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https://issues.apache.org/jira/browse/TINKERPOP-2558?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18141651#comment-18141651
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ASF GitHub Bot commented on TINKERPOP-2558:
-------------------------------------------
GumpacG commented on code in PR #3754:
URL: https://github.com/apache/tinkerpop/pull/3754#discussion_r4519698574
##########
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/structure/geo/HilbertKey.java:
##########
@@ -0,0 +1,139 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tinkerpop.gremlin.structure.geo;
+
+/**
+ * Package-private locality key used as the third key of the geometry order.
The key is the
+ * level-16 Hilbert index of the cell holding the 2D bounding box centre of a
geometry, so that
+ * geometries which lie near each other on the plane or the globe sort near
each other.
+ * <p>
+ * The key is a 32-bit value. Compare it as unsigned: keys above 2^31 are
negative as an int.
+ * The grid and curve are specified in gremlin-semantics.asciidoc.
+ */
+final class HilbertKey {
Review Comment:
JTS will be added in the PR that implements the predicates. Only encode()
will be removed, the rest will remain as it implements the grid specs that we
need.
> GEO Spatial APIs
> ----------------
>
> Key: TINKERPOP-2558
> URL: https://issues.apache.org/jira/browse/TINKERPOP-2558
> Project: TinkerPop
> Issue Type: Improvement
> Components: process
> Affects Versions: 3.5.0
> Reporter: Jitesh
> Priority: Major
>
> Provide support for Geo based APIs (predicates, objects, etc)
>
>
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