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root/radiance/ray/src/cv/tilt.cal
Revision: 2.2
Committed: Thu Jun 2 09:10:17 1994 UTC (30 years, 1 month ago) by greg
Branch: MAIN
Changes since 2.1: +1 -1 lines
Log Message:
fixed warnings caused by certain orientations

File Contents

# Content
1 { SCCSid "$SunId$ LBL" }
2
3 {
4 tilt.cal - tilt data for IES luminaires
5 }
6
7 tilt_ang = Acos(Kz) / DEGREE;
8 tilt_xang = if(Jy*Jy-FTINY, Asin(Jy/sqrt(Jy*Jy+Jz*Jz))/DEGREE, 0);
9
10 tilt_ang2 = tri(tilt_ang, 90);
11 tilt_xang2 = tri(tilt_xang, 90);