Some little experiments

.gitignore

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+/target
+**/*.rs.bk
+*~

Cargo.lock

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+name = "axidraw-experiments"
+version = "0.1.0"
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+ "gunpowder_treason 0.1.0",
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Cargo.toml

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+[package]
+name = "axidraw-experiments"
+version = "0.1.0"
+authors = ["Getty Ritter <gettylefou@gmail.com>"]
+
+[dependencies]
+gunpowder_treason = { path = "../gunpowder_treason" }
+rand = "*"
+itertools = "*"
+
+[[bin]]
+name = "circles"
+path = "src/circles.rs"
+
+[[bin]]
+name = "hexes"
+path = "src/hexes.rs"

src/circles.rs

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+extern crate gunpowder_treason as gt;
+#[macro_use] extern crate itertools;
+extern crate rand;
+
+fn main() {
+    let mut drawing = gt::svg(8.5, 11.0);
+
+    for y in 1..=10 {
+        drawing.add(gt::line(0.75, y as f64)
+                    .to(8.5 - 0.75, y as f64));
+    }
+    for x in 0..=7 {
+        drawing.add(gt::line(0.75 + x as f64, 1.0)
+                    .to(0.75 + x as f64, 10.0));
+    }
+    for (x, y) in iproduct!(0..7, 1..10) {
+        for _ in 0..(rand::random::<u32>() % 4) + 1 {
+            drawing.add(gt::circle(
+                (1.25 + x as f64, 0.5 + y as f64),
+                0.2 * rand::random::<f64>(),
+            ));
+        }
+    }
+    drawing.to_stdout();
+}

src/hexes.rs

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+extern crate gunpowder_treason as gt;
+#[macro_use] extern crate itertools;
+
+use std::f64::consts::PI;
+
+fn main() {
+    let mut drawing = gt::svg(11.0, 14.0);
+    drawing.add(gt::rect((0.0, 0.0), (11.0, 14.0)));
+    const N: f64 = 0.2;
+    const THETA: f64 = PI / 3.0;
+    const COLS: u32 = 16;
+    const ROWS: u32 = 36;
+
+    const XO: f64 = 0.8;
+    const YO: f64 = 0.8;
+
+    for (y, x) in iproduct!(0..ROWS, 0..COLS) {
+        let d = 2.0 * (N + THETA.cos() * N);
+        let a = THETA.cos() * N;
+        let h = THETA.sin() * N;
+        let h2 = THETA.sin() * N * 2.0;
+
+        let by = YO + y as f64 * h2;
+
+        drawing.add(
+            gt::line(XO + d * x as f64, by)
+                .to(XO + d * x as f64 - a, by + h)
+        );
+        drawing.add(
+            gt::line(XO + d * x as f64, by)
+                .to(XO + d * x as f64 + N, by)
+        );
+        drawing.add(
+            gt::line(XO + d * x as f64 + N, by)
+                .to(XO + d * x as f64 + N + a, by + h)
+        );
+        if x < COLS - 1 {
+            drawing.add(
+                gt::line(XO + d * x as f64 + N + a, by + h)
+                    .to(XO + d * x as f64 + N * 2.0 + a, by + h)
+            );
+        }
+
+        drawing.add(
+            gt::line(XO + d * x as f64 - a, by + h)
+                .to(XO + d * x as f64, by + h * 2.0)
+        );
+        if y == ROWS - 1 {
+            drawing.add(
+                gt::line(XO + d * x as f64, by + h * 2.0)
+                    .to(XO + d * x as f64 + N, by + h * 2.0)
+            );
+        }
+        drawing.add(
+            gt::line(XO + d * x as f64 + N + a, by + h)
+                .to(XO + d * x as f64 + N, by + h * 2.0)
+        );
+
+    }
+    drawing.to_stdout();
+}