Hi, I found that the error had been fixed in version 5.4.1
Therion 5.4 (5.4.1 now 2017-04-18)
* bugs and issues fixed: 27. invalid compass/backcompass averaging formula
But I am using the "Therion 5.4.1+6884381 (2018-04-12)", were I have found the actual bug. Evaristo. El 16/05/2018 a las 14:17, Evaristo Quiroga via Therion escribió:
Hi,
I have data from a survey with fore/back sight compass and clino. I have detected a Therion bug calculating the average data, comparing with the error loops with Auriga, Visualtopo, Compass and Therion.
See the next compare.
Example from the data in .th file:
data normal from to length compass backcompass clino backclino left right up down 279.0 - 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 279.0 279.0A 2.33 236.8 56.8 -11.4 11.4 0.00 0.00 0.00 0.00 # .superficie 279.0A 279.1 4.51 163.2 343.2 -32.2 32.2 0.00 0.00 0.00 0.00 # .superficie hasta anclaje desviador 279.1 279.2 12.41 1.5 181.5 -77.7 77.7 0.00 0.00 0.00 0.00 279.2 279.3 1.95 212.2 33.1 -17.7 16.6 0.00 0.00 0.00 0.00
Data transferred to Survex by the "data.svx" file
*data normal from to tape compass clino 1 2 0.000000 268.348831 0.000000 1 3 2.330000 235.148831 -11.400000 3 4 4.510000 161.548831 -32.200000 4 5 12.410000 359.848831 -77.700000 5 6 1.950000 210.998831 -17.150000
You can see Therion do a wrong fore/back sight compass average calculation. The good data average are:
1 3 236.8 -11.4
3 4 163.2 -32
4 5 1.5 -77.7
5 6 212.65 -17.15
The clino average seems OK.
Searching in the mail-list I have found the bug was reported before. I think is not corrected since then.
https://www.mail-archive.com/therion@speleo.sk/msg04660.html
Regards,
Evaristo.
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