Create SoildIntersectCommand.cs

Test/SoildIntersectCommand.cs

@@ -0,0 +1,58 @@
+using System.Diagnostics.Contracts;
+using Autodesk.Revit.Attributes;
+using Autodesk.Revit.DB;
+using Autodesk.Revit.UI;
+using Autodesk.Revit.UI.Selection;
+
+namespace Test;
+
+[Transaction(TransactionMode.Manual)]
+public class SoildIntersectCommand : IExternalCommand
+{
+    public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
+    {
+        // select a extrusion element
+        Reference reference =
+            commandData.Application.ActiveUIDocument.Selection.PickObject(ObjectType.Element,
+                new ExtrusionFaceSelectionFilter(),
+                "Select a extrusion element");
+        var doc = commandData.Application.ActiveUIDocument.Document;
+        var e1 = doc.GetElement(reference);
+        var r2 = commandData.Application.ActiveUIDocument.Selection.PickObject(ObjectType.Element,
+            new ExtrusionFaceSelectionFilter(), "Select another extrusion element");
+        var e2 = doc.GetElement(r2);
+        // try see intersect soild
+        var solid1 = GetSolid(e1 as Extrusion);
+        var solid2 = GetSolid(e2 as Extrusion);
+        if (solid1 != null && solid2 != null)
+        {
+            Solid operation = BooleanOperationsUtils.ExecuteBooleanOperation(solid1, solid2, BooleanOperationsType.Intersect);
+            // create direct shape
+            using Autodesk.Revit.DB.Transaction trans = new Transaction(doc, "Create DirectShape");
+            trans.Start();
+            DirectShape ds = DirectShape.CreateElement(doc, new ElementId(BuiltInCategory.OST_GenericModel));
+            ds.ApplicationId = "ApplicationId";
+            ds.ApplicationDataId = "ApplicationDataId";
+            ds.SetShape(new GeometryObject[] { operation });
+            trans.Commit();
+        }
+        return Result.Succeeded;
+    }
+    Solid? GetSolid(Extrusion? element)
+    {
+        Options options = new Options();
+        options.ComputeReferences = true;
+        options.DetailLevel = ViewDetailLevel.Fine;
+        options.IncludeNonVisibleObjects = false;
+        GeometryElement geomElem = element.get_Geometry(options);
+        foreach (GeometryObject geomObj in geomElem)
+        {
+            Solid? solid = geomObj as Solid;
+            if (solid != null)
+            {
+                return solid;
+            }
+        }
+        return null;
+    }
+}