[Therion] Therion Digest, Vol 37, Issue 15
Dave Clucas
dave at daveclucas.com
Wed Dec 31 15:06:13 CET 2008
I'm afraid that's what I thought. We have the situation here in Mulu
where the main passages are 50m wide with house sized boulders with
side passages a mere 5m wide and small car size boulders so ideally we
need a mixture of block sizes to play with. And of course chambers the
size of football fields.
On 31 Dec 2008, at 19:00, therion-request at speleo.sk wrote:
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> Today's Topics:
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> 1. Re: Using metapost code examples (Stefan Oswald)
> 2. Re: Using metapost code examples (Martin Budaj)
> 3. Re: Using metapost code examples (Wookey)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 30 Dec 2008 13:01:17 +0100
> From: "Stefan Oswald" <stefan_oswald at gmx.at>
> Subject: Re: [Therion] Using metapost code examples
> To: therion at speleo.sk
> Message-ID: <20081230120117.233970 at gmx.net>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hi,
>
> The size is controlled by the factor before the u.
> (symbolsize:=1.0u; %Factor*u; Factor=size of the blocks change 1.0
> as you want)
>> Does this apply to each instance of a block or is it a
>> global definition.
> This overrules the point_block sizes in the whole plan compiled.
> Size canging/definition of a single block is, as far as i know, not
> possible and not projected?
>
> The problem was (with other symbols it is still the case, a solution
> could be, for example an layout command for small symbols) that with
> small caves in small scales the normative symbol size is too large,
> so it might happen that you only see a small part of the symbol in a
> narrow passage on small scale.
> You can handle this problem with block_points and block_area in UIS
> as in described in wiki by changing the factor before the "u".
>
> Gl?ck Tief, Stefan
>
> -------- Original-Nachricht --------
>> Datum: Tue, 30 Dec 2008 12:00:01 +0100
>> Von: therion-request at speleo.sk
>> An: therion at speleo.sk
>> Betreff: Therion Digest, Vol 37, Issue 14
>
>> Send Therion mailing list submissions to
>> therion at speleo.sk
>>
>> To subscribe or unsubscribe via the World Wide Web, visit
>> http://mailman.speleo.sk/mailman/listinfo/therion
>> or, via email, send a message with subject or body 'help' to
>> therion-request at speleo.sk
>>
>> You can reach the person managing the list at
>> therion-owner at speleo.sk
>>
>> When replying, please edit your Subject line so it is more specific
>> than "Re: Contents of Therion digest..."
>>
>>
>> Today's Topics:
>>
>> 1. Using metapost code examples (Dave Clucas)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Tue, 30 Dec 2008 19:00:56 +0800
>> From: Dave Clucas <dave at daveclucas.com>
>> Subject: [Therion] Using metapost code examples
>> To: therion at speleo.sk
>> Message-ID: <2CDC217E-E91E-4780-A35C-F6B719CC9D32 at daveclucas.com>
>> Content-Type: text/plain; charset="us-ascii"; Format="flowed";
>> DelSp="yes"
>>
>> Looking at the metapost examples in the Wiki it appears that a block
>> symbol can be defined or redefined which allows the size of the block
>> to be changed. Does this apply to each instance of a block or is it a
>> global definition. How do you specify the size of the block when you
>> place it in the drawing?
>>
>> code metapost
>> def p_blocks_UIS (expr pos,theta,sc,al)=
>> symbolsize:=1.0u; %Factor*u; Factor=size of the blocks
>> U:=(.5u,.5u);
>> T:=identity aligned al rotated theta scaled sc shifted pos;
>> pickup PenC;
>> thdraw (.0symbolsize,.0symbolsize)--(1.0symbolsize,-.
>> 5symbolsize)--(0.0symbolsize,-1.5symbolsize)--
>> (-1.0symbolsize,-1.0symbolsize)--cycle;
>> thdraw (.5symbolsize,-.25symbolsize)--(1.0symbolsize,.
>> 5symbolsize)--(0.0symbolsize,1.5symbolsize)--(-0.5symbolsize,.
>> 5symbolsize);
>> thdraw (.0symbolsize,.0symbolsize)--(.0symbolsize,.5symbolsize)--
>> (-1.5symbolsize,.5symbolsize)--(-1.5symbolsize,-0.5symbolsize)--
>> (-0.5symbolsize,-0.5symbolsize);
>> enddef;
>> endcode
>>
>>
>>
>> Dave Clucas
>> email:dave at daveclucas.com
>> Website: http://daveclucas.com
>> http://mycaves.org
>> Skype: daveclucas
>>
>>
>>
>>
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>> End of Therion Digest, Vol 37, Issue 14
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>
>
> ------------------------------
>
> Message: 2
> Date: Tue, 30 Dec 2008 13:19:32 +0100
> From: "Martin Budaj" <m.budaj at gmail.com>
> Subject: Re: [Therion] Using metapost code examples
> To: "List for Therion users" <therion at speleo.sk>
> Message-ID:
> <f64c1c4a0812300419x6a3e3d7ek1c2e3411c44a37d9 at mail.gmail.com>
> Content-Type: text/plain; charset=UTF-8
>
>> Size canging/definition of a single block is, as far as i know, not
>> possible and not projected?
>
> You can do it simply by using -scale xl option (or -scale s etc.) for
> (almost) any point symbol.
>
>> The problem was (with other symbols it is still the case, a
>> solution could be, for example an layout command for small symbols)
>> that with small caves in small scales the normative symbol size is
>> too large, so it might happen that you only see a small part of the
>> symbol in a narrow passage on small scale.
>
> Try playing with base-scale layout option. It should address exactly
> this issue.
>
> martin
>
>
> ------------------------------
>
> Message: 3
> Date: Tue, 30 Dec 2008 22:57:46 +0000
> From: Wookey <wookey at wookware.org>
> Subject: Re: [Therion] Using metapost code examples
> To: therion at speleo.sk
> Message-ID: <20081230225746.GO8858 at knossos.aleph1.co.uk>
> Content-Type: text/plain; charset=us-ascii
>
> On 2008-12-30 13:19 +0100, Martin Budaj wrote:
>>> The problem was (with other symbols it is still the case, a
>>> solution could be, for example an layout command for small
>>> symbols) that with small caves in small scales the normative
>>> symbol size is too large, so it might happen that you only see a
>>> small part of the symbol in a narrow passage on small scale.
>>
>> Try playing with base-scale layout option. It should address
>> exactly this issue.
>
> Ah yes. I had this problem Dave. The Therion defaults are/were for
> relatively small caves at 1:200 so our huge ones at 1:3000 need some
> -base-scale and -scale options to be right.
>
> I'll get you my files so you can see the numbers I used.
>
> Wookey
> --
> Principal hats: Balloonz - Toby Churchill - Aleph One - Debian
> http://wookware.org/
>
>
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> End of Therion Digest, Vol 37, Issue 15
> ***************************************
Dave Clucas
email:dave at daveclucas.com
Website: http://daveclucas.com
http://mycaves.org
Skype: daveclucas
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