diff --git a/packages/render/src/core/graphics.ts b/packages/render/src/core/graphics.ts
index eebc2f6..7606151 100644
--- a/packages/render/src/core/graphics.ts
+++ b/packages/render/src/core/graphics.ts
@@ -16,7 +16,8 @@ import {
     CircleParams,
     EllipseParams,
     RectRCircleParams,
-    RectREllipseParams
+    RectREllipseParams,
+    IGraphicRectR
 } from './types';
 
 const enum GraphicModeProp {
@@ -413,14 +414,14 @@ export class Ellipse extends GraphicItemBase implements IGraphicEllipse {
     }
 
     /**
-     * 设置椭圆的横纵轴长度
-     * @param x 横轴长度
-     * @param y 纵轴长度
+     * 设置椭圆的横纵轴半径
+     * @param x 横轴半径
+     * @param y 纵轴半径
      */
     setRadius(x: number, y: number) {
         this.radiusX = x;
         this.radiusY = y;
-        this.size(x, y);
+        this.size(x * 2, y * 2);
         this.pathDirty = true;
         this.update();
     }
@@ -720,18 +721,6 @@ export class QuadraticCurve
         return path;
     }
 
-    protected render(
-        canvas: MotaOffscreenCanvas2D,
-        _transform: Transform
-    ): void {
-        const ctx = canvas.ctx;
-        this.setCanvasState(canvas);
-        ctx.beginPath();
-        ctx.moveTo(this.sx, this.sy);
-        ctx.quadraticCurveTo(this.cpx, this.cpy, this.ex, this.ey);
-        ctx.stroke();
-    }
-
     /**
      * 设置起始点坐标
      */
@@ -862,7 +851,7 @@ export class Path extends GraphicItemBase implements IGraphicPath {
     }
 }
 
-export class RectR extends GraphicItemBase {
+export class RectR extends GraphicItemBase implements IGraphicRectR {
     /** 圆角属性，四元素数组，每个元素是一个二元素数组，表示这个角的半径，顺序为 左上，右上，右下，左下 */
     readonly corner: [radiusX: number, radiusY: number][] = [
         [0, 0],
diff --git a/packages/render/src/core/types.ts b/packages/render/src/core/types.ts
index 31d9120..5ecc49d 100644
--- a/packages/render/src/core/types.ts
+++ b/packages/render/src/core/types.ts
@@ -915,6 +915,30 @@ export interface IGraphicPath extends IGraphicRenderItem {
     addPath(path: Path2D): void;
 }
 
+export interface IGraphicRectR extends IGraphicRenderItem {
+    /** 圆角属性，四元素数组，每个元素是一个二元素数组，表示这个角的半径，顺序为 左上，右上，右下，左下 */
+    readonly corner: [radiusX: number, radiusY: number][];
+
+    /**
+     * 设置圆角半径
+     * @param x 横向半径
+     * @param y 纵向半径
+     */
+    setRadius(x: number, y: number, corner: RectRCorner): void;
+
+    /**
+     * 设置圆形圆角参数
+     * @param circle 圆形圆角参数
+     */
+    setCircle(circle: RectRCircleParams): void;
+
+    /**
+     * 设置椭圆圆角参数
+     * @param ellipse 椭圆圆角参数
+     */
+    setEllipse(ellipse: RectREllipseParams): void;
+}
+
 export const enum RectRCorner {
     TopLeft,
     TopRight,