Struct PolyPlainAdaptor 

pub struct PolyPlainAdaptor<'a> { /* private fields */ }

Adaptor that wraps a flat slice of coordinates [x0, y0, x1, y1, ...] as a VertexSource.

Port of C++ agg::poly_plain_adaptor<double>.

Implementations

impl<'a> PolyPlainAdaptor<'a>

pub fn new(data: &'a [f64], closed: bool) -> Self

Create a new adaptor. data must contain pairs of (x, y) coordinates.

Trait Implementations

impl VertexSource for PolyPlainAdaptor<'_>

fn rewind(&mut self, _path_id: u32)

Reset the vertex source to the beginning of the given path. path_id selects which sub-path to iterate (0 for the first/only path).

fn vertex(&mut self, x: &mut f64, y: &mut f64) -> u32

Return the next vertex. Writes coordinates to x and y, returns a path command. Returns PATH_CMD_STOP when iteration is complete.