diff --git a/app/src/main/java/com/casic/detector/widgets/RadarScanView.kt b/app/src/main/java/com/casic/detector/widgets/RadarScanView.kt
index 29be976..d72efdc 100644
--- a/app/src/main/java/com/casic/detector/widgets/RadarScanView.kt
+++ b/app/src/main/java/com/casic/detector/widgets/RadarScanView.kt
@@ -70,6 +70,7 @@
     private lateinit var borderPaint: Paint
     private lateinit var shaderPaint: Paint
     private lateinit var dataPaint: Paint
+    private lateinit var targetPaint: Paint
     private lateinit var outerPaint: TextPaint
     private lateinit var outerTextPath: Path
 
@@ -172,6 +173,12 @@
         dataPaint.isAntiAlias = true
         dataPaint.style = Paint.Style.FILL
 
+        //最近点画笔
+        targetPaint = Paint()
+        targetPaint.color = Color.GREEN
+        targetPaint.isAntiAlias = true
+        targetPaint.style = Paint.Style.FILL
+
         //矩阵
         matrix = Matrix()
     }
@@ -331,9 +338,9 @@
             canvas.drawCircle(it.x, it.y, 10f, dataPaint)
         }
 
-        //画最近的点最外层圆环
+        //画最近的点
         targetPoint?.apply {
-            canvas.drawCircle(x, y, 12f, borderPaint)
+            canvas.drawCircle(x, y, 10f, targetPaint)
         }
 
         /**