Help - my cave is inside-out

[Wookey]

+++ Martin Budaj [04-12-26 13:06 +0100]:

>>> > I'm getting the hang of this and have drawn up some cave. It went OK until
>>> > I
>>> > got to a complicated section, with an underlying streamway adn overlying
>>> > passages. The streamway needs to be a separate scrap. But I haven't got
>>> > that
>>> > far. One bit of wall wasn't shown. By adding a map-fg colour I could see
>>> > that therion is very confused about what is the inside and what is the
>>> > outside of the scrap.
>
>>
>> Only minor improvements were required -- mostly to correct line types (the
>> hidden wall was actually a border, the inner pillar should have -outline
>> in option...). All my changes are marked red in the enclosed picture.


Thanx for that, martin - that's great  :-)

I thin we need a better understanding of what makes a 'pillar'. I thought a
pillar was a closed loop within a passage, but that is not a closed loop (a
passage goes off underneath from the gap - see the scan to get the full
idea). So when does therion need to be told that an outline is 'in'?

>> The correct line types make correct scrap joins possible. Simple join s1
>> s2 worked fine with one exception, where the scrap ends are too far. There
>> is perhaps a blunder in your data.


OK. so there is some threshold of closeness that prevents a join happening
automatically (to the right place). I think some form of feedback is needed
that allows me to work out that the join has gone wrong due to excessive
distortion. How did you work out what was wrong?

Also a couple of new points - I added some areas and used 'Insert ID' in the
area control. I assumed this just gave an ID to the area, but now having
added 'bankatjoin' I get the error:
object does not exist -- bankatjoin

I'm a bit confused about this - does this area ID have some special
significance and isn't just any old string I give to the area?

Also what happens if an area crosses a scrap join? Presumably I have to draw
an invisible borderline across the join in order to make a closed area (in
both scraps)? Or is there some special way to indicate that it is one area?



Wookey
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