February 2010 - Therion

Creating a namespace for an existing wiki page so it's images can be stored local to the page and not in the root
by Bruce 23 Feb '10

23 Feb '10

Hi Can anyone give me some pointers how to add a namespace for a wiki page that does not already have one? This would save me from having to load all my images into the root namespace thereby cluttering it up. I have tried to follow the examples at http://www.dokuwiki.org/namespaces but when I try it out nothing happens. Thanks Bruce

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Declination and coordinate systems
by Bruce 23 Feb '10

23 Feb '10

Hi I have been under the impression for the last couple of years, that the presence of a cs command in a high level *.th file (say an INDEX.th that ties together all the sub-surveys) would override any declination statements within the sub-survey *.th files. On investigating a peculiarity I find that the declination statements are overriding the cs statements, and that The Therion Book suggests this is the intended behaviour, as far back as 5.2.2 anyway. Has this behaviour changed since 0.5.x or is this a faulty memory relic of mine from my first dazed days as a Therion user? I guess this means I need to comment out all those approximate declination statements now! (Of course it is probably too late to change it now, but it would suit my workflow for drawing projected elevations (from paper sketches) if cs always overrode declination) Historical recollection anyone? Bruce

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Version 5.3 Change Request
by Carl Magnuson 22 Feb '10

22 Feb '10

I see version 5.3 was released today. Everything of mine compiles fine with the new version, but I did have to make one change to allow for the large number of scraps in my map. Is it possible to change line 1933 of thexpmap.cxx to the following to allow for maps with > 4096 scraps? fprintf(out->file, "warningcheck := 0;\n"); Carl

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export bbox
by Bruce 22 Feb '10

22 Feb '10

I'm not sure I understand the new bounding box feature. Therion Book 5.3 pp55 to57 I expect I could use syntax like , export bbox -output ../Outputs/MiddleEarth-bbox.txt however it gives an error like D:\Program Files\Therion\therion.exe: error -- thconfig-MiddleEarth.thc [84] -- unsupported export type -- bbox The summary on p57 suggests this might work, export special -output ../Outputs/MiddleEarth-bbox.bbox but the same type of error is encountered. Bruce

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Re: [Therion] FW: 2D output header title when therion can't decide which one to use
by dangle＠tomo.co.nz 19 Feb '10

19 Feb '10

Thanks Martin I have started my \legendcontent definition thus... code tex-map \legendcontent={% \hsize=\legendwidth \color[0 0 0]\the\legendtextcolor \ifnortharrow\vbox to 0pt{\line{\hfil\northarrow}\vss}\fi % original code commented out % \edef\tmp{\the\cavename} \ifx\tmp\empty \else % {\the\legendtextheadersize\the\cavename}\vskip1cm % \fi \edef\tmp{\the\cavename} \ifx\tmp\empty{\the\legendtextheadersize{Caves of the Flora Area}}\vskip1cm \else {\the\legendtextheadersize\the\cavename}\vskip1cm \fi % ... original code continues to end And it behaves precisely as per my original attempt. No errors, but also no map title if Therion is not able to identify a unique title. With multiple maps selected in my thconfig th_texts.tex gives... \cavename={\mainfont{}} With one map selected in my thconfig th_texts.tex gives... \cavename={\thfb\char70 \char108 \char111 \char114 \char97 \ \char67 \char97 char118 \char101 \char115 \ \char80 \char108 \char97 \char110 \mainfont{}} So I infer that \cavename is indeed empty when there is no unique map title, but the customised \ifx test is not working. Do I have the ifx syntax correct? (Martins example was split by a line feed inserted by the mail application so I am not sure) Do we have to dig deeper to find a solution? I notice the output produced has the appearance of having \vskip1cm applied regardless of the original \ifx test being true or false, but the 'true' result code has no \vskip1cm. Maybe this is a clue? Is there yet another definition that is overriding this code? Thanks Bruce

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XVI with sketch
by Vasily Vl. Suhachev 18 Feb '10

18 Feb '10

Hello I am used thconfig like this: ----- input "large_centerline_with_loops_closure.th" input "new_survey.th2" # sketches enabled select new_survey.whole_cave export map -fmt xvi -o new_survey.xvi -proj plan -layout-sketches on ----- Therion generated XVI of "new_survey", but without sketch image. If I deleting "select" command I get XVI+sketch, but XVI contained centerline of whole cave (approx 30 km), and XTherion work very slow. How to make XVI with sketch for part of large centerline? PS using Therion 5.2.14 -- WBR, Vasily

