mirror of
https://github.com/qgis/QGIS.git
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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
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*/
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class QgsRaster
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{
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%TypeHeaderCode
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#include <qgsraster.h>
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%End
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public:
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// This is modified copy of GDALColorInterp
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enum ColorInterpretation
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{
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UndefinedColorInterpretation,
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/** Greyscale */ GrayIndex,
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/** Paletted (see associated color table) */ PaletteIndex, // indexed color table
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/** Red band of RGBA image */ RedBand,
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/** Green band of RGBA image */ GreenBand,
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/** Blue band of RGBA image */ BlueBand,
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/** Alpha (0=transparent, 255=opaque) */ AlphaBand,
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/** Hue band of HLS image */ HueBand,
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/** Saturation band of HLS image */ SaturationBand,
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/** Lightness band of HLS image */ LightnessBand,
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/** Cyan band of CMYK image */ CyanBand,
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/** Magenta band of CMYK image */ MagentaBand,
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/** Yellow band of CMYK image */ YellowBand,
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/** Black band of CMLY image */ BlackBand,
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/** Y Luminance */ YCbCr_YBand,
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/** Cb Chroma */ YCbCr_CbBand,
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/** Cr Chroma */ YCbCr_CrBand,
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/** Continuous palette, QGIS addition, GRASS */ ContinuousPalette,
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};
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enum IdentifyFormat
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{
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IdentifyFormatUndefined,
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IdentifyFormatValue,
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IdentifyFormatText,
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IdentifyFormatHtml,
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IdentifyFormatFeature,
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};
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// Progress types
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enum RasterProgressType
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{
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ProgressHistogram,
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ProgressPyramids,
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ProgressStatistics,
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};
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enum RasterBuildPyramids
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{
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PyramidsFlagNo,
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PyramidsFlagYes,
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PyramidsCopyExisting,
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};
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enum RasterPyramidsFormat
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{
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PyramidsGTiff,
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PyramidsInternal,
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PyramidsErdas,
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};
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/** \brief Contrast enhancement limits */
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enum ContrastEnhancementLimits
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{
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ContrastEnhancementNone,
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ContrastEnhancementMinMax,
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ContrastEnhancementStdDev,
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ContrastEnhancementCumulativeCut
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};
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/** \brief This enumerator describes the different kinds of drawing we can do */
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enum DrawingStyle
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{
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UndefinedDrawingStyle,
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SingleBandGray, // a single band image drawn as a range of gray colors
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SingleBandPseudoColor, // a single band image drawn using a pseudocolor algorithm
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PalettedColor, // a "Palette" image drawn using color table
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PalettedSingleBandGray, // a "Palette" layer drawn in gray scale
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PalettedSingleBandPseudoColor, // a "Palette" layerdrawn using a pseudocolor algorithm
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PalettedMultiBandColor, // currently not supported
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MultiBandSingleBandGray, // a layer containing 2 or more bands, but a single band drawn as a range of gray colors
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MultiBandSingleBandPseudoColor, // a layer containing 2 or more bands, but a single band drawn using a pseudocolor algorithm
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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.
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SingleBandColorDataStyle // ARGB values rendered directly
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};
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static QString contrastEnhancementLimitsAsString( QgsRaster::ContrastEnhancementLimits theLimits );
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static ContrastEnhancementLimits contrastEnhancementLimitsFromString( const QString& theLimits );
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/** Get value representable by given data type.
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* Supported are numerical types Byte, UInt16, Int16, UInt32, Int32, Float32, Float64.
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* @param value
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* @param dataType
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* @note added in version 2.1 */
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static double representableValue( double value, QGis::DataType dataType );
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};
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