/// <summary>
/// Get a SqlGeography instance with same
/// information as provided WebPolygon.
/// </summary>
/// <param name="polygon">This polygon.</param>
/// <returns>
/// A SqlGeography instance with same
/// information as provided WebPolygon.
/// </returns>
public static SqlGeography GetGeography(this WebPolygon polygon)
{
Boolean isFirstLinearRing;
String comma;
StringBuilder reverseWkt;
try
{
return(SqlGeography.Parse(new SqlString(polygon.GetWkt())));
}
catch (Exception)
{
}
try
{
// Try with points in reverse order.
reverseWkt = new StringBuilder("POLYGON()");
if (polygon.IsNotNull() &&
polygon.LinearRings.IsNotEmpty())
{
isFirstLinearRing = true;
foreach (WebLinearRing linearRing in polygon.LinearRings)
{
if (linearRing.Points.IsNotEmpty())
{
if (isFirstLinearRing)
{
isFirstLinearRing = false;
reverseWkt.Insert(8, "()");
}
else
{
reverseWkt.Insert(8, "(), ");
}
comma = String.Empty;
foreach (WebPoint point in linearRing.Points)
{
reverseWkt.Insert(9, point.X.WebToStringR().Replace(",", ".") + " " + (point.Y.WebToStringR().Replace(",", ".")) + comma);
comma = ", ";
}
}
}
}
return(SqlGeography.Parse(new SqlString(reverseWkt.ToString())));
}
catch (Exception)
{
}
return(null);
}
/// <summary>
/// Check that data is valid.
/// </summary>
/// <param name="polygon">The polygon.</param>
public static void CheckData(this WebPolygon polygon)
{
if (polygon.IsNotNull())
{
polygon.LinearRings.CheckNotEmpty("LinearRings");
foreach (WebLinearRing linearRing in polygon.LinearRings)
{
linearRing.CheckData();
}
}
}