- Therion - speleo.sk

***UNCHECKED*** scaling line ornamentation - metapost
by Bruce Mutton 02 Apr '18

02 Apr '18

Thanks Dave I was not clear enough, -Head can have values; both, all, begin, end, whereas Q can be 0, 1, 2, 3, so some go-between is required. I finally looked and found part of it in source file thline.h // tags pre arrow TT_LINE_TAG_HEAD_BEGIN = 1, TT_LINE_TAG_HEAD_END = 2, Presumably somewhere else NONE is set to or implied as zero and BOTH is set to BEGIN + END. That would complete the mapping from the data type that -Head takes as input in a th2 file, to the 0, 1, 2 or 3 that ‘line arrow’ requires for variable Q. I rather suspect I don’t have the requisite knowledge for this, but sometimes I feel the need to push the boundaries anyway! :) Bruce From: Therion <therion-bounces(a)speleo.sk> On Behalf Of Dave Clucas via Therion Sent: Saturday, 31 March 2018 2:28 PM To: therion(a)speleo.sk Cc: Dave Clucas <dave.clucas(a)icloud.com> Subject: Re: [Therion] scaling line ornamentation - metapost (Bruce Mutton) I’m not sure about this but I suspect that it doesn’t involve parsing. It’s likely that the metapost expects a parameter or parameters to be passed to it which it then assigns to the variable Q in its own procedure. It won’t care what the calling program calls it. I think the arrowhead is probably defined within an arrow class (arrow.h perhaps). On 30 Mar 2018, at 18:00, therion-request(a)speleo.sk <mailto:therion-request@speleo.sk> wrote: I notice line arrow takes the special argument -head [both | none | begin]. Somewhere between the th2 file and the metapost arrow definition, the argument -head gets changed to the variable Q that is parsed to the metapost code, that controls which ends of the arrow line get arrow heads. I have copied the code below. Whereabouts is the code that tells Therion that -head is parsed to the metapost definition as Q? Dave Clucas <mailto:daveclucas@icloud.com> dave.clucas(a)icloud.com Exploring the World - One cave at a time

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Re: [Therion] scaling line ornamentation - metapost (Bruce Mutton)
by Dave Clucas 01 Apr '18

01 Apr '18

I don’t know what happened to my last reply but it should have been this. I’m not sure about this but I suspect that it doesn’t involve parsing. It’s likely that the metapost expects a parameter or parameters to be passed to it which it then assigns to the variable Q in its own procedure. It won’t care what the calling program calls it. I think the arrowhead is probably defined within an arrow class (arrow.h perhaps). Dave Clucas dave.clucas(a)icloud.com Exploring the World - One cave at a time > On 31 Mar 2018, at 18:00, therion-request(a)speleo.sk wrote: > > Send Therion mailing list submissions to > therion(a)speleo.sk > > To subscribe or unsubscribe via the World Wide Web, visit > https://mailman.speleo.sk/listinfo/therion > or, via email, send a message with subject or body 'help' to > therion-request(a)speleo.sk > > You can reach the person managing the list at > therion-owner(a)speleo.sk > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Therion digest..." > > > Today's Topics: > > 1. Re: scaling line ornamentation - metapost (Bruce Mutton) > (Dave Clucas) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sat, 31 Mar 2018 09:27:56 +0800 > From: Dave Clucas <dave.clucas(a)icloud.com> > To: therion(a)speleo.sk > Subject: Re: [Therion] scaling line ornamentation - metapost (Bruce > Mutton) > Message-ID: <AE9F115A-8402-4B59-8801-DEBD248FCAEB(a)icloud.com> > Content-Type: text/plain; charset="utf-8" > > An HTML attachment was scrubbed... > URL: <http://mailman.speleo.sk/pipermail/therion/attachments/20180331/e73a8e70/at…> > > ------------------------------ > > Subject: Digest Footer > > _______________________________________________ > Therion mailing list > Therion(a)speleo.sk > https://mailman.speleo.sk/listinfo/therion > > > ------------------------------ > > End of Therion Digest, Vol 147, Issue 32 > ****************************************

