Thank you very much! The extra point then just basicly just indicates "this *known* point is xx meters away from point y"; as is the (implicit) same for the LRUD data. In other words, the LRUD data generates implicitely such points if present. Just to clarify (and for the archive): To correct an arbitary wall between two long survey legs, i would place two extra points at the middle of the leg at the position where i have drawn my wall signature. Then i would enter the "-from" info and the respective -dist to that point. I just tested this and it works like desired, however it involves a little fiddling. Thanks again for clarifying this! Am 2016-11-18 14:13, schrieb Xavier Pennec:
According to the therion book (p. 25), extra points can also be used without LRUD by specifying the distance to either the closest station of a specific station, e.g.: point 0.0 0.0 extra -dist 3 -from 2@mysurvey I have not tried yet, though.
Xavier
Le 18/11/2016 11:52, Benedikt Hallinger a écrit :
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@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.
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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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