Struct ConvTransform 

pub struct ConvTransform<VS: VertexSource, T: Transformer = TransAffine> { /* private fields */ }

Applies a coordinate transform to each vertex from a source.

Port of C++ conv_transform<VertexSource, Transformer>. Generic over any Transformer implementation (defaults to TransAffine). Owns the source; use ConvTransform<&mut PathStorage> to borrow.

Implementations

impl<VS: VertexSource, T: Transformer> ConvTransform<VS, T>

pub fn new(source: VS, trans: T) -> Self

pub fn set_transform(&mut self, trans: T)

pub fn transform(&self) -> &T

pub fn source(&self) -> &VS

pub fn source_mut(&mut self) -> &mut VS

Trait Implementations

impl<VS: VertexSource, T: Transformer> VertexSource for ConvTransform<VS, T>

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.