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

@@ -26,29 +26,34 @@ c3_chart_internal_fn.updateArc = function () {
 
 c3_chart_internal_fn.updateAngle = function (d) {
     var $$ = this, config = $$.config,
-        found = false, index = 0;
-    if (config) {  
-        var gMin = config.gauge_min, gMax = config.gauge_max, gTic, gValue;
-        $$.pie($$.filterTargetsToShow($$.data.targets)).forEach(function (t) {
-            if (! found && t.data.id === d.data.id) {
-                found = true;
-                d = t;
-                d.index = index;
-            }
-            index++;
-        });
-        if (isNaN(d.startAngle)) {
-            d.startAngle = 0;
-        }
-        if (isNaN(d.endAngle)) {
-            d.endAngle = d.startAngle;
-        }
-        if ($$.isGaugeType(d.data)) {
-            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;
+        found = false, index = 0,
+        gMin, gMax, gTic, gValue;
+
+    if (!config) {
+        return null;
+    }
+
+    $$.pie($$.filterTargetsToShow($$.data.targets)).forEach(function (t) {
+        if (! found && t.data.id === d.data.id) {
+            found = true;
+            d = t;
+            d.index = index;
         }
+        index++;
+    });
+    if (isNaN(d.startAngle)) {
+        d.startAngle = 0;
+    }
+    if (isNaN(d.endAngle)) {
+        d.endAngle = d.startAngle;
+    }
+    if ($$.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;
 };