Enum norad::glyph::PointType

pub enum PointType {
    Move,
    Line,
    OffCurve,
    Curve,
    QCurve,
}

Variants

Move

A point of this type must be the first in a contour. The reverse is not true: a contour does not necessarily start with a move point. When a contour does start with a move point, it signifies the beginning of an open contour. A closed contour does not start with a move and is defined as a cyclic list of points, with no predominant start point. There is always a next point and a previous point. For this purpose the list of points can be seen as endless in both directions. The actual list of points can be rotated arbitrarily (by removing the first N points and appending them at the end) while still describing the same outline.

Line

Draw a straight line from the previous point to this point. The previous point must be a move, a line, a curve or a qcurve. It must not be an offcurve.

OffCurve

This point is part of a curve segment that goes up to the next point that is either a curve or a qcurve.

Curve

Draw a cubic bezier curve from the last non-offcurve point to this point. The number of offcurve points can be zero, one or two. If the number of offcurve points is zero, a straight line is drawn. If it is one, a quadratic curve is drawn. If it is two, a regular cubic bezier is drawn.

QCurve

Similar to curve, but uses quadratic curves, using the TrueType “implied on-curve points” principle.

Trait Implementations

impl Clone for PointType

fn clone(&self) -> PointType

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialEq<PointType> for PointType

fn eq(&self, other: &PointType) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use] fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl Debug for PointType

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl FromStr for PointType

type Err = ErrorKind

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl StructuralPartialEq for PointType