Re: [Therion] Hatching profiles and extended elevations

2020-04-19 Thread Roger Schuster

Hi all,

thank you for your answer. The problem with the direction arrow at 
section lines is solved. I had missed the explanation in the Therion 
book because I always just checked the documentation in foot note 27.


Last night I had the idea to solve the problem with hatching using an 
area. If I draw one invisible border (with -clip off) around the profile 
and use this as area (type water for example, with -clip off) the 
pattern also fills the inner part of the profile which I don't like to 
have. Next I tried to draw a second invisible border just outside of the 
profile and applied the area to the "gap" between the inner and outer 
border but this results in really weird patterns. I guess it's because 
the inner border behaves like a pillar. Of course I played around with 
different orientations of the borders. It never works as expected.


Best regards,

Roger

Am 19.04.2020 um 00:38 schrieb Benedikt Hallinger:

Hello,
for the hatches:
maybe you could do a custom area symbol and use it with "clip off" 
option. I don't know if this is supported, but it might work. You 
could try it with some other area first...


And the section arrows are easy by a line option (see thbook p. 29):
"direction  ▷ can be used only with the 
section type.
It indicates where to put a direction arrow on the section line. None 
is default."



Am 2020-04-18 22:06, schrieb Roger Schuster:

Hello cavers,

at least in Germany it is/was usual to add hatching to extended
elevations and profiles (cross sections) like in the following
example:

I guess it will be difficult to do this in Therion because the
hatching is outside of the passage and will be clipped but anyway: Is
there a way to achieve this?

Is it possible to add an arrow to lines of type section indicating the
viewing direction like in this example:

Thank you!

Best regards,

Roger
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Re: [Therion] Sketches on doesn't work / legacy survey

2020-04-19 Thread Martin Sluka via Therion

> 18. 4. 2020 v 22:25, Bruce Mutton :
> 
> I think it is a bug.  If the user hides all of the centreline objects, and 
> also hides all scrap objects (or something like that), then Therion should 
> trap the error and exit in a controlled manner, rather than letting metapost 
> get in a tangle and produce a mess of messages until it finally crashes.

Yes, it looks as it is bug. Because there are objects in that scrap - three 
stations from which Therion may „georeference“ sketch which is a part of the 
scrap too. Hide representation of objects means only to not include them in the 
final drawing. 

Martin


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Re: [Therion] Hatching profiles and extended elevations

2020-04-19 Thread Martin Sluka via Therion

> 18. 4. 2020 v 22:06, Roger Schuster :
> 
> I guess it will be difficult to do this in Therion because the hatching is 
> outside of the passage and will be clipped but anyway: Is there a way to 
> achieve this? 

Simply add (custom) area like default water under your drawing (bottom of stack 
of commands in a particular scrap) with border invisible and "-clip off“ 
parameter. You may add any kind of area in such way (colorized, …)

Martin

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