Dear all,
I am trying to use the Geoserver 2.5.2 default WPSes that work with raster
data. I need to retrieve the areas as FeatureCollection which have the band
value contained in a range. In order to extract these polygons i am using
the WPS process PolygonExtraction, but there's a problem with the result.
The process doesn't extract some areas which have their values in the range
and therefore should be included in the output. I have also tried with some
default Geoserver rasters as input but the problem is the same.
I have noticed that using the WPS RangeLookup with the same input (raster)
and selecting the same range of values, there's no problem. The reclassified
areas are the ones which have the values contained in the range, with no
exclusion. I have also tried to take the output of RangeLookup and use it as
the input of PolygonExtraction but the result is the same, some areas are
missing even though they should be extracted.
What could the problem be? Is there another way to accomplish what I am
trying to do?

I hope I made myself clear.
Thanks for the help.

Regards,
Matteo



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