Thanks
Emilio,
I have not
tried your maven scala console yet, but I have tried
some other things and have some more information.
First, I am
using Accumulo 1.6.5 and GeoTools 14.2
I am now
using a simple box for my MultiPolygon and it still
fails. The box is just some random coordinates that
appear over the United States.
I tried
re-implementing the query using Java and without Spark
and I am getting the same results. The code is as
follows:
Point pnt =
JTSFactoryFinder.getGeometryFactory().createPoint(new
Coordinate(0.0,10.0));
FilterFactory2 ff =
CommonFactoryFinder.getFilterFactory2();
Filter f =
ff.contains(ff.property("the_geom"), ff.literal(pnt));
Query q = new
Query(“FeatureName”, f);
AccumuloFeatureStore
featureStore =
(AccumuloFeatureStore)dataStore.getFeatureSource(“FeatureName”);
SimpleFeatureCollection results
= featureStore.getFeatures(q);
System.out.println(results.isEmpty());
Here is my
stack trace. Strangely, using this method I get the
error even with non-zero coordinates if they are outside
my polygon. Not sure why this wasn’t the case before.
Exception
in thread "main" java.lang.IllegalStateException: getX
called on empty Point
at
com.vividsolutions.jts.geom.Point.getX(Point.java:124)
at
org.locationtech.geomesa.utils.geohash.GeohashUtils$.considerCandidate$1(GeohashUtils.scala:1023)
at
org.locationtech.geomesa.utils.geohash.GeohashUtils$.getUniqueGeohashSubstringsInPolygon(GeohashUtils.scala:1043)
at
org.locationtech.geomesa.accumulo.index.GeoHashPlanner$class.geomToGeoHashes(QueryPlanners.scala:340)
at
org.locationtech.geomesa.accumulo.index.GeoHashKeyPlanner.geomToGeoHashes(QueryPlanners.scala:374)
at
org.locationtech.geomesa.accumulo.index.GeoHashPlanner$class.polyToPlan(QueryPlanners.scala:345)
at
org.locationtech.geomesa.accumulo.index.GeoHashKeyPlanner.polyToPlan(QueryPlanners.scala:374)
at
org.locationtech.geomesa.accumulo.index.GeoHashPlanner$class.getKeyPlan(QueryPlanners.scala:363)
at
org.locationtech.geomesa.accumulo.index.GeoHashKeyPlanner.getKeyPlan(QueryPlanners.scala:374)
at
org.locationtech.geomesa.accumulo.index.GeoHashKeyPlanner.getKeyPlan(QueryPlanners.scala:376)
at
org.locationtech.geomesa.accumulo.index.CompositePlanner$$anonfun$12.apply(QueryPlanners.scala:500)
at
org.locationtech.geomesa.accumulo.index.CompositePlanner$$anonfun$12.apply(QueryPlanners.scala:500)
at
scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:245)
at
scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:245)
at
scala.collection.immutable.List.foreach(List.scala:381)
at
scala.collection.TraversableLike$class.map(TraversableLike.scala:245)
at
scala.collection.immutable.List.map(List.scala:285)
at
org.locationtech.geomesa.accumulo.index.CompositePlanner.getKeyPlan(QueryPlanners.scala:500)
at
org.locationtech.geomesa.accumulo.index.STIdxStrategy.planQuery(STIdxStrategy.scala:225)
at
org.locationtech.geomesa.accumulo.index.STIdxStrategy.getQueryPlan(STIdxStrategy.scala:122)
at
org.locationtech.geomesa.accumulo.index.STIdxStrategy.getQueryPlan(STIdxStrategy.scala:33)
at
org.locationtech.geomesa.accumulo.index.QueryPlanner$$anonfun$getQueryPlans$6$$anonfun$2.apply(QueryPlanner.scala:141)
at
org.locationtech.geomesa.accumulo.index.QueryPlanner$$anonfun$getQueryPlans$6$$anonfun$2.apply(QueryPlanner.scala:141)
at
org.locationtech.geomesa.utils.stats.MethodProfiling$class.profile(MethodProfiling.scala:26)
at
org.locationtech.geomesa.accumulo.index.QueryPlanner.profile(QueryPlanner.scala:55)
at
org.locationtech.geomesa.accumulo.index.QueryPlanner$$anonfun$getQueryPlans$6.apply(QueryPlanner.scala:141)
at
org.locationtech.geomesa.accumulo.index.QueryPlanner$$anonfun$getQueryPlans$6.apply(QueryPlanner.scala:136)
at
scala.collection.Iterator$$anon$11.next(Iterator.scala:370)
at
org.locationtech.geomesa.accumulo.util.CloseableIterator$$anon$5.next(CloseableIterator.scala:34)
at
org.locationtech.geomesa.accumulo.util.SelfClosingIterator$$anon$1.next(CloseableIterator.scala:103)
at
org.locationtech.geomesa.accumulo.util.CloseableIterator$$anon$2.<init>(CloseableIterator.scala:65)
