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-rw-r--r--src/metric/length.rs44
1 files changed, 44 insertions, 0 deletions
diff --git a/src/metric/length.rs b/src/metric/length.rs
new file mode 100644
index 0000000..a605ad2
--- /dev/null
+++ b/src/metric/length.rs
@@ -0,0 +1,44 @@
+use std::fmt::{Display, Formatter, Result};
+use std::ops::{Add, Sub, AddAssign, SubAssign, Div, Mul, DivAssign, MulAssign};
+
+use crate::metric::Unit;
+use crate::metric::Primitive;
+
+use crate::declare_unit_basics;
+
+#[derive(Copy, Clone, Debug, PartialOrd, PartialEq)]
+pub enum Length {
+ Base(f64, fn(f64) -> f64, &'static str),
+ Canonical(f64),
+ Meter(f64),
+ Metre(f64),
+ Centimeter(f64),
+ Centimetre(f64),
+ Kilometer(f64),
+ Kilometre(f64),
+ Inch(f64), // Zoll
+ Foot(f64), // Fuß
+ Yard(f64), // Schritt
+ Mile(f64), // Meile
+}
+
+impl Unit<Length> for Length {
+ fn to_si_unit(&self) -> Length {
+ match self {
+ Length::Base(_, _, _) => self.clone(),
+ Length::Canonical(value) => Length::Base(value.clone(), |x| x, "m"),
+ Length::Meter(value) => Length::Base(value.clone(), |x| x, "m"),
+ Length::Metre(value) => Length::Base(value.clone(), |x| x, "m"),
+ Length::Centimeter(value) => Length::Base(value / 100.0, |x| x * 100.0, "cm"),
+ Length::Centimetre(value) => Length::Base(value / 100.0, |x| x * 100.0, "cm"),
+ Length::Kilometer(value) => Length::Base(value * 1000.0, |x| x / 1000.0, "km"),
+ Length::Kilometre(value) => Length::Base(value * 1000.0, |x| x / 1000.0, "km"),
+ Length::Inch(value) => Length::Base(value * 0.0254, |x| x / 0.0254, "in"),
+ Length::Foot(value) => Length::Base(value * 0.3048, |x| x / 0.3048, "foot"),
+ Length::Yard(value) => Length::Base(value * 0.9144, |x| x / 0.9144, "yard"),
+ Length::Mile(value) => Length::Base(value * 1609.344, |x| x / 1609.344, "mile"),
+ }
+ }
+}
+
+declare_unit_basics!(Length); \ No newline at end of file