Re: [geowave-dev] SpatialQuery CompareOperations

[Jose M <soloninguno@xxxxxxxxxxx>]

Hi Eric,

Thanks for the advice. Any chance you can show me an example that uses a WITHIN (or any of the other operators) with CQLQuery? Cause I'm testing CQLQuery and is not working for me, and all the available examples in geowave github use BBOX, so i think i'm using it wrongly.

Not even works with CONTAINS in my case.  For example I have only this feature/polygon stored (a square)

-24.88987361,-47.88764954
-24.98669082,-47.88764954
-24.98669082,-48.02909851
-24.88987361,-48.02909851

-24.88987361,-47.88764954

Then i want to find the features that contains this point (it's in the center of the polygon)

-24.9204948,-47.9535657

I create the CQLQuery like this

new CQLQuery("CONTAINS(geometry, POINT (-47.9535657 -24.9204948))", featureDataAdapter);

But the query return no results. If I use the EverythingQuery the features is return ok, so it's seems not to be a problem with the adapter used.

Thanks!

---

De: geowave-dev-bounces@xxxxxxxxxxxxxxxx <geowave-dev-bounces@xxxxxxxxxxxxxxxx> en nombre de Eric Robertson <rwgdrummer@xxxxxxxxx>
Enviado: viernes, 26 de febrero de 2016 09:30 p.m.
Para: geowave-dev
Asunto: Re: [geowave-dev] SpatialQuery CompareOperations

 

The CompareOperation.CONTAINS is an optimization for 'within a range' type search. 
See executePolygonAndTimeRangeQuery in  mil.nga.giat.geowave.examples.queryGeoTemporalQueryExample

To gain full use of those operators, use mil.nga.giat.geowave.adapter.vector.query.cql.CQLQuery.

See:  examples/src/main/java/mil/nga/giat/geowave/examples/query/SpatialQueryExample.java

 

On Fri, Feb 26, 2016 at 6:14 PM, Jose M <soloninguno@xxxxxxxxxxx> wrote:

Hi again,

I was looking at the CompareOperations in SpatialQueryFilter and seems they use the JTS Geometry compare methods.

As I see, only CONTAINS and OVERLAPS are implemented (in facts don't know why but OVERLAPS uses interesect instead of overlaps Geometry method).

Can the other methods be used (coveredBy, covers, crosses, disjoint, equals, intersect, touches, within)?

I can update the SpatialQueryFilter code adding new enums to CompareOperations on my own, just want to know if I need to consider something else. Don't know if they were not implemented because missing time, or for some incompatibility with geowave.

Thanks!

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