Render CAD Drawings | View DWG or DWF as HTML in C# using .NET API

ConvertDwgToHTML.cs

// Render DWG CAD drawing to view as HTML with embedded resources using C#
using (Viewer viewer = new Viewer("drawing.dwg"))
{
    HtmlViewOptions viewOptions = HtmlViewOptions.ForEmbeddedResources("page_{0}.html");
    viewer.View(viewOptions);
}

ConvertDwgtoHtmlExtRes.cs

// Render C# CAD drawing to view as HTML with external resources using C#
using (Viewer viewer = new Viewer("drawing.dwg"))
{
    HtmlViewOptions viewOptions = HtmlViewOptions.ForExternalResources(
        "page_{0}.html","page_{0}/resource_{1}","page_{0}/resources");

    viewer.View(viewOptions);
}

GetDwgLayoutsAndLayers.cs

// Get Layouts and Layers of DWG CAD drawing in C#
using (Viewer viewer = new Viewer("drawing.dwg"))
{
    ViewInfoOptions viewInfoOptions = ViewInfoOptions.ForHtmlView();
    CadViewInfo viewInfo = viewer.GetViewInfo(viewInfoOptions) as CadViewInfo;

    Console.WriteLine("File type: " + viewInfo.FileType);
    Console.WriteLine("Pages count: " + viewInfo.Pages.Count);

    foreach (Layout layout in viewInfo.Layouts)
        Console.WriteLine(layout);

    foreach (Layer layer in viewInfo.Layers)
        Console.WriteLine(layer);
}

RenderCadLayers.cs

// Render Layers of .dwg CAD drawing in C#
using (Viewer viewer = new Viewer("drawing.dwg"))
{
    HtmlViewOptions viewOptions = HtmlViewOptions.ForEmbeddedResources();
    viewOptions.CadOptions.Layers = new List<Layer>
    {
        new Layer("Walls"),
        new Layer("Windows")
    };
    viewer.View(viewOptions);
}

RenderCadLayouts.cs

// Render Layouts of .dwg CAD drawing in C#
using (Viewer viewer = new Viewer("drawing.dwg"))
{
   HtmlViewOptions viewOptions = HtmlViewOptions.ForEmbeddedResources();
   viewOptions.CadOptions.RenderLayouts = true;
   viewer.View(viewOptions);
}