Merging nodes/edges in large graph visualization and exploration

[EasyComeEasyLose]

Is your feature request related to a problem? Please describe.
When a large number (more than 100000) of nodes and edges are plotted, showing all the edges, nodes and there information in texts makes the exploration window messy and hard to see any useful information during graph exploration. At the same time, endering such a large number of nodes and edges at once is impossible due to the performance issue of the browser.

Describe the solution you'd like
Nodes and edges could be merged at first. For instance, 100000 nodes could be merge into 100 based on there tags or other features, and the corresponding edges could also be merged. Only when the user zoom into a specific merged node, the nodes inside it will be shown.

Describe alternatives you've considered
Any form of abstraction to make the visualization of huge graph possible and meaningful could be considered as an alternative.