Merge branch 'feature/plot' into 'develop'

Plot

See merge request mchodzikiewicz/embedded-plots!2

Cargo.toml

@@ -8,7 +8,7 @@ edition = "2018"
 
 [dependencies]
 embedded-graphics = "0.6.0"
-
+itertools = "0.9.0"
 
 [dev-dependencies]
 embedded-graphics-simulator = "0.2.1"

examples/polyplot_mono.rs

@@ -0,0 +1,50 @@
+use embedded_graphics::{
+    pixelcolor::BinaryColor,
+    prelude::*,
+};
+
+use embedded_graphics_simulator::{
+    SimulatorDisplay,
+    Window,
+    OutputSettingsBuilder,
+    BinaryColorTheme
+};
+
+use embedded_plots::{
+    polyplot::{PolyPlot},
+    curve::{PlotPoint, Curve},
+};
+
+fn main() -> Result<(), core::convert::Infallible> {
+    let mut display: SimulatorDisplay<BinaryColor> = SimulatorDisplay::new(Size::new(128, 48));
+
+    let data1 = vec![
+        PlotPoint { x: 0, y: 0 },
+        PlotPoint { x: 1, y: 1 },
+        PlotPoint { x: 2, y: 1 },
+        PlotPoint { x: 3, y: 0 },
+    ];
+
+    let data2 = vec![
+        PlotPoint { x: 0, y: 1 },
+        PlotPoint { x: 1, y: 0 },
+        PlotPoint { x: 2, y: 3 },
+        PlotPoint { x: 3, y: 2 },
+        PlotPoint { x: 4, y: 2 },
+    ];
+
+    let curves = vec![
+        (Curve::from_data(data1.as_slice()), BinaryColor::On),
+        (Curve::from_data(data2.as_slice()), BinaryColor::On),
+    ];
+
+    let plot = PolyPlot::new(curves.as_slice(), Point { x: 10, y: 3 }, Point { x: 120, y: 45 });
+
+    plot.draw(&mut display)?;
+    let output_settings = OutputSettingsBuilder::new()
+        .theme(BinaryColorTheme::OledBlue)
+        .build();
+    Window::new("Basic plot", &output_settings).show_static(&display);
+
+    Ok(())
+}

examples/polyplot_rgb.rs

@@ -0,0 +1,49 @@
+use embedded_graphics::{
+    pixelcolor::Rgb565,
+    prelude::*,
+};
+
+use embedded_graphics_simulator::{
+    SimulatorDisplay,
+    Window,
+    OutputSettingsBuilder,
+
+};
+
+use embedded_plots::{
+    polyplot::{PolyPlot},
+    curve::{PlotPoint, Curve},
+};
+
+fn main() -> Result<(), core::convert::Infallible> {
+    let mut display: SimulatorDisplay<Rgb565> = SimulatorDisplay::new(Size::new(480, 272));
+
+    let data1 = vec![
+        PlotPoint { x: 0, y: 0 },
+        PlotPoint { x: 1, y: 1 },
+        PlotPoint { x: 2, y: 1 },
+        PlotPoint { x: 3, y: 0 },
+    ];
+
+    let data2 = vec![
+        PlotPoint { x: 0, y: 1 },
+        PlotPoint { x: 1, y: 0 },
+        PlotPoint { x: 2, y: 3 },
+        PlotPoint { x: 3, y: 2 },
+        PlotPoint { x: 4, y: 2 },
+    ];
+
+    let curves = vec![
+        (Curve::from_data(data1.as_slice()), RgbColor::YELLOW),
+        (Curve::from_data(data2.as_slice()), RgbColor::RED),
+    ];
+
+    let plot = PolyPlot::new(curves.as_slice(), Point { x: 10, y: 10 }, Point { x: 470, y: 260 });
+
+    plot.draw(&mut display)?;
+    let output_settings = OutputSettingsBuilder::new()
+        .build();
+    Window::new("Basic plot", &output_settings).show_static(&display);
+
+    Ok(())
+}

