public Vector3D Move(Ray3D ray)
{
if (!isMoving) return new Vector3D();
Vector3D t = Vector3D.CrossProduct(ray.Direction, Direction);
Vector3D n = Vector3D.CrossProduct(Direction, t);
var i = ray.PlaneIntersection(Origin, n);
if (!i.HasValue)
return new Vector3D();
Point3D mousePoint = i.Value;
double x = 0;
double y = 0;
double z = 0;
switch (Type)
{
case ManipulatorType.TranslateX:
x = mousePoint.X - _lastMousePoint.X;
break;
case ManipulatorType.TranslateY:
y = mousePoint.Y - _lastMousePoint.Y;
break;
case ManipulatorType.TranslateZ:
z = mousePoint.Z - _lastMousePoint.Z;
break;
}
_lastMousePoint = mousePoint;
var delta = new Vector3D(x, y, z);
/* TranslateTransform3D transform = this.Transform as TranslateTransform3D;
transform.OffsetX += x;
transform.OffsetY += y;
transform.OffsetZ += z;*/
return delta;
}
/// <summary>
/// Unproject a point from the screen (2D) to a point on plane (3D)
/// </summary>
/// <param name="p"></param>
/// <param name="position">plane position</param>
/// <param name="normal">plane normal</param>
/// <returns></returns>
public Point3D?UnProject(Point p, Point3D position, Vector3D normal)
{
Ray3D ray = GetRay(p);
if (ray == null)
{
return(null);
}
return(ray.PlaneIntersection(position, normal));
}
public void InitMove(Ray3D ray)
{
Vector3D t = Vector3D.CrossProduct(ray.Direction, Direction);
Vector3D n = Vector3D.CrossProduct(Direction, t);
var intersection=ray.PlaneIntersection(Origin, n);
if (!intersection.HasValue)
return;
_mouseDownPoint = intersection.Value;
_lastMousePoint = _mouseDownPoint;
originalMaterial = Material;
Fill = Brushes.Yellow;
isMoving = true;
}
public void InitMove(Ray3D ray)
{
Vector3D t = Vector3D.CrossProduct(ray.Direction, Direction);
Vector3D n = Vector3D.CrossProduct(Direction, t);
var intersection = ray.PlaneIntersection(Origin, n);
if (!intersection.HasValue)
{
return;
}
_mouseDownPoint = intersection.Value;
_lastMousePoint = _mouseDownPoint;
originalMaterial = Material;
Fill = Brushes.Yellow;
isMoving = true;
}
public Vector3D Move(Ray3D ray)
{
if (!isMoving)
{
return(new Vector3D());
}
Vector3D t = Vector3D.CrossProduct(ray.Direction, Direction);
Vector3D n = Vector3D.CrossProduct(Direction, t);
var i = ray.PlaneIntersection(Origin, n);
if (!i.HasValue)
{
return(new Vector3D());
}
Point3D mousePoint = i.Value;
double x = 0;
double y = 0;
double z = 0;
switch (Type)
{
case ManipulatorType.TranslateX:
x = mousePoint.X - _lastMousePoint.X;
break;
case ManipulatorType.TranslateY:
y = mousePoint.Y - _lastMousePoint.Y;
break;
case ManipulatorType.TranslateZ:
z = mousePoint.Z - _lastMousePoint.Z;
break;
}
_lastMousePoint = mousePoint;
var delta = new Vector3D(x, y, z);
/* TranslateTransform3D transform = this.Transform as TranslateTransform3D;
* transform.OffsetX += x;
* transform.OffsetY += y;
* transform.OffsetZ += z;*/
return(delta);
}
