src/cv/tilt.cal

{ SCCSid "$SunId$ LBL" }

{
        tilt.cal - tilt data for IES luminaires
}

tilt_ang = Acos(Kz) / DEGREE;
tilt_xang = Asin(Jy/sqrt(Jy*Jy+Jz*Jz)) / DEGREE;

tilt_ang2 = tri(tilt_ang, 90);
tilt_xang2 = tri(tilt_xang, 90);
Revision:	2.1
Committed:	Tue Nov 12 17:02:15 1991 UTC (32 years, 5 months ago) by greg
Branch:	MAIN
Changes since 1.1:	+0 -0 lines
Log Message:	updated revision number for release 2.0
#	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 = Asin(Jy/sqrt(JyJy+JzJz)) / DEGREE;
9
10	tilt_ang2 = tri(tilt_ang, 90);
11	tilt_xang2 = tri(tilt_xang, 90);