From: Jerome Ravier (j.ravier_at_free.fr)
Date: Wed Jun 26 2002 - 10:22:53 CEST
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Richard Wrote :
...
How about passage dimensions? Will they be put as a measurement or something
else? I
think it would be good to allow people to measure passage dims with
spherical coordinates
if desired. One of the problems discussed on CaversDigest was taking LRUDs
at a pit or
other very high angle/incline shots. There really is no Left or Right since
the survey
line goes straight down. LRUD could still be used but it would just be
shorthand for 90
deg off the last shot at zero inclination. If the surveyor wanted other
dimensions
recorded (for solid modeling or whatever), they could be added:
azimuth = "135" incline="+45" distance="10.5"
azimuth = "215" incline="-45" distance="40"
It is like having spray shots for passage dimensions. If such information is
associated
with a Shot element, then having the reference point specified would be
necessary as well
(at="").
...
Hello,
First, let me introduced myself. I am a French caver interested by all this
survey, cartography and XML stuff. I read this list since a long time but
didn't had any occasion to contribute until now.
With a few persons last year and before, we started to design an integrated
tool for cave surveying, which would have been able to record at the same
time length, azimut and inclination just by pointing a laser from one
station to the other and pressing a button. I guess that every one of you
has thought about such thing.
Since one year and at least for another one, I am now off in Japan and this
project is in stand by, owing to the fact that we are really working too
much over here (but the beer is good and the Japanese are very friendly !)
and it seems to happen something similar the other guys in France. However,
some work have been done already and I really hope that some day, such kind
of device will be in use (our purpose was to make something affordable and
usable by any caver), even if made by someone else.
At this time, the way to record passage dimension will be exactly the one
describe above by Richard : a spray of shots from each station. This would
really be in favor of Richard's proposal to record passage dimension in
spherical coordinates and to associate them with a station.
Jérôme
**********************************************************
Jérôme RAVIER, PhD
Prof. Enoki's Group,
Department of Chemistry, Tokyo Institute of Technology,
2-12-1, Ookayama, Meguro-ku, Tokyo 152-8551, JAPAN
Phone : +81-3-5734-2610 Fax : +81-3-5734-2242
E-mail: jerome_at_chem.titech.ac.jp
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