December 2006 - Therion

Re: [Therion] 0.4.0 ...
by ohc＠vt.edu 24 Dec '06

24 Dec '06

I would really like to merge repositories. My work is fairly independent of the current therion development so it should be trival to merge. My svn is not updated with the newest snapshot. The cmake currently only works under linux. :( This is mostly because I haven't had time to port it to Windows or OSX. I have only attempted port it to Windows once. After about 45 minutes of cursing my frustration at Windows, I decide I had better things to do... Also, I don't own OSX or a mac. This makes it sorta hard to port/test on that platform. I can get access to OSX through school but I fear it will be a big pain to get it working. Steelwool

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Why no rock point symbol?
by Wookey 22 Dec '06

22 Dec '06

There are point symbols for blocks and peddles and debris and roots and all sorts of things but not 'a rock' which would be a really well-used one if it existed... It's tiresome drawing the outline for a small rock, or a few of them. It should be at least somewhat dandomised in order to look good but even a standard (scaleable) rock would suffice. Is there a good reason why we don't have this? (you can tell when I start using therion again can't you :-) I'll have some more questions later ) Wookey -- Aleph One Ltd, Bottisham, CAMBRIDGE, CB5 9BA, UK Tel +44 (0) 1223 811679 work: http://www.aleph1.co.uk/ play: http://wookware.org/

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atlas map queries
by Wookey 21 Dec '06

21 Dec '06

I just made my first atlas map. I am getting the hang of it but note that there are a couple of problems. See http://wookware.org/mulu/terikanatlas.pdf (this is not at all finished - in fact it's a bit of mess right now but it illustrates the problems below) 1) There are various blank pages. Why is this? e.g. page17,18,19 2) Note that whenever the cave crosses the 'edge of atlas page' line there is a fill glitch: Left hand side page 1, Right hand uppper page 2 svn of dataset available at svn://wookware.org/mulusurvey (mail or IRC me for the password). These plots done on therion 0.3.10 as I am having problems with 0.4.0. More soon. Wookey -- Aleph One Ltd, Bottisham, CAMBRIDGE, CB5 9BA, UK Tel +44 (0) 1223 811679 work: http://www.aleph1.co.uk/ play: http://wookware.org/

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How do I change the water symbol
by Wookey 21 Dec '06

21 Dec '06

The xisting water shading sysmbol doesn't work at all well at small scales. The lines merge and I just get a black area for both open water and sumps. See http://wookware.org/mulu/terikan.pdf for an example of how bad it looks. We need to change the symbol so the lines get further apart at smaller scales, or perhaps make the default symbol just 'blue', as blue water makes a lot of sense. Can I do that? Not sure what to do for sumps in that case. darker blue? Changing the hatch-spacing with scale might be difficult. But if I just know how to to change it, then I can presumably redefine the symbol in my overall layout file which would have the desired effect. How do I change the water symbol? Wookey -- Aleph One Ltd, Bottisham, CAMBRIDGE, CB5 9BA, UK Tel +44 (0) 1223 811679 work: http://www.aleph1.co.uk/ play: http://wookware.org/

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Bug report: XTherion Map Editor crashes on Insert New Area
by Will Moffat 15 Dec '06

15 Dec '06

Bug report: XTherion Map Editor crashes on Insert New Area Tested on xtherion 0.4.1 dev snapshot 2006-12-06, WinXP Run XTherion, Map Editor New Insert Scrap Click Objects, select 'end of file' Insert New Area ... the Map Editor hangs OR open any map and press Control-A (since 'end of file' is selected by default) regards, --Will PS. Great software, keep up the great work! PPS. Is there a better place for Therion bugs than this mailing list?