examples/single_plot_mono.rs

@@ -0,0 +1,34 @@
+use embedded_graphics::{
+    prelude::*,
+};
+
+use embedded_graphics_simulator::{SimulatorDisplay, Window, OutputSettingsBuilder, BinaryColorTheme};
+
+use embedded_plots::{
+    single_plot::{SinglePlot},
+    curve::{PlotPoint, Curve},
+};
+use embedded_graphics::pixelcolor::BinaryColor;
+
+fn main() -> Result<(), core::convert::Infallible> {
+    let mut display: SimulatorDisplay<BinaryColor> = SimulatorDisplay::new(Size::new(128, 48));
+
+    let data = vec![
+        PlotPoint { x: 0, y: 0 },
+        PlotPoint { x: 1, y: 1 },
+        PlotPoint { x: 2, y: 1 },
+        PlotPoint { x: 3, y: 0 },
+    ];
+    let curve = Curve::from_data(data.as_slice());
+
+    let plot = SinglePlot::new(&curve, BinaryColor::On, Point { x: 9, y: 3 }, Point { x: 120, y: 45 });
+
+    plot.draw(&mut display)?;
+    let output_settings = OutputSettingsBuilder::new()
+        .theme(BinaryColorTheme::OledBlue)
+        .build();
+    Window::new("Basic plot", &output_settings)
+        .show_static(&display);
+
+    Ok(())
+}

examples/single_plot_rgb.rs

@@ -0,0 +1,37 @@
+use embedded_graphics::{
+    pixelcolor::Rgb565,
+    prelude::*,
+};
+
+use embedded_graphics_simulator::{
+    SimulatorDisplay,
+    Window,
+    OutputSettingsBuilder,
+
+};
+
+use embedded_plots::{
+    single_plot::{SinglePlot},
+    curve::{PlotPoint, Curve},
+};
+
+fn main() -> Result<(), core::convert::Infallible> {
+    let mut display: SimulatorDisplay<Rgb565> = SimulatorDisplay::new(Size::new(480, 272));
+
+    let data = vec![
+        PlotPoint { x: 0, y: 0 },
+        PlotPoint { x: 1, y: 1 },
+        PlotPoint { x: 2, y: 1 },
+        PlotPoint { x: 3, y: 0 },
+    ];
+    let curve = Curve::from_data(data.as_slice());
+
+    let plot = SinglePlot::new(&curve, RgbColor::YELLOW, Point { x: 10, y: 10 }, Point { x: 470, y: 260 });
+
+    plot.draw(&mut display)?;
+    let output_settings = OutputSettingsBuilder::new()
+        .build();
+    Window::new("Basic plot", &output_settings).show_static(&display);
+
+    Ok(())
+}

src/curve.rs

@@ -3,52 +3,72 @@ use core::ops::{Range};
 use crate::range_conv::Scalable;
 use crate::drawable_curve::DrawableCurve;
 use embedded_graphics::prelude::*;
+use itertools::MinMaxResult::MinMax;
+use itertools::{Itertools, MinMaxResult};
 
 pub struct PlotPoint {
     pub x: i32,
     pub y: i32,
 }
 
-pub struct Curve<'a>{
+pub struct Curve<'a> {
     points: &'a [PlotPoint],
+    x_range: Range<i32>,
+    y_range: Range<i32>,
 }
 
 impl<'a> Curve<'a> {
-    pub fn new(points: &'a [PlotPoint]) -> Curve {
-        Curve {points}
+    pub fn new(points: &'a [PlotPoint], x_range: Range<i32>, y_range: Range<i32>) -> Curve {
+        Curve { points, x_range, y_range }
     }
 
