July 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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Finding undated surveys
by Andrew Atkinson 30 Jul '15

30 Jul '15

Hello I am getting the message warning -- unable to determine magnetic declination for undated surveys Now I am reasonable sure that all the surveys are dated, as I use topParser and it puts it in automatically. however I would like to check, I cannot find a way of finding which surveys Therion finds to be undated, Is there an easy/built in way, Maybe it would be good if Therion listed them in the output log thanks Andrew

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KML Issues
by Nick Bairstow 28 Jul '15

28 Jul '15

My "export model -o ##NAME##.kml" exports work fine but "export map -o ##NAME##.kml" sometimes works perfectly but other times I get small pieces/part of a cave missing. I have checked for walls/pillars with the tick mark the wrong way round and all look OK. I notice that other people have had issues with this a while back and even noticed that Andrew stopped using kml output. In all cases the compile runs with no warnings and the pdf output is fine. Am I wasting my time, is there a better way to get similar results. Also on the "model" outputs is there a way to show just centreline and not the splays, I see this question has been asked before but I could not see an answer. I really quite like the kml outputs as you can get the evenings survey into Google earth before the first pints half way down whist sat in the pub afterwards -not always 100% positioned at this point but it still looks good - Nick.

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Re: [Therion] Projected Elevation Output
by Bruce 19 Jul '15

19 Jul '15

Further to Xavier's comment... All the (relevant) elevation scraps, maps and exports will need to have -projection [elevation 90] as part of their definition. (If you just specify "-projection elevation" then Therion will default to an elevation looking 0 deg, or north for that object) Many versions back I discovered that the direction must be specified exactly the same way in each scrap, map and export definition, I presume it is still the case. ie -projection [elevation 90] is not recognised by Therion as the same as -projection [elevation 090], and so this can be a reason why some scraps or maps are dropped from an export. Bruce

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Projected Elevation Output
by Nick Bairstow 18 Jul '15

18 Jul '15

I am trying to draw a 90 degree elevation. All seems well but the PDF output shows the topo survey as shown in the .th2 file background and not the walls etc that I have drawn. I can't find any reference to this problem in the available information or archives and after 2 hours have decided to go for beer. I'm obviously missing something anyone got any ideas. The extended elevation works perfectly. Nick.

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Additions To Pocket Topo Data
by Nick Bairstow 17 Jul '15

17 Jul '15

Hi, If I bring Pocket Topo data/sketch into Therion with Top Parser and draw up the survey and then go back to the cave and add more stuff to the original topo file using say the continue here option is it possible to somehow easily get/replace the amended topo data into the original .th2 file and retain the scrap work already done or do I have to create a new survey. Obviously I can amend the .th with a text editor. I sometimes find myself waiting to draw things up whilst I get time to go back to get the last bits of the survey done so everything is in one file and I don't have to join it all together. Sorry if this is a bit of a stupid question but if you don't ask you never find out. Nick Bairstow

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Revise command for previews
by Andrew Atkinson 12 Jul '15

12 Jul '15

On page 31 of the thbook there is the very innocent line Use the revise command if you want to add maps from higher levels to the preview. This probably helps with one of my problems BUT Further reading of revise on pp33 revise’ Description: This command is used to set or change properties of an already existing object. Syntax: The syntax of this command for object created with “single line” command is revise id [-option1 value1 -option2 value2 ...] For objects created with “multi line” commands is syntax following revise id [-option1 value1 -option2 value2 ...] ... optionX valueX data ... endrevise Context: all Arguments: The id stands for object identifier (the id of an object you want to revise must always be specified). Sorry that is not getting me anywhere, could someone please give an example, preferably relating to the level of maps thanks Andrew PS I cannot get preview/offsets to work for projected elevations, should they, the thbooks seems to say any map!!

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