More phone-cord-looking very stress-testy nested examples

README.md

@@ -62,3 +62,5 @@
 - Take a square.  Wrap it around to a torus. Now add a twist (about
   the axis that is normal to the square). This is simple, but it looks
   pretty cool.
+- How can I take tangled things like the cinquefoil and produce more
+  'iterative' versions that still weave around?

src/examples.rs

@@ -165,7 +165,9 @@ pub fn twisty_torus() -> Rule<TorusCtxt> {
 
     let rad = 1.0;
     let rad2 = 8.0;
-    let dx = 0.01;
+    let rad3 = 24.0;
+    let rz3 = 0.0004;
+    let dx = 0.00;
     let rx = 0.01;
     let rz = 0.30;
     let ang = 0.1;
@@ -181,10 +183,9 @@ pub fn twisty_torus() -> Rule<TorusCtxt> {
                 init: false,
                 count: count + 1,
                 stack: [
-                    Transform::new().translate(dx, 0.0, 0.0).rotate(x, rx) * stack[0],
-                    // stack[0], //Transform::new().rotate(z, 0.05 * (count as f32)).translate(0.0, rad2, 0.0),
-                    Transform::new().rotate(z, rz) * stack[1],
-                    stack[2],
+                    Transform::new().rotate(z, rz3) * stack[0],
+                    Transform::new().translate(dx, 0.0, 0.0).rotate(x, rx) * stack[1],
+                    Transform::new().rotate(z, rz) * stack[2],
                 ],
             },
         };
@@ -227,9 +228,9 @@ pub fn twisty_torus() -> Rule<TorusCtxt> {
             init: true,
             count: 0,
             stack: [
+                Transform::new().translate(0.0, rad3, 0.0),
                 Transform::new().translate(0.0, rad2, 0.0),
                 Transform::new().translate(rad, 0.0, 0.0),
-                Transform::new(), // .translate(dx0, 0.0, 0.0),
             ],
         },
     }

src/lib.rs

@@ -77,7 +77,12 @@ mod tests {
 
     #[test]
     fn twisty_torus() {
-        run_test(examples::twisty_torus(), 400, "twisty_torus", false);
+        run_test(examples::twisty_torus(), 3000, "twisty_torus", false);
+    }
+
+    #[test]
+    fn twisty_torus_full() {
+        run_test(examples::twisty_torus(), 40000, "twisty_torus_full", false);
     }
 
     fn wind_chime_mistake_thing() {