// Copyright 2005, 2006 - Morten Nielsen (www.iter.dk)
//
// This file is part of SharpMap.
// SharpMap is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// SharpMap is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
// You should have received a copy of the GNU Lesser General Public License
// along with SharpMap; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
namespace GeoAPI.CoordinateSystems{
/// <summary>
/// Orientation of axis. Some coordinate systems use non-standard orientations.
/// For example, the first axis in South African grids usually points West,
/// instead of East. This information is obviously relevant for algorithms
/// converting South African grid coordinates into Lat/Long.
/// </summary>
public enum AxisOrientationEnum : short
{
/// <summary>
/// Unknown or unspecified axis orientation. This can be used for local or fitted coordinate systems.
/// </summary>
Other = 0,
/// <summary>
/// Increasing ordinates values go North. This is usually used for Grid Y coordinates and Latitude.
/// </summary>
North = 1,
/// <summary>
/// Increasing ordinates values go South. This is rarely used.
/// </summary>
South = 2,
/// <summary>
/// Increasing ordinates values go East. This is rarely used.
/// </summary>
East = 3,
/// <summary>
/// Increasing ordinates values go West. This is usually used for Grid X coordinates and Longitude.
/// </summary>
West = 4,
/// <summary>
/// Increasing ordinates values go up. This is used for vertical coordinate systems.
/// </summary>
Up = 5,
/// <summary>
/// Increasing ordinates values go down. This is used for vertical coordinate systems.
/// </summary>
Down = 6
}
}
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