Re: [Therion] Help with a flowstone symbol for ASF.

[Michael Lake]

Stacho Mudrak wrote:
>>The above are compiled into the therion executable in some way so that
>>therion knows about those area symbols. If I want to override one of the
>>above area symbols with my own metapost code I can do that by including
>>the metapost code in thconfig.
> 
> Yes, you can override only existing symbols.
> 
>>But if the area symbol is not in the list above I can't just create
>>metapost code for say "a_something_ASF" as therion will not know about
>>it even if it's in thconfig.
>>
>>Is that right?
> 
> Well, symbol types/subtypes are in fact defined in 
> thpoint/thline/tharea.h/.cxx files. In metapost files, there is only 
> their visualization defined, therefore it does not help to define only 
> new metapost symbols.

Now I understand. Thank you.

> Soon we would like to add some generic point/line/area symbols, that 
> could be used in cases, when desired symbol does not exists in therion.

I'm learning about metapost and how to pull in survex data via a 3d file and my 
wife 
is drawing up the cave we are surveying with the xtherion map editor. There are 
quite 
a few ASF symbols that she needs.

Mike
-- 
Michael Lake
Computational Research Support Unit
Science Faculty, UTS
Ph: 9514 2238



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