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Aspose.CAD for .NET是一个独立的AutoCAD处理API。它提供将DWG，DWF和DXF文件转换为高质量PDF和光栅图像的功能。开发人员可以从AutoCAD文件中选择和转换特定的布局和图层，并轻松跟踪整个文件转换过程。

近期Aspose.CAD for .Net更新至最新版v20.3，新增了三个非常实用的新功能——为DWG和DXF实现自动代码页检测、支持DWFX文件、中断或在保存上设置超时，接下来，我们通过示例来了解新增功能！

>>欢迎下载Aspose.CAD for .NET v20.3体验

新增与改善

完整更新细则请参考：【Aspose.CAD for .NET v20.3更新说明】

CADNET-810-为DWG和DXF实现自动代码页检测

using (CadImage cadImage = (CadImage)Image.Load(
    GetFileFromDesktop("file.dwg"),
    new LoadOptions()
    {
        SpecifiedEncoding = CodePages.Japanese,
        SpecifiedMifEncoding = MifCodePages.Japanese,
        RecoverMalformedCifMif = false
    }))
{
    //do export or something else with cadImage
}

CADNET-593-支持DWFX文件

using (Image cadDrawing = Image.Load("example-580-W.dwfx"))
{
    var rasterizationOptions = new CadRasterizationOptions();
 
    rasterizationOptions.PageWidth = cadDrawing.Size.Width;
    rasterizationOptions.PageHeight = cadDrawing.Size.Height;
 
    PdfOptions CADf = new PdfOptions();
    CADf.VectorRasterizationOptions = rasterizationOptions;
 
    cadDrawing.Save("example-580-W_custom.pdf", CADf);
}

CADNET-818-如何中断或在保存上设置超时

 using (Image cadDrawing = Image.Load("huge-drawing.dwg"))
{
    var rasterizationOptions = new CadRasterizationOptions();
 
    rasterizationOptions.PageWidth = cadDrawing.Size.Width;
    rasterizationOptions.PageHeight = cadDrawing.Size.Height;
 
    using (var its = new InterruptionTokenSource())
    {
        PdfOptions CADf = new PdfOptions();
        CADf.VectorRasterizationOptions = rasterizationOptions;
        CADf.InterruptionToken = its.Token;
 
        var exportTask = Task.Factory.StartNew(() =>
        {
            cadDrawing.Save("example-580-W_custom.pdf", CADf);
        });
 
        Thread.Sleep(10000);
        its.Interrupt();
 
        exportTask.Wait();
    }
}