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use super::View;
#[derive(Default, Clone, Debug)]
pub struct Echo {
out: f64,
}
impl Echo {
#[inline(always)]
pub fn new() -> Echo {
Echo { out: 0.0 }
}
}
impl View for Echo {
#[inline(always)]
fn update(&mut self, val: f64) {
self.out = val;
}
#[inline(always)]
fn last(&self) -> f64 {
self.out
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::plot::plot_values;
use crate::test_data::TEST_DATA;
#[test]
fn echo_plot() {
let mut echo = Echo::new();
let mut out: Vec<f64> = Vec::new();
for v in &TEST_DATA {
echo.update(*v);
out.push(echo.last());
}
let filename = "img/echo.png";
plot_values(out, filename).unwrap();
}
}