Minor bug generates warnings for valid clino readings

[Olly Betts]

On Tue, Nov 13, 2012 at 01:16:03PM +0000, Footleg wrote:
> I was processing a survey were clino readings were from an instrument where
> a zero reading is straight up. So the calibrate statement is:
> *calibrate clino 90.00 -1
> 
> The file processes fine, but the log is full of warnings about clino
> readings over 90 degrees:
> warning: Clino reading over 90 degrees (absolute value)
> 
> These readings are not over 90 degrees once the calibration is applied, so
> the warnings should be not generated. Presumably a related bug exists where
> erroneous readings of less that -90 degrees (after calibration adjustment)
> would not generate warnings because the actual value (before calibration
> adjustment) is > -90

The warning is actually intentional, but it's based on the assumption
that a clino reading in degrees has numbers on from -90 to +90, and so
could not have shown you a reading outside this range.  If your clino
under-reads by 5 degrees, pointing it almost straight down will give a
reading off the scale - that's why there's a check on both the
uncorrected and corrected reading.

But it sounds like your clino has numbers on from 0 to 180?  We probably
want a way to give a valid range for the current instrument.  That would
also allow us to catch some typos in the tape reading (like 123.4
instead of 12.34).

Cheers,
    Olly