Description Data structure used for retrieving or specifying the configuration parameters of a Ray Fan type Source Primitive.
Definition T_SOURCEPRIMRAYFAN AxisY As Long numRays As Huge_ PowerWatts As Double RaySpec As Long ReverseDir As Long semi As Double Vec As String
Members AxisY Specifies the orientation of the ray fan as aligned along either the X or Y axis. A value of 0 specifies a ray fan oriented along the X axis. A value of 1 specifies a ray fan oriented along the Y axis.
numRays The number of rays across the the diameter of the source aperture.
PowerWatts Total power emitted by the source in units of Watts.
RaySpec Specifies how the Vec parameter is interpreted when setting the ray directions. A value of 0 corresponds to the "Along direction" option in the GUI. A value of 1 corresponds to the "From position" option in the GUI. See the Ray Fan type Source Primitive help topic for more information.
ReverseDir Specifies whether the ray directions are reversed (i.e. instead of "Along direction", the rays would be traveling "From direction" and instead of "From position" the rays would be traveling "Toward position"). A value of 0 means the rays are not reversed. A value of 1 means the ray directions are reversed.
semi Sets the semi-aperture of the ray fan.
Vec The (v1,v2,v3) vector whose interpretation is set by the RayFromDir parameter. The vector is supplied as a string of delimited values (ex. "0, 1.0, 1.0" ).
Used as a parameter in
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