include/shape/shapeVectorReader.h

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/*********************************************************************
** Copyright (c) 1998 MAK Technologies, Inc.
** All rights reserved.
*********************************************************************/
/*********************************************************************
** $RCSfile: shapeVectorReader.h,v $ $Revision: 1.12 $ $State: Exp $
*********************************************************************/
#ifndef shapeVectorReader_H_
#define shapeVectorReader_H_

#include "shape/shapeDefines.h"
#include "gdb/vectorDataReader.h"
#include "geometry/point.h"
#include <vlutil/vlUtil.h>

class DtList;
class DtMetafileRecord;
class DtFilename;
class DtSurfaceManager;
class DtVectorNetwork;
class DtSpecificationManager;
class DtVectorDataInitializer;


class DtShapeVectorInitializer;

//
// Instances of DtShapeVectorReader are a list of DtDtedCells.
class DT_DLL_shape DtShapeVectorReader : public DtVectorDataReader
{

public:
   // constructor
   DtShapeVectorReader();

   // destructor
   virtual ~DtShapeVectorReader();

   // Conventional version, used by TDBTool and VR-Forces to load
   // vector network.
   virtual bool importVectorData(const DtFilename& path, 
                                 DtTerrainDatabase* terrain, 
                                 DtVectorDataInitializer* initializer);

   // Alternative version, to be used when loading vector data for
   // for 3D visualization.  Does not crop to terrain extents or 
   // planarize data.  Does create specification attributes for every
   // field available in the .dbf file.
   virtual bool importVectorData(const DtFilename& shapefile, 
                                 DtTerrainDatabase& terrain);

   // Returns "shape"
   virtual DtString dataType();

   virtual DtVectorNetwork* localVectorNetwork();

   virtual DtPoint &origin();

   static DtVectorDataReader* create();

   // Returns true if Shapefile (.shp) contains vector data.  Only the
   // following data types may be present in the file for this to be true:
   // Point
   // PolyLine
   // Polygon
   // Multipoint
   static bool isShapeVectorDataFile(const DtFilename& filename);

protected:
   
   virtual bool importFeatures(DtVectorNetwork* vectorNetwork, 
                               const DtFilename& path, 
                               const DtShapeVectorInitializer* i);

protected:

   DtPoint                 myOriginToSubstract;
   DtVectorNetwork*        myLocalNetwork; 

   static const unsigned int theNumColorGradations;

};

#endif