[Gvsig_english] gvSIG, geoprocesses, union - does not work for me!

[Wolfgang Qual]

Dear list,

I made several attempts to apply gvSIG's union function to two 
shapefiles. However, the process will end
in the middle, with the following error message in the console:

null java.lang.IllegalStateException: Can't overwrite cause 
    java.lang.Throwable.initCause(Throwable.java:320) 
    com.iver.cit.gvsig.exceptions.visitors.ProcessWriterVisitorException. 
(ProcessWriterVisitorException.java:11) 
    com.iver.cit.gvsig.fmap.edition.writers.shp.MultiShpWriter.getPointsWriter(MultiShpWriter.java:226) 
    com.iver.cit.gvsig.fmap.edition.writers.shp.MultiShpWriter.process(MultiShpWriter.java:242) 
    com.iver.cit.gvsig.geoprocess.core.fmap.FeaturePersisterProcessor2.processFeature(FeaturePersisterProcessor2.java:102) 
    com.iver.cit.gvsig.geoprocess.impl.intersection.fmap.IntersectVisitor$1.visit(IntersectVisitor.java:251) 
    com.iver.cit.gvsig.fmap.operations.strategies.ShpStrategy.process(ShpStrategy.java:731) 
    com.iver.cit.gvsig.fmap.operations.strategies.ShpStrategy.process(ShpStrategy.java:670) 
    com.iver.cit.gvsig.geoprocess.impl.intersection.fmap.IntersectVisitor.visit(IntersectVisitor.java:211) 
    com.iver.cit.gvsig.fmap.operations.strategies.DefaultStrategy.process(DefaultStrategy.java:398) 
    com.iver.cit.gvsig.geoprocess.impl.union.fmap.UnionGeoprocess$UnionMonitorableTask.run(UnionGeoprocess.java:378) 
    com.iver.utiles.swing.threads.MonitorableDecoratorMainFirst.run(MonitorableDecoratorMainFirst.java:155) 
    com.iver.andami.PluginServices$1.construct(PluginServices.java:405) 
    com.iver.utiles.swing.threads.SwingWorker$2.run(SwingWorker.java:108) 
    java.lang.Thread.run(Unknown Source) null 
java.lang.ClassCastException: 
com.hardcode.gdbms.engine.values.StringValue cannot be cast to 
com.hardcode.gdbms.engine.values.NumericValue 
    com.iver.cit.gvsig.fmap.drivers.shp.DbaseFileWriterNIO.fieldString(DbaseFileWriterNIO.java:259) 
    com.iver.cit.gvsig.fmap.drivers.shp.DbaseFileWriterNIO.write(DbaseFileWriterNIO.java:159) 
    com.iver.cit.gvsig.fmap.edition.writers.shp.ShpWriter.process(ShpWriter.java:302) 
    com.iver.cit.gvsig.fmap.edition.writers.shp.MultiShpWriter.process(MultiShpWriter.java:252) 
    com.iver.cit.gvsig.geoprocess.core.fmap.FeaturePersisterProcessor2.processFeature(FeaturePersisterProcessor2.java:102) 
    com.iver.cit.gvsig.geoprocess.impl.difference.fmap.DifferenceVisitor.visit(DifferenceVisitor.java:294) 
    com.iver.cit.gvsig.fmap.operations.strategies.DefaultStrategy.process(DefaultStrategy.java:398) 
    com.iver.cit.gvsig.geoprocess.impl.union.fmap.UnionGeoprocess$UnionMonitorableTask.run(UnionGeoprocess.java:399) 
    com.iver.utiles.swing.threads.MonitorableDecoratorMainFirst.run(MonitorableDecoratorMainFirst.java:155) 
    com.iver.andami.PluginServices$1.construct(PluginServices.java:405) 
    com.iver.utiles.swing.threads.SwingWorker$2.run(SwingWorker.java:108) 
    java.lang.Thread.run(Unknown Source) null 
java.lang.ClassCastException: 
com.iver.cit.gvsig.project.documents.table.gui.Table cannot be cast to 
com.iver.cit.gvsig.project.documents.view.gui.View 
    com.iver.cit.gvsig.geoprocess.core.fmap.AbstractGeoprocess.getResult(AbstractGeoprocess.java:201) 
    com.iver.cit.gvsig.geoprocess.core.gui.AddResultLayerTask.run(AddResultLayerTask.java:191) 
    com.iver.utiles.swing.threads.MonitorableDecoratorMainFirst.run(MonitorableDecoratorMainFirst.java:158) 
    com.iver.andami.PluginServices$1.construct(PluginServices.java:405) 
    com.iver.utiles.swing.threads.SwingWorker$2.run(SwingWorker.java:108) 
    java.lang.Thread.run(Unknown Source)

I do not know what causes this error. Any ideas?

Then, I tried to use the "union" function of sextante. But this will 
only creat a result for a very small part of the whole shapefile. Does 
sextante's union process work at all?

I am using gvSIG 1.10 on a linux machine.

All comments are welcome!

Best,
Wolfgang

-- 
Wolfgang Qual

Landeshauptstadt München
Referat für Gesundheit und Umwelt
Umweltschutz, Umweltvorsorge
RGU-UW 11
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