public void ChangeMap(int way)
{
converter.ClearPathsTrail();
if (converter.CurrentControl == ProjectionType.Mercator && way == -1)
{
converter.CurrentControl = ProjectionType.AEQD;
}
else if (converter.CurrentControl == ProjectionType.AEQD && way == 1)
{
converter.CurrentControl = ProjectionType.Mercator;
}
else
{
converter.CurrentControl = (ProjectionType)((int)converter.CurrentControl + way);
}
}