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The PositionInterpolatorEx node interpolates among a list of 3D vectors using a specified interpolation method. This node extends the standard PositionInterpolator VRML node.
EXTERNPROTO PositionInterpolatorEx [
eventIn SFFloat set_fraction
exposedField MFFloat key []
exposedField MFVec3f keyValue []
exposedField MFFloat params [0, 0, 0]
exposedField SFString type "LINEAR"
eventOut SFVec3f value_changed
]
[
"urn:inet:parallelgraphics.com:cortona:PositionInterpolatorEx"
"http://www.parallelgraphics.com/vrml/proto/Cortona/extensions.wrl
#PositionInterpolatorEx"
]
The type field defines the interpolation method. The possible values of this field are "CONSTANT", "LINEAR", "COSINE", "CUBIC" and "HERMITE". In the case of the Hermite interpolation, the params field specifies three interpolation parameters: Tension, Continuity and Bias.
Definitions of the other fields and events of the ColorInterpolatorEx node are similar to the corresponding definitions for the PositionInterpolator VRML node.
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