/// <summary>
/// This overload returns a point on the shape that is closest to the point passed in
/// </summary>
public Point3D?CastRay(Point3D point)
{
Point3D?retVal = null;
switch (_shape)
{
case ShapeType.Line:
#region Line
retVal = Math3D.GetClosestPoint_Line_Point(_point, _direction, point);
#endregion
break;
case ShapeType.Lines:
#region Lines
retVal = CastRay_LinesCircles(_lines, null, point);
#endregion
break;
case ShapeType.Plane:
#region Plane
retVal = Math3D.GetClosestPoint_Plane_Point(_plane, point);
#endregion
break;
case ShapeType.Circle:
#region Circle
retVal = Math3D.GetClosestPoint_Circle_Point(_plane, _point, _radius, point);
#endregion
break;
case ShapeType.Circles:
#region Circles
retVal = CastRay_LinesCircles(null, _circles, point);
#endregion
break;
case ShapeType.LinesCircles:
#region LinesCircles
retVal = CastRay_LinesCircles(_lines, _circles, point);
#endregion
break;
case ShapeType.Cylinder:
#region Cylinder
retVal = Math3D.GetClosestPoint_Cylinder_Point(_point, _direction, _radius, point);
#endregion
break;
case ShapeType.Sphere:
#region Sphere
retVal = Math3D.GetClosestPoint_Sphere_Point(_point, _radius, point);
#endregion
break;
case ShapeType.Mesh:
throw new ApplicationException("finish this");
case ShapeType.None:
retVal = null;
break;
default:
throw new ApplicationException("Unknown ShapeType: " + _shape.ToString());
}
return(retVal);
}