/// <summary>
/// 构造函数，以两点初始化一个线段
/// </summary>
public MercatorSegment(MercatorPoint point1, MercatorPoint point2)
{
m_point1 = point1;
m_point2 = point2;
MaxY = Math.Max(m_point1.Y, m_point2.Y);
MinY = Math.Min(m_point1.Y, m_point2.Y);
MaxX = Math.Max(m_point1.X, m_point2.X);
MinX = Math.Min(m_point1.X, m_point2.X);
A = m_point1.Y - m_point2.Y;
B = m_point2.X - m_point1.X;
C = (m_point1.X * (m_point2.Y - m_point1.Y)) + (m_point1.Y * (m_point1.X - m_point2.X));
}
/// <summary>
/// 墨卡托坐標轉經緯度坐標
/// </summary>
/// <param name="point"></param>
/// <returns>经度, 纬度</returns>
public Coordinate MercatorToCoordinate(MercatorPoint point)
{
double[] mc = null;
var abs = Math.Abs(point.Y);
for (var i = 0; i < _mcband.Length; i++)
{
if (abs >= _mcband[i])
{
mc = _mc2Ll[i];
break;
}
}
var location = Convertor(point.X, point.Y, mc);
return(new Coordinate
{
Longitude = location[0],
Latitude = location[1]
});
}
