| import unittest | |
| import http.client | |
| import json | |
| import urllib.parse | |
| class InterproSolrTest(unittest.TestCase): | |
| server = "hmmer-prod-db01" | |
| port = 9200 | |
| response_times = [] |
#Clustering a Force layout with a quadtree#
This is an example of how to use a Quadtree to cluster the nodes that are close to each other in a Force Layout.
With the slider you can select how deep you want to explore the quadtree, and it creates cluster-nodes representing the points that are not going to be displayed.
This demo shows an animation explaining how a Quadtree is created using D3: "A quadtree is a two-dimensional recursive spatial subdivision. This implementation uses square partitions, dividing each square into four equally-sized squares."
The demo was inspired by the article on Visualizing Algorithms. To draw the points and the quadtree squares I took some code from this Example. The tree basically reuses the code of this Example.