[Therion] Multiple fixes for the same point

[Benedikt Hallinger]

No, i meant the following:

currently one has to give std-dev explicitely:
  fix 1.2a  0.5 0.5 0.5

it would be nice to use instead:
  fix 1.2a  gps
where the term "gps" is some predefined accuracy, like in grade definition


Am 2017-09-11 10:08, schrieb Bruce Mutton via Therion:
> Benedikt wrote
>>The option to use "alias names" for fixes instead of directly numbers 
>> would be good, this would allow to ship standards with therion and allow 
>> the user to to define custom ones, just like in grade definitions.
>
> Not sure I understand correctly what you mean.
>
> We can make alias now, using equate.  This is what I usually do for gps 
> fixes.
>
> In a cave survey 'index data file'...
> centreline
> cs lat long
> fix gpsEntrance01 <lat> <long> <altitude> [<stderr> etc ]
> fix gpsEntrance02 <lat> <long> <altitude>
> etc
>
> equate gpsEntrance01  53@<survey1>
> equate gpsEntrance02  1@<survey14>
> equate gpsEntrance01  AliasNameCreatedByThisStatement
> endcentreline
>
> ie 53@<survey1>, gpsEntrance01 and AliasNameCreatedByThisStatement are all 
> alias' of each other.  They all refer to the same physical point. The last 
> name is created by the equate statement, whereas the others all exist prior 
> to the execution of the equate statements.
>
> Or were you meaning something different?
>
> Bruce
>
>
>
>
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