Topographic map of Switzerland with map data from Swiss Maps 2.0.
Thanks to Hugo Lopez for his approach on generating contour polygons.
forked from herrstucki's block: Swiss Topography
Modified http://d3js.org/d3.v3.min.js to a secure url
Modified http://d3js.org/topojson.v1.min.js to a secure url
https://d3js.org/d3.v3.min.js
https://d3js.org/topojson.v1.min.js