renatoarbex / gheat-java

Port of GHEAT in Java

GHEAT JAVA [JAVA HEAT MAPS]

This is a Java port of gHeat

• This port was primarily inspired by GHeat-NET
• This is fast and a free heat mapping tool.

Source can be compiled using maven and there is a jetty web application included as well.

To run start App.java in heatmaps module and then open test.html

The application can use FileDataSource,or an in memory Quadtree datasource which needs a csv file with weight,latitude and longitude in it or a Postgis data source .

For Postgis data

Change the query to work with custom data ,notice the required aliases( latitude,longitude,geom and weight ).

SELECT ST_X(geom) as longitude,ST_Y(geom) as latitude, weight as weight from mySpatialTable where geom @ ST_MakeEnvelope(?,?,?,?,4326)" or change the source of gheat module for a better and more elegant solution

To run from command line,one can issue mvn clean install from JavaHeatMaps folder.

Then in App.java file,provide full path to res folder,eg:(ThemeManager.init("/full/path/to/res/folder")) and then type java -jar heatmaps-1.0.jar

Open test.html to see the heatmaps overlayed ;).

Here are some screen shots

I hope you find it useful.

If you like or use this project somewhere please contact me at [email protected] http://varunpant.com