更新

ShrlAlgoToolkit.Revit/Extensions/ElementAssist.cs

@@ -1,9 +1,51 @@
 using Autodesk.Revit.DB;
 
+using OfficeOpenXml.FormulaParsing.Excel.Functions.Logical;
+
 namespace ShrlAlgoToolkit.Revit.Assists;
 
 public static class ElementAssist
 {
+    /// <summary>
+    ///获取元素的包围框
+    /// </summary>
+    /// <param name="elements"></param>
+    /// <returns></returns>
+    public static BoundingBoxXYZ GetBoundingBox(List<Element> elements)
+    {
+        if (elements == null || elements.Count == 0)
+        {
+            return new BoundingBoxXYZ();
+        }
+
+        var gmax = XYZ.Zero;
+        var gmin = XYZ.Zero;
+        var elementIds = elements.Select(e => e.Id).ToList();
+        var doc = elements.FirstOrDefault()?.Document;
+        using (SubTransaction sub = new SubTransaction(doc))
+        {
+            sub.Start();
+            Group g;
+            if (doc.IsFamilyDocument)
+            {
+                g = doc.FamilyCreate.NewGroup(elementIds);
+
+            }
+            else
+            {
+                g = doc.Create.NewGroup(elementIds);
+            }
+            gmax = g.get_BoundingBox(null).Max;
+            gmin = g.get_BoundingBox(null).Min;
+            sub.RollBack();
+        }
+        return new BoundingBoxXYZ
+        {
+            Max = gmax,
+            Min = gmin
+        };
+    }
+
     /// <summary>
     /// 镜像元素
     /// </summary>
@@ -285,7 +327,7 @@ public static class ElementAssist
         //    ElementId typeId = elem.GetTypeId();
         //    if (typeId != ElementId.InvalidElementId)
         //    {
-        //        var elementFunc = elem.Document?.GetElement(typeId);
+        //        var elementFunc = elem.doc?.GetElement(typeId);
         //        parameterName = elementFunc?.LookupParameter(paramName);
 
         //    }