drawGroupPrimitives abstract method

List<MarkElement<ElementStyle>> drawGroupPrimitives(
  1. List<Attributes> group,
  2. CoordConv coord,
  3. Offset origin

Renders primitive elements of all tuples of a group.

The tuples are rendered in groups. the Attributes.shape of the first tuple of a group will be taken as a represent, and it's drawGroupPrimitives method decides the basic way to render the whole group. If different tuples have different shapes, define and call special element rendering methods for each item.


List<MarkElement> drawGroupPrimitives(
  List<Attributes> group,
  CoordConv coord,
  Offset origin,