private static void AddPoint(this OSGeo.OGR.Geometry geometry, double x, double y, double z = double.NaN, double m = double.NaN)
{
if (geometry != null)
{
if (double.IsNaN(z))
{
if (double.IsNaN(m))
{
geometry.AddPoint_2D(x, y);
}
else
{
geometry.AddPointM(x, y, m);
}
}
else
{
if (double.IsNaN(m))
{
geometry.AddPoint(x, y, z);
}
else
{
geometry.AddPointZM(x, y, z, m);
}
}
}
}
