GetNearest() public method

Gets the point on the ray that is nearest the specified point.
public GetNearest ( System.Windows.Media.Media3D.Point3D p3 ) : System.Windows.Media.Media3D.Point3D
p3 System.Windows.Media.Media3D.Point3D /// The point. ///
return System.Windows.Media.Media3D.Point3D
Ray3D Class Documentation
Exemplo n.º 1
0
        /// <summary>
        /// Gets the nearest point on the translation axis.
        /// </summary>
        /// <param name="position">
        /// The position (in screen coordinates).
        /// </param>
        /// <param name="hitPlaneOrigin">
        /// The hit plane origin (world coordinate system).
        /// </param>
        /// <param name="hitPlaneNormal">
        /// The hit plane normal (world coordinate system).
        /// </param>
        /// <returns>
        /// The nearest point (world coordinates) or null if no point could be found.
        /// </returns>
        private Point3D?GetNearestPoint(Point position, Point3D hitPlaneOrigin, Vector3D hitPlaneNormal)
        {
            var hpp = this.GetHitPlanePoint(position, hitPlaneOrigin, hitPlaneNormal);

            if (hpp == null)
            {
                return(null);
            }

            var ray = new Ray3D(this.ToWorld(this.Position), this.ToWorld(this.Direction));

            return(ray.GetNearest(hpp.Value));
        }
Exemplo n.º 2
0
        /// <summary>
        /// Gets the nearest point on the translation axis.
        /// </summary>
        /// <param name="position">
        /// The position (in screen coordinates).
        /// </param>
        /// <param name="hitPlaneOrigin">
        /// The hit plane origin (world coordinate system).
        /// </param>
        /// <param name="hitPlaneNormal">
        /// The hit plane normal (world coordinate system).
        /// </param>
        /// <returns>
        /// The nearest point (world coordinates) or null if no point could be found.
        /// </returns>
        private Point3D? GetNearestPoint(Point position, Point3D hitPlaneOrigin, Vector3D hitPlaneNormal)
        {
            var hpp = this.GetHitPlanePoint(position, hitPlaneOrigin, hitPlaneNormal);
            if (hpp == null)
            {
                return null;
            }

            var ray = new Ray3D(this.ToWorld(this.Position), this.ToWorld(this.Direction));
            return ray.GetNearest(hpp.Value);
        }