Revit二次开发之获得项目族预览图-LMLPHP

using Autodesk.Revit.UI;

using Autodesk.Revit.DB;
using Autodesk.Revit.Attributes;
using System.Windows.Media.Imaging;
using Autodesk.Revit.UI.Selection;
 
namespace HelloWorld
{
    [Transaction(TransactionMode.Manual)]
    [Regeneration(RegenerationOption.Manual)]
    public class Test : IExternalCommand
    {
        public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
        {
            UIDocument uidoc = commandData.Application.ActiveUIDocument;
            Document doc = uidoc.Document;
            Reference refer = uidoc.Selection.PickObject(ObjectType.Element,new Filter(), "拾取目标构件");
 
            FamilyInstance instance = doc.GetElement(refer) as FamilyInstance;
            FamilySymbol symbol = instance.Symbol;
 
            //可以将image保存或是传递给PictreBox
            System.Drawing.Image image = symbol.GetPreviewImage(new System.Drawing.Size(100,100));
            
            return Result.Succeeded;
        }
    }
    //过滤器
    public class Filter : ISelectionFilter
    {
        public bool AllowElement(Element elem)
        {
            return elem.Category.Name == "管道附件" & elem.Name == "钢管_沟槽_同径90度弯头_DN25-600";
        }
 
        public bool AllowReference(Reference reference, XYZ position)
        {
            return false;
        }
    }
 
}
05-07 15:50