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Vertical profiles
| Vertical profiles [message #1832] |
Fri, 04 March 1994 10:04 |
sgsmatpa
Messages: 1
Registered: March 1994
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Junior Member |
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Hello!
Another plea for help here.
I have some oceangraphic data that I would like to display
using Pvwave but I'm not having much success. The data basically
consists of a series of almost parallel, vertical slices
through the ocean :-
____ ____ ___ y (long)
/| /| /| /| /| | /
/ | / | / | / | / | | /
/ |/ |/ |/ |/ | | /
/ /___/ /___/ | | --------------> x(lat)
| | | | | | | |
| | | | | | | |
| | | | | |__| |
| | | | | / |
| /| | /| | / |
| / | | / | | / z(depth)
|/ |___|/ |___|/
Data is in the form of x, y, z, temperature. I want to be able to display
the 3D data and roatate it around the z axis to look from different angles
and to contour or shade the surface with the temperature values. Later
on I want to interpolate the data to give a full 3D volume but thats a
different problem!
SHADE_SURF doesnt seem to be able to cope with this kind of 'vertical'
surface. I can cheat and map longditude to z and depth to y but this
means I can't rotate the data around the depth axis.
Any suggestions as to alternative ways of displaying it? Can I convert it
to a volume and make most of the volume transparent except where I have
data points? And if I do that can I still display axis etc?
Also is there a 'null' value for data points (e.g. -9999.000) ?
Help! All advice very welcome.
thanks
Tricia Matthews
University of Reading
England
sgsmatpa@uk.ac.reading
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