C# Drawing.Bitmap类代码示例

 public Terrain(Device device, String texture, int pitch, Renderer renderer)
 {
     HeightMap = new System.Drawing.Bitmap(@"Data/Textures/"+texture);
     WaterShader = new WaterShader(device);
     TerrainShader = new TerrainShader(device);
     _width = HeightMap.Width-1;
     _height = HeightMap.Height-1;
     _pitch = pitch;
     _terrainTextures = new ShaderResourceView[4];
     _terrainTextures[0] = new Texture(device, "Sand.png").TextureResource;
     _terrainTextures[1] = new Texture(device, "Grass.png").TextureResource;
     _terrainTextures[2] = new Texture(device, "Ground.png").TextureResource;
     _terrainTextures[3] = new Texture(device, "Rock.png").TextureResource;
     _reflectionClippingPlane = new Vector4(0.0f, 1.0f, 0.0f, 0.0f);
     _refractionClippingPlane = new Vector4(0.0f, -1.0f, 0.0f, 0.0f);
     _noClippingPlane = new Vector4(0.0f, 1.0f, 0.0f, 10000);
     _reflectionTexture = new RenderTexture(device, renderer.ScreenSize);
     _refractionTexture = new RenderTexture(device, renderer.ScreenSize);
     _renderer = renderer;
     _bitmap = new Bitmap(device,_refractionTexture.ShaderResourceView,renderer.ScreenSize, new Vector2I(100, 100), 0);
     _bitmap.Position = new Vector2I(renderer.ScreenSize.X - 100, 0);
     _bitmap2 = new Bitmap(device, _reflectionTexture.ShaderResourceView, renderer.ScreenSize, new Vector2I(100, 100), 0);
     _bitmap2.Position = new Vector2I(renderer.ScreenSize.X - 100, 120);
     _bumpMap = _renderer.TextureManager.Create("OceanWater.png");
     _skydome = new ObjModel(device, "skydome.obj", renderer.TextureManager.Create("Sky.png"));
     BuildBuffers(device);
     WaveTranslation = new Vector2(0,0);
 }

 public Wolf()
 {
     name = "Wolf";
     family = "Carnivore";
     food = "Rabbits";
     image = new System.Drawing.Bitmap("wolf.jpg");
 }

        public static void Run()
        {
            // ExStart:ExtractAllImagesFromPage
            // The path to the documents directory.
            string dataDir = RunExamples.GetDataDir_Shapes();

            // Call a Diagram class constructor to load a VSD diagram
            Diagram diagram = new Diagram(dataDir + "ExtractAllImagesFromPage.vsd");

            // Enter page index i.e. 0 for first one
            foreach (Shape shape in diagram.Pages[0].Shapes)
            {
                // Filter shapes by type Foreign
                if (shape.Type == Aspose.Diagram.TypeValue.Foreign)
                {
                    using (System.IO.MemoryStream stream = new System.IO.MemoryStream(shape.ForeignData.Value))
                    {
                        // Load memory stream into bitmap object
                        System.Drawing.Bitmap bitmap = new System.Drawing.Bitmap(stream);

                        // Save bmp here
                        bitmap.Save(dataDir + "ExtractAllImages" + shape.ID + "_out.bmp");
                    }
                }
            }
            // ExEnd:ExtractAllImagesFromPage
        }

        /// <summary>
        /// 初始化
        /// </summary>
        public void Intitial( FontMgr.FontLoadInfo fontLoadInfo )
        {
            try
            {
                privateFontCollection = new PrivateFontCollection();

                foreach (FontMgr.FontInfo info in fontLoadInfo.UnitCodeFontInfos)
                {
                    privateFontCollection.AddFontFile( info.path );
                }

                fontFamilys = privateFontCollection.Families;

                if (fontFamilys.Length != fontLoadInfo.UnitCodeFontInfos.Count)
                    throw new Exception( "导入的各个字体必须属于不同类别" );

                for (int i = 0; i < fontFamilys.Length; i++)
                {
                    fonts.Add( fontLoadInfo.UnitCodeFontInfos[i].name, new System.Drawing.Font( fontFamilys[i], fontLoadInfo.DefualtEmSize ) );
                }

                System.Drawing.Bitmap tempBitMap = new System.Drawing.Bitmap( 1, 1 );
                mesureGraphics = System.Drawing.Graphics.FromImage( tempBitMap );
            }
            catch (Exception)
            {
                throw new Exception( "读取字体文件出错" );
            }

        }

        private static void ScaleByFixedHeight(String fileName, int newHeight, String outputFile)
        {
            System.Drawing.Bitmap resizedImage = null;

            try
            {
                using (System.Drawing.Image originalImage = System.Drawing.Image.FromFile(fileName))
                {
                    double resizeRatio = (double)newHeight / originalImage.Size.Height;
                    int newWidth = (int)(originalImage.Size.Width * resizeRatio);

                    System.Drawing.Size newSize = new System.Drawing.Size(newWidth, newHeight);

                    resizedImage = new System.Drawing.Bitmap(originalImage, newSize);
                }