at
org.locationtech.geomesa.accumulo.util.CloseableIterator$class.ciFlatMap(CloseableIterator.scala:64)
at
org.locationtech.geomesa.accumulo.util.SelfClosingIterator$$anon$1.ciFlatMap(CloseableIterator.scala:97)
at
org.locationtech.geomesa.accumulo.index.QueryPlanner.scan$1(QueryPlanner.scala:92)
at
org.locationtech.geomesa.accumulo.index.QueryPlanner.executePlans(QueryPlanner.scala:113)
at
org.locationtech.geomesa.accumulo.index.QueryPlanner.runQuery(QueryPlanner.scala:83)
at
org.locationtech.geomesa.accumulo.data.AccumuloFeatureReaderImpl.<init>(AccumuloFeatureReader.scala:63)
at
org.locationtech.geomesa.accumulo.data.AccumuloFeatureReader$.apply(AccumuloFeatureReader.scala:54)
at
org.locationtech.geomesa.accumulo.data.AccumuloDataStore.getFeatureReader(AccumuloDataStore.scala:686)
at
org.locationtech.geomesa.accumulo.data.AccumuloFeatureCollection.reader(AccumuloFeatureSource.scala:150)
at
org.geotools.data.store.DataFeatureCollection.isEmpty(DataFeatureCollection.java:309)
at
com.nathan.geomesa.test.MyQuery.main(MyQuery.java:97)
I'm guessing it's a GeoMesa issue,
but to rule out GeoTools, you could evaluate the
filter directly against your multi-polygon using the
maven scala console:
$ mvn scala:console -pl
geomesa-compute
scala> import
org.locationtech.geomesa.utils.geotools.SimpleFeatureTypes
scala> import
org.locationtech.geomesa.features.ScalaSimpleFeature
scala> import
org.locationtech.geomesa.utils.text.WKTUtils
scala> val sft =
SimpleFeatureTypes.createType("mySft",
"the_geom:MultiPolygon")
scala> val feature = new
ScalaSimpleFeature("id", sft)
scala>
feature.setAttribute("the_geom", WKTUtils.read("put
your wkt here"))
scala> val filter =
filterFactory.contains(filterFactory.property("the_geom"),
filterFactory.literal(point))
scala> filter.evaluate(feature)
On Mon, 2016-03-28 at 12:11 -0600,
Nathan Mercer wrote:
Hi
Emilio,
I should
have mentioned it. Sorry.
I am
using Geomesa 1.2.0
I cannot
provide one of the multipolygons, but just to make
sure it is not the polygons I will try using a simple
box and see if the result is the same and reply back
to this thread with the results.
Cheers,
Nathan
To help narrow it down, what
version of GeoMesa are you using? If possible, could
you provide one of the multipolygons that is
failing?
On Mon, 2016-03-28 at 11:53
-0600, Nathan Mercer wrote:
Hi,
I am trying to run a simple
contains query. I want to simply check if my
MultiPolygon feature contains a given Point. Or in
other words that the Point is within my MultiPolygon.
I am using the following code in
scala:
*Notes:
- filterFactory is an instance of
FilterFactory2
- geometryAttribute is set to
“the_geom” which is the geometry attribute for the
MultiPolygon feature I created by ingesting from a
shapefile
- point is a Point object of type
com.vividsolutions.jts.geom.Point
- HadoopConfiguration is an alias
for org.apache.hadoop.conf.Configuration
- sparkContext and accumuloConfig
are all set up appropriately
- coverageFeature is the feature
name for my MultiPolygon feature
- I have also tried ! .isEmpty
instead of .count > 0
val filter =
filterFactory.contains(filterFactory.property(geometryAttribute),
filterFactory.literal(point))
val iswithin =
GeoMesaSpark.rdd(new HadoopConfiguration,
sparkContext, accumuloConfig, new
Query(coverageFeature, filter), None).count > 0
This code actually works properly
and gives me back the appropriate response except for
one special case. This is when either the x or y (or
both) coordinates of the point are 0.0
Does anybody have any ideas why
this would fail? And also, any ideas of how to get
around it? Is this a problem with GeoTools or GeoMesa?
I have been banging my head on this
for a while now and cannot figure it out.
Thanks,
Nathan
Mercer, P.Eng.
Software
Developer | Intermap Technologies
#200-846
6th Ave. S.W., Calgary, Alberta, Canada,
T2P 3E5
Tel.
+1 403.266.0900 x217 or 403-539-2206 | Fax +1
403.265.0499 | Skype nathanmercer
nmercer@xxxxxxxxxxxx
| www.intermap.com
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