-    pub fn into_drawable_curve<C>(self,
-                                  x_range: &'a Range<i32>,
-                                  y_range: &'a Range<i32>,
-                                  top_left : &'a Point,
+    pub fn from_data(points: &'a [PlotPoint]) -> Curve {
+        let x_range = match points
+            .iter()
+            .map(|p| (p.x))
+            .minmax() {
+            MinMaxResult::NoElements => 0..0,
+            MinMaxResult::OneElement(v) => v..v,
+            MinMax(min, max) => min..max,
+        };
+
+        let y_range = match points.iter().map(|p| (p.y)).minmax() {
+            MinMaxResult::NoElements => 0..0,
+            MinMaxResult::OneElement(v) => v..v,
+            MinMax(min, max) => min..max,
+        };
+
+        Curve { points, x_range, y_range }
+    }
+
+    pub fn into_drawable_curve<C>(&self,
+                                  top_left: &'a Point,
                                   bottom_right: &'a Point,
-                                  color: C
-    ) -> DrawableCurve<C,impl Iterator<Item=Point> + 'a>
+                                  color: C,
+    ) -> DrawableCurve<C, impl Iterator<Item=Point> + '_>
         where C: PixelColor
     {
         assert!(top_left.x < bottom_right.x);
         assert!(top_left.y < bottom_right.y);
-        assert!(!x_range.is_empty());
-        assert!(!y_range.is_empty());
+        assert!(!self.x_range.is_empty());
+        assert!(!self.y_range.is_empty());
 
         let it = self.points.iter()
-            .map(move |p| Point{
+            .map(move |p| Point {
                 x: p.x.scale_between_ranges(
-                    x_range,
-                    &Range{start: top_left.x, end: bottom_right.x}
+                    &self.x_range,
+                    &Range { start: top_left.x, end: bottom_right.x },
                 ),
                 y: p.y.scale_between_ranges(
-                    y_range,
-                    &Range{start: bottom_right.y, end: top_left.y}
+                    &self.y_range,
+                    &Range { start: bottom_right.y, end: top_left.y },
                 ),
             });
-        DrawableCurve::new(it,color)
+        DrawableCurve::new(it, color)
     }
 }
 
 
-
 #[cfg(test)]
 mod tests {
     #[test]

src/drawable_curve.rs

@@ -13,28 +13,29 @@ pub struct DrawableCurve<C, I>
     color: C,
 }
 
-impl<C,I> DrawableCurve<C,I>
+impl<C, I> DrawableCurve<C, I>
     where
         C: PixelColor,
         I: Iterator<Item=Point>,
 {
-    pub fn new(data: I,color : C) -> DrawableCurve<C,I> {
+    pub fn new(data: I, color: C) -> DrawableCurve<C, I> {
         DrawableCurve {
             scaled_data: data,
             color,
         }
     }
 }
-impl<C,I> Drawable<C> for DrawableCurve<C,I>
+
+impl<C, I> Drawable<C> for DrawableCurve<C, I>
     where C: PixelColor,
           I: Iterator<Item=Point>,
 {
-    fn draw<D: DrawTarget<C>>(self, display: &mut D) -> Result<(), <D as DrawTarget<C>>::Error> {
-        let style = PrimitiveStyle::with_stroke(self.color,2);
+    fn draw<D: DrawTarget<C>>(self, display: &mut D) -> Result<(), D::Error> {
+        let style = PrimitiveStyle::with_stroke(self.color, 2);
         let mut iter = self.scaled_data.into_iter();
         let mut prev = iter.next().unwrap();
         for point in iter {
-            Line::new(prev,point)
+            Line::new(prev, point)
                 .into_styled(style)
                 .draw(display)?;
             prev = point;

src/lib.rs

@@ -1,6 +1,8 @@
 #![no_std]
+
 pub mod curve;
-pub mod plot;
+pub mod polyplot;
+pub mod single_plot;
 
 mod drawable_curve;
 mod range_conv;

src/polyplot.rs

@@ -0,0 +1,39 @@
+use crate::curve::Curve;
+use embedded_graphics::drawable::Drawable;
+use embedded_graphics::DrawTarget;
+use embedded_graphics::prelude::Point;
+use embedded_graphics::pixelcolor::PixelColor;
+
+pub struct PolyPlot<'a, C>
+    where
+        C: PixelColor
+{
+    curves: &'a [(Curve<'a>, C)],
+    top_left: Point,
+    bottom_right: Point,
+}
+
+impl<'a, C> PolyPlot<'a, C>
+    where
+        C: PixelColor
+{
+    pub fn new(curves: &'a [(Curve<'a>, C)], top_left: Point, bottom_right: Point) -> PolyPlot<C> {
+        PolyPlot { curves, top_left, bottom_right }
+    }
+}
+
+impl<'a, C> Drawable<C> for PolyPlot<'a, C>
+    where
+        C: PixelColor
+{
+    fn draw<D: DrawTarget<C>>(self, display: &mut D) -> Result<(), D::Error> {
+        for (curve, color) in self.curves {
+            curve.into_drawable_curve(
+                &self.top_left,
+                &self.bottom_right,
+                *color,
+            ).draw(display)?;
+        }
+        Ok(())
+    }
+}

