Graphics平移缩放旋转(转载)+点睛

点睛：可以进行多次旋转和平移，也就是平移以后再平移，旋转以后再旋转，有时候一次达不到要求，如果你想一次调整完美的话很麻烦，所以最好多次，上代码

 private void btnTranslate_Click(object sender, EventArgs e)
        {
            Graphics graphics = this.CreateGraphics();
            // 红色笔
            Pen pen = new Pen(Color.Red, 5);
            Rectangle rect = new Rectangle(0, 0, 200, 50);
            // 用红色笔画矩形
            graphics.DrawRectangle(pen, rect);
            // 向左平移100向下平移50
            graphics.TranslateTransform(100, 50);
            // 蓝色笔
            pen.Color = Color.Blue;
            // 用蓝色笔重新画平移之后的矩形
            graphics.DrawRectangle(pen, rect);
            graphics.Dispose();
            pen.Dispose();

        }

        private void btnScale_Click(object sender, EventArgs e)
        {
            Graphics graphics = this.CreateGraphics();
            // 红色笔
            Pen pen = new Pen(Color.Red, 5);
            Rectangle rect = new Rectangle(0, 0, 200, 50);
            // 用红色笔画矩形
            graphics.DrawRectangle(pen, rect);
            graphics.ScaleTransform(0.5f, 2);
            // 蓝色笔
            pen.Color = Color.Blue;
            // 用蓝色笔重新画平移之后的矩形
            graphics.DrawRectangle(pen, rect);
            graphics.Dispose();
            pen.Dispose();

        }

        private void btnTranslate1_Click(object sender, EventArgs e)
        {
            Graphics graphics = this.CreateGraphics();
            // 红色笔
            Pen pen = new Pen(Color.Red, 5);
            Rectangle rect = new Rectangle(0, 0, 200, 50);
            // 用红色笔画矩形
            graphics.DrawRectangle(pen, rect);
            graphics.TranslateTransform(100 , 0);
            graphics.RotateTransform(60);
            // 蓝色笔
            pen.Color = Color.Blue;
            // 用蓝色笔重新画平移之后的矩形
            graphics.DrawRectangle(pen, rect);
            graphics.Dispose();
            pen.Dispose();

        }

上显示效果