[Therion] weight on distorsion depending on survey

[Philippe Vernant]

Thanks Martin, will do.

Best,
Phil

> On 15 Feb 2017, at 10:23 AM, Martin Sluka via Therion <therion at speleo.sk> wrote:
> 
> Check Survex documentation. The principe is the same. 
> 
> M.s. 
> 
> Odesláno z iPhonu
> 
> 15. 2. 2017 v 8:04, Ben Cooper via Therion <therion at speleo.sk>:
> 
>> Hi Phil,
>> Yes, you can do that by setting the standard deviation for the survey as a whole, and then for each leg that requires it.
>> 
>> From the Therion book:
>> 
>> sd <quantity list> <value> <units> ◃ sets the standard deviation for the given
>> measurements. The Quantity list can contain the following keywords: length, tape,
>> bearing, compass, gradient, clino, counter, depth, x, y, z, position, easting, dx, northing,
>> dy, altitude, dz.
>> 
>> The sd command affects all following legs, so for a single leg, remember to set the sd back to your default again, eg:-
>> sd compass 5 degrees
>> sd clino 2 degree
>> 1 2 209 10.88 -4
>> sd compass clino 0.5 degrees
>> 
>> A small difference in SD makes a big difference in the distribution of error, so suggest experiment with different values.
>> Best regards,
>> Ben
>> 
>> -----Original Message-----
>> From: Therion [mailto:therion-bounces at speleo.sk] On Behalf Of Philippe Vernant via Therion
>> Sent: 14 February 2017 23:34
>> To: List for Therion users
>> Cc: Philippe Vernant
>> Subject: [Therion] weight on distorsion depending on survey
>> 
>> Hi guys,
>> 
>> Could not find the answer, so popping up to ask you the question. Is there a way to say that one survey should bear most on the distorsion ? I have a diving survey which is less accurate than the “regular” surveys, can I put some weight on that survey so it will be more distorted ?
>> 
>> Thanks,
>> Phil
>> 
>> _______________________________________________
>> Therion mailing list
>> Therion at speleo.sk
>> https://mailman.speleo.sk/listinfo/therion
>> 
>> _______________________________________________
>> Therion mailing list
>> Therion at speleo.sk
>> https://mailman.speleo.sk/listinfo/therion
> _______________________________________________
> Therion mailing list
> Therion at speleo.sk
> https://mailman.speleo.sk/listinfo/therion