This library provides a set of H3 functions and procedures for Neo4j 5.
H3 is a hexagonal hierarchical geospatial indexing system (https://h3geo.org) This library uses the H3 api which can be found at https://h3geo.org/docs/api/indexing
This project uses maven, to build a jar-file with the procedure in this project, simply package the project with maven:
mvn clean package
This will produce a jar-file, neo4jh3-5.19.1.jar,
that can be copied to the plugins directory of your Neo4j instance.
cp target/neo4jh3-5.19.1.jar neo4j-enterprise-5.x.0/plugins/.
Edit your Neo4j/conf/neo4j.conf file by adding this line:
dbms.security.procedures.unrestricted=apoc.*,gds.*,com.neo4jh3.*
dbms.security.procedures.allowlist=apoc.*,gds.*,com.neo4jh3.*
(Re)start Neo4j
Refer to the Documentation.md file for detailed documentation on the functions / procedures.
The Neo4jH3 plugin requires the ability to write to the temp directory. If the temp directory configured with noexec, then you need to update the neo4j.conf with these two lines:
server.jvm.additional=-Djava.io.tmpdir=/path_to_a_new_directory/temp
server.jvm.additional=-Djna.tmpdir=/path_to_a_new_directory/temp