//
// ogis-struct.idl
//
// Structure definitions (common and Well-Known) from the OpenGIS
// Simple Features Specification for CORBA.
//
//
// Taken from the PDF document _OpenGIS(R) Simple Features
// Specification For CORBA_, Revision 1.1, dated June 2, 1999.
//
// Separated major sections into separate files in order to support
// greater flexibility in the use of the module.
//
// The aforementioned specification contains the following copyright
// claims:
//
// Copyright 1997, 1998, 1999 Bentley Systems, Inc.
// Copyright 1997, 1998, 1999 Environmental Systems Research Institute
// Copyright 1997, 1998, 1999 Genasys II, Inc.
// Copyright 1997, 1998, 1999 Oracle Corporation
// Copyright 1997, 1998, 1999 University of California, Los Angeles.
// Copyright 1997, 1998, 1999 Sun Microsystems, Inc.
//
// See the aforementioned specification for disclaimers and more
// information.
//
//
// Chuck Taylor, September 20, 2005.
//
//


#ifndef _OGIS_STRUCT_IDL_
#define _OGIS_STRUCT_IDL_


#include <orb.idl>


module OGIS {


//----------------------------------------------------------------------
// Forward declarations of interfaces
//----------------------------------------------------------------------

interface FeatureType;


//----------------------------------------------------------------------
// Common structures
//----------------------------------------------------------------------

typedef string Istring;
typedef sequence<octet> OctetSeq;


struct Decimal {
	long precision;
	long scale;
	OctetSeq value;
};


// Structure to describe name-value pairs
struct NVPair {
	Istring name; // name is a string
	any value; // value is an ’any’ type
};

typedef sequence <NVPair> NVPairSeq;


struct PropertyDef {
	Istring name;
	CORBA::TypeCode type;
	boolean required;
};

typedef sequence<PropertyDef> PropertyDefSeq;


struct FeatureData {
	FeatureType type;
	NVPairSeq props;
};

typedef sequence<FeatureData> FeatureDataSeq;


//----------------------------------------------------------------------
// Well-known Structures
//----------------------------------------------------------------------


struct WKSPoint {
	double x;
	double y;
};


typedef sequence<WKSPoint> WKSPointSeq;
typedef sequence<WKSPoint> WKSLineString;
typedef sequence<WKSLineString> WKSLineStringSeq;
typedef sequence<WKSPoint> WKSLinearRing;
typedef sequence<WKSLinearRing> WKSLinearRingSeq;


struct WKSLinearPolygon {
	WKSLinearRing externalBoundary;
	WKSLinearRingSeq internalBoundaries;
};


typedef sequence <WKSLinearPolygon> WKSLinearPolygonSeq;


enum WKSType {
	WKSPointType,WKSMultiPointType, WKSLineStringType,
	WKSMultiLineStringType, WKSLinearRingType, WKSLinearPolygonType,
	WKSMultiLinearPolygonType, WKSCollectionType
};


union WKSGeometry // near-equivalent to the ’CoordinateGeometry of the
                  // spec’

	switch (WKSType) {

		case WKSPointType:
			WKSPoint point;

		case WKSMultiPointType:
			WKSPointSeq multi_point;

		case WKSLineStringType:
			WKSLineString line_string;

		case WKSMultiLineStringType:
			WKSLineStringSeq multi_line_string;

		case WKSLinearRingType:
			WKSLinearRing linear_ring;

		case WKSLinearPolygonType:
			WKSLinearPolygon linear_polygon;

		case WKSMultiLinearPolygonType:
			WKSLinearPolygonSeq multi_linear_polygon;

		case WKSCollectionType:
			sequence<WKSGeometry> collection;
};


struct Envelope {
	WKSPoint minm;
	WKSPoint maxm;
};


}; // End OGIS Module



#endif  // _OGIS_STRUCT_IDL_