Hi, this is a problem of 3D generation algorithm of therion...
If a wall is relatively far away from centreline, height and dimensions
interpolation algorithm "averages too much". To overcome this, you need to
play with dimensions data for stations (putting some arbitrary large
numbers there - see example) or using "point dimensions -value [up down]"
in 2D plan somewhere near wall that needs to be affected.
But these are not nice changes. We should modify 3D generation algorithm to
solve these situations correctly.
S.
On 15 February 2017 at 13:23, Philippe Vernant via Therion <
therion@speleo.sk> wrote:
> Hi guys,
>
> Here is the .th and .th2 file from a survey of a large chamber. What I
> don’t understand is why the line survey is outside below the chamber. Any
> advice on how to fix that ?
>
> Thanks,
> Phil
>
>
>
> _______________________________________________
> Therion mailing list
> Therion@speleo.sk
> https://mailman.speleo.sk/listinfo/therion
>
>
# 2016.06.05 created by TopoDroid v 3.1.1
survey test -title "Test"
centerline
date 2016.06.04
# declination 0.00 degrees
units length meters
units compass clino degrees
walls off
data normal from to length compass clino
extend right
0 - 6.92 140.9 0.2
0 - 9.02 171.8 7.1
extend left
0 - 4.31 203.5 -8.3
0 - 1.56 235.6 -16.0
extend right
0 - 4.36 95.7 -26.4
0 - 2.05 69.3 -25.9
0 - 5.80 110.8 -49.7
0 - 7.22 141.0 -55.7
extend left
0 - 9.17 187.4 -53.3
0 - 8.18 207.7 -68.7
extend right
0 - 13.11 115.4 -73.3
0 - 13.17 105.8 -73.8
0 1 17.30 175.1 -82.5
extend left
1 - 2.97 237.9 25.6
1 - 4.55 264.0 28.8
1 - 5.72 305.7 29.4
1 - 6.91 333.9 25.4
extend right
1 - 7.54 1.5 21.9
1 - 15.68 20.1 10.9
1 - 9.78 40.3 12.6
1 - 8.39 63.4 15.8
1 - 4.71 92.0 25.0
1 - 3.63 126.3 28.5
1 - 3.19 155.8 31.6
1 - 3.50 122.1 61.1
1 - 9.40 137.3 -17.1
1 - 19.01 130.0 -20.6
1 - 45.18 120.3 -17.8
1 - 21.47 121.2 -25.1
1 - 78.86 103.4 -24.9
1 - 81.04 90.7 -21.6
1 - 52.54 77.3 -20.9
1 - 44.48 74.6 -17.6
1 - 36.75 68.4 -15.6
1 - 75.90 62.5 -25.0
1 2 15.99 16.9 -24.2
extend left
2 - 17.85 297.6 7.5
2 - 14.74 295.6 26.7
2 - 14.43 289.5 50.6
2 - 10.28 306.8 73.0
2 - 11.29 333.0 52.6
2 - 19.53 329.2 21.9
2 - 25.92 316.8 8.8
2 - 34.97 339.0 5.9
extend right
2 - 22.31 5.0 14.0
2 - 13.19 12.6 34.8
2 - 20.65 21.6 3.5
2 - 32.13 21.0 -11.2
2 - 33.65 39.2 -17.2
2 - 31.03 45.7 -11.6
2 - 18.75 56.1 3.4
2 - 44.98 121.9 -10.4
2 - 29.90 119.2 -0.9
2 - 18.10 117.7 12.7
2 - 13.22 120.8 26.9
