JoJo1 wrote at 2013-12-10 06:26:

objo wrote at 2013-12-12 21:42:

objo wrote at 2013-12-13 14:46:

Elemental wrote at 2011-11-18 07:24:

I really like your ViewCube, but one of my collegues at work had an idea that makes it even beter (in my opinion ;-) )

When you click on one side of the cube it rotates to the side. The change is that it rotates to the opposite site on double click.

It an easy change and I thought maybe you want to add it to your library...

       private DateTime lastClick = DateTime.MinValue;

        void cube_MouseLeftButtonDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
        {
            DateTime currentTime = DateTime.Now;

            Vector3D normalVector = this.m_dicNormalVectors[sender];
            Vector3D upVector = this.m_dicUpVectors[sender];

            //check if this was a double click or a normal click
            if ((currentTime - lastClick).TotalSeconds < 0.5)
            {
                //this was a double click, so scroll to the opposite side of the cube
                normalVector = this.m_dicOppositeNormalVectors[sender];
                upVector = this.m_dicOppositeUpVectors[sender];
            }
            lastClick = currentTime;

            var camera = this.MainViewport.Camera as ProjectionCamera;
            Point3D target = camera.Position + camera.LookDirection;
            double distance = camera.LookDirection.Length;

            Vector3D lookDirection = -normalVector;
            lookDirection.Normalize();
            lookDirection = lookDirection * distance;

            Point3D pos = target - lookDirection;
            Vector3D upDirection = upVector;
            upDirection.Normalize();

            Helper.AnimateTo(camera, pos, lookDirection, upDirection, 500);
        }

Best Regards

objo wrote at 2011-11-18 19:00:

good idea! I added double-click to the ViewCube in change set 72415!

Elemental wrote at 2011-11-20 18:55:

Wow, I learn so much from your toolkit!

Didn't know the MouseButtonEventArgs has a ClickCount property :-)

JustFreak wrote at 2013-05-09 21:08:

objo wrote at 2013-05-27 15:23:

mihaipruna wrote at 2014-04-20 00:42:

objo wrote at 2014-04-29 10:15:

viettp wrote at 2011-10-02 19:22:

I found that alpha color of plane in ExportDemo only work if the transparent plane is declared last.

I need transparent surface feature in my project and don't want to depend on order of visuals. Is there anyway to overcome this issue?

objo wrote at 2011-10-03 19:31:

try the SortingVisual3D, this object sorts its children on distance from the camera to the center of each child's bounding box. 

This is sufficient for simple models like the one shown in the TransparencyDemo, but for more complicated models it might not always give the correct result..

http://helixtoolkit.codeplex.com/wikipage?title=TransparencyDemo

etick wrote at 2013-02-16 11:56:

objo wrote at 2013-03-12 11:44:

Mrme wrote at 2013-08-05 11:09:

Mrme wrote at 2013-08-06 10:17:

objo wrote at 2013-08-08 08:26:

Mrme wrote at 2013-08-08 10:41:

fdhaene wrote at 2012-10-25 18:32:

Hi,

Is it possible to get the Viewport3D screen 2D coordinates from a Point3D and

viceversa: getting the Point3D from a 2D point in the Viewport3D.

thanks,

Filip 

objo wrote at 2012-10-26 08:53:

See Viewport3DHelper.Point2DtoPoint3D and Viewport3DHelper.Point3DtoPoint2D

fdhaene wrote at 2012-10-26 10:10:

 Point3D p1, p2;
 Point pIn = new Point(3, 3);
 if (Viewport3DHelper.Point2DtoPoint3D(viewport3D.Viewport, pIn, out p1, out p2))
 {
      MessageBox.Show(p1.X.ToString() + "," + p1.Y.ToString());
 }

objo wrote at 2012-11-02 22:36:

hi Filip, if your MatrixCamera has no inverse for the view/projection matrix I don't think it will be possible to un-project the point...