draw-arc Function

Summary

Draws an arc.

Package

graphics-ports

Signature

draw-arc port x y width height start-angle sweep-angle &rest args &key filled

Arguments

Description

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.

See also

draw-arcs
graphics-state
13 Drawing - Graphics Ports