[Therion] Conflict between "extend ignore" command and inverse legs

Evaristo Quiroga eqr at ecgracia.com
Wed Jun 6 23:05:07 CEST 2018


Thanks Bruce.

I have commented all the splays "extend ignore", and Therion is doing 
now a good job, ignoring the appropriate leg (extend ignore 83 92). All 
the splays "extend ignore" was confusing the Therion compiler.

This data is an export from Topodroid, that incorporates the "extend 
ignore" command before the splays shots. I will comment to Marco Corvi 
on the problem.

Bruce, I had already read your excellent wiki about Extended Elevation 
and the Marco Corvi’s altervista web pages on extended elevations in 
relation to loops 
<http://marcocorvi.altervista.org/caving/tbe/m_04/m_044.htm>, but I had 
not managed to solve the problem.

Best regards,

Evaristo.

El 06/06/2018 a las 21:53, Bruce Mutton via Therion escribió:
>
> Evaristo
>
> An interesting situation.  I have not tried to compile your data, but 
> notice you have extend ignore prior to each set of splays.
>
> I don’t think extend ignore has any useful function with respect to 
> splays (but I am not sure).
>
> I suspect what you have done is effectively follow ‘extend ignore’ 
> with ‘extend left’ without any non-splay legs in between.  Possibly a 
> confusing situation for Therion. Have a look at my understanding here 
> <https://therion.speleo.sk/wiki/extend#summary_of_all_extend_options_for_survey_centrelines> 
> (although it does not yet consider splays at all, or inverse 
> (backsight) legs properly).
>
> What happens if you remove all the extend ignores prior to the splay legs?
>
> Bruce
>
> *From:*Therion <therion-bounces at speleo.sk> *On Behalf Of *Evaristo 
> Quiroga via Therion
> *Sent:* Thursday, 7 June 2018 5:40 AM
> *To:* therion at speleo.sk
> *Cc:* Evaristo Quiroga <eqr at ecgracia.com>
> *Subject:* [Therion] Conflict between "extend ignore" command and 
> inverse legs
>
> Hi,
>
> I usually do my surveys doing inverse measures. I go ahead by 
> positioning the points, and doing the measurements with the distoX2 
> looking back (inverse) and finally do the splay measurements at that 
> destination point. My assistant is in origin point, and don't have 
> survey experience, is only putting the target in the anterior point . 
> With this I get all the data (leg and from and to splays) to be able 
> to draw the sketches.
>
> You can look a example the data results:
>
>         extend left
>         82 81 10.47 147.7 1.4
>         extend ignore
>         82 . 0.53 230.7 1.2
>         82 . 1.85 66.3 -6.5
>         82 . 1.19 45.5 60.1
>         82 . 0.65 300.5 -88.8
>         82 . 2.76 105.7 -5.8
>         82 . 4.54 127.2 -0.9
>         82 . 5.86 132.4 -2.1
>         82 . 1.52 182.2 -8.3
>         82 . 4.45 156.5 -3.0
>         82 . 2.62 20.4 -9.8
>         82 . 2.39 311.0 -6.3
>         82 . 3.95 324.1 -6.9
>         extend left
>         83 82 7.95 146.4 1.4
>         extend ignore
>         83 . 0.35 235.9 1.0
>         83 . 1.87 38.5 -6.1
>         83 . 0.94 5.9 76.3
>         83 . 1.06 40.4 -80.9
>         83 . 4.49 117.2 -5.0
>         83 . 2.61 85.7 16.9
>         83 . 2.87 107.9 -6.0
>         83 . 2.98 154.2 -11.3
>         83 . 3.94 148.4 -3.6
>         83 . 5.92 127.1 -5.7
>         83 . 3.67 327.8 -5.8
>         83 . 4.40 300.2 -12.5
>         83 . 2.65 334.7 -20.5
>         83 . 5.62 132.6 3.5
>         extend left
>         84 83 8.40 132.5 3.5
>         extend ignore
>         84 . 1.39 215.1 23.4
>         84 . 2.51 101.7 -0.8
>         84 . 1.89 195.1 67.5
>         84 . 2.00 100.7 -28.2
>         84 . 3.16 118.1 -2.7
>         84 . 4.68 149.7 1.0
>         84 . 5.15 62.5 2.7
>         84 . 2.12 33.9 -1.3
>         83 . 4.99 250.9 -7.6
>         extend left
>         85 84 5.03 234.4 -6.3
>         extend ignore
>         85 . 2.56 261.5 -0.7
