Revit二次开发--屏幕截图/图片导出

在Revit API中有一个方法Document.ExportImage()，可以将单个或多个视图导出为图片。
该方法需要传递一个ImageExportOptions类型的参数，在参数中你可以自定义需要导出的视图、图片地址、图片大小等。

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• 单视图导出

using Autodesk.Revit.Attributes;
using Autodesk.Revit.DB;
using Autodesk.Revit.UI;

namespace ScreenShot
{
    [Transaction(TransactionMode.Manual)]
    public class Command : IExternalCommand
    {
        public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
        {
            ImageExportOptions options = new ImageExportOptions();
            options.ZoomType = ZoomFitType.FitToPage;
            options.ExportRange = ExportRange.CurrentView;
            options.FilePath = @"C:\Users\Administrator\Desktop\CurrentViewImg";
            options.FitDirection = FitDirectionType.Horizontal;
            options.HLRandWFViewsFileType = ImageFileType.JPEGMedium;
            options.ShadowViewsFileType = ImageFileType.JPEGMedium;
            options.PixelSize = 1920;
            commandData.Application.ActiveUIDocument.Document.ExportImage(options);

            return Result.Succeeded;
        }
    }
}

上面代码将当前视图以JPG图片的形式导出到桌面上；如果只想截取当前视窗中可见的部分（截图），可将options.ExportRange设置为VisibleRegionOfCurrentView。

• 多视图导出

using Autodesk.Revit.Attributes;
using Autodesk.Revit.DB;
using Autodesk.Revit.UI;
using System.Collections.Generic;

namespace ScreenShot
{
    [Transaction(TransactionMode.Manual)]
    public class Command : IExternalCommand
    {
        public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
        {
            Document doc = commandData.Application.ActiveUIDocument.Document;
            FilteredElementCollector views = new FilteredElementCollector(doc).OfClass(typeof(View));
            views.OfCategory(BuiltInCategory.OST_Views);
            IList ImageExportList = new List();
            foreach (View view in views)
            {
                if (view.IsTemplate) continue;
                ImageExportList.Add(view.Id);
            }
            var options = new ImageExportOptions
            {
                ZoomType = ZoomFitType.FitToPage,
                PixelSize = 1920,
                FilePath = @"C:\Users\Administrator\Desktop\Views\",
                FitDirection = FitDirectionType.Horizontal,
                HLRandWFViewsFileType = ImageFileType.JPEGMedium,
                ShadowViewsFileType = ImageFileType.JPEGMedium,
                ImageResolution = ImageResolution.DPI_300,
                ExportRange = ExportRange.SetOfViews
            };
            options.SetViewsAndSheets(ImageExportList);
            doc.ExportImage(options);

            return Result.Succeeded;
        }
    }
}

上面代码将项目中所有视图以JPG图片形式导出到桌面Views文件夹中，如下图所示：

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内容或有偏颇之处，还请指正，不胜感激！