public MainViewModel()
{
//Create the Effects Manager
this.EffectsManager = new DefaultEffectsManager();
//Create the Material
this.MeshMaterial = DiffuseMaterials.Bisque;
//Set the initial rotation point to the origin
this.RotationPoint = Point3D.Zero;
//Create the Camera
this.MainCamera = new HelixToolkit.Wpf.SharpDX.PerspectiveCamera
{
Position = new System.Windows.Media.Media3D.Point3D(0f, 40, 40),
LookDirection = new System.Windows.Media.Media3D.Vector3D(0f, -40, -40),
UpDirection = new System.Windows.Media.Media3D.Vector3D(0, 0, 1)
};
}
private void InitCamera()
{
Camera.LookAt(new Point3D(0, 0, 0),
new Vector3D(-4e3, -4e3, -4e3),
0);
switch (Camera)
{
case PerspectiveCamera camera:
camera.FieldOfView = 60;
camera.FarPlaneDistance = AstronomicalObject.Au;
camera.NearPlaneDistance = 1;
break;
case OrthographicCamera camera:
camera.FarPlaneDistance = AstronomicalObject.Au;
camera.NearPlaneDistance = 0;
break;
}
Viewport3DX.CameraMode = CameraMode.Inspect;
}
protected BaseViewModel()
{
// camera models
CameraModelCollection = new List<string>()
{
Orthographic,
Perspective,
};
// on camera changed callback
this.CameraModelChanged += (s, e) =>
{
if (this.cameraModel == Orthographic)
{
//if (this.Camera != null)
//{
// var newCamera = new OrthographicCamera();
// this.Camera.CopyTo(newCamera);
// newCamera.NearPlaneDistance = znear;
// newCamera.FarPlaneDistance = zfar;
// this.Camera = newCamera;
//}
//else
{
this.Camera = this.defaultOrthographicCamera;
}
}
else if (this.cameraModel == Perspective)
{
//if (this.Camera != null)
//{
// var newCamera = new PerspectiveCamera();
// this.Camera.CopyTo(newCamera);
// newCamera.NearPlaneDistance = znear;
// newCamera.FarPlaneDistance = zfar;
// this.Camera = newCamera;
//}
//else
{
this.Camera = this.defaultPerspectiveCamera;
}
}
else
{
throw new HelixToolkitException("Camera Model Error.");
}
};
// default camera model
this.CameraModel = Perspective;
this.Title = "Demo (HelixToolkitDX)";
this.SubTitle = "Default Base View Model";
this.RenderTechnique = Techniques.RenderPhong;
}
private void OnEdgeMouse3DUp(object sender, RoutedEventArgs e)
{
if (this.isCaptured)
{
Application.Current.MainWindow.Cursor = Cursors.Arrow;
this.isCaptured = false;
this.camera = null;
this.viewport = null;
}
}
private void OnEdgeMouse3DDown(object sender, RoutedEventArgs e)
{
var args = e as Mouse3DEventArgs;
if (args == null) return;
if (args.Viewport == null) return;
this.isCaptured = true;
this.viewport = args.Viewport;
this.camera = args.Viewport.Camera;
this.lastHitPos = args.HitTestResult.PointHit;
}
public static void AddPointCloud(Dictionary <KeyValuePair <int, int>, double> PointCollection, out PointModel Points,
out GridModel Grid, out AxisModel Axis, out HelixToolkit.Wpf.SharpDX.Camera Camera, bool cameraType = false)
{
Camera = null;
Points = null;
Grid = null;
Axis = null;
var points = new PointGeometry3D();
var col = new Color4Collection(); // color gradient
var ptPos = new Vector3Collection(); // point positions
var ptIdx = new IntCollection(); // point indexes
if (PointCollection != null && PointCollection.Count() > 1)
{
//newdataFromTxt(path, positionX, positionY, positionZ);
var maxX = PointCollection.Max(x => x.Key.Key); // X
var minX = PointCollection.Min(x => x.Key.Key); // X
var maxY = PointCollection.Max(x => x.Key.Value); // Y
var minY = PointCollection.Min(x => x.Key.Value); // Y
var maxZ = PointCollection.Max(x => x.Value); // Z
var minZ = PointCollection.Min(x => x.Value); // Z
var minYObj = PointCollection.First(x => x.Key.Value == minY);
Trace.WriteLine($"{maxX} {minX} {maxY} {minY} {maxZ} {minZ}");
if (PointCollection.Count() <= 0)
{
return;
}
foreach (var point in PointCollection)
{
var positionToColour = point.Value;
ptIdx.Add(ptPos.Count);
ptPos.Add(new Vector3((float)point.Key.Key, ((float)point.Key.Value), (float)point.Value));
col.Add(new Color4(RedBlueScale((float)minZ, (float)maxZ, (float)positionToColour)));
}
Points = new PointModel
{
// indexes and color gradient
PointsGeometry = new PointGeometry3D {
Positions = ptPos, Indices = ptIdx, Colors = col
},
PointsColor = Colors.White,
PointsTransform = new TranslateTransform3D(-minX, -minY, -minZ)
};
// floor plane grid
LineBuilder gridLines = new LineBuilder();
VisualizationTools.CreateGrid(gridLines, maxX, minX, maxY, minY, minZ);
Grid = new GridModel
{
GridGeometry = gridLines.ToLineGeometry3D(),
GridColor = new Color4(153 / 255.0f, 204 / 255.0f, 255 / 255.0f, 0.3f).ToColor(),
GridTransform = new TranslateTransform3D(0, 0, 0)
};
// lines
LineBuilder arrows = new LineBuilder();
VisualizationTools.CreateAxes(arrows, (float)maxX, (float)minX, (float)maxY, (float)minY, (float)maxZ, (float)minZ);
Axis = new AxisModel
{
AxisGeometry = arrows.ToLineGeometry3D(),
AxisColor = new Color4(0, 255 / 255.0f, 255 / 255.0f, 0.5f).ToColor(),
AxisTransform = new TranslateTransform3D(0, 0, 0)
};
if (cameraType == false)
{
Camera = new HelixToolkit.Wpf.SharpDX.PerspectiveCamera
{
Position = new Point3D(0, 0, Math.Abs(minZ * 100)),
LookDirection = new Vector3D(((float)maxX - (float)minX) / 2, ((float)maxY - (float)minY) / 2, -Math.Abs(minZ * 100)),//z kamerą jest problem przy przybliżaniu prawdopodobnie przez ten LookDirection albo sposób poruszania kamerą
UpDirection = new Vector3D(0, 1, 0),
FarPlaneDistance = 5000000
};
}
else
{
Camera = new HelixToolkit.Wpf.SharpDX.OrthographicCamera
{
Position = new Point3D(0, 0, Math.Abs(minZ * 100)),
LookDirection = new Vector3D(((float)maxX - (float)minX) / 2, ((float)maxY - (float)minY) / 2, -Math.Abs(minZ * 100)),//z kamerą jest problem przy przybliżaniu prawdopodobnie przez ten LookDirection albo sposób poruszania kamerą
UpDirection = new Vector3D(0, 1, 0),
FarPlaneDistance = 5000000
};
}
}
}
