如何从文件加载图像并将其绘制在 WPF Skiasharp 画布上？

编程问答 2022-05-29

问题描述

SkiaSharp WPF

enter image description here

我想在我的 SkiaSharp 画布上的某个位置显示 Compass.png 图像。我已经在画布上绘制线条和圆圈，我不需要帮助。

private void MyCanvas_PaintSurface(object sender,SKPaintSurfaceEventArgs e)
{
  var surface = e.Surface;
  var canvas = surface.Canvas;
    
  canvas.Clear(SKColors.Black);
    
  // ... working drawing code drawing lines/circles already here
    
  // ** Need to add code here to load the compass image from the file and display it on the canvas at say (0,0)?
}

注意：WPF。

解决方法

解决了...

var image = SKImage.FromEncodedData(@"Images\Compass.png");
var bm = SKBitmap.FromImage(image);

canvas.DrawBitmap(bm,new SKPoint(0,0));

显然，最好只设置一次 bm 并重复使用它。

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