This example extends the previous by adding tiles on the map. This is only a demonstration for the future implementation of the viewport and level of details.
Modified http://d3js.org/d3.v3.min.js to a secure url
Modified http://jsclipper.sourceforge.net/6.1.3.1/clipper.js to a secure url
https://d3js.org/d3.v3.min.js
https://jsclipper.sourceforge.net/6.1.3.1/clipper.js