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

[Evaristo Quiroga]

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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