QgsRasterBandStats Class Reference

The RasterBandStats struct is a container for statistics about a single raster band. More...

#include <qgsrasterbandstats.h>

Collaboration diagram for QgsRasterBandStats:

Public Types
enum	Stats {   None = 0, Min = 1, Max = 1 << 1, Range = 1 << 2,   Sum = 1 << 3, Mean = 1 << 4, StdDev = 1 << 5, SumOfSquares = 1 << 6,   All = Min | Max | Range | Sum | Mean | StdDev | SumOfSquares }

Public Member Functions
	QgsRasterBandStats ()
bool	contains (const QgsRasterBandStats &s) const

Public Attributes
int	bandNumber
	The gdal band number (starts at 1)
qgssize	elementCount
	The number of not no data cells in the band.
double	maximumValue
	The maximum cell value in the raster band.
double	minimumValue
	The minimum cell value in the raster band.
double	mean
	The mean cell value for the band.
double	range
	The range is the distance between min & max.
double	stdDev
	The standard deviation of the cell values.
int	statsGathered
	Collected statistics.
double	sum
	The sum of all cells in the band.
double	sumOfSquares
	The sum of the squares.
int	width
	Number of columns used to calc statistics.
int	height
	Number of rows used to calc statistics.
QgsRectangle	extent
	Extent used to calc statistics.

Detailed Description

The RasterBandStats struct is a container for statistics about a single raster band.

Definition at line 33 of file qgsrasterbandstats.h.

Member Enumeration Documentation

enum QgsRasterBandStats::Stats

Enumerator:

None
Min
Max
Range
Sum
Mean
StdDev
SumOfSquares
All

Definition at line 36 of file qgsrasterbandstats.h.

Constructor & Destructor Documentation

QgsRasterBandStats::QgsRasterBandStats ( )

inline

Definition at line 49 of file qgsrasterbandstats.h.

References MathUtils::max(), and MathUtils::min().

Member Function Documentation

bool QgsRasterBandStats::contains ( const QgsRasterBandStats &  s ) const

inline

Compares region, size etc. not collected statistics

Definition at line 65 of file qgsrasterbandstats.h.

References bandNumber, extent, height, statsGathered, and width.

Referenced by QgsRasterInterface::bandStatistics(), and QgsRasterInterface::hasStatistics().

Member Data Documentation

int QgsRasterBandStats::bandNumber

The gdal band number (starts at 1)

Definition at line 75 of file qgsrasterbandstats.h.

Referenced by contains(), and QgsRasterInterface::initStatistics().

qgssize QgsRasterBandStats::elementCount

The number of not no data cells in the band.

Definition at line 79 of file qgsrasterbandstats.h.

Referenced by QgsRasterInterface::bandStatistics(), and QgsRasterLayer::metadata().

QgsRectangle QgsRasterBandStats::extent

Extent used to calc statistics.

Definition at line 114 of file qgsrasterbandstats.h.

Referenced by QgsRasterInterface::bandStatistics(), contains(), and QgsRasterInterface::initStatistics().

int QgsRasterBandStats::height

Number of rows used to calc statistics.

Definition at line 111 of file qgsrasterbandstats.h.

Referenced by QgsRasterInterface::bandStatistics(), contains(), and QgsRasterInterface::initStatistics().

double QgsRasterBandStats::maximumValue

The maximum cell value in the raster band.

NO_DATA values are ignored. This does not use the gdal GetMaximmum function.

Definition at line 83 of file qgsrasterbandstats.h.

Referenced by QgsRasterInterface::bandStatistics(), QgsProjectFileTransform::convertRasterProperties(), QgsRasterInterface::initHistogram(), QgsRasterLayer::metadata(), QgsRasterRendererRegistry::minMaxValuesForBand(), QgsRasterMinMaxWidget::on_mLoadPushButton_clicked(), QgsRasterChecker::runTest(), QgsRasterLayer::setContrastEnhancement(), and QgsRasterFileWriter::writeDataRaster().

double QgsRasterBandStats::mean

The mean cell value for the band.

NO_DATA values are excluded.

Definition at line 90 of file qgsrasterbandstats.h.

Referenced by QgsRasterInterface::bandStatistics(), QgsRasterLayer::metadata(), QgsRasterRendererRegistry::minMaxValuesForBand(), QgsRasterMinMaxWidget::on_mLoadPushButton_clicked(), QgsRasterChecker::runTest(), and QgsRasterLayer::setContrastEnhancement().

double QgsRasterBandStats::minimumValue

The minimum cell value in the raster band.

NO_DATA values are ignored. This does not use the gdal GetMinimum function.

Definition at line 87 of file qgsrasterbandstats.h.

Referenced by QgsRasterInterface::bandStatistics(), QgsProjectFileTransform::convertRasterProperties(), QgsRasterInterface::initHistogram(), QgsRasterLayer::metadata(), QgsRasterRendererRegistry::minMaxValuesForBand(), QgsRasterMinMaxWidget::on_mLoadPushButton_clicked(), QgsRasterChecker::runTest(), QgsRasterLayer::setContrastEnhancement(), and QgsRasterFileWriter::writeDataRaster().

double QgsRasterBandStats::range

The range is the distance between min & max.

Definition at line 93 of file qgsrasterbandstats.h.

Referenced by QgsRasterInterface::bandStatistics(), and QgsRasterLayer::metadata().

int QgsRasterBandStats::statsGathered

Collected statistics.

Definition at line 99 of file qgsrasterbandstats.h.

Referenced by QgsRasterInterface::bandStatistics(), contains(), and QgsRasterInterface::initStatistics().

double QgsRasterBandStats::stdDev

The standard deviation of the cell values.

Definition at line 96 of file qgsrasterbandstats.h.

Referenced by QgsRasterInterface::bandStatistics(), QgsRasterLayer::metadata(), QgsRasterRendererRegistry::minMaxValuesForBand(), QgsRasterMinMaxWidget::on_mLoadPushButton_clicked(), QgsRasterChecker::runTest(), and QgsRasterLayer::setContrastEnhancement().

double QgsRasterBandStats::sum

The sum of all cells in the band.

NO_DATA values are excluded.

Definition at line 102 of file qgsrasterbandstats.h.

Referenced by QgsRasterInterface::bandStatistics(), and QgsRasterLayer::metadata().

double QgsRasterBandStats::sumOfSquares

The sum of the squares.

Used to calculate standard deviation.

Definition at line 105 of file qgsrasterbandstats.h.

Referenced by QgsRasterInterface::bandStatistics(), and QgsRasterLayer::metadata().

int QgsRasterBandStats::width

Number of columns used to calc statistics.

Definition at line 108 of file qgsrasterbandstats.h.

Referenced by QgsRasterInterface::bandStatistics(), contains(), and QgsRasterInterface::initStatistics().

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

• /tmp/buildd/qgis-2.2.0+wheezy1/src/core/raster/qgsrasterbandstats.h