Adding a Profile PVI Through the API

The code below shows how to add a PVI to an existing profile. The code has the user select a profile and then the profile view the profile is in. Then using the picked point, or somewhere near it, a PVI is added to the profile.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Autodesk.AutoCAD.Runtime;
using System.Windows.Forms;
using acadApp = Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.EditorInput;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.Civil.ApplicationServices;
using Autodesk.Civil.DatabaseServices;
using Autodesk.AutoCAD.Geometry;

namespace TestBands
{
    public class TestBands
    {
        [CommandMethod("TestBands")]
        public void TestBandsCommand()
        {
            CivilDocument civDoc = CivilApplication.ActiveDocument;
            Database db = acadApp.Application.DocumentManager.MdiActiveDocument.Database;
            Editor ed = acadApp.Application.DocumentManager.MdiActiveDocument.Editor;
            using (Transaction tr = db.TransactionManager.StartTransaction())
            {
                ProfileView profView = null;
                Point3d ptSelected = new Point3d(0,0,0);
                ObjectId profileObjId = SelectProfile(civDoc, "Select profile section to edit: ", out profView, out ptSelected);

                Profile profSection = profileObjId.GetObject(OpenMode.ForRead) as Profile;
                double dElev = double.MinValue;
                double dSta = double.MinValue;

                profView.FindStationAndElevationAtXY(ptSelected.X, ptSelected.Y, ref dSta, ref dElev);

                profSection.PVIs.AddPVI(dSta, dElev + 10);

                ed.Regen();
                ed.UpdateScreen();
                tr.Commit();
            }
        }

        public static ObjectId SelectProfile(CivilDocument civDoc, string prompt, out ProfileView profView, out Point3d ptSelected)
        {
            Editor ed = acadApp.Application.DocumentManager.MdiActiveDocument.Editor;
            ptSelected = new Point3d(0,0,0);
            try
            {
                PromptEntityOptions pops = new PromptEntityOptions("\n" + prompt);
                profView = null;
                pops.Message = "\nYou must select a Profile View:";
                PromptEntityResult profileRes = ed.GetEntity(pops);
                
                if (profileRes.Status == PromptStatus.OK)
                {
                    // Get the profile view of the profile.
                    Profile prof = profileRes.ObjectId.GetObject(OpenMode.ForRead) as Profile;
                    Alignment align = prof.AlignmentId.GetObject(OpenMode.ForRead) as Alignment;
                    profView = ed.GetEntity(pops).ObjectId.GetObject(OpenMode.ForRead) as ProfileView;
                    ptSelected = profileRes.PickedPoint;
                    return profileRes.ObjectId;
                }
                return ObjectId.Null;


            }
            catch (Autodesk.AutoCAD.Runtime.Exception exe)
            {
                ed.WriteMessage("Error creating alignment: " + exe.Message);
            }
            catch (System.Exception ex)
            {
                ed.WriteMessage("Error creating alignment: " + ex.Message);
            }
            profView = null;
            return ObjectId.Null;
        }
    }
}

This example is from a larger project that exports Civil 3D information to ISIS, MIKE, and HEC-RAS. It’s also being used as an example of how the bands do not update when using the API. To update the bands after adding a PVI one has to go into the Profile View Properties. This will cause the bands to reflect changes made using the API.