public CoordinatePlane AddMarkers(CoordinateMarkerX mx, CoordinateMarkerY my)
{
entities.Add(mx);
entities.Add(my);
return(this);
}
public void AddMarker(CoordinateMarkerX mx, CoordinateMarkerY my)
{
entities.Add(mx);
entities.Add(my);
}
public CoordinatePlane AddMarkerX(CoordinateMarkerX m)
{
entities.Add(m);
return(this);
}
public void AddMarkerX(CoordinateMarkerX m) => entities.Add(m);