Struct TransDoublePath 

pub struct TransDoublePath { /* private fields */ }

Double-path coordinate transformation.

Stores two paths as sequences of vertices with cumulative distances. transform() maps x → distance along path1 (and path2 scaled proportionally), y → linear interpolation between the two paths based on base_height. Used for text-between-two-curves effects.

Implementations

impl TransDoublePath

pub fn new() -> Self

pub fn set_base_length(&mut self, v: f64)

pub fn base_length(&self) -> f64

pub fn set_base_height(&mut self, v: f64)

pub fn base_height(&self) -> f64

pub fn set_preserve_x_scale(&mut self, f: bool)

pub fn preserve_x_scale(&self) -> bool

pub fn reset(&mut self)

pub fn move_to1(&mut self, x: f64, y: f64)

pub fn line_to1(&mut self, x: f64, y: f64)

pub fn move_to2(&mut self, x: f64, y: f64)

pub fn line_to2(&mut self, x: f64, y: f64)

pub fn add_paths<VS1: VertexSource, VS2: VertexSource>( &mut self, vs1: &mut VS1, vs2: &mut VS2, path1_id: u32, path2_id: u32, )

Build both paths from two VertexSources and finalize.

pub fn finalize_paths(&mut self)

Finalize both paths — compute cumulative distances and prepare for transform.

pub fn total_length1(&self) -> f64

Total length of path 1 (or base_length if set).

pub fn total_length2(&self) -> f64

Total length of path 2 (or base_length if set).

Trait Implementations

impl Default for TransDoublePath

fn default() -> Self

Returns the “default value” for a type.

impl Transformer for TransDoublePath

fn transform(&self, x: &mut f64, y: &mut f64)