Rotate and Copy Entities Example (C#)

//--------------------------------------------------------------
// Preconditions:
// 1. Create a C# Windows console project.
// 2. Copy and paste this example into the C# IDE.
// 3. Add a reference to:
//    install_dir\APISDK\tlb\DraftSight.Interop.dsAutomation.dll.
// 4. Add references to System and System.Windows.Forms.
// 5. Start DraftSight and open a new document.
// 6. Construct multiple entities (e.g., circle, rectangle, 2D PolyLine,
//    etc.).
// 7. Start debugging the project.
//
// Postconditions:
// 1. When the prompt appears in the DraftSight command window,
//    select the entities to rotate and press the Enter key. The
//    selected entities are rotated.
// 2. Execution stops so that you can examine the drawing to
//    verify that the selected entities were rotated. Click the
//    Continue button in the IDE to continue.
// 3. The selected entities are copied.
//----------------------------------------------------------------

using System;
using System.Collections.Generic;
using System.Text;
using DraftSight.Interop.dsAutomation;
using System.Runtime.InteropServices;
using System.Windows.Forms;
using System.Diagnostics;

namespace RotateSelectedEntities
{
    class Program
    {
        static void Main(string[] args)
        {
            //Connect to DraftSight application
            DraftSight.Interop.dsAutomation.Application dsApp = ConnectToDraftSight();
            if (null == dsApp)
            {
                return;
            }

            dsApp.AbortRunningCommand(); // abort any command currently running in DraftSight to avoid nested commands

            //Get active document
            Document dsDoc = dsApp.GetActiveDocument();
            if (null == dsDoc)
            {
                MessageBox.Show("There are no open documents in DraftSight.");
                return;
            }

            //Get model space
            Model dsModel = dsDoc.GetModel();

            //Get Sketch Manager
            SketchManager dsSketchMgr = dsModel.GetSketchManager();

            //Get selection manager
            SelectionManager dsSelectionMgr = dsDoc.GetSelectionManager();

            //Get selection filter
            SelectionFilter dsSelectionFilter = dsSelectionMgr.GetSelectionFilter();

            //Clear selection filter
            dsSelectionFilter.Clear();

            //Add all entities to the selection filter
            foreach (dsObjectType_e entityType in Enum.GetValues(typeof(dsObjectType_e)))
            {
                dsSelectionFilter.AddEntityType(entityType);
            }

            //Activate selection filter
            dsSelectionFilter.Active = true;

            //Get command message object
            CommandMessage dsCommandMessage = dsApp.GetCommandMessage();

            //Clear previous selection
            dsSelectionMgr.ClearSelections(dsSelectionSetType_e.dsSelectionSetType_Previous);

            //Run prompt to select entities
            bool singleSelection = false;
            string prompt = "Select entities";
            string errorMessage = "Unknown entity";
            if (dsCommandMessage.PromptForSelection(singleSelection, prompt, errorMessage))
            {
                //Get number of selected objects
                int count = dsSelectionMgr.GetSelectedObjectCount(dsSelectionSetType_e.dsSelectionSetType_Previous);

                DispatchWrapper[] dsEntities = new DispatchWrapper[count];
                int[] dsEntityTypes = new int[count];

                //Get selected entities
                for (int index = 0; index < count; ++index)
                {
                    dsObjectType_e entityType;
                    object selectedEntity = dsSelectionMgr.GetSelectedObject(dsSelectionSetType_e.dsSelectionSetType_Previous, index, out entityType);
                    dsEntities[index] = new DispatchWrapper(selectedEntity);

                    dsEntityTypes[index] = (int)entityType;
                }

                //Rotation parameters
                double pivotPointX = 0.0;
                double pivotPointY = 0.0;
                double rotateAngle = Math.PI / 4; //In radians

                //Rotate entities
                dsSketchMgr.RotateEntities(pivotPointX, pivotPointY, rotateAngle, dsEntityTypes, dsEntities);

                //Stop execution
                //Examine the document
                System.Diagnostics.Debugger.Break();

                //Click the Continue button in the IDE

                //Copy parameters
                double displacementX = 2.0;
                double displacementY = 2.0;
                double displacementZ = 0.0;

                //Copy entities
                object[] dsEntityCopies = dsSketchMgr.CopyEntities2(displacementX, displacementY, displacementZ, dsEntityTypes, dsEntities);


            }
        }

        private static DraftSight.Interop.dsAutomation.Application ConnectToDraftSight()
        {
            
            DraftSight.Interop.dsAutomation.Application dsApp = null;

            try
            {
                //Connect to DraftSight
                dsApp = (DraftSight.Interop.dsAutomation.Application)Marshal.GetActiveObject("DraftSight.Application");
            }
            catch (Exception ex)
            {
                MessageBox.Show("Failed to connect to DraftSight. Cause: " + ex.Message);
                dsApp = null;
            }

            return dsApp;
        }
    }
}