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Re: [Therion] scaling line ornamentation - metapost (Bruce Mutton)
by Dave Clucas 31 Mar '18

31 Mar '18

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scaling line ornamentation - metapost
by Bruce Mutton 30 Mar '18

30 Mar '18

Hi I'm wondering if there is a way to scale the size of line ornamentation with the -scale option? I am thinking about arrows (and map-connections) as in a previous post. I notice that I can apply -scale to a line wall Eg line wall -scale xs subtype debris <list of coordinates> endline and the line will plot, but at always at normal scale. I can see why that might be, as there seems to be no way to pass the scale value into the metapost definition of the wall (or arrow) line object. However if I put in a layout. min-symbol-scale m then the wall (or arrow) that has a scale of s or xs will not plot (as I think is expected). So there is some crude on/off control, but I have not found where it is done. So I am wondering, is there some way that we can have more refined control of the scale of line ornamentation (wall debris, blocks, arrow heads)? I notice line arrow takes the special argument -head [both | none | begin]. Somewhere between the th2 file and the metapost arrow definition, the argument -head gets changed to the variable Q that is parsed to the metapost code, that controls which ends of the arrow line get arrow heads. I have copied the code below. Whereabouts is the code that tells Therion that -head is parsed to the metapost definition as Q? Bruce In th2 file. line arrow -head both <coordinates> endline In thline.mp or in a layout file. code metapost % Q = 0 -- no arrows % 1 -- end % 2 -- begin % 3 -- both def l_arrow (expr P, Q) = T:=identity; pickup PenB; thdraw P; p := (-.1u,-.5u)--(0,0)--(.1u,-.5u)--cycle; % 0.25 changed to .5 and close end to get nicer arrowhead if odd Q: thfilldraw p rotated (angle(thdir(P,0))+90) shifted (point 0 of P); fi; if Q>1: thfilldraw p rotated (angle(thdir(P,length P))-90) shifted (point infinity of P); fi; enddef;

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Syntax highlighting for therion files (.th, .th2 and .thconfig)
by Xavier Robert 29 Mar '18

29 Mar '18

Dear all, I am not sure to have post this info for those who are interested in it. I often edit my therion file inside an external editor as Textwrangler or Brackets. I wrote some configuration files for both softwares to color the Therion’s syntax. That is not complete, they may be still errors, but you can find them here : For Texwrangler : https://github.com/robertxa/Therion-TextWrangler For Brackets : https://github.com/robertxa/Therion-Brackets Have a good weekend, Xavier

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Survey and drawing date
by Roger Schuster 28 Mar '18

28 Mar '18

Hello cavers, if I put date 2017.08.27 in the centerline block and -author 2018.03.28 "Drawing Guy" in the scrap element then both dates will be displayed on the final map with year only. Is it possible to get the complete date and even better in German locale (dd.MM.yyyy)? Thank you, Roger

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Redefining map-connection
by Bruce Mutton 28 Mar '18

