| public PlaneIntersection ( System.Windows.Media.Media3D.Point3D position, System.Windows.Media.Media3D.Vector3D normal ) : Point3D? | ||
| position | System.Windows.Media.Media3D.Point3D | /// A point on the plane. /// |
| normal | System.Windows.Media.Media3D.Vector3D | /// The normal of the plane. /// |
| return | Point3D? | |
/// <summary>
/// Unproject a point from the screen (2D) to a point on plane (3D)
/// </summary>
/// <param name="p">
/// The 2D point.
/// </param>
/// <param name="position">
/// plane position
/// </param>
/// <param name="normal">
/// plane normal
/// </param>
/// <returns>
/// A 3D point.
/// </returns>
public Point3D?UnProject(Point p, Point3D position, Vector3D normal)
{
Ray3D ray = this.GetRay(p);
if (ray == null)
{
return(null);
}
return(ray.PlaneIntersection(position, normal));
}
/// <summary>
/// Un projects a point from the screen (2D) to a point on plane (3D)
/// </summary>
/// <param name="p">
/// The 2D point.
/// </param>
/// <param name="position">
/// A point on the plane .
/// </param>
/// <param name="normal">
/// The plane normal.
/// </param>
/// <returns>
/// A 3D point.
/// </returns>
public Point3D? UnProject(Point p, Point3D position, Vector3D normal)
{
Ray3D ray = this.GetRay(p);
if (ray == null)
{
return null;
}
Point3D i;
return ray.PlaneIntersection(position, normal, out i) ? (Point3D?)i : null;
}
/// <summary>
/// Unproject a point from the screen (2D) to a point on plane (3D)
/// </summary>
/// <param name="viewport">
/// The viewport.
/// </param>
/// <param name="p">
/// The 2D point.
/// </param>
/// <param name="position">
/// plane position
/// </param>
/// <param name="normal">
/// plane normal
/// </param>
/// <returns>
/// A 3D point.
/// </returns>
/// <remarks>
/// Map window coordinates to object coordinates like gluUnProject.
/// </remarks>
public static Point3D?UnProject(Viewport3D viewport, Point p, Point3D position, Vector3D normal)
{
Ray3D ray = GetRay(viewport, p);
if (ray == null)
{
return(null);
}
return(ray.PlaneIntersection(position, normal));
}
