construction: Ported to v0.29

packages/examples/src/utils_lineintersectscircle.js

@@ -0,0 +1,54 @@
+export default part => {
+  let {
+    debug,
+    Point,
+    points,
+    Path,
+    paths,
+    Snippet,
+    snippets,
+    utils
+  } = part.shorthand();
+
+  points.A = new Point(45, 45)
+    .attr("data-circle", 35)
+    .attr("data-circle-class", "fabric");
+  points.B = new Point(5, 50);
+  points.C = new Point(25, 30);
+
+  points.D = new Point(5, 65);
+  points.E = new Point(65, 5);
+  points.F = new Point(15, 75);
+  points.G = new Point(75, 15);
+
+  paths.line1 = new Path().move(points.B).line(points.C);
+  paths.line2 = new Path().move(points.D).line(points.E);
+  paths.line3 = new Path().move(points.F).line(points.G);
+
+  let intersections1 = utils.lineIntersectsCircle(
+    points.A,
+    points.A.attributes.get("data-circle"),
+    points.B,
+    points.C
+  );
+  let intersections2 = utils.lineIntersectsCircle(
+    points.A,
+    points.A.attributes.get("data-circle"),
+    points.D,
+    points.E,
+    "y"
+  );
+  let intersections3 = utils.lineIntersectsCircle(
+    points.A,
+    points.A.attributes.get("data-circle"),
+    points.F,
+    points.G
+  );
+  snippets.first1 = new Snippet("bnotch", intersections1[0]);
+  snippets.first2 = new Snippet("bnotch", intersections2[0]);
+  snippets.second2 = new Snippet("x", intersections2[1]);
+  snippets.first3 = new Snippet("bnotch", intersections3[0]);
+  snippets.second3 = new Snippet("x", intersections3[1]);
+
+  return part;
+};