使用坐标将 DWG 转换为 PDF

如何使用坐标将 DWG 转换为 PDF

Aspose.CAD 提供了加载 AutoCAD DWG 文件并通过提供坐标将其导出为 PDF 格式的功能。为此，API 提供了 CadVportTableObject 类。CadVportTableObject 类用于指定转换的坐标。

以下代码示例演示了如何使用 Aspose.CAD for .NET 在 C# 中通过提供坐标将 DWG 文件转换为 PDF 格式。

// For complete examples and data files, please go to https://github.com/aspose-cad/Aspose.CAD-for-.NET
// The path to the documents directory.
string MyDir = RunExamples.GetDataDir_DWGDrawings();
string sourceFilePath = MyDir + "visualization_-_conference_room.dwg";
using (CadImage cadImage = (CadImage)Image.Load(sourceFilePath))
{
    CadRasterizationOptions rasterizationOptions = new CadRasterizationOptions();
    rasterizationOptions.Layouts = new string[] { "Model" };
    rasterizationOptions.NoScaling = true;

    // note: preserving some empty borders around part of image is the responsibility of customer
    // top left point of region to draw
    Point topLeft = new Point(500, 1000);
    double width = 3108;
    double height = 2489;

    CadVportTableObject newView = new CadVportTableObject();
    newView.Name = new CadStringParameter();
    newView.Name.Init("*Active");
    newView.CenterPoint.X = topLeft.X + width / 2f;
    newView.CenterPoint.Y = topLeft.Y - height / 2f;
    newView.ViewHeight.Value = height;
    newView.ViewAspectRatio.Value = width / height;

    for (int i = 0; i < cadImage.ViewPorts.Count; i++)
    {
        CadVportTableObject currentView = (CadVportTableObject)(cadImage.ViewPorts[i]);
        if (cadImage.ViewPorts.Count == 1 || string.Equals(currentView.Name.Value.ToLowerInvariant(), "*active"))
        {
            cadImage.ViewPorts[i] = newView;
            break;
        }
    }

    // Create an instance of PdfOptions
    Aspose.CAD.ImageOptions.PdfOptions pdfOptions = new Aspose.CAD.ImageOptions.PdfOptions();
    // Set the VectorRasterizationOptions property
    pdfOptions.VectorRasterizationOptions = rasterizationOptions;

    MyDir = MyDir + "ConvertDWGToPDFBySupplyingCoordinates_out.pdf";
    //Export the DWG to PDF
    cadImage.Save(MyDir, pdfOptions);                
}