The VisDock toolkit has been integrated into the Collision Detection example built with D3.js (found here) by Mike Bostock. When the mouse pointer tool is selected, the particles will move away from the mouse pointer. When other Selection/Navagation Tools are selected, the particles will not respond to the mouse pointer. For more information about VisDock, cick on the link.
Modified http://d3js.org/d3.v3.min.js to a secure url
Modified http://rawgithub.com/VisDockHub/NewVisDock/master/master/visdock.js to a secure url
Modified http://rawgithub.com/VisDockHub/NewVisDock/master/master/2D.js to a secure url
Modified http://rawgithub.com/VisDockHub/NewVisDock/master/master/IntersectionUtilities.js to a secure url
Modified http://rawgithub.com/VisDockHub/NewVisDock/master/master/visdock.utils.js to a secure url
https://d3js.org/d3.v3.min.js
https://rawgithub.com/VisDockHub/NewVisDock/master/master/visdock.js
https://rawgithub.com/VisDockHub/NewVisDock/master/master/2D.js
https://rawgithub.com/VisDockHub/NewVisDock/master/master/IntersectionUtilities.js
https://rawgithub.com/VisDockHub/NewVisDock/master/master/visdock.utils.js