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;
}
}
private object Transform2D_(object geometry, IntPtr from, IntPtr to, bool fromProjective, bool toProjektive)
{
if (geometry == null)
{
return(null);
}
if (from == IntPtr.Zero || to == IntPtr.Zero)
{
return(geometry);
}
if (geometry is PointCollection)
{
PointCollection pColl = (PointCollection)geometry;
int pointCount = pColl.PointCount;
if (pointCount == 0)
{
return(geometry);
}
IntPtr buffer = Marshal.AllocHGlobal(pointCount * 2 * sizeof(double));
lock (LockThis1)
{
try
{
IntPtr xPtr = IntPtr.Zero, yPtr = IntPtr.Zero;
unsafe
{
double *b = (double *)buffer;
for (int i = 0; i < pointCount; i++)
{
b[i] = pColl[i].X;
b[pointCount + i] = pColl[i].Y;
}
if (!fromProjective)
{
ToRad(buffer, pointCount * 2);
}
xPtr = (IntPtr)(&b[0]);
yPtr = (IntPtr)(&b[pointCount]);
}
if (from != IntPtr.Zero && to != IntPtr.Zero)
{
//if (preTo > 0)
//{
// Proj4Wrapper.pj_transform(from, preTo, pointCount, 0, xPtr, yPtr, (IntPtr)0);
// Proj4Wrapper.pj_transform(preTo, to, pointCount, 0, xPtr, yPtr, (IntPtr)0);
//}
//else
//{
Proj4Wrapper.pj_transform(from, to, pointCount, 0, xPtr, yPtr, IntPtr.Zero);
//}
}
if (!toProjektive)
{
ToDeg(buffer, pointCount * 2);
}
IPointCollection target = null;
if (pColl is IRing)
{
target = new Ring();
}
else if (pColl is IPath)
{
target = new Path();
}
else if (pColl is IMultiPoint)
{
target = new MultiPoint();
}
else
{
target = new PointCollection();
}
unsafe
{
double *b = (double *)buffer;
for (int i = 0; i < pointCount; i++)
{
target.AddPoint(new Point(b[i], b[pointCount + i]));
}
return(target);
}
}
finally
{
Marshal.FreeHGlobal(buffer);
}
}
//double [] x;
//double [] y;
//((PointCollection)geometry).getXY(out x,out y);
//if (!fromProjective) ToRad(x, y);
//if(from>0 && to>0)
// Proj4Wrapper.pj_transform(from,to,x.Length,0,x,y,null);
//if (!toProjektive) ToDeg(x, y);
//if(geometry is Ring)
//{
// Ring ring=new Ring();
// ring.setXYZ(x,y,null);
// return ring;
//}
//if(geometry is Path)
//{
// Path path=new Path();
// path.setXYZ(x,y,null);
// return path;
//}
//if (geometry is MultiPoint)
//{
// MultiPoint multiPoint = new MultiPoint();
// multiPoint.setXYZ(x, y, null);
// return multiPoint;
//}
//return new PointCollection(x,y,null);
}
if (geometry is IPoint)
{
double[] x = { ((IPoint)geometry).X };
double[] y = { ((IPoint)geometry).Y };
if (!fromProjective)
{
ToRad(x, y);
}
lock (LockThis1)
{
if (from != IntPtr.Zero && to != IntPtr.Zero)
{
unsafe
{
fixed(double *xx = x)
fixed(double *yy = y)
{
IntPtr xPtr = (IntPtr)(xx);
IntPtr yPtr = (IntPtr)(yy);
//if (preTo > 0)
//{
// Proj4Wrapper.pj_transform(from, preTo, x.Length, 0, xPtr, yPtr, (IntPtr)0);
// Proj4Wrapper.pj_transform(preTo, to, x.Length, 0, xPtr, yPtr, (IntPtr)0);
//}
//else
//{
Proj4Wrapper.pj_transform(from, to, x.Length, 0, xPtr, yPtr, IntPtr.Zero);
//}
}
}
}
}
if (!toProjektive)
{
ToDeg(x, y);
}
return(new Point(x[0], y[0]));
}
if (geometry is IEnvelope)
{
return(Transform2D_(((IEnvelope)geometry).ToPolygon(10), from, to, fromProjective, toProjektive));
}
if (geometry is IPolyline)
{
int count = ((IPolyline)geometry).PathCount;
IPolyline polyline = new Polyline();
for (int i = 0; i < count; i++)
{
polyline.AddPath((IPath)Transform2D_(((IPolyline)geometry)[i], from, to, fromProjective, toProjektive));
}
return(polyline);
}
if (geometry is IPolygon)
{
int count = ((IPolygon)geometry).RingCount;
IPolygon polygon = new Polygon();
for (int i = 0; i < count; i++)
{
polygon.AddRing((IRing)Transform2D_(((IPolygon)geometry)[i], from, to, fromProjective, toProjektive));
}
return(polygon);
}
if (geometry is IAggregateGeometry)
{
int count = ((IAggregateGeometry)geometry).GeometryCount;
IAggregateGeometry aGeom = new AggregateGeometry();
for (int i = 0; i < count; i++)
{
aGeom.AddGeometry((IGeometry)Transform2D_(((IAggregateGeometry)geometry)[i], from, to, fromProjective, toProjektive));
}
return(aGeom);
}
return(null);
}
