instantreality 1.0

Component:
Navigation
Status:
fully implemented
Structure type:
concrete
Standard:
Avalon

PerspectiveViewpoint (Standard name: Viewpoint)

Viewpoint provides a specific location and direction where the user may view the scene. The principalPoint extention allows to set asymmetric frustums.

Inheritance

Code

XML encoding
<PerspectiveViewpoint principalPoint='0 0'
fieldOfView='0.785398'
fovMode='SMALLER'
aspect='1.0'
centerOfRotation='0 0 0'
orientation='0 0 1 0'
position='0 0 10'
upVector='0 1 0'
zNear='-1'
zFar='-1'
jump='TRUE'
retainUserOffsets='FALSE'
isDefault='FALSE'
description=''
triggerName='Synchronize'
logFeature=''
 />
Classic encoding
PerspectiveViewpoint {
	principalPoint 0 0
	fieldOfView 0.785398
	fovMode "SMALLER"
	aspect 1.0
	centerOfRotation 0 0 0
	orientation 0 0 1 0
	position 0 0 10
	upVector 0 1 0
	zNear -1
	zFar -1
	jump TRUE
	retainUserOffsets FALSE
	isDefault FALSE
	description ""
	triggerName "Synchronize"
	logFeature [""]
}

Interface

Filter: X3D only | Avalon only | All
id Name DataType PartType Default ValueType Description
SFVec2f principalPoint SFVec2f inputOutput 0 0 The relative position of the principal point.
SFFloat fieldOfView SFFloat inputOutput 0.785398 Preferred minimum viewing angle from this viewpoint in radians. Small field of view roughly corresponds to a telephoto lens, large field of view roughly corresponds to a wide-angle lens. Hint: modifying Viewpoint distance to object may be better for zooming. Warning: fieldOfView may not be correct for different window sizes and aspect ratios. Interchange profile hint: this field may be ignored.
SFVec3f centerOfRotation SFVec3f inputOutput 0 0 0 centerOfRotation point relates to NavigationInfo EXAMINE mode.
SFRotation orientation SFRotation inputOutput 0 0 1 0 Rotation (axis, angle in radians) of Viewpoint, relative to default -Z axis direction in local coordinate system. Hint: this is orientation _change_ from default direction (0 0 -1). Hint: complex rotations can be accomplished axis-by-axis using parent Transforms.
SFVec3f position SFVec3f inputOutput 0 0 10 Position (x, y, z in meters) relative to local coordinate system.
SFBool jump SFBool inputOutput TRUE Sspecifies whether the user's view jumps to the position and orientation of a bound node or remains unchanged
SFBool retainUserOffsets SFBool inputOutput FALSE retainUserOffsets is FALSE, the viewer is returned to the originally defined viewpoint position/orientation after local navigation
SFBool isInteractive SFBool outputOnly FALSE Event true sent when node becomes interactive, user can navigate the view transformation
SFBool set_bind SFBool inputOnly Sending event set_bind=true makes this node active. Sending event set_bind=false makes this node inactive. Thus setting set_bind to true/false will pop/push (enable/disable) this Bindable
SFTime bindTime SFTime outputOnly Event sent when node becomes active/inactive.
SFBool isBound SFBool outputOnly FALSE Event true sent when node becomes active, event false sent when unbound by another node.
SFString description SFString initializeOnly Text description or navigation hint to be displayed for this Bindable. Hint: make descriptions clear and readable. Warning: without description, Bindable (e.g. Viewpoint objs) can not be activated/deactivated with keyboard or gui messages (e.g. switched with PgUp bzw PgDn)
SFNode metadata SFNode inputOutput MetadataObject container for payload metadata inside MetadataSet element