Ulysses HISCALE, Appendix 2

Fundamental Technologies

Ulysses HISCALE Pages

Appendix 2. User's Guide to LAN360 (continued)

A2.6 Other Features

In the course of developing this program, several features have been added or changed in LANSPECT and other LAN programs as follows:

The seek capability has been added to read_archive.for.
The printing of all times read from the tape on the standard output has been suppressed.
The ability to read UAV input has been added for LANSPECT as well.

A2.7 Additional Information

This is an example to show how the linear and log scaling algorithms work. We start with flux values in eight directions, already normalized if necessary

8 flux values:	50	50	20	10	10	10	5	5
	sum=160;		avg=20
Divide by avg:	2.5	2.5	1.0	.5	.5	.5	.25	.25
	scale=2.0 LINEAR SCALING
Range limit (0-2):	2.0	2.0	1.0	.5	.5	.5	.25	.25
Divide by :	1.0	1.0	0.5	.25	.25	.25	.125	.125
	Color index=240 + 2*
Color index*:	242	242	122	62	62	62	32	32
	scale=2.0 LOG SCALING
Range limit (0.5-2):	2.0	2.0	1.0	.5	.5	.5	.5	.5
	cv = (alog10(av) + alog10(2)) / 2*alog10(2)
get cv :	1.0	1.0	0.5	0.	0.	0.	0.	0.
	Color index=240 + 2*
Color index*:	242	242	122	2	2	2	2	2

(*Rainbow scale with 2 corresponding to black, 242 to bright pink)

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Updated 11/21/02, T. Hunt-Ward