Draws an arc.
graphics-ports
draw-arc port x y width height start-angle sweep-angle &rest args &key filled
port⇩ |
A graphics port. |
x⇩ |
A real number. |
y⇩ |
A real number. |
width⇩ |
A real number. |
height⇩ |
A real number. |
start-angle⇩ |
A real number. |
sweep-angle⇩ |
A real number. |
args⇩ |
graphics-state parameters passed as keyword arguments. |
filled⇩ |
A boolean. |
The function draw-arc
draws an arc contained in the rectangle from (x y) to (x+width y+height) from start-angle to start-angle+sweep-angle. Both angles are specified in radians. Currently, arcs are parts of ellipses whose major and minor axes are parallel to the screen axes. When port's drawing-mode is :quality
the arc is transformed properly, but if drawing-mode is :compatible
and port has rotation in its transform, the enclosing rectangle is modified to be the external enclosing orthogonal rectangle of the rotated rectangle. The start angle is rotated. The transform, foreground, background, operation, pattern, thickness, scale-thickness, mask, shape-mode and compositing-mode from port's graphics-state are all used, unless overridden in args. Additionally on X11/Motif only, stipple is used. When filled is non-nil, a sector is drawn.
CAPI User Guide and Reference Manual (Unix version) - 01 Dec 2021 19:33:02