Fix cx and cy to be generated after params update

c3.js

@@ -433,9 +433,7 @@
         var duration, durationForExit, durationForAxis;
         var waitForDraw, flow;
         var targetsToShow = $$.filterTargetsToShow($$.data.targets), tickValues, i, intervalForCulling, xDomainForZoom;
-        var xv = $$.xv.bind($$),
+        var xv = $$.xv.bind($$), cx, cy;
-            cx = ($$.config.axis_rotated ? $$.generateCircleY() : $$.circleX).bind($$),
-            cy = ($$.config.axis_rotated ? $$.circleX : $$.generateCircleY()).bind($$);
 
         options = options || {};
         withY = getOption(options, "withY", true);
@@ -592,6 +590,10 @@
             if ($$.updateZoom) { $$.updateZoom(); }
         }
 
+        // generate circle x/y functions depending on updated params
+        cx = ($$.config.axis_rotated ? $$.generateCircleY() : $$.circleX).bind($$);
+        cy = ($$.config.axis_rotated ? $$.circleX : $$.generateCircleY()).bind($$);
+
         // transition should be derived from one transition
         d3.transition().duration(duration).each(function () {
             var transitions = [];

src/core.js

@@ -428,9 +428,7 @@ c3_chart_internal_fn.redraw = function (options, transitions) {
     var duration, durationForExit, durationForAxis;
     var waitForDraw, flow;
     var targetsToShow = $$.filterTargetsToShow($$.data.targets), tickValues, i, intervalForCulling, xDomainForZoom;
-    var xv = $$.xv.bind($$),
+    var xv = $$.xv.bind($$), cx, cy;
-        cx = ($$.config.axis_rotated ? $$.generateCircleY() : $$.circleX).bind($$),
-        cy = ($$.config.axis_rotated ? $$.circleX : $$.generateCircleY()).bind($$);
 
     options = options || {};
     withY = getOption(options, "withY", true);
@@ -587,6 +585,10 @@ c3_chart_internal_fn.redraw = function (options, transitions) {
         if ($$.updateZoom) { $$.updateZoom(); }
     }
 
+    // generate circle x/y functions depending on updated params
+    cx = ($$.config.axis_rotated ? $$.generateCircleY() : $$.circleX).bind($$);
+    cy = ($$.config.axis_rotated ? $$.circleX : $$.generateCircleY()).bind($$);
+
     // transition should be derived from one transition
     d3.transition().duration(duration).each(function () {
         var transitions = [];