private void AutoZoom()
{
bool success;
Viewport3DVisual vp3dv = MeshDiagram3DMath.GetViewport3DVisual(mainViewport, out success);
if (TooBig(vp3dv, out success) && success)
{
while (TooBig(vp3dv, out success) && success)
{
Scale += 0.1;
}
while (!TooBig(vp3dv, out success) && Scale > 0 && success)
{
Scale -= 0.01;
}
Scale += 0.01;
}
else
{
while (!TooBig(vp3dv, out success) && success)
{
Scale -= 0.1;
if (Scale <= 0)
{
Scale = 0.01;
break;
}
}
while (TooBig(vp3dv, out success) && success)
{
Scale += 0.01;
}
}
}
bool IModelVisual3D.Match(Point point2D)
{
bool success = false;
Rect my2DRect = MeshDiagram3DMath.Get2DBoundingBox(lastModelVisual3D, out success);
if (!success)
{
return(false);
}
return(my2DRect.Contains(point2D));
}
/// <summary>
/// Test whether curent 3D scene is too big for current Viewport3DVisual: vp3dv .
/// </summary>
/// <param name="vp3dv">Current Viewport3DVisual.</param>
/// <param name="success">if set to <c>true</c> the scene is too big for this Viewport.</param>
/// <returns></returns>
private static bool TooBig(Viewport3DVisual vp3dv, out bool success)
{
Rect r = MeshDiagram3DMath.Get2DBoundingBox(vp3dv, out success);
if (success && r.Height > 0 && r.Width > 0)
{
if (r.Left < 0 || r.Top < 0 || r.Right > vp3dv.Viewport.Width || r.Bottom > vp3dv.Viewport.Height)
{
return(true);
}
}
else
{
//The vieweport has 0 size
success = false;
}
return(false);
}
public void AddModels()
{
if (elements != null && mainViewport != null)
{
PerspectiveCamera camera = (PerspectiveCamera)mainViewport.Camera;
Vector3D newlookdirection = camera.LookDirection;
bool success;
Viewport3DVisual vp3dv = MeshDiagram3DMath.GetViewport3DVisual(mainViewport, out success);
if (success)
{
foreach (IModelVisual3D element in elements)
{
this.mainViewport.Children.Add(element.GetModelVisual3D(filter, false)); // this is the beginning so no item is selected
this.mainViewportCanvas.Children.Add(element.GetUIElement(filter, vp3dv));
}
}
}
}
//void IModelVisual3D.UpdateViewToLookDirection( Vector3D LookDirection )
//{
// Vector3D look = LookDirection;
// look.Normalize();
// TextVectorOver = new Vector3D( -look.Y, look.X, 0 );
// TextVectorUp = new Vector3D( -look.Z * look.X, -look.Z * look.Y, look.Y * look.Y + look.X * look.X );
// TextVectorOver.Normalize();
// TextVectorUp.Normalize();
//}
UIElement IModelVisual3D.GetUIElement(ModelVisual3DFilter FilterSettings, Viewport3DVisual DestinationViewport3D)
{
if (FilterSettings.Texts2D)
{
TextBlock tb = new TextBlock();
tb.FontSize += 1;
tb.FontWeight = FontWeights.Bold;
tb.Foreground = new SolidColorBrush(Colors.DarkGreen);
tb.Text = Text;
Point p2d = MeshDiagram3DMath.Get2DPoint(this.Point3D, DestinationViewport3D);
Canvas.SetTop(tb, p2d.Y + 0);
Canvas.SetLeft(tb, p2d.X + 10);
return(tb);
}
else
{
return(new UIElement());
}
}
private void meshDiagramViewport3D_CameraIsChanged(object sender, System.EventArgs e)
{
if (lastModelVisual3D != null && displayDescriptionFrontToCamera)
{
// Transform3D tr = meshDiagramViewport3D.GetCamera().Transform;
Viewport3DVisual mv3dv = Utilities.GetViewport3DVisual(lastModelVisual3D);
Matrix3D mt3d = Utilities.GetTotalTransformModelVisual3D(lastModelVisual3D);
Matrix3D mt3dcamera = Utilities.GetCameraTransform(mv3dv);
//mt3d.Invert();
Transform3D tr = new MatrixTransform3D(mt3d);
ProjectionCamera camera = mv3dv.Camera as ProjectionCamera;
Vector3D BaseTextVectorOver = MeshDiagram3DMath.GetCrossProduct(camera.LookDirection, camera.UpDirection);
//Vector3D BaseTextVectorUp = new Vector3D( -camera.LookDirection.Z * camera.LookDirection.X, -camera.LookDirection.Z * camera.LookDirection.Y, camera.LookDirection.Y * camera.LookDirection.Y + camera.LookDirection.X * camera.LookDirection.X );
Vector3D BaseTextVectorUp = new Vector3D(camera.UpDirection.X, camera.UpDirection.Y, camera.UpDirection.Z);
//bool TransformationResultOK;
//Matrix3D m = _3DTools.MathUtils.TryWorldToViewportTransform( mv3dv, out TransformationResultOK );
////BaseTextVectorOver.Normalize();
//// BaseTextVectorUp.Normalize();
//// model.Transform = tr;
//lastModelVisual3D.Children.Clear();
//// TextVectorOver = Panel3DMath.Transform3DVector( tr, TextVectorOver );
//// TextVectorUp = Panel3DMath.Transform3DVector( tr, TextVectorUp );
//if ( TransformationResultOK )
//{
// TextVectorOver = BaseTextVectorOver * m;
// TextVectorUp = BaseTextVectorUp * m;
//}
//else
//{
// TextVectorOver = BaseTextVectorOver * mt3dcamera;
// TextVectorUp = BaseTextVectorUp * mt3dcamera;
//}
TextVectorOver = BaseTextVectorOver;
TextVectorUp = BaseTextVectorUp;
TextVectorOver.Normalize();
TextVectorUp.Normalize();
FillModel(false);//TODO: I am not sure whether false is OK??
}
}