include/shape/shapeExporter.h

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/*******************************************************************************
** Copyright (c) 2006 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/
/*******************************************************************************
** $RCSfile: shapeExporter.h,v $ $Revision: 1.4 $ $State: Exp $
*******************************************************************************/


#ifndef SHAPEEXPORTER_H
#define SHAPEEXPORTER_H

#include <vlutil/vlString.h>
#include "shape/shapeDefines.h"

class DtTerrainDatabase;

// \file shapeExporter.h
// \brief Contains the DtShapeExporter class declaration and other related definitions/declarations.

// the DtShapeExporter calss is just a convenient container for the code that
// writes a DtTerrainDatabase to a shape file.  Currently it only writes the
// polygons to a 3D shape file. 
class DT_DLL_shape DtShapeExporter
{
public:
   DtShapeExporter();
   virtual ~DtShapeExporter();

   // writes four files using the filename prefix.  the resulting shape file
   // includes all polygons that satisfy isGround and not isCulturalFeature
   // it calls writePrj() followed by writeShpShx() followed by writeDbf().
   virtual void exportPolygons( const char* filename, DtTerrainDatabase* tdb);

protected:
   // write a projection file.  The exporter does all of its work in geodetic
   // so this file is WGS84 GEOGCS with the units as DEGREES
   virtual void writePrj();

   // writes both the main shp file and the index file
   virtual void writeShpShx();

   // writes out a Dbf file for the attributes.  currently only a ID attribute
   // is written.
   virtual void writeDbf();


protected:
   // these members are used as temporary storage during the output process.
   DtString myFilename;
    DtTerrainDatabase* myTdb;
   int myNumPolys;
};

#endif