> For the complete documentation index, see [llms.txt](https://docs.flatredball.com/gum/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.flatredball.com/gum/gum-tool/gum-elements/skia-standard-elements/arc/sweep-angle.md).
# Sweep Angle
### Introduction
Sweep Angle defines the angle that the arc covers. This is a signed value, with positive values going counterclockwise.
The following shows an arc with a positive Sweep Angle of 135 degrees.
An arc with a Sweep Angle of 135
Changing the Sweep Angle changes the length of the arc. If the value is negative, then the Sweep Angle increases the size clockwise.
Sweep Angle can be positive or negative
A sweep angle of 360 creates an arc that extends to a full circle. Values greater than 360 appear the same as if Sweep Angle is set to 360.
Sweep Angle of 360
---
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