[Therion] wrong representation in google earth

[Stacho Mudrak]

> The pdf outputs seem to be very tolerant of some forms of careless drawing,
> so a successful pdf output does not mean the drawing is free of errors.

Exactly, pdf interpreters are able to handle paths even outline in/out
is not set properly, but others are not able to do it. Currently there
is no algorithm in therion, that would set this attribute
automatically. So you have to do it manually.

If -outline in/out attributes for paths are set in therion correctly,
it should export them in correct orientation, it does not depend on
direction, in which you draw them.

But you should also take care of wall drawing direction. In the case
that your wall symbol has different left/right side (e.q. wall:sand).
In xtherion the yellow tick should allways point inside the passage.

I hope it is not a huge mess.

Regards, S.