- Therion - speleo.sk

Point with entrance coordinates
by Bruce Mutton 02 Jul '18

02 Jul '18

> I am very pleased with the use and the outputs of Therion. > However, for the map views and/or elevation (projected or extended) views, it always seems to me that there is a lack of a convenient way to add the entrance(s) coordinates somewhere. It could be inside the header, or near the given entrance on the drawing. Funny thing. Someone just asked me about this sort of thing yesterday. I don’t have a solution, but would like to encourage anyone who would like to make more metadata available to tex, so that people can add it to custom headers, maps or atlas’. One similar thing that comes to mind is something Therion does not yet track as metadata, the locality or region that the cave is in. I see in that recent Tragaero’ pdf Xavier has what I suspect might be a custom variable he sets in a layout (I’m guessing) and displays with a customisation of the standard header. I might see if I can also do that, as there seems to be some interest locally. Bruce

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Point with entrance coordinates ?
by Xavier Robert 29 Jun '18

29 Jun '18

Dear all, I am very pleased with the use and the outputs of Therion. However, for the map views and/or elevation (projected or extended) views, it always seems to me that there is a lack of a convenient way to add the entrance(s) coordinates somewhere. It could be inside the header, or near the given entrance on the drawing. I think that this is an information that needs to be on a cave map. Some times ago, I tried to modify my header to add that information, but I could not find the right tex variables corresponding to the entrances coordinates. For the moment, I am always adding them by hand with the point « label » (see example in attachement). This solution does not convince me because this is not linked to the data I entered in the .th file. I am thus looking for a way to add those coordinates in a map, preferentially with a new point definition that read the coordinates from the survey data and print it to the map. What would be great is to also have an option to be able to print the coordinates on the map either in the map projection system (defined in the layout/thconfig) or in geographic coordinates (point u:coords -entrance <entrance_names/fixed_point> -latlong for instance?). Does anyone have an idea on how to do that ? Thanks for your lights, Cheers, Xavier

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Problems with KML-File and PDF-Display
by Markus Boldt 26 Jun '18

26 Jun '18

Hello, I have some Problems with a "spezial" presentation. I need that presentation as overlay Google-Earth (KML). The PDF works but there is another displaying of the right part in the PDF as in the drawing (th2-File). The "walls" respectively the area is moved In the KML-File the right part of the drawing is completely missing. What is happening? I don`t see the fault. Can anyone help me please. Greetings Markus Necessary Files attached

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Tex variables to report according to cs, projection type and angle
by Bruce Mutton 25 Jun '18

25 Jun '18

Hi all I was just trying to make a new header definition that could report appropriately, dependant on presence of a coordinate system, plan, extended or projected elevation. It was mostly progressing OK until I realised I was pinning my hopes on using the metapost ATTR__elevation variable in a block of tex code. That and my very poor grasp of tex Boolean testing ( \if ATTR__elevation is probably the wrong syntax) mean that I am probably doomed to fail. Since I have got this far, I may as well ask a few questions.. In the code below. Is there a tex variable equivalent to the ATTR__elevation metapost variable? Is it possible to differentiate extended elevations from projected elevations (and plans) with tex? For example, can we determine the projection angle of a projected elevation? How to format the magdecl output to just 1 decimal place? Bruce # % print coordinate system and projection related information \if ATTR__elevation % print elevation specific text %THIS TEST ALWAYS FALSE?? # % extended elevation {\the\legendtextsize\ss {Idealised elevation} \par} %' looking generally East' %this whole line probably redundant # % projected elevation \edef\tmp{\the\outcsname} \ifx\tmp\empty %ie if no cs {\the\legendtextsize\ss {Elevation looking xxx deg magnetic}\par} %NEED TO SEE IF PROJECTION ANGLE AVAILABLE TO TEX \else %there is a cs {\the\legendtextsize\ss\the\outcsname { elevation looking xxx deg}\par} %NEED TO SEE IF PROJECTION ANGLE AVAILABLE TO TEX \fi \else % not ATTR__elevation % print plan specific text # % plan \edef\tmp{\the\outcsname} \ifx\tmp\empty %ie if no cs %{\the\legendtextsize\ss {Plan projection (not georeferenced)}\par} %remove preceding % for redundant long form {\the\legendtextsize\ss Arrow points to magnetic north} \else %there is a cs \the\legendtextsize\ss\the\outcsname %{ plan projection}\par %remove preceding % for redundant long form \edef\tmp{\the\northdir} \ifx\tmp\empty \else {\the\legendtextsize\ss { arrow points \the\northdir { north}}} % grid or true north \fi # % Could report declination here \edef\tmp{\the\magdecl} \ifx\tmp\empty \else {\the\legendtextsize\ss\the\magdecl { deg magnetic declination}\par} %HOW TO LIMIT TO ONE DECIMAL PLACE? \fi \fi \par\par \fi % ATTR__elevation % end plan Above code produces the top couple of lines of this header snapshot. It should be different depending whether it is a plan or elevation, but at present is always this way. However the coordinate system test does work properly.

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WG: Wanted: Flag to exclude certain legs from loop closure algorithm
by Michael 21 Jun '18

21 Jun '18

Hello Ben, Thanks for the hint to use "SD" but I need some more help with that. For example, I want *only* leg from WGB27 to WGB28 to exclude from modification by Therion's loop closure algorithms. What statements do I need to insert at what places to ensure that? data normal from to length compass clino ignoreall WGB26 WGB27 20.5 30 0 WGB27 WGB28 17.1 95 0 WGB28 WGB29 9.5 120 0 Michael.

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How to properly scale xvi for using as a background image for drawing
by Marco Menchise 19 Jun '18

19 Jun '18

Hello, is there a simple way to scale .th2 scraps to make they perfectly match the scale factor of a .xvi file used as background image in xtherion? I want to edit a set of scraps (which are contained in a single th2 file) while having centerline and splays as a background image. So I usually generate the .xvi file from centerline data and load it as a background image of the scrap in xtherion. If the scraps don't have the same scale factor of the background I'm not able to superimpose them and edit the drawing. How to make they match? Should I edit .th2 files by hands and do some calculations? Could someone please clarifiy how Therion manages scale factor of scraps? My scraps usually contain stations so I'm quite sure I don't have to change the "-scale" option of the scraps. Thanks, Marco

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Line mark?
by Markus Boldt 17 Jun '18

17 Jun '18

Hi, what means the error: line mark not a keyword -- scrap-21-Wand-L-ob:0@Steeb-GS-01 when I use the join-command? Regards Markus

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Wanted: Flag to exclude certain legs from loop closure algorithm
by Michael 14 Jun '18

14 Jun '18

Hello, When therion detects loops, it applies a loop closure algorithm, which distributes the error across all legs of a loop. Is there a command or flag to exclude certain legs (i.e. centerline segments) from loop closure algorithm, so that they are not changed? I searched the Therion book and the Wiki FAQ, but couldn't find that information. Michael

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Therion and vtk7.1
by Philip Balister 11 Jun '18

11 Jun '18

Anyone build therion with vtk7.1 on Fedora? It feels like some vtk libraries have new names. Philip

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needed double shot - exclude from cave length
by Markus Boldt 11 Jun '18

11 Jun '18

Hello, if I have a leg where I need to separate shots (from the one point I don`t reach a continuative part) and I want to exclude the one from the calculation of the cave-length. What have I to write in my .th-File in the data-lines to exclude it from the calculation of the length but not from the centerline? I think it is simple, but I have found no idea in the wiki. Regards Markus

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