Merge pull request #11841 from susiwen8/#11832

Fix Radar chart axis extent

src/coord/radar/Radar.js

@@ -231,7 +231,7 @@ Radar.prototype.update = function (ecModel, api) {
                 interval = increaseInterval(interval);
             }
             // PENDING
-            var center = Math.round((rawExtent[0] + rawExtent[1]) / 2 / interval) * interval;
+            var center = Math.ceil((rawExtent[0] + rawExtent[1]) / 2 / interval) * interval;
             var halfSplitNumber = Math.round(splitNumber / 2);
             scale.setExtent(
                 numberUtil.round(center - halfSplitNumber * interval),