在C#中将SVG图像从URL转换为PNG,可以使用以下步骤:
using System;
using System.Net.Http;
using System.IO;
class Program
{
static async void Main(string[] args)
{
string svgUrl = "https://example.com/image.svg";
string svgData = await DownloadSvgData(svgUrl);
// 进行SVG图像转换为PNG的操作
// ...
}
static async Task<string> DownloadSvgData(string url)
{
using (HttpClient client = new HttpClient())
{
HttpResponseMessage response = await client.GetAsync(url);
response.EnsureSuccessStatusCode();
return await response.Content.ReadAsStringAsync();
}
}
}
using System;
using System.Net.Http;
using System.IO;
using SkiaSharp;
using SkiaSharp.Extended.Svg;
class Program
{
static async void Main(string[] args)
{
string svgUrl = "https://example.com/image.svg";
string svgData = await DownloadSvgData(svgUrl);
// 将SVG图像转换为SKBitmap对象
SKSvg svg = new SKSvg();
svg.Load(new MemoryStream(Encoding.UTF8.GetBytes(svgData)));
SKBitmap bitmap = new SKBitmap((int)svg.CanvasSize.Width, (int)svg.CanvasSize.Height);
using (SKCanvas canvas = new SKCanvas(bitmap))
{
canvas.Clear(SKColors.Transparent);
canvas.DrawPicture(svg.Picture);
}
// 将SKBitmap对象保存为PNG图像文件
using (FileStream stream = new FileStream("image.png", FileMode.Create))
{
bitmap.Encode(stream, SKEncodedImageFormat.Png, 100);
}
}
static async Task<string> DownloadSvgData(string url)
{
using (HttpClient client = new HttpClient())
{
HttpResponseMessage response = await client.GetAsync(url);
response.EnsureSuccessStatusCode();
return await response.Content.ReadAsStringAsync();
}
}
}
这样,你就可以在C#中将SVG图像从URL转换为PNG格式的图像文件了。请注意,上述代码示例中使用了SkiaSharp库来进行SVG图像的转换和保存,你可以根据自己的需求选择其他适合的库。
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