/src/gdal/frmts/envisat/adsrange.hpp
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1  |  | /******************************************************************************  | 
2  |  |  * Project:  APP ENVISAT Support  | 
3  |  |  * Purpose:  Detect range of ADS records matching the MDS records  | 
4  |  |  * Author:   Martin Paces, martin.paces@eox.at  | 
5  |  |  *  | 
6  |  |  ******************************************************************************  | 
7  |  |  * Copyright (c) 2013, EOX IT Services, GmbH  | 
8  |  |  *  | 
9  |  |  * SPDX-License-Identifier: MIT  | 
10  |  |  *****************************************************************************/  | 
11  |  |  | 
12  |  | #ifndef adsrange_hpp  | 
13  |  | #define adsrange_hpp  | 
14  |  |  | 
15  |  | #include "cpl_string.h"  | 
16  |  |  | 
17  |  | CPL_C_START  | 
18  |  | #include "EnvisatFile.h"  | 
19  |  | CPL_C_END  | 
20  |  | #include "records.h"  | 
21  |  |  | 
22  |  | #include "timedelta.hpp"  | 
23  |  |  | 
24  |  | /* -------------------------------------------------------------------- */  | 
25  |  | /*  | 
26  |  |  * class ADSRange  | 
27  |  |  *  | 
28  |  |  * Range of ADS record matching the range of the MDS records.  | 
29  |  |  *  | 
30  |  |  */  | 
31  |  |  | 
32  |  | class ADSRange  | 
33  |  | { | 
34  |  |   protected:  | 
35  |  |     int idx_first; /* index of the first matched ADSR */  | 
36  |  |     int idx_last;  /* index of the last matched ADSR */  | 
37  |  |     int off_first; /* num. of lines from 1st matched ADSR to 1st MDSR */  | 
38  |  |     int off_last;  /* num. of lines from last MDSR to last matched ADSR*/  | 
39  |  |  | 
40  |  |     TimeDelta mjd_first;   /* MDJ time of the first matched ADS record */  | 
41  |  |     TimeDelta mjd_last;    /* MDJ time of the last matched ADS record */  | 
42  |  |     TimeDelta mjd_m_first; /* MDJ time of the first MDS record */  | 
43  |  |     TimeDelta mjd_m_last;  /* MDJ time of the last MDS record */  | 
44  |  |  | 
45  |  |   public:  | 
46  |  |     /* CONSTRUCTOR */  | 
47  |  |     ADSRange()  | 
48  | 0  |         : idx_first(0), idx_last(0), off_first(0), off_last(0), mjd_first(0),  | 
49  | 0  |           mjd_last(0), mjd_m_first(0), mjd_m_last(0)  | 
50  | 0  |     { | 
51  | 0  |     }  | 
52  |  |  | 
53  |  |     ADSRange(const int idx_firstIn, const int idx_lastIn, const int off_firstIn,  | 
54  |  |              const int off_lastIn, const TimeDelta &mjd_firstIn,  | 
55  |  |              const TimeDelta &mjd_lastIn, const TimeDelta &mjd_m_firstIn,  | 
56  |  |              const TimeDelta &mjd_m_lastIn)  | 
57  |  |         : idx_first(idx_firstIn), idx_last(idx_lastIn), off_first(off_firstIn),  | 
58  |  |           off_last(off_lastIn), mjd_first(mjd_firstIn), mjd_last(mjd_lastIn),  | 
59  |  |           mjd_m_first(mjd_m_firstIn), mjd_m_last(mjd_m_lastIn)  | 
60  | 0  |     { | 
61  | 0  |     }  | 
62  |  |  | 
63  |  |     /* get count of matched records */  | 
64  |  |     inline int getDSRCount(void) const  | 
65  | 0  |     { | 
66  | 0  |         return (idx_last - idx_first + 1);  | 
67  | 0  |     }  | 
68  |  |  | 
69  |  |     /* GETTERS */  | 
70  |  |  | 
71  |  |     /* get index of the first matched ADS record */  | 
72  |  |     inline int getFirstIndex(void) const  | 
73  | 0  |     { | 
74  | 0  |         return this->idx_first;  | 
75  | 0  |     }  | 
76  |  |  | 
77  |  |     /* get index of the last matched ADS record */  | 
78  |  |     inline int getLastIndex(void) const  | 
79  | 0  |     { | 
80  | 0  |         return this->idx_last;  | 
81  | 0  |     }  | 
82  |  |  | 
83  |  |     /* get offset of the first matched ADS record */  | 
84  |  |     inline int getFirstOffset(void) const  | 
85  | 0  |     { | 
86  | 0  |         return this->off_first;  | 
87  | 0  |     }  | 
88  |  |  | 
89  |  |     /* get offset of the last matched ADS record */  | 
90  |  |     inline int getLastOffset(void) const  | 
91  | 0  |     { | 
92  | 0  |         return this->off_last;  | 
93  | 0  |     }  | 
94  |  |  | 
95  |  |     /* get MJD time of the first matched ADS record */  | 
96  |  |     inline TimeDelta getFirstTime(void) const  | 
97  | 0  |     { | 
98  | 0  |         return this->mjd_first;  | 
99  | 0  |     }  | 
100  |  |  | 
101  |  |     /* get MJD time of the last matched ADS record */  | 
102  |  |     inline TimeDelta getLastTime(void) const  | 
103  | 0  |     { | 
104  | 0  |         return this->mjd_last;  | 
105  | 0  |     }  | 
106  |  |  | 
107  |  |     /* get MJD time of the first MDS record */  | 
108  |  |     inline TimeDelta getMDSRFirstTime(void) const  | 
109  | 0  |     { | 
110  | 0  |         return this->mjd_m_first;  | 
111  | 0  |     }  | 
112  |  |  | 
113  |  |     /* get MJD time of the last MDS record */  | 
114  |  |     inline TimeDelta getMDSRLastTime(void) const  | 
115  | 0  |     { | 
116  | 0  |         return this->mjd_m_last;  | 
117  | 0  |     }  | 
118  |  | };  | 
119  |  |  | 
120  |  | /* -------------------------------------------------------------------- */  | 
121  |  | /*  | 
122  |  |  * NOTE: There are two kinds of ADS records:  | 
123  |  |  *  | 
124  |  |  *  1) One ADS record applicable to all consequent MDS records until replaced  | 
125  |  |  *     by another ADS record, i.e., last MDS records does no need to be  | 
126  |  |  *     followed by an ADS record.  | 
127  |  |  *  | 
128  |  |  *  2) Two ADS records applicable to all MDS records between them  | 
129  |  |  *     (e.g., tiepoints ADS), i.e., last MDS record should be followed  | 
130  |  |  *     by an ADS record having the same or later time-stamp.  | 
131  |  |  *  | 
132  |  |  *  The type of the ADS affects the way how the ADS records corresponding  | 
133  |  |  *  to a set of MDS records should be selected.  | 
134  |  |  */  | 
135  |  |  | 
136  |  | class ADSRangeLastAfter : public ADSRange  | 
137  |  | { | 
138  |  |  | 
139  |  |   public:  | 
140  |  |     /* CONSTRUCTOR */  | 
141  |  |     ADSRangeLastAfter(EnvisatFile &envfile, int ads_idx, int mds_idx,  | 
142  |  |                       const TimeDelta &line_interval);  | 
143  |  | };  | 
144  |  |  | 
145  |  | #endif /*tiepointrange_hpp*/  |