Bugfix: Avoid getting stuck when the first datapoint has a NaN value

[dygraphs.git] / dygraph.js

diff --git a/dygraph.js b/dygraph.js
index bc830b2..c94536b 100644 (file)
--- a/dygraph.js
+++ b/dygraph.js
@@ -1552,7 +1552,8 @@ Dygraph.prototype.findClosestPoint = function(domX, domY) {
       dy = point.canvasy - domY;
       dist = dx * dx + dy * dy;
       if (minDist === null || dist < minDist) {
-        minDist = dist;
+       if (!isNaN(dist))
+          minDist = dist;
         closestPoint = point;
         closestSeries = setIdx;
         idx = i;