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Remove the Pathfinder 2 orientation computation code

This commit is contained in:
Patrick Walton 2019-02-12 19:56:44 -08:00
parent dbc14a3fc0
commit cb9c14bd59
1 changed files with 0 additions and 41 deletions
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41
geometry/src/orientation.rs
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@ -9,8 +9,6 @@
// except according to those terms.
use crate::outline::Outline;
use euclid::Point2D;
use lyon_path::PathEvent;
#[derive(Clone, Copy, Debug, PartialEq)]
pub enum Orientation {
@ -20,40 +18,6 @@ pub enum Orientation {
impl Orientation {
/// This follows the FreeType algorithm.
pub fn from_path<I>(stream: I) -> Orientation where I: Iterator<Item = PathEvent> {
let (mut from, mut subpath_start) = (Point2D::zero(), Point2D::zero());
let mut area = 0.0;
for event in stream {
match event {
PathEvent::MoveTo(to) => {
from = to;
subpath_start = to;
}
PathEvent::LineTo(to) => {
area += det(&from, &to);
from = to;
}
PathEvent::QuadraticTo(ctrl, to) => {
area += det(&from, &ctrl) + det(&ctrl, &to);
from = to;
}
PathEvent::CubicTo(ctrl0, ctrl1, to) => {
area += det(&from, &ctrl0) + det(&ctrl0, &ctrl1) + det(&ctrl1, &to);
from = to;
}
PathEvent::Arc(..) => {
// TODO(pcwalton)
}
PathEvent::Close => {
area += det(&from, &subpath_start);
from = subpath_start;
}
}
}
Orientation::from_area(area)
}
// Pathfinder 3 version
pub fn from_outline(outline: &Outline) -> Orientation {
let mut area = 0.0;
for contour in &outline.contours {
@ -77,8 +41,3 @@ impl Orientation {
}
}
}
fn det(a: &Point2D<f32>, b: &Point2D<f32>) -> f32 {
a.x * b.y - a.y * b.x
}