Use ScrollMagic.js to update the internal properties of the network's force as the user keep scrolling down through the page. Click the "open" on the right corner to scroll the visualization.
referencing the blocks from mike bostock,harry stevens
Modified http://cdnjs.cloudflare.com/ajax/libs/ScrollMagic/2.0.5/ScrollMagic.min.js to a secure url
Modified http://cdnjs.cloudflare.com/ajax/libs/ScrollMagic/2.0.5/plugins/debug.addIndicators.min.js to a secure url
https://code.jquery.com/jquery-1.12.4.js
https://d3js.org/d3.v4.min.js
https://cdnjs.cloudflare.com/ajax/libs/ScrollMagic/2.0.5/ScrollMagic.min.js
https://cdnjs.cloudflare.com/ajax/libs/ScrollMagic/2.0.5/plugins/debug.addIndicators.min.js