- Therion - speleo.sk

Cave Surveying and Therion Training Weekend in Mendip, UK at end of March
by Footleg 24 Feb '15

24 Feb '15

I'm running a cave surveying and drawing up training course in Mendip (Somerset, UK) on the weekend of 28-29th March. Covering DistoX and Therion. Reply to me if interested. Limited to 12 places, first come first served. (£10 deposit to book a place. £20 total per person to cover travel and caving hut expenses of trainers). Footleg

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MacOSX error and solution: ImageMagick after upgrading from Mt.Lion to Mavericks
by Martin Sluka 23 Feb '15

23 Feb '15

To generate Thbook with all samples is necessary to convert pdf files from samples directory. But in Maverick or Yosemite there is error when installing ImageMagick by Brew: Why is ImageMagick trying to load JPG coder at /usr/local/Cellar/imagemagick/6.8.8-9/lib/ImageMagick//modules-Q16/coders/jpeg.la? Why the double slash after ImageMagick// ? I came across this issue too when upgrading from Mt.Lion to Mavericks. I found an issue in homebrew's github repo. The fix that worked for me was: $ brew uninstall imagemagick $ brew install imagemagick --build-from-source m.

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And another very unusual problem
by Martin Sluka 21 Feb '15

21 Feb '15

This the beginning of .th file survey radavc_20141231_ms_a input radavc_20141231_ath2.th2 #input radavc_20141231_aEe.th2 map radavc_20141231_aM.map -projection plan radavc_20141231_aSP1 radavc_20141231_aSP2 break radavc_20141231_aSP2 endmap comment map radavc_20141231_aME radavc_20141231_aSE1 endmap endcomment centreline When I tried to compile it I received next error: "missing survey before map command“ The problem was in line: input radavc_20141231_ath2.th2 because -th2 file from some reason end with line: scrap xxx without line endscrap so all lines after input were used as part of scrap. m.s.

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Re: [Therion] Joining old and new surveys
by Steven Tucker 20 Feb '15

20 Feb '15

Thanks for the help with this. The long term plan is to redo the entire survey, but for now a simpler solution was needed. Bruce's suggestion of creating new centerline data from the old survey gave me an idea. After already redrawing the survey on therion and adding scale etc, I created a single fake shot from the entrance to the new point. Works perfectly and very quickly. Steven

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extended doesn`t works in the right way
by Markus Boldt 20 Feb '15

20 Feb '15

Hi to all, I have following problem with a very small cave and I doen`t find the mistake. The cave has only one shot. The map as plan works ok. But the extended presentation doesn`t works. The shot has a plus clino, but Therion does it to minus AND the whole cave on top. What is wrong? As attachment there are the *.th, *.th2 and my config file. I am sure someone will find the mistake. Regards Markus Working under WIN7, Therion 5.3.14

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wall coloring
by Marco Corvi 19 Feb '15

19 Feb '15

this is for kevin's request. not a solution, just a proof of concept ... (without important details) to color the wall you can re-define l_wall with a code metapost in the layout, passing the R,G,B values after the path. next set the layout color map-fg altitude to have the altitude stored in the scraps. (see sample thconfig) finally have therion write the parent scrap R, G, and B, after the wall path, and use 0,0,0 when it writes the scrap. (see howto) i'm attaching also the output cave.pdf. ... i'm not sure how useful wall-coloring may be ... anyways i leave up to therion developers whether to add a layout option to color wall, map-fg, or both. cheers, marco

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Therion Requests
by kevin dixon 17 Feb '15

17 Feb '15

Colour by Altitude Is it possible to colour by altitude along the wall edges only ? I do not want the scrap filled with colour, just a colour edging along the walls, either inside or outside and preferably able to define the colour width. Perhaps add a feature to the colour fill function to allow the user to specify complete fill or edge width plus inside/outside ? Cross Sections I have a major cave system in Survex with lots of splays that help define cross sections and I am in the process of converting it all to Therion again - was not happy with the first conversion due to my inexperience with Therion. Is it possible to create a cross section within Xtherion by selecting the station and only the splays that define the cross section ? That is, either the software automatically grabs the splays within a certain threshold perpendicular to the centreline or the software allows manual selection of which splays to use. My current method of manually creating cross section data subsets is time consuming. Thanks, Kevin

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Re: [Therion] Joining old and new surveys
by Graham Mullan 17 Feb '15

17 Feb '15

On Tue, 17 Feb 2015 08:15:16 +0200, Steven Tucker wrote Hi, I have an old survey from the 80s and I have new sections that I want to add with Therion. The old survey has no centerline data. I have redrawn the old survey in a th2 file and allocated 3 points which correspond to 3 different entrances. In the th file I have given coordinates to all 3 of those points. This works perfectly. I am struggling to connect the new section with this old section. The new section starts in a deep section of the cave and is far away from any of my currently defined points. What is the easiest way to connect the new and old sections? Steve As other contributors have noted, you need centreline data from your entrance fixed points to the start of your new section. There are only two ways to do this: Run a rapid centreline survey through the cave to the start of the new sections & hang everything off that. Or Digitise the old survey. I have successfully used Larry Fish's "Map to Dat" utility from "Compass" to do this, though you then have the irritation of converting Compass data to Therion (not difficult, just irritating). Both of these approaches work OK when producing 3D models, but I have found them rather less satisfactory when producing drawings as far various reasons the old drawings never seem quite 'right'. A third approach is to hunt down the original surveyors and see if the notes really have been lost or just left in a drawer somewhere. If the latter, rejoice, if the former then, well, smearing them with honey & lowering them into a pit of tiger ants seems about right. Alternatively, you could just bite the bullet & resurvey the whole system from scratch, we've had to do this once or twice & some of the largest systems in the UK have been/are being completely redone for these reasons. If you do take this path then please just ensure that your data is archived properly so no-one else is faced with the same problem in another 30 years or so. Graham

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Joining old and new surveys
by Steven Tucker 17 Feb '15

17 Feb '15

Hi, I have an old survey from the 80s and I have new sections that I want to add with Therion. The old survey has no centerline data. I have redrawn the old survey in a th2 file and allocated 3 points which correspond to 3 different entrances. In the th file I have given coordinates to all 3 of those points. This works perfectly. I am struggling to connect the new section with this old section. The new section starts in a deep section of the cave and is far away from any of my currently defined points. What is the easiest way to connect the new and old sections? Thanks, Steven

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Therion Will Not Start On New XP Install
by Nick Bairstow 16 Feb '15

16 Feb '15

Hi, I just re-installed XP Pro on a laptop, updated everything, installed Therion and I get the following error. This application has failed to start because the application configuration is incorrect.Reinstalling the application may fix this problem. I'm running Therion on two other XP machines with no problems.I have looked everywhere for an answer with no luck. What have I missed, any ideas. Thanks, Nick Bairstow

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