OrbisData

OrbisData is a library that offers a unique access point to query, manage and retrieve data dedicated to Groovy scripting.

It is based on Groovy specific syntax and aims to provide an elegant and fluent framework to work with geospatial data.

Getting Started

OrbisData need at least Java 11 to work.

Architecture

OrbisData is organized around two modules : Data and Process.

Data

The Data module are dedicated to the creation, the access and the requesting of databases. Currently, two spatial database are supported H2/H2GIS and Postgresql/Postgis.

It provides also a module to manage dataframe as R language proposes, thanks to the Smile (Statistical Machine Intelligence and Learning Engine) library (https://haifengl.github.io/).

Process

The Process module are dedicated to the creation of processes with the definition of the in/output. Processes can be executed with input values and can also be chained.

How to add OrbisData

Maven

To add OrbisData to a Maven project, add the nexus repository to the pom :

...
    <repositories>
        <repository>
            <id>orbisgis-release</id>
            <url>https://oss.sonatype.org/content/repositories/releases/</url>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
            <releases>
                <enabled>true</enabled>
            </releases>
        </repository>
        <repository>
            <id>orbisgis-snapshot</id>
            <url>https://oss.sonatype.org/content/repositories/snapshots/</url>
            <snapshots>
                <enabled>true</enabled>
            </snapshots>
            <releases>
                <enabled>false</enabled>
            </releases>
        </repository>
    </repositories>
...

and add the desired module :

...
    <build>
        ...
        <plugins>
            ...
            <plugin>
                <groupId>org.orbisgis</groupId>
                <artifactId>data</artifactId>
                <version>2.1.1</version>
            </plugin>
            ...
        </plugins>
        ...
    </build>
...

Groovy

Using Grab annotation :

@Grab(group='org.orbisgis.data', module='h2gis', version='2.1.1')
@Grab(group='org.orbisgis.data', module='postgis', version='2.1.1')

OrbisData encapsulates rows,columns from a database to a table or spatial table.

The following code shows how to get the column names from an H2GIS table.

def h2GIS =  H2GIS.open('/tmp/myh2gis_db')
println h2GIS.getTable("myTableName").columns

The next code shows how to iterate over the geometry stored in a table and apply a buffer on them. the_geom refers to the column name and the object returned is a JTS geometry object (https://github.com/locationtech/jts).

def h2GIS =  H2GIS.open('/tmp/myh2gis_db')
h2GIS.getSpatialTable("myTableName").each(it ->
println it.the_geom.buffer(10)
)

Contributing

Please read CONTRIBUTING.md for details on our code of conduct, and the process for submitting pull requests.

License

This project is licensed under the LGPL v3 License - see the LICENSE.md file for details

Funding

OrbisData has been developed within the following frameworks :

• PAENDORA (Planification, Adaptation et Energie des DOnnées territoriales et Accompagnement, 2017-2020), ADEME Programme: MODEVAL-URBA 2017

• URCLIM (URban CLIMate services, 2017-2020), JPI Climate Programme

• ANR CENSE (Caractérisation des environnements sonores urbains : vers une approche globale associant données libres, mesures et modélisations, 2016 -2020)