图片切割和旋转

Question

图片的切割和旋转怎样实现到一起

Answer 1

/// <summary>
            /// 图像切割
            /// </summary>
            /// <param name="url">图像文件名称</param>
            /// <param name="width">切割后图像宽度</param>
            /// <param name="height">切割后图像高度</param>
            /// <param name="savePath">切割后图像文件保存路径</param>
            /// <param name="fileExt">切割后图像文件扩展名</param>
            public static void Cut(string url, int width, int height, string savePath, string fileExt, string logofile)
            {
                Bitmap bitmap = new Bitmap(url);
                Decimal MaxRow = Math.Ceiling((Decimal)bitmap.Height / height);
                Decimal MaxColumn = Math.Ceiling((decimal)bitmap.Width / width);
                for (decimal i = 0; i < MaxRow; i++)
                {
                    for (decimal j = 0; j < MaxColumn; j++)
                    {
                        string filename = i.ToString() + "," + j.ToString() + "." + fileExt;
                        Bitmap bmp = new Bitmap(width, height);                        for (int offsetX = 0; offsetX < width; offsetX++)
                        {
                            for (int offsetY = 0; offsetY < height; offsetY++)
                            {
                                if (((j * width + offsetX) < bitmap.Width) && ((i * height + offsetY) < bitmap.Height))
                                {
                                    bmp.SetPixel(offsetX, offsetY, bitmap.GetPixel((int)(j * width + offsetX), (int)(i * height + offsetY)));
                                }
                            }
                        }
                        Graphics g = Graphics.FromImage(bmp);
                        g.DrawString("ss", new Font("黑体", 20), new SolidBrush(Color.FromArgb(70, Color.WhiteSmoke)), 60, height / 2);//加水印
                        ImageFormat format = ImageFormat.Png;
                        switch (fileExt.ToLower())
                        {
                            case "png":
                                format = ImageFormat.Png;
                                break;
                            case "bmp":
                                format = ImageFormat.Bmp;
                                break;
                            case "gif":
                                format = ImageFormat.Gif;
                                break;                        }
                        bmp.Save(savePath + "\\" + filename, format);
                    }
                }            }/// <summary>        
        /// 自动旋转       
        /// /// </summary>       
        /// /// <param name="bmp">Bitmap 对象</param>    
        /// /// <param name="picBox">PictureBox 对象</param>     
        public static void XuanZhuan(Bitmap MyBitmap, PictureBox picBox)
        {
            Graphics g = picBox.CreateGraphics();
            float MyAngle = 0;//旋转的角度        
            while (MyAngle < 360)
            {
                TextureBrush MyBrush = new TextureBrush(MyBitmap);
                picBox.Refresh();
                MyBrush.RotateTransform(MyAngle);
                g.FillRectangle(MyBrush, 0, 0, MyBitmap.Width, MyBitmap.Height);
                MyAngle += 0.5f;                System.Threading.Thread.Sleep(50);
            }
        }