Rename methods and use f64's conversion between radians and degrees

diff --git a/src/common.rs b/src/common.rs
index 591d781..1cf205e 100644 (file)
--- a/src/common.rs
+++ b/src/common.rs
@@ -26,12 +26,12 @@ impl Point2D<f64> {
        }
     }
 
-    pub fn radians(&self) -> Radians {
+    pub fn to_radians(&self) -> Radians {
        Radians(self.y.atan2(self.x))
     }
 
-    pub fn degrees(&self) -> Degrees {
-       self.radians().to_degrees()
+    pub fn to_degrees(&self) -> Degrees {
+       self.to_radians().to_degrees()
     }
 
     pub fn to_i32(self) -> Point2D<i32> {
@@ -145,9 +145,10 @@ impl<T> From<Point2D<T>> for (T, T) {
 
 impl From<Degrees> for Point2D<f64> {
     fn from(item: Degrees) -> Self {
+       let r = item.0.to_radians();
         Point2D {
-            x: (item.0 * std::f64::consts::PI / 180.0).cos(),
-            y: (item.0 * std::f64::consts::PI / 180.0).sin(),
+            x: r.cos(),
+            y: r.sin(),
         }
     }
 }
@@ -169,14 +170,14 @@ pub struct Radians(pub f64);
 impl Degrees {
     #[allow(dead_code)]
     fn to_radians(&self) -> Radians {
-       Radians(self.0 * std::f64::consts::PI / 180.0)
+       Radians(self.0.to_radians())
     }
 }
 
 impl Radians {
     #[allow(dead_code)]
     fn to_degrees(&self) -> Degrees {
-       Degrees(self.0 * 180.0 * std::f64::consts::FRAC_1_PI)
+       Degrees(self.0.to_degrees())
     }
 }