Preview Window in AutoCAD using .NET API
A slightly sideways but less development-intensive option may be to generate a temporary 3D DWF and then pass it to a separate Design Review or Navisworks Freedom session; there might also be the option to embed a Navisworks viewer object. All the navigation tools, none of the labor.
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If you are going to fly by the seat of your pants, expect friction burns.
"I don't know" is the beginning of knowledge, not the end.
If you are going to fly by the seat of your pants, expect friction burns.
"I don't know" is the beginning of knowledge, not the end.
Here is a complete control:
using System;
using System.Drawing;
using System.Windows.Forms;
using Autodesk.AutoCAD;
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.Geometry;
using Autodesk.AutoCAD.GraphicsSystem;
using Application = Autodesk.AutoCAD.ApplicationServices.Application;
using View = Autodesk.AutoCAD.GraphicsSystem.View;
namespace TestCS
{
public partial class PreviewUserControl : UserControl
{
#region Fields
Device device;
Extents3d extents;
Model model;
Solid3d solid;
Point start;
View view;
#endregion
#region Constructors
public PreviewUserControl()
{
InitializeComponent();
SetStyle(ControlStyles.UserPaint | ControlStyles.AllPaintingInWmPaint, true);
}
#endregion
#region Methods
void CleanUp()
{
if (solid != null)
{
solid.Dispose();
solid = null;
}
if (model != null)
{
model.Dispose();
model = null;
}
if (view != null)
{
// View need to be removed from device
device?.EraseAll();
view.Dispose();
view = null;
}
if (device != null)
{
device.Dispose();
device = null;
}
}
protected override void CreateHandle()
{
base.CreateHandle();
if (DesignMode) return;
Document doc = Application.DocumentManager.MdiActiveDocument;
Manager gsm = doc.GraphicsManager;
var descriptor = new KernelDescriptor();
descriptor.addRequirement(UniqueString.Intern("3D Drawing"));
GraphicsKernel kernel = Manager.AcquireGraphicsKernel(descriptor);
device = gsm.CreateAutoCADDevice(kernel, Handle);
device.OnSize(Size);
view = new View();
view.SetView(new Point3d(1, 1, 1), view.Target, view.UpVector, view.FieldWidth, view.FieldHeight);
device.Add(view);
model = gsm.CreateAutoCADModel(kernel);
extents = new Extents3d();
solid = new Solid3d();
solid.CreateBox(1, 1, 1);
solid.ColorIndex = 1;
view.Add(solid, model);
if (solid.Bounds != null) extents.AddExtents(solid.Bounds.Value);
HandleDestroyed += PreviewUserControl_HandleDestroyed;
}
protected override void OnMouseDoubleClick(MouseEventArgs e)
{
base.OnMouseDoubleClick(e);
view.ZoomExtents(extents.MinPoint, extents.MaxPoint);
RefreshView();
}
protected override void OnMouseDown(MouseEventArgs e)
{
base.OnMouseDown(e);
start = e.Location;
}
protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
if (e.Button != MouseButtons.Left) return;
view.Orbit(Math.PI * (start.X - e.X) / Width, Math.PI * (e.Y - start.Y) / Height);
start = e.Location;
RefreshView();
}
protected override void OnPaint(PaintEventArgs e)
{
RefreshView();
}
protected override void OnSizeChanged(EventArgs e)
{
base.OnSizeChanged(e);
device?.OnSize(Size);
RefreshView();
}
void PreviewUserControl_HandleDestroyed(object sender, EventArgs e)
{
CleanUp();
}
void RefreshView()
{
if (view == null) return;
view.Invalidate();
view.Update();
}
#endregion
}
}
Do I lack of some namespace or class KernelDescriptor is a new one?
If you read through the thread carefully, you'd have seen it:
FRFR1426 answered it on 09-16-2015: The name space is Autodesk.AutoCAD.GraphicsSystem (in acdbmgd.dll).
