Struct read_fonts::tables::variations::TupleVariation

pub struct TupleVariation<'a, T> { /* private fields */ }

A single set of tuple variation data

Implementations

impl<'a, T> TupleVariation<'a, T>

where T: TupleDelta,

pub fn has_deltas_for_all_points(&self) -> bool

Returns true if this tuple provides deltas for all points in a glyph.

pub fn point_numbers(&'a self) -> PackedPointNumbersIter<'a>

pub fn peak(&self) -> Tuple<'a>

Returns the ‘peak’ tuple for this variation

pub fn compute_scalar(&self, coords: &[F2Dot14]) -> Option<Fixed>

Compute the fixed point scalar for this tuple at the given location in variation space.

The coords slice must be of lesser or equal length to the number of axes. If it is less, missing (trailing) axes will be assumed to have zero values.

Returns None if this tuple is not applicable at the provided coordinates (e.g. if the resulting scalar is zero).

pub fn compute_scalar_f32(&self, coords: &[F2Dot14]) -> Option<f32>

Compute the floating point scalar for this tuple at the given location in variation space.

The coords slice must be of lesser or equal length to the number of axes. If it is less, missing (trailing) axes will be assumed to have zero values.

Returns None if this tuple is not applicable at the provided coordinates (e.g. if the resulting scalar is zero).

pub fn deltas(&'a self) -> TupleDeltaIter<'a, T>

Iterate over the deltas for this tuple.

This does not account for scaling. Returns only explicitly encoded deltas, e.g. an omission by IUP will not be present.

Trait Implementations

impl<'a, T: Clone> Clone for TupleVariation<'a, T>

fn clone(&self) -> TupleVariation<'a, T>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.