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Installation on Snow Leopard
by Dave Clucas 18 Feb '10

18 Feb '10

Trying to install v5.3 on Snow Leopard vives me this error. tclsh makeinstall.tcl MACOSX installation error: could not write /usr/bin/loch I seem to remember last time I installed Therion I had to remove some lines from a makefile but I can't remember which file or which lines to remove. Can anyone help please. Dave Clucas email:dave@daveclucas.com Website: http://daveclucas.com http://mycaves.org Skype: daveclucas

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FW: 2D output header title when therion can't decide which one to use
by Bruce 14 Feb '10

14 Feb '10

Am working towards answering this question of mine, but not quite there yet. > If there are multiple 'selected' maps and 'source' surveys for a particular projection, then a blank output map 'title' is produced. > Is it possible to do something along the lines of the following pseudo-code? > > code tex-map > If \cavename IS EMPTY OR ZERO LENGTH STRING THEN \cavename={Terikan River Cave} ELSE \cavename = \cavename > endcode I suspect that \cavename is never empty, but rather is set to an empty string by Therion in the above scenario I have got as far as. code tex-map \edef\therioninferedmaptitle{\the\cavename} %save existing calculated cavename to variable \ifx\therioninferedmaptitle\empty %test if therioninferedmaptitle is empty (undefined?) \cavename={Caves of the Flora Area} %if therioninferedmaptitle is empty set a title that describes all the caves selected as a group \else %if it's not empty, do nothing, ie keep the map title value set by therion \fi endcode This works, except that the line \cavename={Caves of the Flora Area} is never run, even when \cavename appears empty. I have tried using \ifx\therioninferedmaptitle\"" as an alternative test to no avail. (All the above run without syntax errors, so I am making some progress at least) What I need is a bit of guidance on the correct test for an empty \cavename Any ideas? Bruce

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FW: Altitude Units
by Bruce 14 Feb '10

14 Feb '10

Dave I think the functionality is that you can input the altitude in any units that you happen to know the altitude in. ie You might have a topo map that tells you the altitude in feet. But the output is always converted to meters, however the text 'm' or 'meters' is never displayed. If you want to add a custom definition you could try Thomas Holders contribution http://therion.speleo.sk/wiki/doku.php?id=metapost near the bottom of the page which guides one through the necessary customization process. Bruce

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Re: [Therion] Altitude Units
by Dave Clucas 14 Feb '10

14 Feb '10

Altitude Units Sorry but I don't understand this answer. My problem is not that I want to change the units that the altitude is displayed in but that I want to display the units as a suffix after the value as in "1562m" or "1562 m". It sounds as though I've misunderstood the meaning of this paragraph in thbook altitude: the value specied is the altitude dierence from the nearest station. If the altitude value is prexed by \fix" (e.g. -value [fix 1300]), this value is used as an absolute altitude. The value can optionally be followed by length units. > Message: 4 > Date: Wed, 10 Feb 2010 20:07:08 +0100 > From: Stacho Mudrak <s.m(a)group-s.sk> > Subject: Re: [Therion] Therion bugs > To: List for Therion users <therion(a)speleo.sk> > Message-ID: > <55e5b7b51002101107u1bacc7fy40ade323f0213a73(a)mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > >> I've had a couple of problems >> 1. I put an altitude point at the entrance to a cave. According to thbook this can be optionally followed by units but no units show on the output pdf. I tried the following options but none of them worked >> -value [fix 1562 meter] >> -value [fix 1562 metre] >> -value [fix 1562 m] > > These units are parsed when file is read. On the output, all altitudes > are converted to meters, regardless of input units. > > Best regards, S. > > > ------------------------------ > > _______________________________________________ > Therion mailing list > Therion(a)speleo.sk > http://mailman.speleo.sk/mailman/listinfo/therion > > > End of Therion Digest, Vol 51, Issue 10 > *************************************** Dave Clucas email:dave@daveclucas.com Website: http://daveclucas.com http://mycaves.org Skype: daveclucas

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