Hi Yang,
Which version of GeoServer are you using, if there are two versions of
jts around that could be a problem. Yes, jts is embedded in GeoServer
and is the basis of the geotools geometry model.
Looking at the page you reference that appears to be some experimental
work which was performed a few years ago. I do not believe the function
"JTS_GETLENGTH" exists.
However, the function "geomLength" does exist, so if you replace
"JTS_GETLENGTH" with "geomLength" it should work ok. Let me know if it
works for you.
-Justin
yangzhaohui wrote:
Hello dear Justin,
I find in "geoserver\WEB-INF\lib" there are jts-1.7.1.jar and
jts-1.7.jar. And I have download a JTS,and run it successfully. Is JTS
has been embedded in Geoserver? Referrence to website
"http://docs.codehaus.org/display/GEOS/selectDerivedFeatureType" I have
made some code as below ,but didn't success.Could you please guide me to
know how to config Geoserver with JTS so that I can use JTS functions in
WFS filter? Thank you very much!
<ogc:Filter>
<ogc:PropertyIsBetween>
<Function name="JTS_GETLENGTH">
<PropertyName>geom</PropertyName>
</Function>
<ogc:LowerBoundary><ogc:Literal>0</ogc:Literal></ogc:LowerBoundary>
<ogc:UpperBoundary><ogc:Literal>150000</ogc:Literal></ogc:UpperBoundary>
</ogc:PropertyIsBetween>
</ogc:Filter>
Sincerely yours,
Yang
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The Open Planning Project
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