@spec center(t()) :: Vivid.Point.t()

Returns the center point of an arc.

Example

iex> Vivid.Arc.init(Vivid.Point.init(10,10), 5, 0, 90, 12)
...> |> Vivid.Arc.center
Vivid.Point.init(10, 10)

@spec center(t(), Vivid.Point.t()) :: t()

Changes the center point of arc.

Example

iex> Vivid.Arc.init(Vivid.Point.init(10,10), 5, 0, 90, 12)
...> |> Vivid.Arc.center(Vivid.Point.init(15,15))
...> |> Vivid.Arc.center
Vivid.Point.init(15, 15)

@spec init(Vivid.Point.t(), number(), number(), number(), integer()) :: t()

Creates an Arc.

• center is a Point definining the center point of the arc's parent circle.
• radius is the radius of the parent circle.
• start_angle is the angle at which to start drawing the arc, 0 is the parallel to the X axis, to the left.
• range is the number of degrees to draw the arc.
• steps the arc is drawn by dividing it into a number of lines. Defaults to 12.

Examples

iex> Vivid.Arc.init(Vivid.Point.init(5,5), 4, 45, 15)
%Vivid.Arc{
  center:      %Vivid.Point{x: 5, y: 5},
  radius:      4,
  start_angle: 45,
  range:       15,
  steps:       12
}

@spec radius(t()) :: number()

Returns the radius of an arc.

Example

iex> Vivid.Arc.init(Vivid.Point.init(10,10), 5, 0, 90, 12)
...> |> Vivid.Arc.radius
5

@spec radius(t(), number()) :: t()

Change the radius of arc.

Example

iex> Vivid.Arc.init(Vivid.Point.init(10,10), 5, 0, 90, 12)
...> |> Vivid.Arc.radius(10)
...> |> Vivid.Arc.radius
10

@spec range(t()) :: number()

Returns the range of the arc.

Example

iex> Vivid.Arc.init(Vivid.Point.init(10,10), 5, 0, 90, 12)
...> |> Vivid.Arc.range
90

@spec range(t(), number()) :: t()

Change the range of an arc.

Example

iex> Vivid.Arc.init(Vivid.Point.init(10,10), 5, 0, 90, 12)
...> |> Vivid.Arc.range(270)
...> |> Vivid.Arc.range
270

@spec start_angle(t()) :: number()

Returns the start angle of an arc.

Example

iex> Vivid.Arc.init(Vivid.Point.init(10,10), 5, 0, 90, 12)
...> |> Vivid.Arc.start_angle
0

@spec start_angle(t(), number()) :: t()

Change the start angle of an arc.

Example

iex> Vivid.Arc.init(Vivid.Point.init(10,10), 5, 0, 90, 12)
...> |> Vivid.Arc.start_angle(45)
...> |> Vivid.Arc.start_angle
45

@spec steps(t()) :: integer()

Returns the number of steps in the arc.

Example

iex> Vivid.Arc.init(Vivid.Point.init(10,10), 5, 0, 90, 12)
...> |> Vivid.Arc.steps
12

@spec steps(t(), integer()) :: t()

Changes the number of steps in arc.

Example

iex> Vivid.Arc.init(Vivid.Point.init(10,10), 5, 0, 90, 12)
...> |> Vivid.Arc.steps(19)
...> |> Vivid.Arc.steps
19

@spec to_path(t()) :: Vivid.Path.t()

Converts the arc into a Path, which is used for a bunch of things like Transforms, Bounds calculation, Rasterization, etc.

Example

iex> Vivid.Arc.init(Vivid.Point.init(10,10), 5, 0, 90, 3)
...> |> Vivid.Arc.to_path
Vivid.Path.init([Vivid.Point.init(5, 10), Vivid.Point.init(6, 13), Vivid.Point.init(8, 14), Vivid.Point.init(10, 15)])