The Qgis class provides global constants for use throughout the application. More...

#include <qgis.h>

Public Types
enum	DataType { UnknownDataType = 0, Byte = 1, UInt16 = 2, Int16 = 3, UInt32 = 4, Int32 = 5, Float32 = 6, Float64 = 7, CInt16 = 8, CInt32 = 9, CFloat32 = 10, CFloat64 = 11, ARGB32 = 12, ARGB32_Premultiplied = 13 }
	Raster data types. More...

enum	MessageLevel { Info = 0, Warning = 1, Critical = 2, Success = 3, None = 4 }
	Level for messages This will be used both for message log and message bar in application. More...

Static Public Attributes
static const double	DEFAULT_HIGHLIGHT_BUFFER_MM = 0.5
	Default highlight buffer in mm. More...

static const QColor	DEFAULT_HIGHLIGHT_COLOR = QColor( 255, 0, 0, 128 )
	Default highlight color. More...

static const double	DEFAULT_HIGHLIGHT_MIN_WIDTH_MM = 1.0
	Default highlight line/stroke minimum width in mm. More...

static const float	DEFAULT_MAPTOPIXEL_THRESHOLD = 1.0f
	Default threshold between map coordinates and device coordinates for map2pixel simplification. More...

static const double	DEFAULT_SEARCH_RADIUS_MM = 2.
	Identify search radius in mm. More...

static const double	DEFAULT_SNAP_TOLERANCE = 12.0
	Default snapping distance tolerance. More...

static const QgsTolerance::UnitType	DEFAULT_SNAP_UNITS = QgsTolerance::Pixels
	Default snapping distance units. More...

static const double	DEFAULT_Z_COORDINATE = 0.0
	Default Z coordinate value for 2.5d geometry This value have to be assigned to the Z coordinate for the new 2.5d geometry vertex. More...

static const char *	QGIS_DEV_VERSION = QGSVERSION
	The development version. More...

static const QString	QGIS_RELEASE_NAME
	Release name. More...

static const QString	QGIS_VERSION
	Version string. More...

static const int	QGIS_VERSION_INT = VERSION_INT
	Version number used for comparing versions using the "Check QGIS Version" function. More...

static const double	SCALE_PRECISION = 0.9999999999
	Fudge factor used to compare two scales. More...

static const double	UI_SCALE_FACTOR = 1
	UI scaling factor. More...

Detailed Description

The Qgis class provides global constants for use throughout the application.

Definition at line 58 of file qgis.h.

Member Enumeration Documentation

enum Qgis::DataType

Raster data types.

This is modified and extended copy of GDALDataType.

Enumerator
UnknownDataType	Unknown or unspecified type.
Byte	Eight bit unsigned integer (quint8)
UInt16	Sixteen bit unsigned integer (quint16)
Int16	Sixteen bit signed integer (qint16)
UInt32	Thirty two bit unsigned integer (quint32)
Int32	Thirty two bit signed integer (qint32)
Float32	Thirty two bit floating point (float)
Float64	Sixty four bit floating point (double)
CInt16	Complex Int16.
CInt32	Complex Int32.
CFloat32	Complex Float32.
CFloat64	Complex Float64.
ARGB32	Color, alpha, red, green, blue, 4 bytes the same as QImage::Format_ARGB32.
ARGB32_Premultiplied	Color, alpha, red, green, blue, 4 bytes the same as QImage::Format_ARGB32_Premultiplied.

Definition at line 92 of file qgis.h.

enum Qgis::MessageLevel

Level for messages This will be used both for message log and message bar in application.

Enumerator
Info
Warning
Critical
Success
None

Definition at line 79 of file qgis.h.

Member Data Documentation

const double Qgis::DEFAULT_HIGHLIGHT_BUFFER_MM = 0.5

static

Default highlight buffer in mm.

Since: QGIS 2.3

Definition at line 127 of file qgis.h.

const QColor Qgis::DEFAULT_HIGHLIGHT_COLOR = QColor( 255, 0, 0, 128 )

static

Default highlight color.

The transparency is expected to only be applied to polygon fill. Lines and outlines are rendered opaque.

Since: QGIS 2.3

Definition at line 122 of file qgis.h.

const double Qgis::DEFAULT_HIGHLIGHT_MIN_WIDTH_MM = 1.0

static

Default highlight line/stroke minimum width in mm.

Since: QGIS 2.3

Definition at line 132 of file qgis.h.

const float Qgis::DEFAULT_MAPTOPIXEL_THRESHOLD = 1.0f

static

Default threshold between map coordinates and device coordinates for map2pixel simplification.

Definition at line 116 of file qgis.h.

const double Qgis::DEFAULT_SEARCH_RADIUS_MM = 2.

static

Identify search radius in mm.

Since: QGIS 2.3

Definition at line 113 of file qgis.h.

const double Qgis::DEFAULT_SNAP_TOLERANCE = 12.0

static

Default snapping distance tolerance.

Since: QGIS 3.0

Definition at line 158 of file qgis.h.

const QgsTolerance::UnitType Qgis::DEFAULT_SNAP_UNITS = QgsTolerance::Pixels

static

Default snapping distance units.

Since: QGIS 3.0

Definition at line 164 of file qgis.h.

const double Qgis::DEFAULT_Z_COORDINATE = 0.0

static

Default Z coordinate value for 2.5d geometry This value have to be assigned to the Z coordinate for the new 2.5d geometry vertex.

Since: QGIS 3.0

Definition at line 145 of file qgis.h.

const char * Qgis::QGIS_DEV_VERSION = QGSVERSION

static

The development version.

Definition at line 70 of file qgis.h.

const QString Qgis::QGIS_RELEASE_NAME

static

Release name.

Definition at line 68 of file qgis.h.

const QString Qgis::QGIS_VERSION

static

Version string.

Definition at line 64 of file qgis.h.

const int Qgis::QGIS_VERSION_INT = VERSION_INT

static

Version number used for comparing versions using the "Check QGIS Version" function.

Definition at line 66 of file qgis.h.

const double Qgis::SCALE_PRECISION = 0.9999999999

static

Fudge factor used to compare two scales.

The code is often going from scale to scale denominator. So it looses precision and, when a limit is inclusive, can lead to errors. To avoid that, use this factor instead of using <= or >=.

Since: QGIS 2.15

Definition at line 139 of file qgis.h.

const double Qgis::UI_SCALE_FACTOR = 1

static

UI scaling factor.

This should be applied to all widget sizes obtained from font metrics, to account for differences in the default font sizes across different platforms.

Since: QGIS 3.0

Definition at line 152 of file qgis.h.

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

/build/qgis-3.4.15+24xenial/src/core/qgis.h
/build/qgis-3.4.15+24xenial/src/core/qgis.cpp

Public Types

Static Public Attributes

Detailed Description

Member Enumeration Documentation

Member Data Documentation