[Therion] Blended colour by gradient?

[alastair gott]

Hi Therion guys,

I've had a go at this today, is there anyone who would be able to automate the repetitive process to enable the software to implement this itself for a projected elevation?

and then add it as a background for a projected elevation survey.

I've taken a look at the therion mailing list and can see replies, so thank you for those, i'm going to need to sort my emails so I see your replies again 🙂

TH2
encoding  utf-8
##XTHERION## xth_me_area_adjust -129.0 -129.0 779.0 784.0
##XTHERION## xth_me_area_zoom_to 400

scrap cusseygradientSE65 -projection [elevation 0] -scale [0 0 650 0 0.0 0.0 65 0.0 m]

point 325.0 650.0 station -name 65

line wall -subtype invisible
  650.0 645.0
  650.0 655.0
endline

line wall -subtype invisible
  0.0 645.0
  650.0 645.0
endline

line wall -subtype invisible
  650.0 655.0
  0.0 655.0
endline

line wall -subtype invisible
  0.0 655.0
  0.0 645.0
endline

endscrap


scrap cusseygradientSE64 -projection [elevation 0] -scale [0 0 650 0 0.0 0.0 65 0.0 m]

point 325.0 640.0 station -name 64

line wall -subtype invisible
  650.0 635.0
  650.0 645.0
endline

line wall -subtype invisible
  650.0 645.0
  0.0 645.0
endline

line wall -subtype invisible
  0.0 635.0
  650.0 635.0
endline

line wall -subtype invisible
  0.0 645.0
  0.0 635.0
endline

endscrap


scrap cusseygradientSE63 -projection [elevation 0] -scale [0 0 650 0 0.0 0.0 65 0.0 m]

point 325.0 630.0 station -name 63

line wall -subtype invisible
  0.0 625.0
  650.0 625.0
endline

line wall -subtype invisible
  650.0 625.0
  650.0 635.0
endline

line wall -subtype invisible
  650.0 635.0
  0.0 635.0
endline

line wall -subtype invisible
  0.0 635.0
  0.0 625.0
endline

endscrap


scrap cusseygradientSE62 -projection [elevation 0] -scale [0 0 650 0 0.0 0.0 65 0.0 m]

line wall -subtype invisible
  0.0 615.0
  650.0 615.0
endline

point 325.0 620.0 station -name 62

line wall -subtype invisible
  650.0 615.0
  650.0 625.0
endline

line wall -subtype invisible
  650.0 625.0
  0.0 625.0
endline

line wall -subtype invisible
  0.0 625.0
  0.0 615.0
endline

endscrap


scrap cusseygradientSE61 -projection [elevation 0] -scale [0 0 650 0 0.0 0.0 65 0.0 m]

line wall -subtype invisible
  0.0 605.0
  650.0 605.0
endline

point 325.0 610.0 station -name 61

line wall -subtype invisible
  650.0 605.0
  650.0 615.0
endline

line wall -subtype invisible
  650.0 615.0
  0.0 615.0
endline

line wall -subtype invisible
  0.0 615.0
  0.0 605.0
endline

endscrap


scrap cusseygradientSE60 -projection [elevation 0] -scale [0 0 650 0 0.0 0.0 65 0.0 m]

point 325.0 600.0 station -name 60

line wall -subtype invisible
  650.0 595.0
  650.0 605.0
endline

line wall -subtype invisible
  650.0 605.0
  0.0 605.0
endline

line wall -subtype invisible
  0.0 605.0
  0.0 595.0
endline

line wall
  0.0 595.0
  650.0 595.0
endline

endscrap



TH FILE
survey cusseygradients

centreline
  cs OSGB:SK

  station 65 "main ent." entrance
  fix 65 16350  75190  244
data normal from to length compass clino
0 1 1 0 90
1   2 1 0 90
2   3 1 0 90
3   4 1 0 90
4   5 1 0 90
5   6 1 0 90
6   7 1 0 90
7   8 1 0 90
8   9 1 0 90
9   10 1 0 90
10  11 1 0 90
11  12 1 0 90
12  13 1 0 90
13  14 1 0 90
14  15 1 0 90
15  16 1 0 90
16  17 1 0 90
17  18 1 0 90
18  19 1 0 90
19  20 1 0 90
20  21 1 0 90
21  22 1 0 90
22  23 1 0 90
23  24 1 0 90
24  25 1 0 90
25  26 1 0 90
26  27 1 0 90
27  28 1 0 90
28  29 1 0 90
29  30 1 0 90
30  31 1 0 90
31  32 1 0 90
32  33 1 0 90
33  34 1 0 90
34  35 1 0 90
35  36 1 0 90
36  37 1 0 90
37  38 1 0 90
38  39 1 0 90
39  40 1 0 90
40  41 1 0 90
41  42 1 0 90
42  43 1 0 90
43  44 1 0 90
44  45 1 0 90
45  46 1 0 90
46  47 1 0 90
47  48 1 0 90
48  49 1 0 90
49  50 1 0 90
50  51 1 0 90
51  52 1 0 90
52  53 1 0 90
53  54 1 0 90
54  55 1 0 90
55  56 1 0 90
56  57 1 0 90
57  58 1 0 90
58  59 1 0 90
59  60 1 0 90
60  61 1 0 90
61  62 1 0 90
62  63 1 0 90
63  64 1 0 90
64  65 1 0 90
endcentreline

input cusseygradients.th2

map m1s -projection [elevation 0]
cusseygradientSE65
cusseygradientSE64
cusseygradientSE63
cusseygradientSE62
cusseygradientSE61
cusseygradientSE60
endmap

endsurvey


Regards,
Alastair Gott.
________________________________
From: alastair gott <alastairgott at hotmail.com>
Sent: 07 October 2020 12:27
To: therion at speleo.sk <therion at speleo.sk>
Subject: Blended colour by gradient?

Hi therion users,

One of my friends has asked me whether it’s possible to colour an elevation survey by a blended gradient rather than a discrete scrap by scrap basis.

I thought about it, but I don’t have the expertise in metapost, would it be possible to metapost a gradient which is predefined one colour through the normal rainbow of therion colours to the final colour and then bound this by the top and bottom of the cave.

Then insert this gradient as a fill cave fg user.

Just a thought?

I know John Stevens has some good success with the Agen allwedd survey in South Wales (uk) but I think his solution relied upon the 1 colour for one scrap method, though my memory could be wrong.

Regards,
Alastair Gott,
Alastairgott at hotmail.com

Sent from my iPhone
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