Example of the new multiple overview feature in QGIS 2.6. Point displacement, but not amazing with the zoom levels and number of points used.
Primarily looking at spacing and composition in QGIS.
GIS and Mapping Blog from Ireland
Made using the excellent QGIS2Three.js plugin.
Legend actually refers to property count rather than density.
For more information see Anita Graser’s post: http://anitagraser.com/2014/03/15/3d-viz-with-qgis-three-js/