6 files changed, 59 insertions, 20 deletions
diff --git a/core/src/angle.rs b/core/src/angle.rs
index 75a57c76..102b69cf 100644
--- a/core/src/angle.rs
+++ b/core/src/angle.rs
@@ -1,32 +1,72 @@
 use crate::{Point, Rectangle, Vector};
-use std::f32::consts::PI;
 
-#[derive(Debug, Copy, Clone, PartialEq)]
+use std::f32::consts::{FRAC_PI_2, PI};
+use std::ops::RangeInclusive;
+
 /// Degrees
+#[derive(Debug, Copy, Clone, PartialEq, PartialOrd)]
 pub struct Degrees(pub f32);
 
-#[derive(Debug, Copy, Clone, PartialEq)]
 /// Radians
+#[derive(Debug, Copy, Clone, PartialEq, PartialOrd)]
 pub struct Radians(pub f32);
 
+impl Radians {
+    /// The range of radians of a circle.
+    pub const RANGE: RangeInclusive<Radians> = Radians(0.0)..=Radians(2.0 * PI);
+}
+
 impl From<Degrees> for Radians {
     fn from(degrees: Degrees) -> Self {
-        Radians(degrees.0 * PI / 180.0)
+        Self(degrees.0 * PI / 180.0)
+    }
+}
+
+impl From<f32> for Radians {
+    fn from(radians: f32) -> Self {
+        Self(radians)
+    }
+}
+
+impl From<u8> for Radians {
+    fn from(radians: u8) -> Self {
+        Self(f32::from(radians))
+    }
+}
+
+impl From<Radians> for f64 {
+    fn from(radians: Radians) -> Self {
+        Self::from(radians.0)
+    }
+}
+
+impl num_traits::FromPrimitive for Radians {
+    fn from_i64(n: i64) -> Option<Self> {
+        Some(Self(n as f32))
+    }
+
+    fn from_u64(n: u64) -> Option<Self> {
+        Some(Self(n as f32))
+    }
+
+    fn from_f64(n: f64) -> Option<Self> {
+        Some(Self(n as f32))
     }
 }
 
 impl Radians {
-    /// Calculates the line in which the [`Angle`] intercepts the `bounds`.
+    /// Calculates the line in which the angle intercepts the `bounds`.
     pub fn to_distance(&self, bounds: &Rectangle) -> (Point, Point) {
-        let v1 = Vector::new(f32::cos(self.0), f32::sin(self.0));
+        let angle = self.0 - FRAC_PI_2;
+        let r = Vector::new(f32::cos(angle), f32::sin(angle));
 
-        let distance_to_rect = f32::min(
-            f32::abs((bounds.y - bounds.center().y) / v1.y),
-            f32::abs(((bounds.x + bounds.width) - bounds.center().x) / v1.x),
+        let distance_to_rect = f32::max(
+            f32::abs(r.x * bounds.width / 2.0),
+            f32::abs(r.y * bounds.height / 2.0),
         );
 
-        let start = bounds.center() + v1 * distance_to_rect;
-        let end = bounds.center() - v1 * distance_to_rect;
+        let start = bounds.center() - r * distance_to_rect;
+        let end = bounds.center() + r * distance_to_rect;
 
         (start, end)
     }
diff --git a/core/src/gradient.rs b/core/src/gradient.rs
index e19622fb..4a0d5ea0 100644
--- a/core/src/gradient.rs
+++ b/core/src/gradient.rs
@@ -6,10 +6,8 @@ use std::cmp::Ordering;
 #[derive(Debug, Clone, Copy, PartialEq)]
 /// A fill which transitions colors progressively along a direction, either linearly, radially (TBD),
 /// or conically (TBD).
-///
-/// For a gradient which can be used as a fill on a canvas, see [`iced_graphics::Gradient`].
 pub enum Gradient {
-    /// A linear gradient interpolates colors along a direction at a specific [`Angle`].
+    /// A linear gradient interpolates colors along a direction at a specific angle.
     Linear(Linear),
 }
 
diff --git a/core/src/lib.rs b/core/src/lib.rs
index c1c8424b..1bfba7bd 100644
--- a/core/src/lib.rs
+++ b/core/src/lib.rs
@@ -9,6 +9,7 @@
 #![doc(
     html_logo_url = "https://raw.githubusercontent.com/iced-rs/iced/9ab6923e943f784985e9ef9ca28b10278297225d/docs/logo.svg"
 )]
+#![forbid(unsafe_code, rust_2018_idioms)]
 #![deny(
     missing_debug_implementations,
     missing_docs,
@@ -17,9 +18,9 @@
     clippy::from_over_into,
     clippy::needless_borrow,
     clippy::new_without_default,
-    clippy::useless_conversion
+    clippy::useless_conversion,
+    rustdoc::broken_intra_doc_links
 )]
-#![forbid(unsafe_code, rust_2018_idioms)]
 #![allow(clippy::inherent_to_string, clippy::type_complexity)]
 pub mod alignment;
 pub mod clipboard;
diff --git a/core/src/shell.rs b/core/src/shell.rs
index 74a5c616..246c937a 100644
--- a/core/src/shell.rs
+++ b/core/src/shell.rs
@@ -35,7 +35,7 @@ impl<'a, Message> Shell<'a, Message> {
         self.messages.push(message);
     }
 
-    /// Requests a new frame to be drawn at the given [`Instant`].
+    /// Requests a new frame to be drawn.
     pub fn request_redraw(&mut self, request: window::RedrawRequest) {
         match self.redraw_request {
             None => {
@@ -48,7 +48,7 @@ impl<'a, Message> Shell<'a, Message> {
         }
     }
 
-    /// Returns the requested [`Instant`] a redraw should happen, if any.
+    /// Returns the request a redraw should happen, if any.
     pub fn redraw_request(&self) -> Option<window::RedrawRequest> {
         self.redraw_request
     }
diff --git a/core/src/window/icon.rs b/core/src/window/icon.rs
index 31868ecf..2fc48e3b 100644
--- a/core/src/window/icon.rs
+++ b/core/src/window/icon.rs
@@ -49,7 +49,7 @@ impl Icon {
 }
 
 #[derive(Debug, thiserror::Error)]
-/// An error produced when using [`Icon::from_rgba`] with invalid arguments.
+/// An error produced when using [`from_rgba`] with invalid arguments.
 pub enum Error {
     /// Produced when the length of the `rgba` argument isn't divisible by 4, thus `rgba` can't be
     /// safely interpreted as 32bpp RGBA pixels.
diff --git a/core/src/window/redraw_request.rs b/core/src/window/redraw_request.rs
index 3b4f0fd3..8a59e83c 100644
--- a/core/src/window/redraw_request.rs
+++ b/core/src/window/redraw_request.rs
@@ -13,7 +13,7 @@ pub enum RedrawRequest {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use std::time::{Duration, Instant};
+    use crate::time::{Duration, Instant};
 
     #[test]
     fn ordering() {