[Therion] Radiolocation Fixed Points

[Tarquin Wilton-Jones]

Hi Daniel,

> There are many many stations saved automatically with the device.
> 
> We fixed two points determined by radiolocation, one at the beginning of
> the siphon and another at the end.

Interesting. How are you fixing only the easting and northing, without
fixing the altitude? (Or are you fixing the altitude, with a high
standard deviation factor?)

> When after Therion compilatione, the survey is completely distorted.

It would help to see an example of this - source code for the survey
itself. (Only the part with the siphon and fixed points.)

Also, what happens if you break the data for the siphon by disconnecting
two stations from each other; do the two ends end up where you expect
them to be?

> Doesn't the problem come from too many shots and Therion not being able
> to compensate for the very small shots?

Therion in general seems to work at the 1 cm level when exporting
certain formats, but I think (someone correct me if I am wrong) that
internally, it works on much higher resolution, and therefore can work
even with tiny legs.

Cheers,

Tarquin