X-Git-Url: https://adrianiainlam.tk/git/?a=blobdiff_plain;f=src%2Fextras%2Fsmooth-plotter.js;fp=src%2Fextras%2Fsmooth-plotter.js;h=69685ec89f3fb6ff11c57338670d0b2917c3cd5d;hb=2b66af4f76dcd72d22f5844cb7684f3cb79fde42;hp=d0182f49756087e0c0da1701928eaf8604c43f56;hpb=178b1e0a5023bd55b8636242623e7eb82ac12d5d;p=dygraphs.git

diff --git a/src/extras/smooth-plotter.js b/src/extras/smooth-plotter.js
index d0182f4..69685ec 100644
--- a/src/extras/smooth-plotter.js
+++ b/src/extras/smooth-plotter.js
@@ -75,6 +75,10 @@ function getControlPoints(p0, p1, p2, opt_alpha, opt_allowFalseExtrema) {
   return [l1x, l1y, r1x, r1y];
 }
 
+// i.e. is none of (null, undefined, NaN)
+function isOK(x) {
+  return !!x && !isNaN(x);
+};
 
 // A plotter which uses splines to create a smooth curve.
 // See tests/plotters.html for a demo.
@@ -88,7 +92,6 @@ function smoothPlotter(e) {
 
   // right control point for previous point
   var lastRightX = points[0].canvasx, lastRightY = points[0].canvasy;
-  var isOK = Dygraph.isOK;  // i.e. is none of (null, undefined, NaN)
 
   for (var i = 1; i < points.length; i++) {
     var p0 = points[i - 1],