instantreality 1.0

Component:
Layout
Status:
partly implemented
Structure type:
concrete
Standard:
X3D3.2

ScreenGroup

The ScreenGroup node is a node derived from X3DGroupingNode with one additional functional feature: it modifies the scale in such a way that one unit is equal to one pixel in both the horizontal and vertical directions. If the ScreenGroup node is a child of a Billboard node that is screen-aligned (i.e., has an axisOfRotation value of (0,0,0)), the children of the ScreenGroup shall be both screen-aligned and scaled so that one unit is equal to one pixel. This allows users to place screen-aligned and screen-scaled content into the 3D scene. It will maintain its location in the 3D scene but can be occluded by other geometry that lies in front. Additionally, it can occlude other geometry that lies in back.

Inheritance

Code

XML encoding
<ScreenGroup logFeature=''
bboxCenter='0 0 0'
bboxSize='-1 -1 -1'
render='TRUE'
showBBox='FALSE'
 />
Classic encoding
ScreenGroup {
	logFeature [""]
	bboxCenter 0 0 0
	bboxSize -1 -1 -1
	render TRUE
	showBBox FALSE
}

Interface

Filter: X3D only | Avalon only | All
id Name DataType PartType Default ValueType Description
MFNode children MFNode inputOutput Node field that contains a list of children nodes
MFNode addChildren MFNode inputOnly The addChildren event appends nodes to the children field of a grouping node. Any nodes passed to the addChildren inputOnly field that are already in the children list of the grouping node are ignored
MFNode removeChildren MFNode inputOnly The removeChildren event removes nodes from the children fieldof the grouping node . Any nodes in the removeChildren event that are not in the children list of the grouping node are ignored
SFVec3f bboxCenter SFVec3f initializeOnly 0 0 0 Bounding box center: position offset from origin of local coordinate system.
SFVec3f bboxSize SFVec3f initializeOnly -1 -1 -1 Bounding box size: automatically calculated, can be specified as an optimization or constraint.
SFBool render SFBool inputOutput TRUE Flag to control the visibility of the node or subtree
SFBool showBBox SFBool inputOutput FALSE Show Bounding Box of Subtree.
MFString logFeature MFString inputOutput state, child, parent, route, eventIn, eventOut controls the logging of changes, state: log state changes (e.g. live), child: log child add/remove, parent: log parent add/remove, route: log route add/remove; eventIn: log receiving of events, eventOut: log sending of events: guiView, runtime system should create node-view, guiEdit: runtime system should create node-editeverything: log everything
SFNode metadata SFNode inputOutput MetadataObject container for payload metadata inside MetadataSet element