constructions: Added Point.sitsRoughlyOn example

packages/examples/src/point_sitsroughlyon.js

@@ -0,0 +1,20 @@
+import { box } from "./shared";
+
+export default part => {
+  // prettier-ignore
+  let {Point, points, Snippet, snippets, macro} = part.shorthand();
+
+  box(part);
+
+  let s;
+  for (let i = 0; i < 10; i++) {
+    points[`a${i}`] = new Point(i * 10, 40);
+    points[`b${i}`] = new Point(i * 10, i * 8);
+    if (points[`a${i}`].sitsRoughlyOn(points[`b${i}`])) s = "notch";
+    else s = "x";
+    snippets[`b${i}`] = new Snippet(s, points[`b${i}`]);
+    snippets[`a${i}`] = new Snippet(s, points[`a${i}`]);
+  }
+
+  return part;
+};