public void Release()
{
lock (LockThis1)
{
//try
//{
// if (_preToID > 0) Proj4Wrapper.pj_free(_preToID);
//}
//catch { }
//try
//{
// if (_preFromID > 0) Proj4Wrapper.pj_free(_preFromID);
//}
//catch { }
try
{
if (_fromID != IntPtr.Zero)
{
Proj4Wrapper.pj_free(_fromID);
}
}
catch { }
try
{
if (_toID != IntPtr.Zero)
{
Proj4Wrapper.pj_free(_toID);
}
}
catch { }
_fromSRef = _toSRef = null;
_fromID = _toID = IntPtr.Zero;
//_preFrom = _preTo = -1;
}
}
public void SetSpatialReferences(ISpatialReference from, ISpatialReference to)
{
if (from == null)
{
lock (LockThis1)
{
try
{
if (_fromID != IntPtr.Zero)
{
Proj4Wrapper.pj_free(_fromID);
}
}
catch { }
_fromID = IntPtr.Zero;
_fromSRef = null;
}
}
if (to == null)
{
lock (LockThis1)
{
try
{
if (_toID != IntPtr.Zero)
{
Proj4Wrapper.pj_free(_toID);
}
}
catch { }
_toID = IntPtr.Zero;
_toSRef = null;
}
}
if ((from != null && from.Datum == null) && (to != null && to.Datum != null))
{
ISpatialReference toSRef = (ISpatialReference)to.Clone();
toSRef.Datum = null;
this.ToSpatialReference = toSRef;
this.FromSpatialReference = from;
}
else if ((from != null && from.Datum != null) && (to != null && to.Datum == null))
{
this.ToSpatialReference = to;
ISpatialReference fromSRef = (ISpatialReference)from.Clone();
fromSRef.Datum = null;
this.FromSpatialReference = fromSRef;
}
else
{
this.ToSpatialReference = to;
this.FromSpatialReference = from;
}
}
