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Grouping nodes help to organize the scene graph, can establish relative coordinate systems,
and can contain most other kinds of X3D nodes.
Grouping nodes include the
Anchor,
Billboard,
Collision,
Group,
StaticGroup,
Switch
and
Transform
nodes.
The
Inline
node is also similar since it adds nodes into the current scene that loaded from another X3D scene, retrieved
via a local or online url address.
The supporting
Chapter 3 slideset
and course videos
(NPS,
YouTube)
for X3D for Web Authors are available online via
X3dGraphics.com.
Also available:
X3D Scene Authoring Hints
for
Coordinate Systems,
Inline Scenes,
Scale Factors
and
URL Links.
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![[1] BoundingBoxIllustration.x3d Bounding box illustration](_viewpoints/BoundingBoxIllustration.x3d._VP_Bounding_box_illustration.png "[1] BoundingBoxIllustration.x3d Bounding box illustration")
