arc()

arc()#

Draws an arc to the screen.

Examples#

example picture for arc()

def setup():
    py5.arc(50, 55, 50, 50, 0, py5.HALF_PI)
    py5.no_fill()
    py5.arc(50, 55, 60, 60, py5.HALF_PI, py5.PI)
    py5.arc(50, 55, 70, 70, py5.PI, py5.PI+py5.QUARTER_PI)
    py5.arc(50, 55, 80, 80, py5.PI+py5.QUARTER_PI, py5.TWO_PI)

example picture for arc()

def setup():
    py5.arc(50, 50, 80, 80, 0, py5.PI+py5.QUARTER_PI, py5.OPEN)

example picture for arc()

def setup():
    py5.arc(50, 50, 80, 80, 0, py5.PI+py5.QUARTER_PI, py5.CHORD)

example picture for arc()

def setup():
    py5.arc(50, 50, 80, 80, 0, py5.PI+py5.QUARTER_PI, py5.PIE)

Description#

Draws an arc to the screen. Arcs are drawn along the outer edge of an ellipse defined by the a, b, c, and d parameters. The origin of the arc’s ellipse may be changed with the ellipse_mode() function. Use the start and stop parameters to specify the angles (in radians) at which to draw the arc. The start/stop values must be in clockwise order.

There are three ways to draw an arc; the rendering technique used is defined by the optional seventh parameter. The three options, depicted in the examples, are PIE, OPEN, and CHORD. The default mode is the OPEN stroke with a PIE fill.

In some cases, the arc() function isn’t accurate enough for smooth drawing. For example, the shape may jitter on screen when rotating slowly. If you’re having an issue with how arcs are rendered, you’ll need to draw the arc yourself with begin_shape() & end_shape() or a Py5Shape.

Underlying Processing method: arc

Signatures#

arc(
    a: float,  # x-coordinate of the arc's ellipse
    b: float,  # y-coordinate of the arc's ellipse
    c: float,  # width of the arc's ellipse by default
    d: float,  # height of the arc's ellipse by default
    start: float,  # angle to start the arc, specified in radians
    stop: float,  # angle to stop the arc, specified in radians
    /,
) -> None

arc(
    a: float,  # x-coordinate of the arc's ellipse
    b: float,  # y-coordinate of the arc's ellipse
    c: float,  # width of the arc's ellipse by default
    d: float,  # height of the arc's ellipse by default
    start: float,  # angle to start the arc, specified in radians
    stop: float,  # angle to stop the arc, specified in radians
    mode: int,  # arc drawing mode
    /,
) -> None

Updated on March 06, 2023 02:49:26am UTC

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