This plugin shows the Wordpress Category or any taxonomy in an interactive and responsive tree layouts. It can be used to generate mind maps using the Wordpress taxonomy.Just add the shortcode [category-d3tree] to your post and the plugin will generate the treeview from your category. It uses the D3 javascript library to generate the interactive tree from the taxonomy. A demo of the plugin can be seen here
http://wp.anshisolutions.com/category-tree/
This plugin also support addiitonal Force Directed and Radial Layouts for the taxonomy hierarchies.