                // Save resized picture.
                CheckAndCreatePath(outputFile);
                resizedImage.Save(outputFile, System.Drawing.Imaging.ImageFormat.Jpeg);
            }
            finally
            {
                if (resizedImage != null)
                {
                    resizedImage.Dispose();
                }
            }
        }

        public BatchClassificationDialog(ref Klu klu, ref TrainingDataSet dataSet, ProcessOptions processOptions)
        {
            InitializeComponent();

            _BackgroundWorker = new BackgroundWorker();
            _BackgroundWorker.WorkerReportsProgress = true;
            _BackgroundWorker.WorkerSupportsCancellation = true;
            _BackgroundWorker.DoWork += new DoWorkEventHandler(DoWork);
            _BackgroundWorker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(RunWorkerCompleted);
            _BackgroundWorker.ProgressChanged += new ProgressChangedEventHandler(ProgressChanged);        

            BrowseButton.IsEnabled = true;
            CancelButton.IsEnabled = false;
            ClassifyButton.IsEnabled = false;

            _DataSet = dataSet;
            _SelectedFiles = new ArrayList();
            _ProcessOptions = processOptions;
            // We want the images to be as less distorded as possible, so we disable all the overlays.

            _ProcessOptions.DrawAnthropometricPoints = 0;
            _ProcessOptions.DrawDetectionTime = 0;
            _ProcessOptions.DrawFaceRectangle = 0;
            _ProcessOptions.DrawSearchRectangles = 0;
            _ProcessOptions.DrawFeaturePoints = 0;
            
            _KLU = klu;
            _FFP = new FaceFeaturePoints();
            _TempBitmap = new System.Drawing.Bitmap(10, 10);

            ExpressionsComboBox.ItemsSource = _DataSet.Expression;
            ClassifyButton.Content = "Classify";
        }

 public static string reveal(string path)
 {
     string result = "";
     System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(path);
     // FIXME
     return result;
 }

        static void MakeImagesNegative(string sourceDirectoryPath, string targetDirectoryPath)
        {
            string[] filenames = System.IO.Directory.GetFiles(sourceDirectoryPath);

            foreach (var filename in filenames)
            {
                System.Drawing.Bitmap bitmap = new System.Drawing.Bitmap(filename);
                Parallel.For(0, bitmap.Height, (bitmapRowIndex) =>
                {
                    lock (bitmap)
                    {
                        for (int bitmapColIndex = 0; bitmapColIndex < bitmap.Width; bitmapColIndex++)
                        {

                            var pixel = bitmap.GetPixel(bitmapColIndex, bitmapRowIndex);
                            var negativePixel = System.Drawing.Color.FromArgb(
                                byte.MaxValue - pixel.A,
                                byte.MaxValue - pixel.R,
                                byte.MaxValue - pixel.G,
                                byte.MaxValue - pixel.B);

                            bitmap.SetPixel(bitmapColIndex, bitmapRowIndex, negativePixel);
                        }
                    }
                });

                bitmap.Save(filename.Replace(sourceDirectoryPath, targetDirectoryPath));
            }
        }

        public static byte[] CreateAvatar(int sideLength, System.IO.Stream fromStream)
        {
            System.IO.MemoryStream ms = new System.IO.MemoryStream();

            using (var image = System.Drawing.Image.FromStream(fromStream))
            using (var thumbBitmap = new System.Drawing.Bitmap(sideLength, sideLength))
            {

                var a = Math.Min(image.Width, image.Height);

                var x = (image.Width - a) / 2;

                var y = (image.Height - a) / 2;

                using (var thumbGraph = System.Drawing.Graphics.FromImage(thumbBitmap))
                {

                    thumbGraph.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;

                    thumbGraph.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;

                    thumbGraph.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;

                    var imgRectangle = new System.Drawing.Rectangle(0, 0, sideLength, sideLength);

                    thumbGraph.DrawImage(image, imgRectangle, x, y, a, a, System.Drawing.GraphicsUnit.Pixel);

                    thumbBitmap.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);

                }

            }
            return (ms.ToArray());
        }

 // Constructor
 public ThumbnailEventArgs(System.Drawing.Bitmap bmp, string filename,int count, int totalcount)
 {
     this.bmp = bmp;
     this.filename = filename;
     this.count = count;
     this.totalCount = totalcount;
 }

        public static System.Drawing.Bitmap create_hue_bitmap(int width, int height)
        {
            var bitmap = new System.Drawing.Bitmap(width, height);

            using (var gfx = System.Drawing.Graphics.FromImage(bitmap))
            {
                var colorblend = new System.Drawing.Drawing2D.ColorBlend();
                const int num_steps = 34;
                var range_steps = EnumerableUtil.RangeSteps(0.0, 1.0, num_steps);

                colorblend.Colors = new System.Drawing.Color[num_steps];
                colorblend.Positions = new float[num_steps];

                double _sat = 1.0;
                double _val = 1.0;

                var colors = range_steps.Select(x => VisioAutomation.UI.ColorUtil.HSVToSystemDrawingColor(x, _sat, _val));
                var positions = range_steps.Select(x => (float) x);

