CubeIO.h

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//_Title CubeIO.h Definition of basic ISIS support structure
//
//_Descr ISIS3 file/functionality definition.
//
//_Hist Jul 24 2004 Kris Becker, USGS
//_Version: $Id: CubeIO.h,v 1.3 2009/07/30 00:15:37 kbecker Exp $
//_End
#if !defined(CubeIO_h)
#define CubeIO_h
#include <string>
#include "Idl.h"
#include "IdlVariable.h"
#include "IdlVarTypes.h"
#include "CubeIoPolicy.h"

namespace ISISDLM {

 // Define the supported I/O engines here
 typedef CubeIoPolicy<double,        IDL::IdlDouble, StdIO> DoubleIO;
 typedef CubeIoPolicy<unsigned char, IDL::IdlByte,   RawIO> ByteIO;
 typedef CubeIoPolicy<short int,     IDL::IdlInt2,   RawIO> WordIO;
 typedef CubeIoPolicy<float,         IDL::IdlFloat,  RawIO> FloatIO;

template <class T>
 void FetchData(T &reader, Isis::Cube &cube, const IDL::ArrayDims &dims, 
                const std::string &vname, IDL::IdlVariable &vData) {

//  Allocate the reader
  typedef typename T::DataType DTYPE;
  IDL::IdlVarType vtype = static_cast<IDL::IdlVarType> (reader.getVarType());

// Get either a 2 or three dimensional array
  if (dims.Dim(2) == 1) {
    vData = IDL::IdlVariable(vname, vtype,
                             IDL::ArrayDims(dims.Dim(0),dims.Dim(1))); 
  }
  else {
    vData = IDL::IdlVariable(vname, vtype, dims);
  }

//  Get the variable reference and read the data.  Note that it matters
//  not that we are using a 3 dimensional TNT injection buffer
  DTYPE *dref;
  dref = reinterpret_cast<DTYPE *> (vData.vRef(0));
  TNT::Array3D<DTYPE> data(dims.Dim(2), dims.Dim(1), dims.Dim(0), dref); 
  reader.Read(cube, data); 
  return;
}


template <class T>
 void PutData(T &writer, Isis::Cube &cube, const IDL::ArrayDims &dims, 
              IDL::IdlVariable &vData) {

//  Allocate the reader
  typedef typename T::DataType DTYPE;

//  Get the variable reference and read the data.  Note that it matters
//  not that we are using a 3 dimensional TNT injection buffer
  DTYPE *dref;
  dref = reinterpret_cast<DTYPE *> (vData.vRef(0));
  TNT::Array3D<DTYPE> data(dims.Dim(2), dims.Dim(1), dims.Dim(0), dref); 
  writer.Write(data, cube); 
  return;
}


 }
 #endif