Omron NT31C Reference Manual page 93

Fixed Displays
Common Attributes
Display Functions
82
• One polyline can comprise up to 256 linked points including the start and end
points.
• One polygon can be given up to 255 vertices.
• Elements that project out of the screen area cannot be specified (except for
those parts of elements which are not actually drawn, such as the center point
of an arc).
The common attributes are described separately for each element.
Arcs
The relationship between the properties of an arc and the displayed graphic are
indicated below.
Properties
General
Position
Center point Coordinates of the center of the circle that includes the arc
Start point Coordinates of the start point of an arc
End point Coordinates of the end point of an arc
Size
Radius Radius of the circle that includes the arc (dot units)
Attribute Display mode for the arc (Display attribute and drawing
result, page 82).
Color
Foreground Display color of the arc (Colors other than black and white
are available with the NT31C and NT631C only.)
The line style is fixed as solid line and thickness is fixed as one dot.
At the Support Tool, the center point, start point and end point are specified,
as shown in the figure below. When the start point is set, the radius is auto-
matically set accordingly.
Display Attribute and Drawing Result
Attribute
Standard
Inverse
Standard/Inverse/Flash/Inverse Flash
Black/Blue/Red/Magenta/Green/Cyan/Yellow/White
Center point
End point
Radius
Start point
Drawing Result
Only the line of the arc is drawn in the foreground color.
The area enclosed by the arc and a straight line drawn
between its start and end points is displayed in the
foreground color.
Section 2-4