1 files changed, 33 insertions, 0 deletions
diff --git a/test/when/raphael-utils.js b/test/when/raphael-utils.js
new file mode 100644
index 0000000..626713e
--- /dev/null
+++ b/test/when/raphael-utils.js
@@ -0,0 +1,33 @@
+Raphael.fn.drawGrid = function (x, y, w, h, wv, hv, color) {
+    color = color || "#000";
+    var path = ["M", Math.round(x) + .5, Math.round(y) + .5, "L", Math.round(x + w) + .5, Math.round(y) + .5, Math.round(x + w) + .5, Math.round(y + h) + .5, Math.round(x) + .5, Math.round(y + h) + .5, Math.round(x) + .5, Math.round(y) + .5],
+        rowHeight = h / hv,
+        columnWidth = w / wv;
+    for (var i = 1; i < hv; i++) {
+        path = path.concat(["M", Math.round(x) + .5, Math.round(y + i * rowHeight) + .5, "H", Math.round(x + w) + .5]);
+    }
+    for (i = 1; i < wv; i++) {
+        path = path.concat(["M", Math.round(x + i * columnWidth) + .5, Math.round(y) + .5, "V", Math.round(y + h) + .5]);
+    }
+    return this.path(path.join(",")).attr({stroke: color});
+};
+
+function getAnchors(p1x, p1y, p2x, p2y, p3x, p3y) {
+        var l1 = (p2x - p1x) / 2,
+            l2 = (p3x - p2x) / 2,
+            a = Math.atan((p2x - p1x) / Math.abs(p2y - p1y)),
+            b = Math.atan((p3x - p2x) / Math.abs(p2y - p3y));
+        a = p1y < p2y ? Math.PI - a : a;
+        b = p3y < p2y ? Math.PI - b : b;
+        var alpha = Math.PI / 2 - ((a + b) % (Math.PI * 2)) / 2,
+            dx1 = l1 * Math.sin(alpha + a),
+            dy1 = l1 * Math.cos(alpha + a),
+            dx2 = l2 * Math.sin(alpha + b),
+            dy2 = l2 * Math.cos(alpha + b);
+        return {
+            x1: p2x - dx1,
+            y1: p2y + dy1,
+            x2: p2x + dx2,
+            y2: p2y + dy2
+        };
+}
+\ No newline at end of file