June 2015 - Therion

"\legendbox" "\loadpicture" and absolute paths
by rowena 14 Mar '21

14 Mar '21

Hello, I am using the "\loadpicture" capability in "\legendbox" constructs to include map sections, elevations, etc. It all works nicely on my PC where I am using relative paths to the pdf files. My club has a desire to archive the map data for posterity - ie if my pc dies or I go walkabout, the map data should still be available so that others can add to the maps as they are extended. I would prefer to have the images included using relative pathnames, rather than absolute pathnames, so that future explorers can download the map data and extend it, without having to duplicate my file hierarchy. How can I include relative paths in the \loadpicture functionality? Thanks, Rowena

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Import a scrap into another scrap (or th2-file)
by torstein finnesand 11 Oct '17

11 Oct '17

Hi fellows, Sometimes I realize that two scraps should have been one (for instance scrap A in A.th2 should have been a part of scrap B in B.th2), in particular when it's difficult to join them. It's easy to insert the xvi file into the scrap B file. But I have to draw it again. Is there any workaround here? Torstein Finnesand Norway

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Therion's Loch features (incognito) on NZ TV
by Bruce 19 Oct '15

19 Oct '15

Loch model of 39 km cave features in this TV news clip at 3:47 (Me carrying two packs on the opening still, and stuck at 2:00) http://www.3news.co.nz/Deepest-cave-discovered-in-our-backyard/tabid/817/art icleID/330973/Default.aspx Centreline data has been processed for the last few(?) decades with a home-made unix application that uses proprietary routines, so will only live while Jonathan is with his current employer. As you might have guessed, an 'export to Therion' routine is being worked on. Bruce

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Forcing Therion to print centerlines only
by Michael 02 Aug '15

02 Aug '15

Hello, Having the need to produce a map showing only centerlines with station names, I forced Therion to produce such by removing all "input *.th2" statements. With growing number of such statements in various files this becomes unmangeable. Is there a way (a switch) to force Therion to print only all centerlines, without any scraps or sketches? I tried "unselect" but that command appears not to work. Michael.

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Making potractors
by Wookey 24 Jun '15

24 Jun '15

What is the best way to make therion potractors? Years ago Martin S sent me some really nice robust ones. Ones I have tried to make since (by printing onto acetate and laminating the result) do not work well because my laminating sheets only stick to themselves, not the protractor material, so it opens up at the baseline and delaminates. Is it possible to print on one side of a laminating sheet then put two sheets through the laminator to encapsulate, or will my laminating sheet just melt in the laser printer? Maybe that could be done, but printed in a (cold) inkjet printer, so long as no water ever got in? There is also the matter of the correct 'floppiness/stiffness'. MartinS were nice and stiff (but robust). Laminator/acetate ones are rather floppy. So, how does everyone else do it? Also http://therion.speleo.sk/protractor/index.php only links to a 1:200 protractor. It would be useful to keep others available there and save people editing the metafont. Ah-ha - turns out that we have 1:250 and 1:500 versions carefully preserved on the CUCC site! http://expo.survex.com/templates/therion1_250.pdf http://expo.survex.com/templates/therion1_500.pdf And there are some US-units ones online. Collecting them would be a useful little task. Wookey -- Principal hats: Linaro, Debian, Wookware, ARM http://wookware.org/

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MetaPost include relative path
by Henry Bennett 16 Jun '15

16 Jun '15

Hi, Whats the syntax for including code from a sub directory in MetaPost? My project has a subdirectory of code snippets in {doc root}\code The MetaPost input command works great when I reference the entire directory location eg (input "c:\users\henry\documents\survey\cave\code\filename") but won't accept any form of relative address that I can see. Doesn't make it very portable. Any ideas Thanks Henry

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Turned through Angle Survey
by Graham Mullan 10 Jun '15

10 Jun '15

Martin I think Andrew is referring to a Total Station survey, though I presume that data from an old fashioned theodolite would look much the same. What he needs, I guess, is an automatic way of correcting (calibrating?) the horizontal angles with regard to North when the traverse is connected in to fixed points at either end. Graham