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texlive support in therion
by Wookey 14 Dec '06

14 Dec '06

Hi guys, I have a (now rather old) wishlist bug #356368 from you kindly requesting therion support texlive. I would be very pleased to do this but feel that my tex competence is insufficient to decide what dependencies are needed, and whether and other changes should be made. So I am asking for help/advice. Therion is probably an unusual tex user in that it largely doesn't use it for text. It uses metapost to draw caves and pdftex to spit out PDF files. There is some text processing in the labelling and legends, where text macros can be included. See http://therion.speleo.sk/2D.php for some idea of the output. It also has an unconventional layout in terms of tex integration. Early releases included the metafont and tex files in the usual place in the distribution but this caused problems on non-debian platforms (particualrly windows and mac) so now the macros are included directly into the therion binary and squirted into tex/metapost by the program at runtime. This is not a very Debian way of doing things, but it makes installation easy on all platforms so I am a little reluctant to try and revert it all. I suspect none of this makes any difference to texlive support but I thought I should explain how things operate. Please continue the cross-post to the therion list if you have any 'does it use foo' type questions, as I probably don't really know. If someone could download the source and take a quick look to tell us which bits of texlive we should be depending on, or make suggestions from the above info, that would be very helpful, and I will include it in the 0.4.0 release I am just about to put in experimental. You can have a preview of it here: svn checkout svn://wookware.org/therion/ Although for the purposes of texlive compatibility I think the existing 0.3.10 in debian testing will be just as good. Thanx for your help. Wookey -- Aleph One Ltd, Bottisham, CAMBRIDGE, CB5 9BA, UK Tel +44 (0) 1223 811679 work: http://www.aleph1.co.uk/ play: http://wookware.org/

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Re: [Therion] SQL Export
by Thierry Gonon 05 Dec '06

05 Dec '06

Sorry, but the dxf produced by therion can't be read by GRASS. I've found a solution : I make the dxf export in therion. After that, I open it with CanvasX, and save it as a shapefile (.shp), that GRASS imports quite well !! I will describe it more precisely in the wiki in a few days !! Thierry Gonon 2 Place de l'Eglise 01150 LAGNIEU Tél : 04 74 34 49 26 Le 05/12/06 à 12:51, "Stacho Mudrak" <s.m(a)group-s.sk> a écrit : >> points measured at the station). This way, it could get the complete >> volume in my GRASS GIS, through nviz. Is it possible with therion, >> with some specific options or not ?? > >I am sorry, this is not yet possible. You may export 3D model in DXF >format, which GRASS should be able to read. If if does not help. we >need to upgrade SQL export. > >Regards, S. > > >

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Re: [Therion] SQL Export
by Thierry Gonon 05 Dec '06

