include/shape/shapeTerrainFile.h

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/*******************************************************************************
** Copyright (c) 2003 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/
/*******************************************************************************
** $RCSfile: shapeTerrainFile.h,v $ $Revision: 1.13 $ $State: Exp $
*******************************************************************************/

#ifndef shapeTerrainFile_H_
#define shapeTerrainFile_H_

#include "shape/shapeDefines.h"
#include "shape/shapefile.h"
#include <vlutil/vlFilename.h>

class DtShapeEntry;
class DtShapeReader;
class DtShapeVectorReader;
class DtShapeInitializer;
class DtGroup;

//
// DtShapeTerrainFile reads in elevation data from a shape file
//
class DT_DLL_shape DtShapeTerrainFile : public DtShapefile
{

public:

   // Constructor.
   DtShapeTerrainFile(const DtShapeInitializer* i);

   // Destructor
   virtual ~DtShapeTerrainFile();

   // Sets myMaxHigh and myMinHigh for each DtShapeRecord in myList
   virtual bool load(const DtFilename& path, const DtShapeEntry* entry);
   
   // If the .map file is setup to read elevations from a dBASE field, this
   // function is called by load to open the .dbf file and pull in each record.
   virtual bool loadElevationsFromFile();

   // Sets myReader, and calls importPolys if the initializer's terrain type is 
   // set to SHAPETERRAIN_POLY.
   virtual DtGroup* import(DtShapeReader* reader);

   // Returns false
   virtual bool importFeatures(DtShapeVectorReader* reader);

protected:
   
   // Adds the polygons from each DtShapeRecord in myList to the gdb.
   virtual DtGroup* importPolys();

public:
   
   double myMaxHigh;
   double myMinHigh;
};

#endif