我正在研究如何在未来的项目中使用SkiaSharp,下面是GitHub上现有的文档:
https://developer.xamarin.com/guides/cross-platform/drawing/introduction/
我正在Windows 7上开发Visual 2013,我尝试使用Xamarin项目类型,但它需要DllImportAttribute在SkiaSharp包中的商业许可证。
我想知道是否有可能选择一个C# Visual项目,该项目将如何显示SkiaSharp画布,如果是的话,我将如何做到?
发布于 2016-11-11 10:37:17
该评论上的链接目前已中断。由于文件夹“示例”将来可能会再次更改路径,所以无论谁需要,都可以从https://github.com/mono/SkiaSharp页面开始探索。
有关使用SkiaSharp的更多信息,请参见API文档联机和本文中有关使用尖尖的绘图的信息。
对于谁需要一个实用的、快速的、如何在这里使用它的例子:
获得一个SKCanvas
using (var surface = SKSurface.Create (width: 640, height: 480, SKColorType.N_32, SKAlphaType.Premul)) {
SKCanvas myCanvas = surface.Canvas;
// Your drawing code goes here.
}绘图文本
// clear the canvas / fill with white
canvas.DrawColor (SKColors.White);
// set up drawing tools
using (var paint = new SKPaint ()) {
paint.TextSize = 64.0f;
paint.IsAntialias = true;
paint.Color = new SKColor (0x42, 0x81, 0xA4);
paint.IsStroke = false;
// draw the text
canvas.DrawText ("Skia", 0.0f, 64.0f, paint);
}绘制位图
Stream fileStream = File.OpenRead ("MyImage.png");
// clear the canvas / fill with white
canvas.DrawColor (SKColors.White);
// decode the bitmap from the stream
using (var stream = new SKManagedStream(fileStream))
using (var bitmap = SKBitmap.Decode(stream))
using (var paint = new SKPaint()) {
canvas.DrawBitmap(bitmap, SKRect.Create(Width, Height), paint);
}基于图像滤波器的绘图
Stream fileStream = File.OpenRead ("MyImage.png"); // open a stream to an image file
// clear the canvas / fill with white
canvas.DrawColor (SKColors.White);
// decode the bitmap from the stream
using (var stream = new SKManagedStream(fileStream))
using (var bitmap = SKBitmap.Decode(stream))
using (var paint = new SKPaint()) {
// create the image filter
using (var filter = SKImageFilter.CreateBlur(5, 5)) {
paint.ImageFilter = filter;
// draw the bitmap through the filter
canvas.DrawBitmap(bitmap, SKRect.Create(width, height), paint);
}
}https://stackoverflow.com/questions/35719258
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