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Turn through angle data format
by Andrew Atkinson 10 Jun '15

10 Jun '15

May I add this to the wish list. every few years I get data in a land survey format, which often does not use a magnetic survey but a turned through angle (does it have a proper name?) I guess it is not that easy, otherwise this sort of think usually gets done. Readings from two stations look something like this. OBSERVATIONS ------------ LOCATION : Wookey JOB NO : 164 DATE SURVEYED: 19 MAY 2015 16: FILE : TI16401 SURVEYOR : D Factors: EDITED STN : 1 H.I. 1.410 PNT HA VA SDIST TGT CODE DIMS REMARKS 1 0.0000 90.1539 59.621 1.510 SS00000N ~ #SS 2# 2 217.5531 73.4609 16.824 1.655 SS00000N ~ #SS 3# 3 359.5958 90.1545 59.621 1.510 SS00000N ~ #SS 2# 4 217.5524 73.4617 16.825 1.655 SL00000A ~ ~ 5 359.5959 90.1538 59.621 1.510 SS00000N ~ #SS 2# OBSERVATIONS ------------ LOCATION : Wookey JOB NO : 164 DATE SURVEYED: 26 MAY 2015 20: FILE : TI16403 SURVEYOR : D Factors: EDITED STN : 2 H.I. 1.420 PNT HA VA SDIST TGT CODE DIMS REMARKS 12 0.0000 94.1903 14.233 1.400 SS00000N ~ #SS 2A# 13 355.2701 89.3842 59.615 1.420 SS00000N ~ #SS 1# 14 0.0004 94.1754 14.233 1.420 SS00000N ~ #SS 2A# I think this is how they come out of the machine, but cannot be certain. So the first set of observations are all from station 1 (well technically 1.410 above station) so the first line of that set is a reading to ss 2 or station 2, which has been set at 0 and ss 3 is 217 degrees from that reading (No relation to North.) Obviously this type of data cannot be used without 2 statoins of know possition somewhere on the traverse. We have 2 ends of magnetic survey to connect this survey too. Anyway it would be great to get this data into therion/survex, the tunnellers of Wookey really need it, 15m in and they are not sure what direction to go..... Slight formating problem that might also be nice to solve, although it is messy, and not to be encouraged is that 217.5531 means 217 degrees, 55 munites 31 seconds thanks Andrew

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Trapped in Therion on Error
by Adam Sampson 05 Jun '15

05 Jun '15

As I'm learning I occasionally have errors in my .th2 file. When I open a file with a problem in the therion editor it gives me an error, an error that prevents me from editing the file or from closing the program! And this is for a file that actually compiles (with warnings) as long as I don't open it in the editor. Since I can't edit the file in the editor I'm using trial and error to clear it up in a text editor. But it's a pain to do trial and error when I get stuck with a non-responsive program each time I have an error. Is there a way to make it so that I can at least close the program on error? I'm on Windows and in order to close the program I have to open task manager and click "End Task" several times before Windows realizes it has to help me close the program the hard way. Adam Sampson(502)509-5066caver.adam@outlook.comwww.kentuckykarstconservancy.com

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Re: [Therion] From Chris Milne a bit of advice re survey files
by Andrew Atkinson 02 Jun '15

02 Jun '15

Chris I have copied in the Therion list as I do not know much (anything) about OSX. So the 3d file was probably produced by therion, but is a survex format, from our brief conversation, I believe you now have survex installed, which gives you aven to view the 3d. As for Therion instal, this will install loch which allows the viewing of loc files, which can have 3d passage shape, surface overlays and the like, hopefully someone else can help you with the install, I think there is, or someone is working on a package Andrew On 25/05/15 20:56, Chris Milne wrote: > Hi Andrew hope your well. The survey files we are receiving .3d are presumably created on therion. I'm using a Mac and wondered if there was a way of previewing and printing on any viewer which words on osx10. Therion doesn't appear to be so straightforward to install on OSX. Alternatively is there a converter to a different file format ie PDF. > > Chris Milne > Photographic Tutor > Tel 01454 416937 > Mob 07920 116492 > Facebook Chris Milne > Sent from my Ipad >

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