Line data    Source code

       1             : /******************************************************************************
       2             :  *
       3             :  * Purpose: Support for reading and manipulating PCIDSK Ephemeris Segments
       4             :  *
       5             :  ******************************************************************************
       6             :  * Copyright (c) 2009
       7             :  * PCI Geomatics, 90 Allstate Parkway, Markham, Ontario, Canada.
       8             :  *
       9             :  * SPDX-License-Identifier: MIT
      10             :  ****************************************************************************/
      11             : #ifndef INCLUDE_PCIDSK_SEGMENT_PCIDSKEPHEMERIS_SEG_H
      12             : #define INCLUDE_PCIDSK_SEGMENT_PCIDSKEPHEMERIS_SEG_H
      13             : 
      14             : #include "pcidsk_ephemeris.h"
      15             : #include "segment/cpcidsksegment.h"
      16             : 
      17             : namespace PCIDSK {
      18             :     class PCIDSKFile;
      19             : 
      20             :     class CPCIDSKEphemerisSegment : public PCIDSKEphemerisSegment,
      21             :                                     public CPCIDSKSegment
      22             :     {
      23             :     public:
      24             :         CPCIDSKEphemerisSegment(PCIDSKFile *file, int segment,const char *segment_pointer,bool bLoad=true);
      25             :         ~CPCIDSKEphemerisSegment();
      26             : 
      27           0 :         const EphemerisSeg_t& GetEphemeris() const override
      28             :         {
      29           0 :             return *mpoEphemeris;
      30             :         }
      31           0 :         void SetEphemeris(const EphemerisSeg_t& oEph) override
      32             :         {
      33           0 :             if(mpoEphemeris)
      34             :             {
      35           0 :                 delete mpoEphemeris;
      36             :             }
      37           0 :             mpoEphemeris = new EphemerisSeg_t(oEph);
      38           0 :             mbModified = true;
      39             : 
      40             :             //we set loaded to true to trigger the Write during synchronize
      41             :             //else if the segment has just been created it will not be saved.
      42           0 :             this->loaded_ = true;
      43           0 :         }
      44             : 
      45             :         //synchronize the segment on disk.
      46             :         void Synchronize() override;
      47             :     private:
      48             : 
      49             :         // Helper housekeeping functions
      50             :         void Load();
      51             :         void Write();
      52             : 
      53             :         EphemerisSeg_t* mpoEphemeris;
      54             :     //functions to read/write binary information
      55             :     protected:
      56             :         // The raw segment data
      57             :         PCIDSKBuffer seg_data;
      58             :         bool loaded_;
      59             :         bool mbModified;
      60             :         void ReadAvhrrEphemerisSegment(int,
      61             :                                        EphemerisSeg_t *);
      62             :         void ReadAvhrrScanlineRecord(int nPos,
      63             :                                      AvhrrLine_t *psScanlineRecord);
      64             :         int  ReadAvhrrInt32(unsigned char* pbyBuf);
      65             :         void WriteAvhrrEphemerisSegment(int , EphemerisSeg_t *);
      66             :         void WriteAvhrrScanlineRecord(AvhrrLine_t *psScanlineRecord,
      67             :                                       int nPos);
      68             :         void WriteAvhrrInt32(int nValue, unsigned char* pbyBuf);
      69             :         EphemerisSeg_t *BinaryToEphemeris( int nStartBlock );
      70             :         void EphemerisToBinary( EphemerisSeg_t *, int );
      71             :         double ConvertDeg(double degree, int mode);
      72             :     };
      73             : }
      74             : 
      75             : #endif // INCLUDE_PCIDSK_SEGMENT_PCIDSKEPHEMERIS_SEG_H