August 2018 - 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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extend
by Marco Corvi 02 Jun '20

02 Jun '20

i think that extend should take values in the interval [-1,1], ie also fractional values, plus some special value such as "ignore" to open loops, and "undefined" to let the program choose, because it's a nuisance to enter a decimal number for every shot (legs + splays). therion uses the left/right normal/reverse etc. solution, and users should be allowed to set extend also for splays, if they need to. for now, let's use left/right/vert, and ignore only to open loops btw, are vertical extend considered in the computation of the cave length by therion ? marco

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Page Size
by Markus Boldt 31 Jul '19

31 Jul '19

Hello, how is it possible to "say" Therion to make a PDF-File with for example a Size of DIN A4 (21 x 29,7 cm)? I have tried Page-setup 21 29.7 20 29 0.1 0.1 cm it doesn`t work I have tried Size 21 29.7 cm It doesn`t, too The command is ignored. Greetings Markus

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TerrainTool
by Graham Mullan 28 Jun '19

28 Jun '19

Mike McCombe's TerrainTool has been fixed and is available again from http://www.ubss.org.uk/terraintool/terraintool.php Download and enjoy. It may not use the latest data but it remains the most straightforward way of adding topographic detail to Therion 3D models. Graham

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Therion and DEM
by Xavier Robert 24 Jan '19

24 Jan '19

Dear all, For a quite large project, I am using a relatively high-resolution DEM (i.e. 1 px = 1 m), and I am trying to use it within Therion to produce a .lox-3D file. I am however facing some problems: If I export the full resolution DEM to a .th file (6540*4307 cells) with the line "grid 325816.2990788577 5106250.599820679 1 1 6540 4307 ». I have the error « therion: error -- dem.th [14] -- line too long ». This line 14 correspond to the first row of the DEM. ASC parameters are « #NCOLS = 6540, NROWS = 4307, XLLCORNER = 325816.2990788577, YLLCORNER =5106250.599820679, CELLSIZE = 1.0 » If I export the DEM with a 5 m pixel resolution (1308*861 cells) (with the line "grid 325816.299079 5106250.59982 5.001161440185831 5.001161440185831 1308 861 », I get the same error, If I export the DEM with a 10 m pixel resolution (654 * 431 cells) (with the line « grid 325816.299079 5106250.59982 9.996519721577727 9.996519721577727 654 431 »), everything compiles OK and the result is quite OK (https://www.groupe-speleo-vulcain.com/wp-content/themes/custom_theme/3d/JB.… ; be patient, it takes time to load), but not with the full resolution. The process to build each .th DEM is exactly the same, I do not touch any end of line. I edit the .asc DEM with vi to translate it into a .th file. I thus suspect that there is a size limitation for the DEM in Therion, I imagine a limitation in the number of row/columns of the DEM. Is that true ? If yes, what is this size limit for DEMs ? As anyone an idea how to overtake that and use the full resolution DEM ? Cheers, Xavier

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Scale dependant error when using area fills
by Tom Foord 20 Jan '19

20 Jan '19

Hi all I'm having some problems compiling a project which includes debris area fills. Depending on the exact symbol fill that I use, I am getting strange scale-dependant errors which seem to cause the compiler to loop endlessly until I force it to stop. I originally noticed the problem when using a custom area fill that I made by modifying the standard a_debris_AUT symbol fill. I've attached my modified metapost definition in the attached text file 'a_debris_WUG.txt'. The error occurs for any scale between 1:2000 and 1:4483 (outside of this range the project compiles fine). See attached output log 'Output log - a_debris_WUG.txt'. As you can see, the file seems to loop over and over again. Initially I thought this problem was specific to my custom fill, but then I noticed that I also get a similar error when using the standard a_debris_AUT fill, however this time the error only occurs when the scale is set to exactly 1:2000 (any other scale seems to be fine). See attached output log 'Output log - a_debris_AUT.txt'. Can anyone help with this problem? Thanks Tom

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DistoX2 waterproof case
by Bruce Mutton 29 Aug '18

29 Aug '18

While we are on the topic of DisoX2. Has anyone here tried these? https://www.facebook.com/DistoX2Case/ Any feedback? I have tried to contact Stanislav via the facebook page, but without any luck. I would like two, and I suspect there would be a market in New Zealand for at least few more. Regards Bruce

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Surface Contours
by kevin dixon 29 Aug '18

29 Aug '18

I have randomly distributed surface points from a Post Processed Kinematic GPS survey (accuracy ~10cm) and wish to calculate surface contours. The reason for doing this is to have detailed data for all the shakeholes. Would like to import the contours into Survex/Therion so these can be seen above the cave. Has anyone else done this and how ? My current thinking is to use the QGIS Contour tool to generate the contours and then import these into Survex/Therion as elevation strings using some intermediate data format yet to be decided. Thanks, Kevin

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extention at the rear of the Distox
by Bruce Mutton 28 Aug '18

28 Aug '18

Markus You might find the attached quick reference sheet helpful. Regarding adjustment of measurements in Therion, if you happen to have uncorrected disto measurements, you can use the calibrate statement to amend all measurements in a particular survey with a single short line. calibrate <quantity list> <zero error> [<scale>] ▷ set the instrument calibration. The measured value is calculated using the following formula: measured value = (read value - zero error) × scale. The supported quantities are the same as sd. ie length, tape, bearing, compass, gradient, clino, counter, depth, x, y, z, position, easting, dx, northing, dy, altitude, dz Bruce From: Therion <therion-bounces(a)speleo.sk> On Behalf Of Martin Sluka via Therion Sent: Wednesday, 29 August 2018 01:16 To: List for Therion users <therion(a)speleo.sk> Cc: Martin Sluka <martinsluka(a)mac.com> Subject: Re: [Therion] extention at the rear of the Distox Device Information The FUNC key can be used to show a sequence of information screens. FUNC key in idle mode shows the first screen. FUNC again navigates from one screen to the next. Use the SMART key to return to the previous screen. Screen 4: Endpiece Offset Shows the actual endpiece offset in mm (-128 - 127). To change the level first press the PLUS and MINUS keys for 2 seconds to allow editing. Then press the PLUS or MINUS key to change the value. Changing the offset is useful for self-made endpieces or other cases where a non-standard reference is used. M. 28. 8. 2018 v 14:48, Markus Boldt via Therion <therion(a)speleo.sk <mailto:therion@speleo.sk> >: Hi, Evaristo and Martin have showed extentions for the Distox. It is a very good Idea. But what is with the so extended length of the distance? Must I change all measurings by hand in the list of Pockettopo or Topodroid or is there a possibility to “say” that to the distox by default? Thanks for the answers. Regards Markus BTW: The meeting at Ebensee was very good and interesting for me as a “only” user. _______________________________________________ Therion mailing list <mailto:Therion@speleo.sk> Therion(a)speleo.sk <https://mailman.speleo.sk/listinfo/therion> https://mailman.speleo.sk/listinfo/therion

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extention at the rear of the Distox
by Markus Boldt 28 Aug '18

28 Aug '18

Hi, Evaristo and Martin have showed extentions for the Distox. It is a very good Idea. But what is with the so extended length of the distance? Must I change all measurings by hand in the list of Pockettopo or Topodroid or is there a possibility to "say" that to the distox by default? Thanks for the answers. Regards Markus BTW: The meeting at Ebensee was very good and interesting for me as a "only" user.

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