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A candela plot is a plot of luminous intensity, or flux per solid angle. In photometric 2*<'=*zaQ
units, a luminous intensity plot is in units of candelas (lumens per steradian). In 5|^{t00T~
radiometric units, an intensity plot is in units of watts per steradian. Candela plots $F,&7{^
are commonly used in the design of illumination systems, especially those used in pHpHvSI
the far field. }[%d=NY
Candela data can be collected from ray sets of Missed rays, rays Exiting a surface @uaf&my,P
or rays Incident on a surface. Missed rays are a collection of all rays that “leave” 1FO T
the model and “go off to infinity.” Exiting rays are the collection of ray segments !R/-|Kjy
following the intersection point of a ray at a surface. Due to ray splitting, several -Ze{d$
ray segments may contribute to the candela data for each incident ray. Incident "Nx3_mQ
rays are the collection of ray segments which intersect the selected surface. No QxjX:O
surface selection is required for Missed rays but one is necessary for Exiting and S5$sB{\R
Incident rays. `AO<r
The candela plots represent flux versus angle and can be smoothed using the :1O1I2L0
Candela Options dialog box. The iso-candela plots can be presented as false )f6:{ma
color maps or contour plots. The distribution plots are graphs of cross-sectional |0jmOcZF
curves through the candela distribution. J"TM[4^\Y
The orientation of the candela plots is determined by the Normal Vector and the k5=VH5{S
Up Vector, as specified in the Analysis|Candela Options dialog box. The &