Fix d3#403 - big chords.

radford · Dec 11, 2011 · 6477daa · 6477daa
1 parent 05d871b
commit 6477daa
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Showing 3 changed files with 9 additions and 9 deletions.
diff --git a/d3.js b/d3.js
@@ -3503,10 +3503,10 @@ d3.svg.chord = function() {
     var s = subgroup(this, source, d, i),
         t = subgroup(this, target, d, i);
     return "M" + s.p0
-      + arc(s.r, s.p1) + (equals(s, t)
+      + arc(s.r, s.p1, s.a1 - s.a0) + (equals(s, t)
       ? curve(s.r, s.p1, s.r, s.p0)
       : curve(s.r, s.p1, t.r, t.p0)
-      + arc(t.r, t.p1)
+      + arc(t.r, t.p1, t.a1 - t.a0)
       + curve(t.r, t.p1, s.r, s.p0))
       + "Z";
   }
@@ -3529,8 +3529,8 @@ d3.svg.chord = function() {
     return a.a0 == b.a0 && a.a1 == b.a1;
   }
 
-  function arc(r, p) {
-    return "A" + r + "," + r + " 0 0,1 " + p;
+  function arc(r, p, a) {
+    return "A" + r + "," + r + " 0 " + +(a > Math.PI) + ",1 " + p;
   }
 
   function curve(r0, p0, r1, p1) {