fix(radar): fix radar symbol border is scaled
diff --git a/src/chart/radar/RadarView.ts b/src/chart/radar/RadarView.ts
index c4e28d0..70e3d43 100644
--- a/src/chart/radar/RadarView.ts
+++ b/src/chart/radar/RadarView.ts
@@ -238,6 +238,7 @@
                 else {
                     symbolPath.useStyle(itemStyle);
                     symbolPath.setColor(color);
+                    symbolPath.style.strokeNoScale = true;
                 }
 
                 const pathEmphasisState = symbolPath.ensureState('emphasis');
diff --git a/test/radar.html b/test/radar.html
index ffb8ae6..64e4e31 100644
--- a/test/radar.html
+++ b/test/radar.html
@@ -76,6 +76,10 @@
                                 show: true
                             }
                         },
+                        itemStyle: {
+                            borderWidth: 3,
+                            borderColor: '#fff'
+                        },
                         // areaStyle: {normal: {}},
                         data : [
                             {