#11 increased dataset causes visualization artifacts

[Jon Saklofske]

After increasing the dataset (see the attached data.xml file) to include three copies of Blake's I&E (rather than the single copy in the default dataset we've been using), when right clicking on circles and when I move the mouse a small amount (when there are many nodes present) strange, jittery stuff happens, and the nodes often become displaced from their coloured circles/categories. Also, nodes cannot be removed from their category circles (they jump back in a strange, half-visible way and they lag behind the mouse pointer when dragged.) This doesn't happen with 2 datasets.

[Jon Saklofske]

Dataset featuring 3 copies of Blake's Songs

[Jon Saklofske]

dataset featuring 2 copies of songs (works fine)