plw3d
( | basex , |
| basey , | |
| height , | |
| xmin , | |
| xmax , | |
| ymin , | |
| ymax , | |
| zmin , | |
| zmax , | |
| alt , | |
az
); |
Sets up a window for a three-dimensional surface plot within the
currently defined two-dimensional window. The enclosing box for the
surface plot defined by
,
xmin
,
xmax
,
ymin
,
ymax
and
zmin
in user-coordinate
space is mapped into a box of world coordinate size
zmax
by
basex
by
basey
so that
height
maps to
xmin
-,
basex/2
maps to
xmax
,
basex/2
maps to
ymin
-,
basey/2
maps to
ymax
,
basey/2
maps to
zmin
0 and
maps to
zmax
. The resulting
world-coordinate box is then viewed by an observer at altitude
height
and azimuth
alt
. This routine must be
called before az
plbox3 or plot3d. For a more complete description
of three-dimensional plotting see the section called “Three Dimensional Surface Plots”.
basex
(PLFLT, input)
The x coordinate size of the world-coordinate box.
basey
(PLFLT, input)
The y coordinate size of the world-coordinate box.
height
(PLFLT, input)
The z coordinate size of the world-coordinate box.
xmin
(PLFLT, input)
The minimum user x coordinate value.
xmax
(PLFLT, input)
The maximum user x coordinate value.
ymin
(PLFLT, input)
The minimum user y coordinate value.
ymax
(PLFLT, input)
The maximum user y coordinate value.
zmin
(PLFLT, input)
The minimum user z coordinate value.
zmax
(PLFLT, input)
The maximum user z coordinate value.
alt
(PLFLT, input)
The viewing altitude in degrees above the XY plane.
az
(PLFLT, input)
The viewing azimuth in degrees. When
, the observer is
looking face onto the ZX plane, and as
az=0
is increased, the
observer moves clockwise around the box when viewed from above
the XY plane.
az
Redacted form: plw3d(basex, basey, height, xmin, xmax, ymin, ymax, zmin, zmax, alt, az)
This function is examples 8,11,18,21.