Some Plugins I have been tweaking/hacking/building for IITC & Ingress
An example here.
Includes 2 modified plugins (originals available here - http://iitc.jonatkins.com/release/plugins/)
portals-list.user.js fly-links.user.js
The modifications that were made was to limit the 'workable area' of the plugins by limiting the data set to the interior of a polygon.
This was achieved by using DrawTools (http://iitc.jonatkins.com/release/plugins/draw-tools.user.js).
Requires Draw Tools. After drawing a draw tools polygon the plugins should function as originally designed except with the restriction that they only use portals within the defined area.
Polygon-Portal-List, will provide a link (next to portals list) named "Polygon List", this will provide a pop up dialog of the portals in that defined area.
Polygon-Fly-Links, will provide the same cool functionality that flylinks does, however it should be limited to the defined polygon area
Yeah... so i cheated, on multiple counts...
1 - In essence (and primarily out of laziness) the original plugins were renamed (and namespace to allow loading of both plugins), i did no real work to improve the existing code.