[Therion] How to generate a projected elevation along a specificbearing?

[Bruce]

Footleg

May need to include your th and th2 files to be more specific.

 

Couple of likely issues.

1.	Firstly check that the direction of the projection is the direction
in which you are looking.  Ie on the elevation the direction will then be
'into the page'.  If you don't specify a direction then Therion assumes it
is north.  I would guess you have some scraps/maps with differing projection
directions, and so naturally they are different projections.  If you have
for example 3 different projection directions, then therion will make three
elevations (if you ask to export them).  Look in the log file or Xtherion
compiler map structure pane for clues.
2.	Make sure every scrap and map you want to include in this elevation
has the same projection.  Many versions ago I found that Therion assumes 0
is not the same as 000 and 20 is not the same as 020.  So I always use 3
digit integers these days.
3.	Differing coordinate systems.  If you for example use a different
thconfig for the main map production and test plots of parts of the cave you
might be using different coordinate systems or declinations each time.  This
will really screw up the elevations where passage is almost in the same
direction as the projection, because Therion will morph as much as required.
In this situation it often turns into a real mess.

 

Bruce

 

  _____  

From: therion-bounces at speleo.sk [mailto:therion-bounces at speleo.sk] On Behalf
Of Footleg
Sent: Tuesday, 22 March 2011 2:59 a.m.
To: List for Therion users
Subject: [Therion] How to generate a projected elevation along a
specificbearing?

 

I've tried searching the wiki and Therion book to find an answer to this,
but it does not seem to feature anywhere. Not even in any examples I can
find. I am trying to draw a simple cave with a 20m vertical entrance shaft,
and a couple of chambers down a slope at the bottom. I've drawn an elevation
scrap for one of these chambers and the shaft. But when I generate an
elevation map using this scrap the shaft looks fine, but the chamber wall is
a mess. So I concluded it is not projecting the elevation along the bearing
I would like. The Therion book showed me I can put a bearing on the scrap
type. So I tried elevation 90. Now my shaft is no longer appearing anywhere
near vertical in the elevation PDF and the chamber. Can anyone help me
please?

Screenshot of scrap, and pdfs with default elevation map and elevation 90
settings attached.

Footleg

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