[Therion] Scaling issues with .3d files

Philip Schuchardt ohc at vt.edu
Wed Mar 15 03:47:50 CET 2006


I took out must the data and only have 2 survey stations and I get same error.  
Is there something wrong with this data?  Do I need to downgrade survex to 
make it work? 

---------- EG3.svx ------------
*begin EG3

*entrance A2

*units tape feet

*begin  ; Trip 1
*date 2004.07.04
*calibrate declination 7.55
*team "Blah" Notes
*team "Blah" Instruments
*team "Blah" Lead Tape

*data normal from to compass tape clino 

;from	to	compass	tape	clino	
A1	A2	285	7.6	-7

*end

*end EG3



On Tuesday 14 March 2006 8:59 pm, Olly Betts wrote:
> On Tue, Mar 14, 2006 at 08:19:36PM -0500, Philip Schuchardt wrote:
> > 10> Vertical range = 42949672.68m (from 20 at 42949672.68m to 21 at
> > 0.00m) 11> North-South range = 42949672.86m (from 495 at 42949672.86m to
> > 21 at 0.00m) 12> East-West range = 42949672.91m (from 15 at 42949672.91m
> > to 21 at 0.00m)
>
> This looks like some weird coordinate wrap-around, since 42949672.91m is
> 0xfffffffb cm, which is -5cm if interpreted as a signed value.
>
> I think the problem must be in the data being fed into Survex, since
> Survex itself doesn't store coordinates in integer cm until after this
> point (they're used to store coordinates in the .3d file).
>
> Cheers,
>     Olly
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