05 Dec '06

OK !!! But in fact it's the standard dxf output from therion !! Thierry Gonon 2 Place de l'Eglise 01150 LAGNIEU Tél : 04 74 34 49 26 Le 05/12/06 à 20:25, "Wolfgang Zillig" <wolfgang.zillig(a)web.de> a écrit : >your dxf is only 2d! So you'll never get it into 3d. >Wolfgang > >Thierry Gonon schrieb: >> Thanks !! That could be great. With your converter, is the z coordinates set to 0 ?? >> I join my file... >> >> Thierry Gonon >> 2 Place de l'Eglise >> 01150 LAGNIEU >> Tél : 04 74 34 49 26 >> >> >> Le 05/12/06 à 17:59, "Wolfgang Zillig" <wolfgang.zillig(a)web.de> a écrit : >> >>> I also had problems with importing dxf into grass z=0. The dxf was >>> produced from survex 3d file. I also have a dxf to shp converter. If >>> you want I can try to convert one of your files. >>> I've never worked with watershed analysis so that I can't really help on >>> that topic. But I'm also looking for a way to get a nicer 3d model of >>> the cave, at the moment I only have a polygon plot... >>> >>> Greetings >>> Wolfgang >>> >>> Thierry Gonon schrieb: >>> >>>> Unfortunately, I can't use actually loch as I'm working on Mac !! >>>> And my current goal is to produce a tool for watershed and area that could be irrigated by ancient qanats (I'm archaeologist). >>>> >>>> The problem with my method is that the shape files produced by Canvas are all set to z=0... >>>> I have some ideas to solve this problem... >>>> >>>> Thierry Gonon >>>> 2 Place de l'Eglise >>>> 01150 LAGNIEU >>>> Tél : 04 74 34 49 26 >>>> >>>> >>>> Le 05/12/06 à 17:39, "Wolfgang Zillig" <wolfgang.zillig(a)web.de> a écrit : >>>> >>>> >>>>> I'm also a GRASS user! Quite handy tool to prepare elevation data and >>>>> airophotos for Loch. >>>>> >>>>> Wolfgang >>>>> >>>>> Carlos "Guâno" Grohmann schrieb: >>>>> >>>>> >>>>>> Real Nice!! Looking forward to see your how-to. Also good to know that >>>>>> there are other GRASS user in this list. >>>>>> >>>>>> Carlos >>>>>> >>>>>> >>>>>> >>>>>> On 12/5/06, Thierry Gonon <thierrygonon(a)mac.com> wrote: >>>>>> >>>>>> >>>>>> >>>>>>> Sorry, but the dxf produced by therion can't be read by GRASS. >>>>>>> I've found a solution : I make the dxf export in therion. After that, I open it with CanvasX, and save it as a shapefile (.shp), that GRASS imports quite well !! >>>>>>> >>>>>>> I will describe it more precisely in the wiki in a few days !! >>>>>>> >>>>>>> Thierry Gonon >>>>>>> 2 Place de l'Eglise >>>>>>> 01150 LAGNIEU >>>>>>> Tél : 04 74 34 49 26 >>>>>>> >>>>>>> >>>>>>> Le 05/12/06 à 12:51, "Stacho Mudrak" <s.m(a)group-s.sk> a écrit : >>>>>>> >>>>>>> >>>>>>> >>>>>>>>> points measured at the station). This way, it could get the complete >>>>>>>>> volume in my GRASS GIS, through nviz. Is it possible with therion, >>>>>>>>> with some specific options or not ?? >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>> I am sorry, this is not yet possible. You may export 3D model in DXF >>>>>>>> format, which GRASS should be able to read. If if does not help. we >>>>>>>> need to upgrade SQL export. >>>>>>>> >>>>>>>> Regards, S. >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>> _______________________________________________ >>>>>>> Therion mailing list >>>>>>> Therion(a)speleo.sk >>>>>>> http://www.speleo.sk/mailman/listinfo/therion >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>> >>>>>> >>>>>> >>>>> _______________________________________________ >>>>> Therion mailing list >>>>> Therion(a)speleo.sk >>>>> http://www.speleo.sk/mailman/listinfo/therion >>>>> >>>>> >>>>> >>>>> >>>> _______________________________________________ >>>> Therion mailing list >>>> Therion(a)speleo.sk >>>> http://www.speleo.sk/mailman/listinfo/therion >>>> >>>> >>> >> > > > >

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SQL Export
by Thierry Gonon 05 Dec '06

05 Dec '06

Hi everybody, Here's my problem : In my .th file, I have the LRUD datas, and I want to get, in the SQL export, the coordinates of the stations on the centerline and also the coordinates of the corresponding points (I mean the upper left, upper right, lower right and lower left points measured at the station). This way, it could get the complete volume in my GRASS GIS, through nviz. Is it possible with therion, with some specific options or not ?? Thank you very much Thierry Gonon 2 Place de l'Eglise 01150 LAGNIEU Tél : 04 74 34 49 26

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Surveying Maze Caves
by Jonathan Prouty 02 Dec '06

02 Dec '06

Hello all, I have a question regarding surveying (and mapping) extremely mazy multi-level caves. There is a cave near my home that has never been mapped, I assume due to it's extremely mazy nature. I am considering taking it on as a project, however, I have no idea how to survey it. Do any of you have advice as to how to best manage such a survey? I imagine I will have to be extremely careful with how I create scraps in therion, as well. I can think of several places in the cave that have 5 or 6 passages all meeting in one small room. Any advice would be greatly appreciated. Thanks :-). Sincerely, Jonny Prouty

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