Fixing the same point multiple times on different dates

[Tarquin Wilton-Jones]

On 10/09/2020 23:26, Olly Betts wrote:
> On Thu, Sep 10, 2020 at 10:42:56PM +0100, Tarquin Wilton-Jones wrote:
>> Survex refuses (unless I am mistaken) to allow multiple fixes per
>> station.
> 
> You can't specify multiple exact fixes with different coordinates
> (as that would be contradictory) but you can provide multiple fixes if you
> specify error details, for example:
> 
> $ cat multifix.svx 
> *fix 1 0 0 0 5 5 6
> *fix 1 1 0 2 5 5 6

Aha!

Thanks you so much. I knew you would have thought of this sort of issue
already. Nice to know that the system already provides what I needed.

(The only writing I could find about this was a past thread where
someone had taken 2 GPS readings on Madagascar with 5 m confidence, and
then surveyed between them with 2 m confidence, and got a 12 m error,
and needed to manually displace the "fixed" stations more than the
survey. Your solution solves that too.)

Cheers,

Tarquin