[Therion] Topparser declination and projected elevations

[Andrew Atkinson]

On 21/10/13 09:53, Bruce wrote:
> I always leave the elevations to last.
> 
> Have just discovered that Topparser is not working for me when it comes to
> producing projected elevations.
> 
>  
> 
> Not sure if it is because;
> 
> 1.	Topparser is not using the declination from the top file to adjust
> bearings when it produces projected elevation xvi's, or
> 2.	I have been too clever, and my habit of entering <decl correction> =
> declination + <therion plan rotation> in PocketTopo has got the better of
> me!
> 
>  
> 
> I suspect number 2 is most likely as Andrew seems to have done a pretty good
> job. Either way, unless a field for 'plan rotation' is added to Topparser,
> projected elevations are not going to work for me.

It is 1, well the declination is read in, however it is not used. Not
caused me a problem as in uk it is only just over a degree. Just checked
nz, I see 22 degrees will cause a problem, I will add it to the list.

Is this not causing a problem with the plan as well?

I will add this to the top of the list of things to fix.
> 
> As on the http://therion.speleo.sk/wiki/doku.php/paperless page I have been
> following this approach (that I came up with).
> 
>  
> 
> *                 PocketTopo stores the declination (and trip information
> like the date and the surveyors etc) that is set at the time a shot is
> received with that shot, and this association cannot be broken. If you
> subsequently change the declination (or other information), it only has
> effect for future shots. The declination is added to the compass bearing for
> the purpose of producing the sketch. So, if you enter an erroneous
> declination and take some shots, the drawing will be permanently skewed.

It is possible to change the actual trip for previous legs

Hold down on a leg and click Trip... it will edit the trip information
for that line and any others that are the same.

Andrew