WXP::MapFile Class Reference

This class reads data from a map database file. More...

#include "../include/MapFile.h"

Public Types
enum	Type {   UNK , BINARY , ASCII , KML ,   SHAPE }

Public Member Functions
	MapFile ()
	MapFile (const char *filename)
	MapFile (const char *filenamem, int raccess, int rtype)
	~MapFile ()
int	checkType (const char *filename)
int	open (const char *filenamem, int raccess, int rtype)
int	open (const char *filename)
bool	isOpen ()
int	rewind ()
int	seek (int off)
int	tell ()
int	close ()
bool	isBinary ()
int	readHeader (MapFileHeader &hdr)
int	skipData ()
int	readData (EarthPoint &ept)
int	writeHeader (MapFileHeader &hdr)
int	writeData (EarthPoint &ept)
int	print ()

Detailed Description

This class reads data from a map database file.

Author

Dan Vietor

Member Enumeration Documentation

Type

enum WXP::MapFile::Type

Enumerator
UNK	Unknown map type
BINARY	Binary map type
ASCII	ASCII map type
KML	KML map type
SHAPE	Shape File map type

Constructor & Destructor Documentation

MapFile() [1/3]

MapFile::MapFile

(

)

Constructor. Initializes values

MapFile() [2/3]

MapFile::MapFile

(

const char *

filename

)

Constructor. Opens file.

Parameters

filename

File to open

References open().

MapFile() [3/3]

MapFile::MapFile	(	const char *	filename,
		int	raccess,
		int	rtype
	)

Constructor. Opens the map database file

Parameters

filename	File to open
raccess	Access (FileAttr::READ, FileAttr::WRITE)
rtype	File type (BINARY, ASCII)

References open().

~MapFile()

MapFile::~MapFile

(

)

Destructor. Closes file

References close().

Member Function Documentation

checkType()

int MapFile::checkType

(

const char *

filename

)

Checks the type of data in the file

Parameters

filename

File to check

References ASCII, BINARY, WXP::MapFileHeader::index, WXP::File::isOpen(), KML, WXP::MapFileHeader::maxlat, WXP::MapFileHeader::maxlon, WXP::MapFileHeader::minlat, WXP::MapFileHeader::minlon, WXP::MapFileHeader::num, WXP::File::read(), and SHAPE.

Referenced by open().

close()

int MapFile::close

(

)

Closes the file and marks the class as closed

References WXP::File::close().

Referenced by ~MapFile().

isBinary()

bool WXP::MapFile::isBinary ( )

inline

Returns true if map file binary

References BINARY.

isOpen()

bool MapFile::isOpen

(

)

Returns true if file opened

Referenced by WXP::MapPlot::draw().

open() [1/2]

int MapFile::open

(

const char *

filename

)

Opens the map database file

Parameters

filename

File to open

References open(), WXP::FileAttr::READ, and UNK.

open() [2/2]

int MapFile::open	(	const char *	filename,
		int	raccess,
		int	rtype
	)

Opens the map database file

Parameters

filename	File to open
raccess	Access (FileAttr::READ, FileAttr::WRITE)
rtype	File type (BINARY, ASCII)

References BINARY, checkType(), WXP::Swap::init(), WXP::File::isOpen(), KML, WXP::File::open(), WXP::KmlFile::open(), WXP::ShapeFile::open(), WXP::FileAttr::READ, SHAPE, UNK, and WXP::FileAttr::WRITE.

Referenced by WXP::MapPlot::draw(), MapFile(), and open().

print()

int MapFile::print

(

)

Prints object parameters

References BINARY.

readData()

int MapFile::readData

(

EarthPoint &

ept

)

Reads in the map data

Parameters

ept	The location of a map vertex

References ASCII, BINARY, KML, WXP::EarthPoint::lat, WXP::EarthPoint::lon, WXP::File::scanf(), and SHAPE.

Referenced by WXP::MapPlot::draw().

readHeader()

int MapFile::readHeader

(

MapFileHeader &

hdr

)

Reads the map header for each block of points

Parameters

hdr	Header structure to put header data

References ASCII, BINARY, WXP::KmlData::getName(), WXP::ShapeData::getName(), WXP::MapFileHeader::index, WXP::MapFileHeader::init(), KML, WXP::MapFileHeader::maxlat, WXP::MapFileHeader::maxlon, WXP::MapFileHeader::minlat, WXP::MapFileHeader::minlon, WXP::MapFileHeader::num, WXP::FileAttr::READ, WXP::KmlFile::read(), WXP::ShapeFile::read(), WXP::File::scanf(), WXP::MapFileHeader::setLabel(), and SHAPE.

Referenced by WXP::MapPlot::draw().

rewind()

int MapFile::rewind

(

)

Rewinds the file

References WXP::File::rewind().

seek()

int MapFile::seek

(

int

off

)

Seeks to a point in the file

References WXP::File::seek().

skipData()

int MapFile::skipData

(

)

Skips the map data section (still need to read header)

References BINARY, WXP::File::scanf(), and WXP::File::seek().

tell()

int WXP::MapFile::tell ( )

inline

Returns byte offset in map file

References WXP::File::tell().

writeData()

int MapFile::writeData

(

EarthPoint &

ept

)

Writes map data to file

Parameters

ept	The map vertex

References BINARY, WXP::EarthPoint::lat, WXP::EarthPoint::lon, and WXP::File::printf().

writeHeader()

int MapFile::writeHeader

(

MapFileHeader &

hdr

)

Write the map header for each block of points

Parameters

hdr	Header structure to put header data

References ASCII, WXP::MapFileHeader::index, WXP::MapFileHeader::maxlat, WXP::MapFileHeader::maxlon, WXP::MapFileHeader::minlat, WXP::MapFileHeader::minlon, WXP::MapFileHeader::num, and WXP::File::printf().

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The documentation for this class was generated from the following files:

• MapFile.h
• MapFile.cc