using(SKBitmap bitmap =newSKBitmap(imageInfo)) { bitmap.InstallPixels(imageInfo, buffer, stride); using(SKCanvas canvas =newSKCanvas(bitmap)) { // 绘制文本或其他图形元素 using(SKPaint paint =newSKPaint()) { paint.TextSize = (float)fontSize; paint.IsAntialias =true; // 使用 WPF 的 ...
SKBitmap bitmap = new SKBitmap((int)canvasView.Width, (int)canvasView.Height); SKCanvas canvas = new SKCanvas(bitmap); // create an image COPY //SKImage image = SKImage.FromBitmap(bitmap); // OR // create an image WRAPPER SKImage image = SKImage.FromPixels(bitmap.PeekPixels()); ...
DrawBitmap(SKBitmap, SKRect, SKPaint) Draws a bitmap on the canvas. C# publicvoidDrawBitmap(SkiaSharp.SKBitmap bitmap, SkiaSharp.SKRect dest, SkiaSharp.SKPaint paint =default); Parameters bitmap SKBitmap The bitmap to draw. dest SKRect ...
stringfilePath ="path/to/image.png";// 图像文件的路径// 使用SKBitmap加载原始图像SKBitmap originalBitmap = SKBitmap.Decode(filePath); 计算缩放后的目标尺寸: inttargetHeight =600;// 目标高度// 计算缩放后的目标宽度,保持纵横比floataspectRatio = (float)originalBitmap.Height / originalBitmap.Wid...
canvas.DrawBitmap(original, sourceRect, destRect); using var img = SKImage.FromBitmap(bitmap); using SKData p = img.Encode(SKEncodedImageFormat.Png, 100); return p.ToArray(); } /// <summary> /// 获取图像数字验证码 /// </summary> ...
publicSKCanvas(SkiaSharp.SKBitmap bitmap); Parameters bitmap SKBitmap The bitmap for the canvas to draw into. Remarks The structure of the bitmap is copied into the canvas. Applies to ProductVersions SkiaSharp1.60.x, 1.68.x, 2.80.x, 2.88.x ...
A canvas encapsulates all of the state about drawing into a device (bitmap or surface). This includes a reference to the device itself, and a stack of matrix/clip values. For any given draw call (e.g. DrawRect), the geometry of the object being drawn is transformed by the concatenation...
canvas.DrawBitmap(original, sourceRect, destRect); usingvarimg = SKImage.FromBitmap(bitmap); usingSKData p = img.Encode(SKEncodedImageFormat.Png,100); returnp.ToArray; } ///<summary> ///获取图像数字验证码 ///</summary> ///<param name="text">验证码内容,如4为数字</param> ...
编辑您的构建设置以定位32-bit或64-bit(不是any CPU) 安装SkiaSharpNuGet 包 1.创建SKSurface和Canvas varimageInfo=newSKImageInfo(width:pictureBox1.Width,height:pictureBox1.Height,colorType:SKColorType.Rgba8888,alphaType:SKAlphaType.Premul);varsurface=SKSurface.Create(imageInfo);varcanvas=surface.Canva...
Next(bitmap.Width), random.Next(bitmap.Height)) ).ToArray(); canvas.DrawPoints( SKPointMode.Points, points, pen); //绘制贝塞尔线条 for (int i = 0; i < 2; i++) { var p1 = new SKPoint(0, 0); var p2 = new SKPoint(0, 0); var p3 = new SKPoint(0, 0); var p4 = ...