Description Sets the parameters for a Gabor Synthesis (see Coherent Field Synthesis dialog).
Definition Type T_SYNTH_RAYS_FROM_FIELD PowCutoffAbs As Double PowCutoffFract As Double XSemiAp As Long YSemiAp As Long XMaxRayShift As Long YMaxRayShift As Long XMaxRayAngle As Long YMaxRayAngle As Long Material As Long OverlapFactor As Double End Type
Members PowCutoffAbs Discard rays whose absolute flux is less than this value.
PowCutoffFract Discard rays whose flux relative to the maximum is less than this fraction (value must be 0-1).
XSemiAp Semi-aperture of individual beamlet in the X-dimension expressed as a power of 2 with the minimum value being 2 and the maximum value being the number of pixels in the X-direction minus 1 (Nx-1). Note that the number of pixels for the complex field calculation must be 2n+1. The XSemiAp units are samples in the analysis surface (i.e. pixel count).
YSemiAp Semi-aperture of individual beamlet in the Y-dimension expressed as a power of 2 with the minimum value being 2 and the maximum value being the number of pixels in the Y-direction minus 1 (Ny-1). Note that the number of pixels for the complex field calculation must be 2n+1. The YSemiAp units are samples in the analysis surface (i.e. pixel count).
XMaxRayShift Number of additional beams in the X-direction in units of beamlet full width. Using the ray shift parameters may be required in order to accurately model fields which exhibit spatial structure away from the center of the analysis grid.
YMaxRayShift Number of extra beams in the Y-direction in units of beamlet full width. Using the ray shift parameters may be required in order to accurately model fields which exhibit spatial structure away from the center of the analysis grid.
XMaxRayAngle Sets the maximum ray angle in the local X-direction by indicating the number of angular steps that will be used. The angular step size is set implicitly by the analysis grid size and sampling. Must be an integer value less than or equal to XSemiAp/2.
YMaxRayAngle Sets the maximum ray angle in the local Y-direction by indicating the number of angular steps that will be used. The angular step size is set implicitly by the analysis grid size and sampling. Must be an integer value less than or equal to YSemiAp/2.
Material Node number of immersion material for synthesized rayset.
OverlapFactor Must be set to unity (1).
Remarks This structure mimics most of the options found on the Coherent Field Synthesis dialog.
Used as Parameter in
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