src/range_conv.rs

@@ -4,7 +4,7 @@ pub trait Scalable<T>
     where
         T: Copy + Add<Output=T> + Sub<Output=T> + Mul<Output=T> + Div<Output=T>,
 {
-    fn scale_between_ranges(&self,input_range: &Range<T>, output_range: &Range<T>) -> T;
+    fn scale_between_ranges(&self, input_range: &Range<T>, output_range: &Range<T>) -> T;
 }
 
 impl<T> Scalable<T> for T
@@ -19,21 +19,20 @@ impl<T> Scalable<T> for T
 }
 
 
-
 #[cfg(test)]
 mod tests {
     use core::ops::Range;
     use test_case::test_case;
     use crate::range_conv::Scalable;
 
-    #[test_case(0..10,0..10,5 => 5 ; "equal ranges")]
-    #[test_case(0..10,0..20,5 => 10 ; "double")]
-    #[test_case(0..20,0..10,10 => 5 ; "half")]
-    #[test_case(-20..20,0..10,0 => 5 ; "negative input range")]
-    #[test_case(0..10,-20..20,5 => 0 ; "negative output range")]
-    #[test_case(0..10,10..0,2 => 8 ; "reversing")]
-    #[test_case(-20..20,0..20,-10 => 5 ; "reversing negative range")]
-    fn convert(in_range: Range<i32>,out_range: Range<i32>,val: i32) -> i32 {
-        val.scale_between_ranges(&in_range,&out_range)
+    #[test_case(0..10, 0..10, 5 => 5; "equal ranges")]
+    #[test_case(0..10, 0..20, 5 => 10; "double")]
+    #[test_case(0..20, 0..10, 10 => 5; "half")]
+    #[test_case(- 20..20, 0..10, 0 => 5; "negative input range")]
+    #[test_case(0..10, - 20..20, 5 => 0; "negative output range")]
+    #[test_case(0..10, 10..0, 2 => 8; "reversing")]
+    #[test_case(- 20..20, 0..20, - 10 => 5; "reversing negative range")]
+    fn convert(in_range: Range<i32>, out_range: Range<i32>, val: i32) -> i32 {
+        val.scale_between_ranges(&in_range, &out_range)
     }
 }

src/single_plot.rs

@@ -0,0 +1,39 @@
+use crate::curve::Curve;
+use embedded_graphics::drawable::Drawable;
+use embedded_graphics::DrawTarget;
+use embedded_graphics::prelude::Point;
+use embedded_graphics::pixelcolor::PixelColor;
+
+pub struct SinglePlot<'a, C>
+    where
+        C: PixelColor
+{
+    curve: &'a Curve<'a>,
+    color: C,
+    top_left: Point,
+    bottom_right: Point,
+}
+
+impl<'a, C> SinglePlot<'a, C>
+    where
+        C: PixelColor
+{
+    pub fn new(curve: &'a Curve<'a>, color: C, top_left: Point, bottom_right: Point) -> SinglePlot<'a, C> {
+        SinglePlot { curve, color, top_left, bottom_right}
+    }
+}
+
+impl<'a, C> Drawable<C> for SinglePlot<'a, C>
+    where
+        C: PixelColor
+{
+    fn draw<D: DrawTarget<C>>(self, display: &mut D) -> Result<(), D::Error> {
+
+        self.curve.into_drawable_curve(
+            &self.top_left,
+            &self.bottom_right,
+            self.color,
+        ).draw(display)?;
+        Ok(())
+    }
+}