28 Mar '18

Hi, I'm looking for a little metapost guidance. I want to redefine the map-connection line, making the line thicker, dashed, with a dot at the start and larger arrowhead at the end. Also a nicer generic arrowhead shape. As the default Therion metapost uses a standard arrow definition for 'line arrow' and for 'line map-connection' I would like to maintain that efficiency, except I would like the map-connection arrows heads to be two or three times larger than the standard arrow head. So far, with the slightly modified standard Therion code below, I have achieved all of that except for the difference in arrowhead sizes. Compare this with the original I expect I could do it by duplicating the l_arrow definition (and call it l_arrowbig for example) , but this seems inefficient. Could I modify the size of the arrowhead with the statement that calls l_arrow(P,1); ? Although I'm thinking possibly that is not the best idea, as scaling l_arrow will affect the whole line as well as the arrowhead I expect. Comments? Bruce #ARROW and MAP-CONNECTION REDEFINITIONS #-------------------------- code metapost % Q = 0 -- no arrows % 1 -- end % 2 -- begin % 3 -- both def l_arrow (expr P, Q) = T:=identity; pickup PenB; thdraw P; p := (-.1u,-.5u)--(0,0)--(.1u,-.5u)--cycle; % 0.25 changed to .5 and close end to get nicer arrowhead if odd Q: thfilldraw p rotated (angle(thdir(P,0))+90) shifted (point 0 of P); fi; if Q>1: thfilldraw p rotated (angle(thdir(P,length P))-90) shifted (point infinity of P); fi; enddef; def l_mapconnection (expr P) = thdrawoptions(dashed dashpattern(on 1bp off 2bp on 1bp off 2bp) scaled (2 * optical_zoom) withpen PenB); %draw map-connection line with arrowhead at end l_arrow(P,1); %How to double or triple arrowhead size with this call? %draw dot at start of map-connection line thdraw point infinity of P withpen pencircle scaled 0.3u; %Why infinity and not 0 for start?? %If point before arrow head, then point does not render in legend but does on map?? thdrawoptions(); enddef; endcode

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Re: [Therion] Syntax highlighting for therion files (.th, .th2 and .thconfig)
by Bruce Mutton 26 Mar '18

26 Mar '18

Thanks Xavier. FYI I have added a rudimentary entry to https://therion.speleo.sk/wiki/contrib:externaleditors#for_input_files If you would like me to add to or reword the entry I can. Or you could contact wikiadmin[at]speleo.sk for a username and password, if you’d rather do it yourself. :) Bruce From: Therion <therion-bounces(a)speleo.sk> On Behalf Of Xavier Robert via Therion Sent: Sunday, 25 March 2018 6:40 AM To: Therion <therion(a)speleo.sk> Cc: Xavier Robert <xavier.robert(a)univ-grenoble-alpes.fr> Subject: [Therion] Syntax highlighting for therion files (.th, .th2 and .thconfig) Dear all, I am not sure to have post this info for those who are interested in it. I often edit my therion file inside an external editor as Textwrangler or Brackets. I wrote some configuration files for both softwares to color the Therion’s syntax. That is not complete, they may be still errors, but you can find them here : * For Texwrangler : https://github.com/robertxa/Therion-TextWrangler * For Brackets : https://github.com/robertxa/Therion-Brackets Have a good weekend, Xavier

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macOS installation
by ladislav＠lblazek.cz 24 Mar '18

24 Mar '18

Hi, I made new homebrew formulae for macOS users + wrote short howto - see: https://github.com/ladislavb/homebrew-therion It is using GitDownloadStrategy = downloading specific revision or HEAD directly from GitHub. Tested on 10.13 High Sierra. Hope it will help someone. L.

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Macos 10.11 (El Capitan) install
by Xavier Robert 22 Mar '18

22 Mar '18

Hi all, I just downloaded the last development version (5.4.1+?) and tried to install it on my mac (El Capitan). make configure-macosx and make went well, (I did not changed anything in the source files, that is great): At that stage, I could launch Therion or Xtherion locally, they work well. However, I faced some problems with sudo make install: I had an error because of writing permissions in usr/bin/. I am not a Macos guru, but if I good understood, from El Capitan, we do not have access to usr/bin/ even with a root login. I thus changed the makeinstall.tcl to copy the exec files to /usr/local/bin (Homebrew folder) for the macosx version (L30 to L33). I made some basics tests, and it seems working well. I opened a pull request for that in case it is relevant for all mac users. For the loch install, I had the same problem, even with a « sudo make install » I have permissions errors to write in the folder /Applications/. I needed to 1) I need to edit the loch.app/Contents/ by creating a new MacOs Folder 2) copy the loch file to loch.app/Contents/MacOs/ and to copy manually the loch.app to /Applications/. I do not know if there is a way to automate that. I have not changed anything in the makeinstall.tcl for that. Cheers, Xavier

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