[Therion] questions on therion

[Wolfgang Zillig]

Hello,

I'm not really using therion yet (there were always other people who 
draw the caves ;-) but that will change propably.


a) I try to get an overlay of the centreline on a scanned topographical 
map but I always get an error ( test.th [47] -- number expected -- end) 
but I don't know where to insert more numbers
examplecode:
   surface
   bitmap ur.png  [1  11  211065.0  2139614.0  6310  4474  237623.0  
2158455.0 meters]
   grid-units meters
   grid 211000.0 2139000.0 20000.0 15000.0 2 2
   10.0 10.0 10.0 10.0
   end surface

b) at loops: is the standard error for the measurement devices included 
when the loops are closed? IE when more than one GPS measurements (with 
high errors are used to fix the cave)?

Thanks for any help

Wolfgang
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