extentRec.h

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/*******************************************************************************
** Copyright (c) 2000 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/
/*******************************************************************************
** $RCSfile: extentRec.h,v $ $Revision: 1.16 $ $State: Exp $
*******************************************************************************/
#ifndef extentRec_H_
#define extentRec_H_

// \file extentRec.h
// \brief Contains the DtExtentMetafileRecord class declaration.

#include "terrainDbFactory/terrainDbFactoryDefines.h"
#include "terrainDbFactory/mfRec.h"
#include "terrainCS/coordSystem.h"
#include "terrainDbFactory/terrainDefines.h"

#include <iosfwd>

//
// Extends from DtMetafileRecord to provide a way of specifying an extent in 
// a metafile record (for the creation of a terrain out of that extent).
class DT_DLL_terrainDbFactory DtExtentMetafileRecord : public DtMetafileRecord
{

public:

   DtExtentMetafileRecord();
   
   virtual ~DtExtentMetafileRecord();
   
   // copy constructor
   DtExtentMetafileRecord(const DtExtentMetafileRecord& orig);

   // assignment operator
   DtExtentMetafileRecord& operator=(const DtExtentMetafileRecord& orig);
   
   // Returns DtConfigExtentType;
   virtual DtConfigCategoryType recordCategory() const;
   
   // Read self from stream.
   virtual bool get(std::istream& stream);

   // identifies a token or passes it to the base class.
   virtual bool processToken(std::istream& stream, DtString& token);

   // identifies this record as a unique metafile record, "extent".
   virtual DtString recordTypeName() const;

   static DtMetafileRecord * create();

protected:

   // Write self to stream.
   virtual bool writeAttributes(std::ostream& stream) const;
   virtual bool getAttribute(const DtString attrName, DtString& value, unsigned index=0);
   virtual bool setToken(const DtString& token, const DtString value);

   virtual CS_Type stringToCsTypeEnum(const DtString& string) const;
   virtual DtString csTypeEnumToString(CS_Type coordsys) const;

protected:

   static const DtString theParameterCoordinateSystem;
   static const DtString theParameterSwCorner;
   static const DtString theParameterNeCorner;
   static const DtString theParameterSurfaceColor;
   static const DtString theParameterRoughness;
   static const DtString theParameterOrigin;
   static const DtString theParameterLam0;
   static const DtString theParameterPhi0;
   static const DtString theParameterPhi1;
   static const DtString theParameterPhi2;
   static const DtString theZone;
   static const DtString theTesselateX;
   static const DtString theTesselateY;
};

#endif