예제 #1
0
        /// <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 canceled the external operation
        /// at some point. Failure should be returned if the application is unable to proceed with
        /// the operation.</returns>
        public Autodesk.Revit.UI.Result Execute(Autodesk.Revit.UI.ExternalCommandData commandData,
                                                ref string message, Autodesk.Revit.DB.ElementSet elements)
        {
            Transaction newTran = null;

            try
            {
                UIDocument uiDoc = commandData.Application.ActiveUIDocument;
                if (null == uiDoc)
                {
                    message = "this command needs to be run in an active document.";
                    return(Result.Failed);
                }
                Document doc = uiDoc.Document;

                ICollection <ElementId> selectedId = uiDoc.Selection.GetElementIds();
                if (1 != selectedId.Count)
                {
                    message = "Please select a multistory stairs before running this command.";
                    return(Result.Failed);
                }
                MultistoryStairs mStairs = doc.GetElement(selectedId.ElementAt(0)) as MultistoryStairs;
                if (null == mStairs)
                {
                    message = "Please select a multistory stairs before running this command.";
                    return(Result.Failed);
                }

                View currentView = doc.ActiveView;
                if (null == currentView || currentView.ViewType != ViewType.Elevation || !currentView.CanBePrinted)
                {
                    message = "The current view should be an elevation view to allow user to select levels.";
                    return(Result.Failed);
                }

                // allow the user to select the stairs to add stairs.
                LevelSelectionFilter    selectionFilter  = new LevelSelectionFilter(mStairs, OperationAction.Add);
                IList <Reference>       userSelectedRefs = uiDoc.Selection.PickObjects(Autodesk.Revit.UI.Selection.ObjectType.Element, selectionFilter);
                IEnumerable <ElementId> userSelectedIds  = from refer in userSelectedRefs select refer.ElementId;

                // start the transaction and add the stairs into the multistory stairs.
                newTran = new Transaction(doc, "Add Stairs to Multistory Stairs");
                newTran.Start();
                mStairs.AddStairsByLevelIds(new HashSet <ElementId>(userSelectedIds));
                newTran.Commit();

                return(Autodesk.Revit.UI.Result.Succeeded);
            }
            catch (Exception e)
            {
                message = e.Message;
                if ((newTran != null) && newTran.HasStarted() && !newTran.HasEnded())
                {
                    newTran.RollBack();
                }
                return(Autodesk.Revit.UI.Result.Failed);
            }
        }
예제 #2
0
        /// <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 canceled the external operation
        /// at some point. Failure should be returned if the application is unable to proceed with
        /// the operation.</returns>
        public Autodesk.Revit.UI.Result Execute(Autodesk.Revit.UI.ExternalCommandData commandData,
                                                ref string message, Autodesk.Revit.DB.ElementSet elements)
        {
            Transaction newTran = null;

            try
            {
                UIDocument uiDoc = commandData.Application.ActiveUIDocument;
                if (null == uiDoc)
                {
                    message = "this command needs to be run in an active document.";
                    return(Result.Failed);
                }
                Document doc = uiDoc.Document;

                ICollection <ElementId> selectedId = uiDoc.Selection.GetElementIds();
                if (1 != selectedId.Count)
                {
                    message = "Please select a stairs element before running this command.";
                    return(Result.Failed);
                }
                Stairs stairsElem = doc.GetElement(selectedId.ElementAt(0)) as Stairs;
                if (null == stairsElem)
                {
                    message = "Please select a stairs element before running this command.";
                    return(Result.Failed);
                }
                if (stairsElem.MultistoryStairsId != ElementId.InvalidElementId)
                {
                    TaskDialog.Show("Warning", "The selected stairs is in a multistory stairs already.");
                    return(Result.Succeeded);
                }

                // create a multistory stairs by input a stair element.
                newTran = new Transaction(doc, "Create Multistory Stairs");
                newTran.Start();
                MultistoryStairs.Create(stairsElem);
                newTran.Commit();

                return(Autodesk.Revit.UI.Result.Succeeded);
            }
            catch (Exception e)
            {
                message = e.Message;
                if ((newTran != null) && newTran.HasStarted() && !newTran.HasEnded())
                {
                    newTran.RollBack();
                }
                return(Autodesk.Revit.UI.Result.Failed);
            }
        }