KDTable Cloud

[#1]

Cloud example of KDTable to go with blog post.  The small white square is a mouse handle; drag it around to highlight the nearest points in the cloud.  Edit the script to change the cloud size from 20,000 to 2,000,000 points; the nearest neighbors (color points) are still found very fast, but showing the 2 million other gray points (check box) begins to get slow.