I want to draw a plot of points in 3-d along with their x,y,z coordinate
axes, as seen from an oblique viewpoint, but with two of the three axes
lined up along the plot page like so:
v
|__________
| |
.|. . . . .|
.|. . . . .|
.|_________|__ u
/ . . . . .
/
/w
using threed routines, if I choose the viewpoint approximately along one
of the axes, say by making the viewpoint array eye = (0,0,1000), I do get
roughly this form:
v
|
|. . . . .
|. . . . .
|. . . . .
|__________ u
(w)
But, if the the viewpoint is off-axis, say (1000,1000,1000), the plot
comes out rotated about the line joining eye and the origin by an amount
I don't know how to control, like
u
/|..
/.|..
/ .|..
/ .|..
/ .|..
| .|..
| .|..
| .|..
| / \
| / \
/ \
v w
The usual threed routines (set3, curve3, perim3, point3) have no further
variables to adjust. Is there a way then to rotae this back, i.e., specify
both of the orientation angles? (A previous suggesttion was to call set3
once for the points with the oblique value for eye, and then for the axis
with the "on-axis" value, but this breaks the connection between the points
and their coordinate values.)
------------------------------------------------------------------------
Joel Koplik
Levich Institute, T-1M phone: (212) 650-8162
City College of New York fax: (212) 650-6835
New York, NY 10031 USA e-mail: koplik AT unknown
------------------------------------------------------------------------
_______________________________________________
ncarg-talk mailing list
ncarg-talk AT unknown
http://mailman.ucar.edu/mailman/listinfo/ncarg-talk
This archive was generated by hypermail 2b29 : Thu Oct 09 2003 - 11:28:18 MDT