[Therion] Combining caves using different co-ordinate systems

[Footleg]

Yes, adding that different cs declaration to my thconfig file does
solve the problem.

Thank you for this work around.

Footleg

On 22 September 2014 17:27, Stacho Mudrak <lists at group-s.sk> wrote:
> Something goes definitely wrong here...
>
> If no CS is defined in thconfig file, therion uses first CS that it founds
> as output CS - therefore if you reverse input files, results change.
>
> It looks to me, that transformations to coordinate systems you are using do
> not work as expected. Unfortunatelly, I have no idea why it is like that -
> it needs some more sophisticated debugging, but using WGS84/UTM as output CS
> seems to work fine - see attached file.
>
> Does it solve your problem?
>
> S.
>
> On 20 September 2014 23:12, Bruce <bruce at tomo.co.nz> wrote:
>>
>> Hmm, Seems you are right that it is wrong.
>> I tried adding explicit select statements to the
>> thconfig-both_csconfig.thc
>> and changing the position of the cs within the file, with no change in
>> behaviour.
>> Looks like a bug to me.
>>
>> Only difference that I can see with how I use it is that I am using
>> lat-long
>> (sometimes but not always) and two variants of an EPSG specification
>> (which
>> if exhibited same behaiour would give 1000's km error), whereas you have
>> not
>> used an EPSG code for eur79z30.
>>
>>
>> Clutching at straws...
>> Does eur79z30 have an EPSG code, and if it does, does using it's EPSG code
>> in place of eur79z30 fix the behaviour?
>>
>> Bruce
>>
>> -----Original Message-----
>> From: therion-bounces at speleo.sk [mailto:therion-bounces at speleo.sk] On
>> Behalf
>> Of Footleg
>> Sent: Saturday, 20 September 2014 11:55 p.m.
>> To: List for Therion users
>> Subject: Re: [Therion] Combining caves using different co-ordinate systems
>>
>> I have checked that both my survey files have date and cs declarations
>> inside centreline blocks. Each file generates the correct position when I
>> generate a KML from either file alone.
>> Next I tried to add a cs statement in my thconfig file. This appears to
>> over-ride the cs I declared in the centreline block. So if I put a
>> different
>> cs declaration in the thconfig file to the cs declared in the survey data
>> file, then this results in the kml output putting the cave in the wrong
>> place.
>>
>> I have created a bear bones set of examples (attached). The cave should be
>> on the edge of the open grass area and trees.
>>
>> thconfig-eur79Only.thc  Puts the cave declared with Eur79 datum in the
>> correct place.
>> thconfig-EPSGOnly.thc Puts the cave declared with EPSG:25830 datum in the
>> correct place.
>>
>> thconfig-eur79csconfig.thc Declares the cave with Eur79 but specifies
>> EPSG:25830 in the thconfig, and the cave now appears in the wrong place.
>>
>> The other files show various ways of including both caves, and they are
>> rendered always with one in the correct place and one in the wrong place.
>>
>> Footleg
>>
>> _______________________________________________
>> Therion mailing list
>> Therion at speleo.sk
>> http://mailman.speleo.sk/mailman/listinfo/therion
>
>
>
> _______________________________________________
> Therion mailing list
> Therion at speleo.sk
> http://mailman.speleo.sk/mailman/listinfo/therion
>