added Revit 2020 SDK files

2026-08-15 18:14:02 +00:00 · 2019-09-11 14:43:53 +02:00
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+//
+// (C) Copyright 2003-2019 by Autodesk, Inc.
+//
+// Permission to use, copy, modify, and distribute this software in
+// object code form for any purpose and without fee is hereby granted,
+// provided that the above copyright notice appears in all copies and
+// that both that copyright notice and the limited warranty and
+// restricted rights notice below appear in all supporting
+// documentation.
+//
+// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
+// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
+// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
+// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
+// UNINTERRUPTED OR ERROR FREE.
+//
+// Use, duplication, or disclosure by the U.S. Government is subject to
+// restrictions set forth in FAR 52.227-19 (Commercial Computer
+// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
+// (Rights in Technical Data and Computer Software), as applicable.
+//
+
+using System;
+using System.Windows.Forms;
+using System.Collections;
+using System.Collections.Generic;
+
+using Autodesk.Revit;
+using Autodesk.Revit.DB;
+using Autodesk.Revit.UI;
+using Autodesk.Revit.UI.Selection;
+
+
+namespace Revit.SDK.Samples.WorkThread.CS
+{
+    /// <summary>
+    /// Implements the Revit add-in interface IExternalCommand
+    /// </summary>
+    [Autodesk.Revit.Attributes.Transaction(Autodesk.Revit.Attributes.TransactionMode.Manual)]
+    [Autodesk.Revit.Attributes.Regeneration(Autodesk.Revit.Attributes.RegenerationOption.Manual)]
+    public class Command : IExternalCommand
+    {
+        /// <summary>
+        /// Implement this method as an external command for Revit.
+        /// </summary>
+        /// <param name="commandData">An object that is passed to the external application 
+        /// which contains data related to the command, 
+        /// such as the application object and active view.</param>
+        /// <param name="message">A message that can be set by the external application 
+        /// which will be displayed if a failure or cancellation is returned by 
+        /// the external command.</param>
+        /// <param name="elements">A set of elements to which the external application 
+        /// can add elements that are to be highlighted in case of failure or cancellation.</param>
+        /// <returns>Return the status of the external command. 
+        /// A result of Succeeded means that the API external method functioned as expected. 
+        /// Cancelled can be used to signify that the user cancelled the external operation 
+        /// at some point. Failure should be returned if the application is unable to proceed with 
+        /// the operation.</returns>
+        public virtual Result Execute(ExternalCommandData commandData
+            , ref string message, ElementSet elements)
+        {
+            try
+            {
+                UIDocument uidoc = commandData.Application.ActiveUIDocument;
+
+                if (uidoc == null)
+                {
+                    // we can continue only if there is a document open
+                    return Result.Cancelled;
+                }
+
+                // we ask the end-user to pick a face
+
+                string sref = null;
+                Result result = PickWallFace(uidoc, out sref);
+
+                if (result == Result.Succeeded)
+                {
+                    // Start the analysis for the picked wall surface
+                    Application.thisApp.RunAnalyzer(commandData.Application, sref);
+                }
+                else if (result == Result.Failed)
+                {
+                    message = "Did not picked a face on a Wall or FaceWall element!";
+                }
+
+                return Result.Succeeded;
+            }
+            catch (Exception ex)
+            {
+                message = ex.Message;
+                return Result.Failed;
+            }
+        }
+
+        /// <summary>
+        ///   Prompting the user to pick a wall face
+        /// </summary>
+        /// <returns>
+        ///   Returns 'Cancelled' if the end-user escapes from face picking.
+        ///   Otherwise returns Succeeded or Failed depending on whether
+        ///   a face on a wall or face-wall was picked as expected
+        /// </returns>
+        private Result PickWallFace(UIDocument uidoc, out String sref)
+        {
+            sref = null;
+            Reference faceref = null;
+
+            try
+            {
+                faceref = uidoc.Selection.PickObject(ObjectType.Face, "Pick a face on a wall or face-wall element.");
+            }
+            catch (Autodesk.Revit.Exceptions.OperationCanceledException)
+            {
+                return Result.Cancelled;
+            }
+
+            // we make sure we have the expected kind of face reference
+
+            if (faceref != null)
+            {
+                Element pickedelem = uidoc.Document.GetElement(faceref.ElementId);
+                FaceWall asfacewall = pickedelem as FaceWall;
+                Wall aswall = pickedelem as Wall;
+
+                // in this particular example, we accepts faces on wall elements only
+
+                if ((aswall == null) && (asfacewall == null))
+                {
+                    return Result.Failed;
+                }
+            }
+
+            // we convert the reference object to a more stable string
+            // representation that is more traceable  across transactions
+
+            sref = faceref.ConvertToStableRepresentation(uidoc.Document);
+
+            return Result.Succeeded;
+        }
+    }
+}
+