FIGURE command
Syntax: |
FIGURE ARROW style nheads x1 y1 x2 y2
|
Qualifiers: | \WORLD, \GRAPH, \PERCENT |
Defaults: | \WORLD |
This command is used to draw geometric figures. The figure type is chosen with the keyword
(ARROW
, RECTANGLE
, TRIANGLE
, or ELLIPSE
).
Fillable figures
The figures are fillable, except for style 3 arrows. The
AREAFILLCOLOR
characteristic controls the fill color. Set it before drawing the figure.
Units
The numeric location parameters may be expressed in three types of units, which are chosen by
command qualifier. The default is /WORLD
.
qualifier | |
\WORLD |
centimeters |
\PERCENT |
percentages of the current window, as chosen with the
WINDOW command. |
\GRAPH |
graph units, that is, the units defined by the minimum and maximum
values for the last graph drawn in the active window. If no graph has been drawn yet, the defaults
are -1 ≤ x ≤ 1 and -1 ≤ y ≤ 1 |
For example, if the \PERCENT
qualifier is used, then a location of (50,50)
represents the center of the active window. If the \WORLD
qualifier is used, the
coordinates are in units of the world coordinate system, the plotting units. The default world
coordinate system units are centimeters.
Arrows
Syntax: |
FIGURE ARROW style nheads x1 y1 x2 y2 |
The FIGURE ARROW
command draws an arrow with base at (x1,y1)
and end point
at (x2,y2)
.
There are three styles of arrow:
The parameter nheads
can be either 1
, for single headed arrows, or
2
, for arrows with heads on both ends.
Rectangles
Syntax: |
FIGURE RECTANGLE x1 y1 x2 y2 |
The FIGURE RECTANGLE
command draws a rectangle with one corner at (x1,y1)
and the opposite corner at (x2,y2)
.
Triangles
Syntax: |
FIGURE RECTANGLE x1 y1 x2 y2 x3 y3 |
The FIGURE TRIANGLE
command draws a triangle with corners at (x1,y1)
,
(x2,y2)
, and (x3,y3)
.
Rectangles
Syntax: |
FIGURE ELLIPSE x1 y1 x2 y2 |
The FIGURE ELLIPSE
command draws the ellipse which fits within the rectangle with
one corner at (x1,y1)
and the opposite corner at (x2,y2)
.