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Revision as of 13:51, 30 December 2011

vtk-grass-bridge with JAVA bindings

The vtk-grass-bridge main page http://code.google.com/p/vtk-grass-bridge/

Short introduction how to compile the vtk-grass-bridge: http://code.google.com/p/vtk-grass-bridge/wiki/HowToCompile


The Java module v_sample_rast: http://code.google.com/p/vtk-grass-bridge/source/browse/trunk/Modules/Java/v_sample_rast.java

Calling GRASS from JAVA


       public String run(String[] cmd)  {
                       Process p1=rt.exec(cmd, env);

and use:

       gm.run({"r.info", "map=roads"});



It seems that calling grass in JAVA by using java.Lang.Runtime.exec() can be implemented easily in Linux platform (tested successfully on Ubuntu 9.10).

First install the grass use the apt-get:

 sudo apt-get install grass  # it will install the latest stable version

After the installation completed you can:

 #Test it in the terminal without JAVA (make sure that you have a GRASS database installed):

Open a terminal and enter:


The following the instruction in the screen or check here.

Test the environment settings

Test using GRASS command directly in the terminal:

Set the environment (we assume GRASS being installed under /usr/lib/grass64):

export GISBASE=/usr/lib/grass64
export GISRC=/home/kk/gisrc
export PATH=$PATH:$GISBASE/bin:$GISBASE/scripts

Then try some GRASS command directly, for example:


Now call GRASS in JAVA if the above test 2 passed.

Just use the Runtime.getRuntime.exec(String cmd,String[] env):

String cmd="g.version";

String[] exe = { "bash", "-c", cmd };
String[] env={"GISBASE=..","GISRC="".......};  // the environment variables which you set in the step 2.


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