On: Two.js

[rhengles]

Raphael has no support to work with groups of elements.

[larrykubin → rhengles]

Raphael supports sets of elements:

http://raphaeljs.com/reference.html#Paper.set

[de_dave → larrykubin]

Not the same - e.g. rotating a set of elements causes each individual element to rotate around their individual centers, rather than causing the group to rotate around a central pivot.

[nicolasroy → de_dave]

Pseudo-Grouping can be made in Raphael. However each elements gets transformed one by one. At 100+ elements, things get very laggy.