How to add Phontomjs to JasperReport Studio 6.3 for Custom Visualisation Components

1. Download phantomjs from website
http://phantomjs.org/download.html

2. Extract to local disk:
C:\tool\phantomjs-2.1.1-windows

3. In windows:
Control Panel\System and Security\System

Advanced system settings->Advanced->Environment Variables

Update the path variable with
path = ..;C:\tool\phantomjs-2.1.1-windows\bin

4. Restart Jaspersoft Studio and start adding Custom Visulisation Components.

Here is the more detailed version from other author

http://community.jaspersoft.com/blog/step-step-procedure-run-existing-examples-d3-chart-samplesthat-comes-product-6x-jasper-design