/usr/include/casacore/images/Regions/WCIntersection.h is in casacore-dev 2.2.0-2.
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//# Copyright (C) 1998
//# Associated Universities, Inc. Washington DC, USA.
//#
//# This library is free software; you can redistribute it and/or modify it
//# under the terms of the GNU Library General Public License as published by
//# the Free Software Foundation; either version 2 of the License, or (at your
//# option) any later version.
//#
//# This library is distributed in the hope that it will be useful, but WITHOUT
//# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
//# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
//# License for more details.
//#
//# You should have received a copy of the GNU Library General Public License
//# along with this library; if not, write to the Free Software Foundation,
//# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
//#
//# Correspondence concerning AIPS++ should be addressed as follows:
//# Internet email: aips2-request@nrao.edu.
//# Postal address: AIPS++ Project Office
//# National Radio Astronomy Observatory
//# 520 Edgemont Road
//# Charlottesville, VA 22903-2475 USA
//#
//# $Id$
#ifndef IMAGES_WCINTERSECTION_H
#define IMAGES_WCINTERSECTION_H
//# Includes
#include <casacore/casa/aips.h>
#include <casacore/images/Regions/WCCompound.h>
namespace casacore { //# NAMESPACE CASACORE - BEGIN
// <summary>
// Make the intersection of 2 or more image regions.
// </summary>
// <use visibility=export>
// <reviewed reviewer="" date="" tests="">
// </reviewed>
// <prerequisite>
// <li> <linkto class=WCCompound>WCCompound</linkto>
// </prerequisite>
// <synopsis>
// The WCIntersection class is a specialization of class
// <linkto class=WCCompound>WCCompound</linkto>.
// It makes it possible to take the intersection of 2 or more image regions.
// Note that only world coordinate regions can be used in a compound,
// thus an LCSlicer object is not allowed in an intersection.
// <p>
// The intersection of regions is the collection of the pixels
// masked-on in all regions.
// <p>
// The regions in a intersection can have different axes and dimensionalities.
// The axes and dimensionality of a intersection are determined by the
// collection of all different axes in its regions. Each individual region
// will be auto-extended along the axes not being part of the region.
// E.g. one can define a WCBox with axis RA and another WCBox with
// axis DEC. The intersection will be 2-dim with axes RA and DEC. The first
// box will be auto-extended to cover the DEC axis, which results
// in a 2-dim box with its DEC axis the length of the image's DEC axis.
// Similarly the second box will be auto-extended to cover the RA axis.
// </synopsis>
// <example>
// <srcblock>
// </srcblock>
// </example>
//# <todo asof="1997/11/11">
//# <li>
//# </todo>
class WCIntersection: public WCCompound
{
public:
// Construct the intersection of one or more image regions.
// The image regions have to contain WCRegion objects, otherwise an
// exception is thrown.
// <group>
WCIntersection (const ImageRegion& region1, const ImageRegion& region2);
WCIntersection (const ImageRegion* region1,
const ImageRegion* region2 = 0,
const ImageRegion* region3 = 0,
const ImageRegion* region4 = 0,
const ImageRegion* region5 = 0,
const ImageRegion* region6 = 0,
const ImageRegion* region7 = 0,
const ImageRegion* region8 = 0,
const ImageRegion* region9 = 0,
const ImageRegion* region10 = 0);
WCIntersection (const PtrBlock<const ImageRegion*>& regions);
// </group>
// Construct from multiple regions given as a Block.
// When <src>takeOver</src> is True, the destructor will delete the
// given regions. Otherwise a copy of the regions is made.
WCIntersection (Bool takeOver, const PtrBlock<const WCRegion*>& regions);
// Copy constructor (copy semantics).
WCIntersection (const WCIntersection& other);
virtual ~WCIntersection();
// Assignment (copy semantics).
WCIntersection& operator= (const WCIntersection& other);
// Comparison
virtual Bool operator== (const WCRegion& other) const;
// Make a copy of the derived object.
virtual WCRegion* cloneRegion() const;
// Get the class name (to store in the record).
static String className();
// Get the region type. Returns className()
virtual String type() const;
// Convert the (derived) object to a record.
virtual TableRecord toRecord (const String& tableName) const;
// Convert correct object from a record.
static WCIntersection* fromRecord (const TableRecord&,
const String& tableName);
protected:
// Convert to an LCRegion using the given coordinate system and shape.
// pixelAxesMap(i) gives the pixel axis in cSys of axes <src>i</src>
// in the axesDesc.
virtual LCRegion* doToLCRegion (const CoordinateSystem& cSys,
const IPosition& shape,
const IPosition& pixelAxesMap,
const IPosition& outOrder) const;
};
} //# NAMESPACE CASACORE - END
#endif
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