核心代码如下
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public Bitmap picRotate(Bitmap bmp, int angle){ Bitmap reBmp = new Bitmap(bmp.Width, bmp.Height); Graphics g = Graphics.FromImage(reBmp); g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;//选择模式 g.TranslateTransform((float)bmp.Width / 2, (float)bmp.Height / 2); //参数为旋转中心 g.RotateTransform(angle);//设置旋转角度 g.TranslateTransform(-(float)bmp.Width / 2, -(float)bmp.Height / 2); g.DrawImage(bmp, new Point(0, 0)); return reBmp;//返回旋转后的图片}public void Transform(){ Bitmap bmp = new Bitmap(Resources.动效2); pictureBox1.BackgroundImage = bmp; Bitmap bmp1 = new Bitmap(Resources.动效4);//bmp即为我们的原型图片 pictureBox2.BackgroundImage = bmp1;//将图片作为picturebox背景，方便展示 this.BeginInvoke((EventHandler)(delegate { pictureBox2.Parent = pictureBox1;//在box1上显示Box2 })); int angle = 0; int angle1 = 360; while (true) { this.BeginInvoke((EventHandler)(delegate { pictureBox1.BackgroundImage = picRotate(bmp, angle);//将旋转后的图片设置为picturebox1背景 })); angle += 15;//每次增加5度 if (angle >= 360) { angle = 0; } this.BeginInvoke((EventHandler)(delegate { pictureBox2.BackgroundImage = picRotate(bmp1, angle1);//将旋转后的图片设置为picturebox2背景 })); angle1 -= 15;//每次减5度 if (angle1 <= 0) { angle1 = 360; } Thread.Sleep(50); }}/// <summary>/// 调用/// </summary>/// <param name="sender"></param>/// <param name="e"></param>private void button1_Click(object sender, EventArgs e){ Thread th = new Thread(Transform); th.IsBackground = true; th.Start();} |
实例源码下载地址：https://pan.baidu.com/s/1Wfzd3BgvgzgERMRqWhWQew 提取码：ivuv
效果如下