Chapter 14. The Canvas Arc Item

Table of Contents
Methods
Options

An arc item is a section of oval, delimited by two angles (start and extent). An arc item can be drawn in one of three ways:

pieslice (lines are drawn from the perimeter to the oval's center)
chord (the ends are connected with a straight line)
arc (only the perimeter section is drawn)

    xy = 20, 20, 300, 180
    canvas.create_arc(xy, start=0, extent=270, fill="red")
    canvas.create_arc(xy, start=270, extent=60, fill="blue")
    canvas.create_arc(xy, start=330, extent=30, fill="green")

Pieslices and chords can be filled.

Figure 14-1. Pieslice Example

Methods

The following methods are used to create and configure arc items:

create_arc(x0, y0, x1, y1, options...) => id, create_arc(box, options...) => id: Create a arc item enclosed by the given rectangle. The start and extent options control which section to draw. If they are set to 0.0 and 360.0, a full oval is drawn which touches the rectangle's four edges.
delete(item): Delete an arc item.
coords(item, x0, y0, x1, y1): Change the enclosing rectangle for one or more arc items.
itemconfigure(item, options...): Change the options for one or more arc items.

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