I took a look at Bruce's code, in particular Code to redefine area and point water symbols . This looks like something I'd like to use but how and where do I define the colour eg. if known colour_water_bg: thfill Path withcolor colour_water_bg; else: thfill Path withcolor white; fi; On 16 Nov 2012, at 11:00, therion-request@speleo.sk wrote:
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Today's Topics:
1. Metapost modifications (Dave Clucas) 2. Re: Metapost modifications (Footleg) 3. Re: Metapost modifications (Dave Clucas)
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Message: 1 Date: Fri, 16 Nov 2012 09:28:17 +0000 From: Dave Clucas <dave@daveclucas.com> Subject: [Therion] Metapost modifications To: therion@speleo.sk Message-ID: <669F7863-965F-4631-9398-DBDB3CCFB323@daveclucas.com> Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
In Mulu many of the passages are part filled with sandstone pebbles. I'd like to create a user area and a user symbol based on pebbles where the ellipses are filled with a colour (light brown). Can anybody tell me how to modify the standard definition?
Dave Clucas dave@daveclucas.com http://daveclucas.com http://mycaves.org
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Message: 2 Date: Fri, 16 Nov 2012 09:39:17 +0000 From: Footleg <drfootleg@gmail.com> Subject: Re: [Therion] Metapost modifications To: List for Therion users <therion@speleo.sk> Message-ID: <CAJkGg4ny0XGoxkb+5QxjM_N1Q4GjjjhrwwfrohBoxQLhxmmEfQ@mail.gmail.com> Content-Type: text/plain; charset="iso-8859-1"
Take a look at Bruce's customised symbol sets on the wiki. I based mine on those. I have not tried adding a completely new symbol to therion yet, but here is how I override the pebbles area fill with one which looks more like I prefer. Include this layout in your pdf export command to see pebbles rendered with this custom style:
layout CustomisedSymbols code metapost
beginpattern(pattern_pebbles); pickup PenC; path qq; for i=0.0u step 0.6u until 5.1u: for j=0.0u step 0.6u until 5.1u: qq := (superellipse((.05u,0),(0,.05u),(-.05u,0),(0,.-.05u),.75)) randomized (u/45) scaled (uniformdeviate(1.2)+.55) rotated uniformdeviate(360) shifted ((i,j) randomized 0.55u); draw qq; endfor; endfor; patternstep(5.1u,5.1u); endpattern;
def a_pebbles (expr p) = T:=identity; thfill p withpattern pattern_pebbles; enddef;
endcode endlayout CustomisedSymbols
On 16 November 2012 09:28, Dave Clucas <dave@daveclucas.com> wrote:
In Mulu many of the passages are part filled with sandstone pebbles. I'd like to create a user area and a user symbol based on pebbles where the ellipses are filled with a colour (light brown). Can anybody tell me how to modify the standard definition?
Dave Clucas dave@daveclucas.com http://daveclucas.com http://mycaves.org
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