[Therion] Additional morphing points (type "extra") explained

[Martin Sluka]

page 35:

• dist <distance> ◃ valid for extra points, specifies the distance to the nearest station
(or station specified using -from option. If not specified, appropriate value from LRUD
data is used.
• from <station> ◃ valid for extra points, specifies reference station.

It means you may specify it "everywhere", not only on walls

point extra -dist 12 m -from A1234

m.

On Nov 18, 2016, at 12:05 PM, Benedikt Hallinger <beni at hallinger.org> wrote:

Thank you for the fadt reply.
If i understand and interpret correctly, the behavior unfolds in the 
following way:
- when i detect inproper morphing of walls compared to lrud data
- i place "extra" points on my traced wall signature.
- the extra point position is approximately where the lrud point is assumed 
to be on the wall.
- when rendering, therion morphes the wall to match the extra point position 
to the corresponding lrud position for that point (which is the nearest 
station).

That would imply:
a) there is no use for extra points without lrud data.
b) extra points reference l+r positions of lrud data of the nearest station, 
therefore it is not possible to set more than two extra points per station.

Is the above true?



Am 2016-11-18 11:20, schrieb Martin Sluka:
18. 11. 2016 v 8:07, Benedikt Hallinger <beni at hallinger.org>:

Hello,
i struggle to understand how the extra morphing points are meant to be
used.

How do they work technically? How do i correctly set them?
Are they linked to the nearest station and could i use more than two
extra points?
Are they linked to LRUD data?

I already investigated the "morohing" example from the documentation
(both in code and in thbook), so i think it would be good to stick to this
example.

Thank you very much!
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Hi Benedikt,

the purpose of these extra points is to correct differences between LRUD
data (if available) and distances to walls in sketches.

Check page 89 of TherionBook.

m.

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