Class: Viewpoint

X3D: 3.3
Component: Navigation
Status:
experimental

x3dom.nodeTypes. Viewpoint

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

HTML Encoding and Default Values

<Viewpoint bind='false' centerOfRotation='0,0,0' description='""' fieldOfView='0.785398' isActive='false' metadata='X3DMetadataObject' orientation='0,0,1,0' position='0,0,10' zFar='-1' zFar='-1' zNear='-1' zNear='-1' ></Viewpoint>

Inheritance


Constructor

Viewpoint(ctx)

Constructor for Viewpoint

Parameters:
Name Type Argument Default Description
ctx Object <optional>
null context object, containing initial settings like namespace

Fields

These are the X3D / X3DOM fields of this node. Values should usually be received / set as strings via DOM functions (i.e., using setAttribute("myFieldName", "myFieldValue") and getAttribute("myFieldName")).
Name Type Default Value Range Inheritance Standard Description
bind SFBool false X3DViewpointNode Pushes/pops the node on/from the top of the bindable stack
centerOfRotation SFVec3f 0,0,0 The centerOfRotation field specifies a center about which to rotate the user's eyepoint when in EXAMINE mode.
description SFString "" X3DViewpointNode Description of the bindable node
fieldOfView SFFloat 785398 [0, pi] 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.
isActive SFBool false X3DViewpointNode
metadata SFNode X3DMetadataObject X3DViewpointNode Field to add metadata information
orientation SFRotation 0,0,1,0 The orientation fields of the Viewpoint node specifies relative orientation to the default orientation.
position SFVec3f 0,0,10 The position fields of the Viewpoint node specifies a relative location in the local coordinate system. Position is relative to the coordinate system's origin (0,0,0),
zFar SFFloat -1 -1 or [0, inf] Specifies the far plane.
zFar SFFloat -1 -1 or [0, inf] Specifies the far plane.
zNear SFFloat -1 -1 or [0, inf] Specifies the near plane.
zNear SFFloat -1 -1 or [0, inf] Specifies the near plane.