
com.iver.cit.gvsig.fmap.drivers.shp.IndexedShpDriver.getShape(IndexedShpDriver.java:352)     
com.iver.cit.gvsig.fmap.layers.VectorialFileAdapter.getShape(VectorialFileAdapter.java:165)     
com.iver.cit.gvsig.geoprocess.impl.spatialjoin.fmap.SpatialJoinGeoprocess$SpatialJoinMonitorableTask.run(Unknown 
Source)     
com.iver.utiles.swing.threads.MonitorableDecoratorMainFirst.run(MonitorableDecoratorMainFirst.java:152)     
com.iver.andami.PluginServices$1.construct(PluginServices.java:400)     
com.iver.utiles.swing.threads.SwingWorker$2.run(SwingWorker.java:108)     
java.lang.Thread.run(Unknown Source)


Is there something I have to care about? The handbook (1.0) is very good, but 
it would be even better, if some more detailed information on geoprocessing 
(esp. spatial join: what is possible, how is it done) would be given there. 
Sometimes, I am fishing in the dark.... ;)

Best regards,
Wolfgang 



Am Montag 08 Oktober 2007 pH:45:16 nachmittags/abends schrieb Alvaro Zabala:
> gvSIG's spatial join function will add to each point feature of the first
> layer the attributes of the nearest feature of the second layer, and the
> distance between them.
>
> Best regards.
>
> Alvaro Zabala
>
> 2007/10/8, Wolfgang Qual <Wolfgang.Qual at gmx.net>:
> > Hi list,
> > is it possible to use gvSIG to calculate distances between points of
> > different point themes? I have just read this in an old ArcView book -
> > sounds interesting (they solved it with AV's spatial join function).
> >
> > Regards,
> > Wolfgang
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