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Author: jericks

README.rst

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+Geometry command line library.
+==============================
+Geometry commands is a command line library for processing geometry that follows the unix philosophy. Each command does one thing well (buffer, centroid, envelope) by reading in a geometry, processing the geometry, and writing the geometry out as WKT.  Individual commands can be connected with unix pipes.  For more information please visit the `web site <http://jericks.github.com/geometrycommands/index.html>`_.
+
+Libraries
+---------
+JTS: 
+    http://tsusiatsoftware.net/jts/javadoc/com/vividsolutions/jts/geom/Geometry.html
+Proj4j: 
+    http://trac.osgeo.org/proj4j/
+Args4J: 
+    http://args4j.kohsuke.org/
+
+Examples:
+---------
+Geometry input with -geom argument
+>>> geom buffer -g "POINT (10 10)" -d 2
+
+Geometry input using Standard input stream
+>>> echo "POINT (10 10)" | geom buffer -d 20
+
+Piping results of one geometry command to another
+>>> geom buffer -g "POINT (10 10)" -d 2 | geom envelope
+
+Contains
+>>> echo "POINT (0 0)" | geom buffer -d 10 | geom contains -o "POINT (5 5)"
+true
+>>> echo "POINT (0 0)" | geom buffer -d 10 | geom contains -o "POINT (25 25)"
+false
+
+Buffer a point, get coordinates, draw coordinates to image, and open the image 
+>>> echo "POINT (10 10)" | geom buffer -d 5 | geom coordinates | geom draw && open image.png
+
+List available geometry commands:
+>>> geom list
+list
+buffer
+centroid
+contains
+convexHull
+draw
+difference
+envelope
+intersection
+
+Build
+-----
+Geometry Commands depends on the Java Topology Suite (JTS) and Proj4j and uses Maven as a build tool.
+Unfortunately, Proj4j is not in a Maven repository.  So, to build Geometry Commands you must first
+checkout Proj4j, build the jar, and install it in your local Maven repository.
+
+Checkout source code:
+svn checkout http://svn.osgeo.org/metacrs/proj4j/trunk/ proj4j
+
+Build it:
+cd proj4j/src
+ant
+
+Install it:
+cd proj4j/
+mvn install:install-file -Dfile=build/distro/lib/proj4j-0.1.0.jar -DgroupId=org.osgeo -DartifactId=proj4j -Dversion=0.1.0 -Dpackaging=jar
+
+Now you can build Geometry Commands using Maven:
+cd /geometrycommands
+mvn clean install
+
+License
+-------
+Geometry Commands is open source and licensed under the MIT License.