                EnumerableUtil.FillArray( colorblend.Colors, colors );
                EnumerableUtil.FillArray(colorblend.Positions, positions);

                using (var brush_rainbow = new System.Drawing.Drawing2D.LinearGradientBrush(
                    new System.Drawing.Point(0, 0),
                    new System.Drawing.Point(bitmap.Width, 0),
                    System.Drawing.Color.Black,
                    System.Drawing.Color.White))
                {
                    brush_rainbow.InterpolationColors = colorblend;
                    gfx.FillRectangle(brush_rainbow, 0, 0, bitmap.Width, bitmap.Height);
                }
            }
            return bitmap;
        }

 public Koala()
 {
     name = "Koala";
     family = "Herbavore";
     food = "Leaves";
     image = new System.Drawing.Bitmap("koala.jpg");
 }

        /// <summary>
        /// Initializes a new instance of the <see cref="ThumbnailCreator"/> class.
        /// </summary>
        /// <param name="tnSettings">The <see cref="ThumbnailSettings"/> to use.</param>
        /// <param name="worker">The <see cref="System.ComponentModel.BackgroundWorker"/>worker to use.
        /// </param>
        public ThumbnailCreator(ThumbnailSettings tnSettings, System.ComponentModel.BackgroundWorker worker)
        {
            this._tnSettings = tnSettings;
            this._worker = worker;

            #if false
            _imageCodec = GetEncoder (System.Drawing.Imaging.ImageFormat.Png);
            _qualityParameter = new System.Drawing.Imaging.EncoderParameter (
                    System.Drawing.Imaging.Encoder.Quality, 75L);
            _qualityParameters = new System.Drawing.Imaging.EncoderParameters (1);
            _qualityParameters.Param[0] = _qualityParameter;
            #else
            _imageCodec = GetEncoder (System.Drawing.Imaging.ImageFormat.Jpeg);
            _qualityParameter = new System.Drawing.Imaging.EncoderParameter (
                    System.Drawing.Imaging.Encoder.Quality, 75L);
            _qualityParameters = new System.Drawing.Imaging.EncoderParameters (1);
            _qualityParameters.Param[0] = _qualityParameter;
            #endif

            #if false
            using (System.Drawing.Bitmap bitmap1 = new System.Drawing.Bitmap (1, 1))
                {
                System.Drawing.Imaging.EncoderParameters paramList =
                        bitmap1.GetEncoderParameterList (_imageCodec.Clsid);
                System.Drawing.Imaging.EncoderParameter[] encParams = paramList.Param;
                foreach (System.Drawing.Imaging.EncoderParameter p in encParams)
                    {
                    THelper.Information ("Type {0}, GUID {1}", p.ValueType, p.Encoder.Guid);
                    }

                paramList.Dispose ();
                }
            #endif
        }

 public ActionDefinition(ActionLibrary parent, string name, int id)
 {
     Library = parent;
     GameMakerVersion = 520;
     Name = name;
     ActionID = id;
     System.IO.MemoryStream ms = new System.IO.MemoryStream();
     Properties.Resources.DefaultAction.Save(ms, System.Drawing.Imaging.ImageFormat.Bmp);
     OriginalImage = ms.ToArray();
     ms.Close();
     Image = new System.Drawing.Bitmap(24, 24, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
     System.Drawing.Graphics.FromImage(Image).DrawImage(Properties.Resources.DefaultAction, new System.Drawing.Rectangle(0, 0, 24, 24), new System.Drawing.Rectangle(0, 0, 24, 24), System.Drawing.GraphicsUnit.Pixel);
     (Image as System.Drawing.Bitmap).MakeTransparent(Properties.Resources.DefaultAction.GetPixel(0, Properties.Resources.DefaultAction.Height - 1));
     Hidden = false;
     Advanced = false;
     RegisteredOnly = false;
     Description = string.Empty;
     ListText = string.Empty;
     HintText = string.Empty;
     Kind = ActionKind.Normal;
     InterfaceKind = ActionInferfaceKind.Normal;
     IsQuestion = false;
     ShowApplyTo = true;
     ShowRelative = true;
     ArgumentCount = 0;
     Arguments = new ActionArgument[8];
     for (int i = 0; i < 8; i++) Arguments[i] = new ActionArgument();
     ExecutionType = ActionExecutionType.None;
     FunctionName = string.Empty;
     Code = string.Empty;
 }

        public TextureData(string src)
        {
            try
            {
                System.Drawing.Bitmap texture = new System.Drawing.Bitmap(src);

                width = texture.Width;
                height = texture.Height;

                Clear();

                for (int x = 0; x < width; x++)
                    for (int y = 0; y < height; y++)
                    {
                        Color xnaColor = new Color();
                        System.Drawing.Color formsColor = texture.GetPixel(x, y);

                        xnaColor.R = formsColor.R;
                        xnaColor.G = formsColor.G;
                        xnaColor.B = formsColor.B;
                        xnaColor.A = formsColor.A;

                        data[y * width + x] = xnaColor.PackedValue;
                    }
            }
            catch(Exception e)
            {
                Console.WriteLine("Failed to load file: " + e.Message);
                Clear();
            }
        }