需要安裝nuget包【svg】
public class SVGHelper
{
/// <summary>
/// 保持svg為圖片
/// </summary>
/// <param name="path"></param>
/// <param name="imgPath"></param>
/// <returns></returns>
public static void SaveSVGImg(string path,string imgPath)
{
var svgContent = File.ReadAllText(path);
// 使用SvgDocument解析SVG內容
SvgDocument svgDocument = SvgDocument.FromSvg<SvgDocument>(svgContent);
// 將SvgDocument轉換為Drawing物件
System.Drawing.Bitmap bitmap = svgDocument.Draw();
bitmap.Save(imgPath);
}
/// <summary>
/// SVG轉Bitmat然後再轉為ImageSource
/// </summary>
/// <param name="path"></param>
/// <returns></returns>
public static ImageSource ConvertSvgToDrawingImage(string path)
{
var svgContent = File.ReadAllText(path);
// 使用SvgDocument解析SVG內容
SvgDocument svgDocument = SvgDocument.FromSvg<SvgDocument>(svgContent);
// 將SvgDocument轉換為Drawing物件
System.Drawing.Bitmap bitmap = svgDocument.Draw();
var imageSource = ToImageSource(bitmap);
return imageSource;
}
/// <summary>
/// Bitmap轉ImageSource
/// </summary>
/// <param name="hObject"></param>
/// <returns></returns>
[DllImport("gdi32.dll", SetLastError = true)]
private static extern bool DeleteObject(IntPtr hObject);
public static ImageSource ToImageSource( Bitmap bitmap)
{
IntPtr hBitmap = bitmap.GetHbitmap();
ImageSource wpfBitmap = Imaging.CreateBitmapSourceFromHBitmap(hBitmap, IntPtr.Zero, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());
// 記得要進行記憶體釋放。否則會有記憶體不足的報錯。
if (!DeleteObject(hBitmap))
{
throw new Win32Exception();
}
return wpfBitmap;
}
}