tests

2D graphs

https://echoesparis.github.io/web/wip/2d-graph/graph_AtlasCasestudies.html

3D graphs

3D json

https://echoesparis.github.io/web/wip/d3/streamgraph_tags/

https://echoesparis.github.io/Sandbox/d3/radial-tidy-tree/

https://echoesparis.github.io/Sandbox/d3/tree/