mirror of
https://github.com/qgis/QGIS.git
synced 2025-11-04 00:04:25 -05:00
c49b5b777f
Rationale: - there was a lot of large objects passed by value, so potentially there's a speed bump from this - even for implicitly shared classes like QString/QList there's still a (small) cost for copying the objects when there's no reason to - it's the right thing to do!
101 lines
3.9 KiB
Plaintext
101 lines
3.9 KiB
Plaintext
/** \class QgsRaster
|
|
*/
|
|
|
|
class QgsRaster
|
|
{
|
|
%TypeHeaderCode
|
|
#include <qgsraster.h>
|
|
%End
|
|
|
|
public:
|
|
// This is modified copy of GDALColorInterp
|
|
enum ColorInterpretation
|
|
{
|
|
UndefinedColorInterpretation,
|
|
/** Greyscale */ GrayIndex,
|
|
/** Paletted (see associated color table) */ PaletteIndex, // indexed color table
|
|
/** Red band of RGBA image */ RedBand,
|
|
/** Green band of RGBA image */ GreenBand,
|
|
/** Blue band of RGBA image */ BlueBand,
|
|
/** Alpha (0=transparent, 255=opaque) */ AlphaBand,
|
|
/** Hue band of HLS image */ HueBand,
|
|
/** Saturation band of HLS image */ SaturationBand,
|
|
/** Lightness band of HLS image */ LightnessBand,
|
|
/** Cyan band of CMYK image */ CyanBand,
|
|
/** Magenta band of CMYK image */ MagentaBand,
|
|
/** Yellow band of CMYK image */ YellowBand,
|
|
/** Black band of CMLY image */ BlackBand,
|
|
/** Y Luminance */ YCbCr_YBand,
|
|
/** Cb Chroma */ YCbCr_CbBand,
|
|
/** Cr Chroma */ YCbCr_CrBand,
|
|
/** Continuous palette, QGIS addition, GRASS */ ContinuousPalette,
|
|
};
|
|
|
|
enum IdentifyFormat
|
|
{
|
|
IdentifyFormatUndefined,
|
|
IdentifyFormatValue,
|
|
IdentifyFormatText,
|
|
IdentifyFormatHtml,
|
|
IdentifyFormatFeature,
|
|
};
|
|
|
|
// Progress types
|
|
enum RasterProgressType
|
|
{
|
|
ProgressHistogram,
|
|
ProgressPyramids,
|
|
ProgressStatistics,
|
|
};
|
|
|
|
enum RasterBuildPyramids
|
|
{
|
|
PyramidsFlagNo,
|
|
PyramidsFlagYes,
|
|
PyramidsCopyExisting,
|
|
};
|
|
|
|
enum RasterPyramidsFormat
|
|
{
|
|
PyramidsGTiff,
|
|
PyramidsInternal,
|
|
PyramidsErdas,
|
|
};
|
|
|
|
/** \brief Contrast enhancement limits */
|
|
enum ContrastEnhancementLimits
|
|
{
|
|
ContrastEnhancementNone,
|
|
ContrastEnhancementMinMax,
|
|
ContrastEnhancementStdDev,
|
|
ContrastEnhancementCumulativeCut
|
|
};
|
|
|
|
/** \brief This enumerator describes the different kinds of drawing we can do */
|
|
enum DrawingStyle
|
|
{
|
|
UndefinedDrawingStyle,
|
|
SingleBandGray, // a single band image drawn as a range of gray colors
|
|
SingleBandPseudoColor, // a single band image drawn using a pseudocolor algorithm
|
|
PalettedColor, // a "Palette" image drawn using color table
|
|
PalettedSingleBandGray, // a "Palette" layer drawn in gray scale
|
|
PalettedSingleBandPseudoColor, // a "Palette" layerdrawn using a pseudocolor algorithm
|
|
PalettedMultiBandColor, // currently not supported
|
|
MultiBandSingleBandGray, // a layer containing 2 or more bands, but a single band drawn as a range of gray colors
|
|
MultiBandSingleBandPseudoColor, // a layer containing 2 or more bands, but a single band drawn using a pseudocolor algorithm
|
|
MultiBandColor, // a layer containing 2 or more bands, mapped to RGB color space. In the case of a multiband with only two bands, one band will be mapped to more than one color.
|
|
SingleBandColorDataStyle // ARGB values rendered directly
|
|
};
|
|
|
|
static QString contrastEnhancementLimitsAsString( QgsRaster::ContrastEnhancementLimits theLimits );
|
|
static ContrastEnhancementLimits contrastEnhancementLimitsFromString( const QString& theLimits );
|
|
|
|
/** Get value representable by given data type.
|
|
* Supported are numerical types Byte, UInt16, Int16, UInt32, Int32, Float32, Float64.
|
|
* @param value
|
|
* @param dataType
|
|
* @note added in version 2.1 */
|
|
static double representableValue( double value, QGis::DataType dataType );
|
|
};
|
|
|