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use crate::axis::{Horizontal, Vertical};
use crate::point::Point;
use crate::scale::Scale;
#[derive(Default)]
pub struct Domain<X, Y>
where
X: Scale + Default,
Y: Scale + Default,
{
x_scale: X,
y_scale: Y,
}
impl<X, Y> Domain<X, Y>
where
X: Scale + Default,
Y: Scale + Default,
{
pub fn from_data<P>(data: &[P]) -> Self
where
P: Point,
{
let x_scale = X::from_data(data, |pt| pt.x());
let y_scale = Y::from_data(data, |pt| pt.y());
Domain { x_scale, y_scale }
}
pub fn with_data<P>(mut self, data: &[P]) -> Self
where
P: Point,
{
self.x_scale = self.x_scale.union(X::from_data(data, |pt| pt.x()));
self.y_scale = self.y_scale.union(Y::from_data(data, |pt| pt.y()));
self
}
pub fn with_x<P>(mut self, data: &[P]) -> Self
where
P: Point,
{
self.x_scale = X::from_data(data, |pt| pt.x());
self
}
pub fn with_y<P>(mut self, data: &[P]) -> Self
where
P: Point,
{
self.y_scale = Y::from_data(data, |pt| pt.y());
self
}
pub fn x_axis(&self) -> Horizontal {
Horizontal::new(self.x_scale.ticks())
}
pub fn y_axis(&self) -> Vertical {
Vertical::new(self.y_scale.inverted().ticks())
}
pub(crate) fn x_norm(&self, x: f32) -> f32 {
self.x_scale.normalize(x)
}
pub(crate) fn y_norm(&self, y: f32) -> f32 {
self.y_scale.inverted().normalize(y)
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::scale::Numeric;
#[test]
fn test() {
let data = [(45.0, 150.0), (90.0, 200.0)];
let domain = Domain::<Numeric, Numeric>::from_data(&data);
let ticks = Numeric::new(45.0, 90.0).ticks();
assert_eq!(domain.x_axis(), Horizontal::new(ticks));
}
}