Viz - Layer

About

A layer acts like a transparent sheet upon which any graphic object can be placed.

There is no difference between layers and groups at all, since they are both just nodes of a scene graph.

Articles Related

Structure

Layers can be:

• layer list (A document is just a series of layer)
• nested (A layer contains another layer)

Properties

• Invisible,
• Dimmed,
• or Locked (made read-only)

Documentation / Reference

• wiki/2D_computer_graphics
• wiki/Scene_graph