2 - 22.54 139.3 15.1
2 3 10.65 81.6 -31.5
extend left
3 - 14.19 357.6 -17.7
extend right
3 - 17.80 29.2 -28.7
3 - 4.76 41.9 -51.3
3 - 10.62 40.8 74.4
3 - 11.06 84.1 50.8
3 - 16.22 62.3 8.9
3 - 37.03 51.7 -11.6
3 - 29.60 43.3 -21.2
3 - 26.04 65.0 -27.7
3 - 66.50 81.8 -21.4
3 - 63.56 96.0 -18.7
3 - 64.02 96.3 -23.5
3 - 64.57 115.3 -9.6
3 - 31.38 116.0 -3.9
3 - 20.35 113.4 10.0
3 - 23.07 86.8 -33.0
3 4 23.06 76.1 -33.0
4 - 29.87 14.5 16.3
4 - 15.69 19.9 40.0
4 - 13.12 33.4 57.2
4 - 12.93 84.7 69.4
4 - 16.21 140.9 50.9
4 - 23.76 140.8 22.8
4 - 31.61 136.8 13.8
4 - 52.82 136.3 3.8
4 - 55.46 135.5 -6.2
4 - 0.98 94.5 -52.3
4 - 43.57 170.6 13.1
4 5 5.76 96.8 -16.4
5 - 26.15 23.1 4.9
5 - 18.76 27.2 17.7
5 - 13.19 46.5 35.5
5 - 12.49 86.5 42.9
5 - 14.14 77.7 18.7
5 - 19.02 74.2 3.2
5 - 26.41 54.3 -15.0
5 - 26.60 56.7 -14.1
5 - 29.97 95.5 -12.0
5 - 35.16 99.8 -10.1
5 - 37.14 97.5 -5.2
5 - 40.86 100.3 -4.8
5 - 42.24 101.7 0.5
5 - 41.12 101.5 5.6
5 - 43.58 103.4 -17.6
5 - 37.99 120.6 -13.6
5 - 43.51 123.4 3.6
5 - 44.54 127.7 9.9
5 - 17.77 107.1 -28.9
5 - 0.61 107.0 -28.8
5 6 17.78 88.7 -28.9
6 - 13.69 101.3 -13.8
6 - 14.00 44.6 20.3
6 - 16.79 59.7 19.1
6 - 22.11 68.0 -5.2
6 - 22.96 80.3 -13.5
6 - 20.40 86.6 -20.0
6 - 24.77 95.6 -7.3
6 - 25.54 105.4 6.7
6 - 29.25 112.8 32.7
6 - 26.65 147.0 39.8
6 - 34.44 162.0 32.0
6 - 45.91 168.0 23.1
6 - 51.12 167.3 13.8
6 - 47.10 161.6 0.4
6 - 34.91 143.7 -1.3
6 7 6.78 102.1 -21.2
6 8 21.54 178.0 0.2
extend left
8 - 18.57 264.6 73.8
8 - 20.67 218.2 58.2
8 - 25.39 191.3 40.4
8 - 2.29 287.7 -34.9
8 - 4.04 277.2 1.8
8 - 7.47 304.2 4.9
extend right
8 - 32.31 163.9 19.2
8 - 23.68 135.5 12.5
8 - 21.24 115.0 12.1
8 - 28.26 148.6 18.9
8 9 2.76 141.4 16.4
9 10 13.73 97.8 -11.4
10 - 32.23 9.1 3.1
10 - 10.60 20.8 3.9
10 - 5.93 47.9 6.4
10 - 5.90 74.7 11.3
10 - 5.47 105.6 15.9
10 - 7.73 138.9 11.3
10 - 9.60 158.4 10.6
10 - 18.34 177.6 13.4
extend left
10 - 28.49 191.6 18.3
10 - 26.56 195.0 42.6
10 - 23.85 190.8 56.6
10 - 23.30 200.6 71.4
extend right
10 - 24.42 159.4 86.4
extend left
10 - 34.28 187.7 89.0
extend right
10 - 35.20 23.0 85.8
10 - 34.78 29.2 79.0
10 - 24.55 46.0 74.1
10 - 32.48 33.1 73.9
10 - 31.71 18.4 71.2
10 - 31.15 8.5 64.2
10 - 26.80 4.6 51.3
10 - 32.42 17.7 55.3
10 11 24.40 160.6 86.4
data dimensions station up down left right
8 20 10 - -
9 20 10 - -
10 20 10 - -
endcenterline
input test.th2
endsurvey
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