5.3. - 3d select 3D mode
changes plotting to 3D mode.
3dThe
3d command switches C-PLOT to 3D mode.
In 3D mode, the axes are drawn and the data is plotted using a 3D
perspective box.
The commands
vi, to set the view point of the 3D box, and
bo, to set the relative lengths of the 3D box, are available in 3D mode.
Both are described below.
The absolute size of the 3D box is the largest that just fits in the 2D window set by the window command,
wi, without distorting
the aspect ratio of the box.
Three arguments are required when position arguments are used with the commands to draw annotation or a key,
pn, zn, pk
or
zk. The units of the position arguments are data units, as in 2D mode,
or box units, as used with the
bo command.
In 3D mode, the
gd 9
command (digitize) and the
gd 4
and
gd 5
commands (break data) are not available.
The other
gd modes and the
sa command work with three columns of data, plus
optional error-bar and pen-control values.
Note, however, that only
z
error bars are available in 3D mode.
In 3D mode, the commands
ra, ro, np, ty and
tx take extra
arguments and/or prompt for extra values associated with the
z
axis.
In its current state, 3D functionality has some limitations. Circle symbols are drawn as flat 2D circles in 3D mode. Axis numbering and annotation are in fixed planes and orientation.