>         85 . 1.34 276.4 31.0
>         85 . 1.05 282.5 -62.6
>         85 . 4.43 304.8 -1.1
>         85 . 5.80 314.2 -1.4
>         85 . 1.33 181.0 0.5
>         extend left
>         86 85 6.33 149.5 -2.0
>         extend ignore
>         86 . 1.19 252.8 -18.6
>         86 . 2.85 85.3 3.7
>         86 . 0.92 225.3 -84.7
>         86 . 2.23 136.3 10.5
>         86 . 3.96 135.4 -5.4
>         86 . 3.83 143.8 -8.1
>         86 . 2.25 203.4 -10.9
>         86 . 3.50 186.7 -8.6
>         extend left
>         87 86 3.05 187.0 -8.7
>         extend ignore
>         87 . 2.59 223.7 -18.5
>         87 . 1.09 32.0 -1.2
>         87 . 1.67 183.2 59.1
>         87 . 0.58 315.6 -83.5
>
>         extend right
>         88 87 7.46 330.8 -3.4
>         extend ignore
>         88 . 0.77 66.7 4.2
>         88 . 0.47 257.5 -7.8
>         88 . 2.56 326.1 74.5
>         88 . 0.41 247.0 -80.9
>         88 . 1.85 127.1 15.2
>         88 . 0.96 104.7 4.6
>         88 . 0.85 207.2 1.2
>         88 . 4.20 343.3 -16.6
>         extend right
>         89 88 2.20 349.0 -20.5
>         extend ignore
>         89 . 0.95 43.1 -5.6
>         89 . 0.72 62.1 82.7
>         89 . 0.39 99.4 -77.6
>         89 . 0.89 324.9 -26.4
>         89 . 1.43 359.5 -23.5
>         89 . 1.08 72.7 -9.7
>         89 . 1.59 105.4 -3.8
>         89 . 2.56 125.6 -5.7
>         extend right
>         90 89 1.39 300.3 -13.8
>         extend ignore
>         90 . 0.46 62.7 -3.4
>         90 . 0.50 245.3 1.2
>         90 . 0.48 246.5 70.4
>         90 . 0.70 300.2 -82.3
>         90 . 1.74 184.4 -12.0
>         90 . 3.09 169.6 -9.1
>         90 . 3.69 166.8 -8.2
>         90 . 2.02 152.3 -17.2
>         90 . 1.40 132.2 -19.0
>         extend right
>         91 90 5.71 340.7 6.0
>         extend ignore
>         91 . 0.96 37.0 2.2
>         91 . 1.04 40.9 58.3
>         91 . 0.29 34.5 -56.7
>         91 . 1.48 338.9 -0.1
>         91 . 0.99 331.4 2.8
>         91 . 1.07 3.2 3.6
>         91 . 3.51 345.8 0.1
>         extend right
>         92 91 2.04 305.9 4.0
>         extend ignore
>         92 . 1.47 305.9 -11.0
>         92 . 1.06 301.4 45.1
>         92 . 0.43 339.3 -76.8
>         92 . 1.17 348.7 1.3
>         92 . 0.56 16.6 -9.2
>         92 . 0.57 270.9 -8.5
>         92 . 1.99 270.1 -7.4
>         92 . 1.56 230.3 -14.0
>         extend right
>         83 92 4.24 71.7 18.0
>       extend ignore  83 92
>
>
>         extend left
>         93 87 3.12 123.4 7.5
>         extend ignore
>         93 . 1.79 225.3 -3.2
>         93 . 1.70 49.9 -3.0
>         93 . 1.18 100.0 78.0
>         93 . 3.21 169.9 -2.6
>         93 . 2.09 88.5 -2.4
>         93 . 2.36 14.0 -2.1
>         93 . 3.78 347.3 1.9
>         93 . 3.62 300.1 -2.1
>         93 . 2.32 278.7 -3.8
>
> In this data I have a loop. The main passage is: 82-83-84-85-86-87-93. 
> And the secondary passage is: 87-88-89-90-91-92-83.
>
> When I compile the data and produce a XVI file, Therion is making the 
> secondary passage the main centerline, breaking the main passage leg 
> "87 93".
>
> I have tried to break the secondary passage with "extend ignore" 
> commands and is unsuccessful. I also tried to rename the connection 
> station and make "equate" sentence, and also is unsuccessful. I have 
> also interchanged the from and to station order.
>
> I thinks is a problem with the inverse legs data and the "extend 
> ignore" command.
>
> To avoid the problem I rename the leg "83 92" to "83B 92" breaking the 
> loop at the secondary passage. To export the plan I put and "equate 83 
> 83B", and to export the extended profile I comment this sentence.  It 
> works but it is a bit cumbersome.
>
> Someone has had similar problems with the "extend ignore" commands and 
> has found some solution for its correct use?
>
> Best regards,
>
> Evaristo
>
>
>
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