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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:

Go to the source code of this file.

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

Definition at line 190 of file qgis.cpp.

References QgsDebugMsg, and qgsMalloc().

void qgsFree ( void *  ptr)

Frees the memory space pointed to by ptr.

Works like C free().

Parameters
ptrpointer to memory space

Definition at line 205 of file qgis.cpp.

Referenced by QgsRasterBlock::convert(), QgsRasterBlock::reset(), QgsRasterBlock::setImage(), QgsRasterFileWriter::writeImageRaster(), and QgsRasterBlock::~QgsRasterBlock().

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

Definition at line 175 of file qgis.cpp.

References QgsDebugMsg.

Referenced by QgsRasterBlock::convert(), QgsRasterBlock::createNoDataBitmap(), qgsCalloc(), QgsRasterBlock::reset(), and QgsRasterFileWriter::writeImageRaster().

bool qgsVariantGreaterThan ( const QVariant &  lhs,
const QVariant &  rhs 
)

Definition at line 237 of file qgis.cpp.

References qgsVariantLessThan().

Referenced by QgsSymbolLayerV2Utils::sortVariantList(), and valueGreaterThan().

bool qgsVariantLessThan ( const QVariant &  lhs,
const QVariant &  rhs 
)
QString qgsVsiPrefix ( QString  path)

Definition at line 242 of file qgis.cpp.

Referenced by QgsProject::readPath(), QgsZipItem::vsiPrefix(), and QgsProject::writePath().

Variable Documentation

const CORE_EXPORT QString GEO_EPSG_CRS_AUTHID = "EPSG:4326"
const CORE_EXPORT QString GEO_NONE = "NONE"
const CORE_EXPORT QString GEOPROJ4 = "+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs"

PROJ4 string that represents a geographic coord sys.

Definition at line 51 of file qgis.cpp.

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

Definition at line 54 of file qgis.cpp.

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"

Definition at line 67 of file qgis.cpp.

Referenced by QgsScaleComboBox::updateScales().