void hVp3D_MouseMove(object sender, System.Windows.Input.MouseEventArgs e)
{
if (_enableHover)
{
var hits = hVp3D.FindHits(e.GetPosition(hVp3D));
foreach (var hit in hits)
{
OnModelSelected(hit.ModelHit as MeshGeometryModel3D);
break;
}
}
}
/// <summary>
/// Finds the hits for a given 2D viewport position.
/// </summary>
/// <param name="viewport">
/// The viewport.
/// </param>
/// <param name="position">
/// The position.
/// </param>
/// <returns>
/// List of hits, sorted with the nearest hit first.
/// </returns>
public static IList <HitTestResult> FindHits(this Viewport3DX viewport, Point position)
{
return(viewport.FindHits(position.ToVector2()));
}
/// <summary>
/// 連續點擊兩下產生出球
/// </summary>
public void OnMouseDoubleClickHandler(object sender, System.Windows.Input.MouseButtonEventArgs e)
{
//如果當前可點擊的狀態為否則直接return
if (!MainViewModel.ProjData.CanSelectPoints)
{
return;
}
Viewport3DX viewport = sender as Viewport3DX;
if (viewport == null)
{
return;
}
var point = e.GetPosition(viewport);
var hitTests = viewport.FindHits(point);
//null或是點到的東西為少於零個
if (hitTests == null || hitTests.Count <= 0)
{
return;
}
foreach (var hit in hitTests)
{
//有可能點到對稱面，不是BoneModel的話換下一個模型
if (!(hit.ModelHit is BoneModel))
{
continue;
}
BallModel ball = new BallModel
{
BallName = "Ball",
};
//這邊很怪 拿不到該有的屬性資訊只有一些基底類別的資訊
BoneModel model = hit.ModelHit as BoneModel;
foreach (BoneModel modeltem in MainViewModel.ProjData.BoneCollection)
{
//先找出當前點到的BoneModel是哪個，並將點擊的球的ModelType設定成跟該Model一樣
if (modeltem.Geometry.Positions.Count == model.Geometry.Positions.Count)
{
ball.ModelType = modeltem.ModelType;
Binding binding = new Binding("Transform");
binding.Source = modeltem;
binding.Mode = BindingMode.OneWay;
BindingOperations.SetBinding(ball, HelixToolkit.Wpf.SharpDX.Model3D.TransformProperty, binding);
}
}
var ballContainer = new HelixToolkit.Wpf.SharpDX.MeshBuilder();
ball.BallCenter = new Vector3(Convert.ToSingle(hit.PointHit.X), Convert.ToSingle(hit.PointHit.Y), Convert.ToSingle(hit.PointHit.Z));
ballContainer.AddSphere(ball.BallCenter, 1.5);
ball.Geometry = ballContainer.ToMeshGeometry3D();
ball.Material = PhongMaterials.White;
MainViewModel.ProjData.BallCollection.Add(ball);
break;
}
}