Kstars

nomadbinfile2sqlite.h
1/*
2 SPDX-FileCopyrightText: 2011 Akarsh Simha <akarshsimha@gmail.com>
3
4 SPDX-License-Identifier: GPL-2.0-or-later
5*/
6
7#ifndef NOMADBINFILE2SQLITE_H
8#define NOMADBINFILE2SQLITE_H
9
10#define pow2(x) (1 << (x))
11#define HTM_LEVEL 6
12#define INDEX_ENTRY_SIZE 12
13#define NTRIXELS pow2(2 * HTM_LEVEL) * 8
14#define PM_MILLENIA 10 // This is not good. Needs to be stored in the data file
15
16#include "HTMesh.h"
17
18#include <sqlite3.h>
19#include <sys/types.h>
20#include <stdio.h>
21
22/*
23 * struct to store star data, to be written in this format, into the binary file.
24 */
25
26typedef struct DeepStarData
27{
28 int32_t RA;
29 int32_t Dec;
30 int16_t dRA;
31 int16_t dDec;
32 int16_t B;
33 int16_t V;
35
36/**
37 *@class NOMADStarDataWriter
38 *@short Writes NOMAD star data
39 *@note This is ugly code, not part of the main KStars program
40 *@author Akarsh Simha <akarsh.simha@kdemail.net>
41 */
43{
44 public:
45 /**
46 *@short Constructor. Sets up the HTMesh, initializes various things.
47 */
49
50 /**
51 *@short Destructor. Deletes the HTMesh we created.
52 */
54
55 /**
56 *@short Byteswaps the DeepStarData structure
57 */
58 static void bswap_stardata(DeepStarData *stardata);
59
60 /**
61 *@short Computes the (unprecessed) coordinates of a star after
62 * accounting for proper motion
63 */
64 static void calculatePMCoords(double startRA, double startDec, double dRA, double dDec, double *endRA,
65 double *endDec, float years);
66
67 /**
68 *@short Writes the star data into the DB by calling multiple functions
69 *@return Whether the write was successful
70 */
71 bool write();
72
73 private:
74 /**
75 *@short Creates the table to write data into
76 */
77 bool createTable();
78
79 /**
80 *@short Truncates the table
81 */
82 bool truncateTable();
83
84 /**
85 *@short Insert the star data into the database
86 *@param trixel The trixel in which the star exists according to the data file
87 *@param data The DeepStarData structure containing the star's information
88 *@return true if inserted or star was a duplicate, false if an error occurred
89 *@note This method takes care of duplicating the star and finding the number of copies
90 */
91 bool insertStarData(unsigned int trixel, const DeepStarData *const data);
92
93 /**
94 *@short Write star data into the DB
95 *@note See README.binfileformat for more details
96 */
97 bool writeStarDataToDB();
98
99 /**
100 *@short Read the KStars binary file header and gets various
101 * parameters required for further processing.
102 *@returns true on success.
103 */
104 bool readFileHeader();
105
106 HTMesh *m_Mesh;
107 sqlite3 *db;
108 char db_tbl[20];
109 bool byteswap;
110 bool m_HeaderRead;
111 long m_IndexOffset;
112 u_int16_t ntrixels;
113 FILE *DataFile;
114};
115
116#endif
HTMesh was originally intended to be a simple interface to the HTM library for the KStars project tha...
Definition HTMesh.h:57
Writes NOMAD star data.
NOMADStarDataWriter(FILE *f, int HTMLevel, MYSQL *link, char *_db_tbl)
Constructor.
bool write()
Writes the star data into the DB by calling multiple functions.
~NOMADStarDataWriter()
Destructor.
static void calculatePMCoords(double startRA, double startDec, double dRA, double dDec, double *endRA, double *endDec, float years)
Computes the (unprecessed) coordinates of a star after accounting for proper motion.
static void bswap_stardata(DeepStarData *stardata)
Byteswaps the DeepStarData structure.
A 16-byte structure that holds star data for really faint stars.
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