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qgis.cpp File Reference
#include "qgis.h"
#include "qgsversion.h"
#include <QCoreApplication>
#include <QColor>
#include <QDate>
#include <QTime>
#include <QDateTime>
#include "qgsconfig.h"
#include "qgslogger.h"
#include <ogr_api.h>
Include dependency graph for qgis.cpp:

Macros

#define DEGREE_TO_METER   111319.49079327358
 
#define FEET_TO_METER   0.3048
 
#define NMILE_TO_METER   1852.0
 

Functions

void * qgsMalloc (size_t size)
 Allocates size bytes and returns a pointer to the allocated memory. More...
 
void * qgsCalloc (size_t nmemb, size_t size)
 Allocates memory for an array of nmemb elements of size bytes each and returns a pointer to the allocated memory. More...
 
void qgsFree (void *ptr)
 Frees the memory space pointed to by ptr. More...
 
bool qgsVariantLessThan (const QVariant &lhs, const QVariant &rhs)
 
bool qgsVariantGreaterThan (const QVariant &lhs, const QVariant &rhs)
 
QString qgsVsiPrefix (QString path)
 

Variables

const CORE_EXPORT QString GEOPROJ4 = "+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs"
 PROJ4 string that represents a geographic coord sys. More...
 
const CORE_EXPORT QString GEOWKT
 Wkt string that represents a geographic coord sys. More...
 
const CORE_EXPORT QString PROJECT_SCALES
 
const CORE_EXPORT QString GEO_EPSG_CRS_AUTHID = "EPSG:4326"
 Geographic coord sys from EPSG authority. More...
 
const CORE_EXPORT QString GEO_NONE = "NONE"
 Constant that holds the string representation for "No ellips/No CRS". More...
 

Macro Definition Documentation

#define DEGREE_TO_METER   111319.49079327358
#define FEET_TO_METER   0.3048
#define NMILE_TO_METER   1852.0

Function Documentation

void* qgsCalloc ( size_t  nmemb,
size_t  size 
)

Allocates memory for an array of nmemb elements of size bytes each and returns a pointer to the allocated memory.

Works like C calloc() but prints debug message by QgsLogger if allocation fails.

Parameters
nmembnumber of elements
sizesize of element in bytes
void qgsFree ( void *  ptr)

Frees the memory space pointed to by ptr.

Works like C free().

Parameters
ptrpointer to memory space
void* qgsMalloc ( size_t  size)

Allocates size bytes and returns a pointer to the allocated memory.

Works like C malloc() but prints debug message by QgsLogger if allocation fails.

Parameters
sizesize in bytes
bool qgsVariantGreaterThan ( const QVariant &  lhs,
const QVariant &  rhs 
)
bool qgsVariantLessThan ( const QVariant &  lhs,
const QVariant &  rhs 
)
QString qgsVsiPrefix ( QString  path)

Variable Documentation

const CORE_EXPORT QString GEO_EPSG_CRS_AUTHID = "EPSG:4326"

Geographic coord sys from EPSG authority.

const CORE_EXPORT QString GEO_NONE = "NONE"

Constant that holds the string representation for "No ellips/No CRS".

const CORE_EXPORT QString GEOPROJ4 = "+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs"

PROJ4 string that represents a geographic coord sys.

const CORE_EXPORT QString GEOWKT
Initial value:
=
"GEOGCS[\"WGS 84\", "
" DATUM[\"WGS_1984\", "
" SPHEROID[\"WGS 84\",6378137,298.257223563, "
" AUTHORITY[\"EPSG\",7030]], "
" TOWGS84[0,0,0,0,0,0,0], "
" AUTHORITY[\"EPSG\",6326]], "
" PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",8901]], "
" UNIT[\"DMSH\",0.0174532925199433,AUTHORITY[\"EPSG\",9108]], "
" AXIS[\"Lat\",NORTH], "
" AXIS[\"Long\",EAST], "
" AUTHORITY[\"EPSG\",4326]]"

Wkt string that represents a geographic coord sys.

Note
added in 1.8 to replace GEOWkt
const CORE_EXPORT QString PROJECT_SCALES
Initial value:
=
"1:1000000,1:500000,1:250000,1:100000,1:50000,1:25000,"
"1:10000,1:5000,1:2500,1:1000,1:500"