diff --git a/src/DatabaseServices/Entity.ts b/src/DatabaseServices/Entity.ts
index cde9c51ef..9433676f3 100644
--- a/src/DatabaseServices/Entity.ts
+++ b/src/DatabaseServices/Entity.ts
@@ -247,6 +247,7 @@ export class Circle extends Curve
         this.m_Radius = r;
         this.m_DrawEntity.forEach(obj =>
         {
+            (<THREE.Line>obj).geometry.dispose();
             let curve = new THREE.EllipseCurve(
                 this.m_Center.x, this.m_Center.y,            // ax, aY
                 this.m_Radius, this.m_Radius,           // xRadius, yRadius
@@ -254,7 +255,7 @@ export class Circle extends Curve
                 false,            // aClockwise
                 0                 // aRotation
             );
-            let geometry = new THREE.Geometry().setFromPoints(curve.getPoints(8));
+            let geometry = new THREE.Geometry().setFromPoints(curve.getPoints(60));
             (<THREE.Line>obj).geometry = geometry;
         })
     }
@@ -272,7 +273,7 @@ export class Circle extends Curve
             false,            // aClockwise
             0                 // aRotation
         );
-        let geometry = new THREE.Geometry().setFromPoints(curve.getPoints(8));
+        let geometry = new THREE.Geometry().setFromPoints(curve.getPoints(60));
         var material = new THREE.LineBasicMaterial({ color: 0xff0000 });
         var ellipse = new THREE.Line(geometry, material);
         this.m_DrawEntity.set(renderType, ellipse);
diff --git a/src/GraphicsSystem/PreViewer.ts b/src/GraphicsSystem/PreViewer.ts
index 3390e6b8a..a49ae224a 100644
--- a/src/GraphicsSystem/PreViewer.ts
+++ b/src/GraphicsSystem/PreViewer.ts
@@ -13,11 +13,19 @@ export class PreViewer
     //线材质
     private m_LineMaterial: THREE.LineBasicMaterial = new THREE.LineBasicMaterial({ color: 0xffffff });
     private m_SnapMaterial: THREE.LineBasicMaterial = new THREE.LineBasicMaterial({ color: 0x008B00 });
+
+    //点划线 黄色
     m_DashMaterial = new THREE.LineDashedMaterial({
-        color: 0x008B00,
-        dashSize: 30,
-        gapSize: 15,
+        color: 0xF0B41E,
+        dashSize: 20,
+        gapSize: 8,
     });
+    //点划线 绿色 极轴捕捉
+    m_BlueDashMaterial = new THREE.LineDashedMaterial({
+        color: 0x008B00,
+        dashSize: 5,
+        gapSize: 5
+    })
 
     //光标对象
     private m_CursorObject: THREE.Group;