Refactor #1305

c3.js

@@ -4784,7 +4784,12 @@
     c3_chart_internal_fn.updateAngle = function (d) {
         var $$ = this, config = $$.config,
             found = false, index = 0,
-            gMin = config.gauge_min, gMax = config.gauge_max, gTic, gValue;
+            gMin, gMax, gTic, gValue;
+
+        if (!config) {
+            return null;
+        }
+
         $$.pie($$.filterTargetsToShow($$.data.targets)).forEach(function (t) {
             if (! found && t.data.id === d.data.id) {
                 found = true;
@@ -4800,6 +4805,8 @@
             d.endAngle = d.startAngle;
         }
         if ($$.isGaugeType(d.data)) {
+            gMin = config.gauge_min;
+            gMax = config.gauge_max;
             gTic = (Math.PI) / (gMax - gMin);
             gValue = d.value < gMin ? 0 : d.value < gMax ? d.value - gMin : (gMax - gMin);
             d.startAngle = -1 * (Math.PI / 2);

src/arc.js

@@ -26,9 +26,13 @@ c3_chart_internal_fn.updateArc = function () {
 
 c3_chart_internal_fn.updateAngle = function (d) {
     var $$ = this, config = $$.config,
-        found = false, index = 0;
+        found = false, index = 0,
-    if (config) {  
+        gMin, gMax, gTic, gValue;
-        var gMin = config.gauge_min, gMax = config.gauge_max, gTic, gValue;
+
+    if (!config) {
+        return null;
+    }
+
     $$.pie($$.filterTargetsToShow($$.data.targets)).forEach(function (t) {
         if (! found && t.data.id === d.data.id) {
             found = true;
@@ -44,12 +48,13 @@ c3_chart_internal_fn.updateAngle = function (d) {
         d.endAngle = d.startAngle;
     }
     if ($$.isGaugeType(d.data)) {
+        gMin = config.gauge_min;
+        gMax = config.gauge_max;
         gTic = (Math.PI) / (gMax - gMin);
         gValue = d.value < gMin ? 0 : d.value < gMax ? d.value - gMin : (gMax - gMin);
         d.startAngle = -1 * (Math.PI / 2);
         d.endAngle = d.startAngle + gTic * gValue;
     }
-    }
     return found ? d : null;
 };