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Showing content from https://developers.arcgis.com/qt/cpp/api-reference/esri-arcgisruntime-blendrenderer.html below:

BlendRenderer Class | ArcGIS Maps SDK for Qt

A blend renderer can apply a color ramp to a hillshade to emphasize areas of high or low elevation of raster data in a RasterLayer. More...

Member Function Documentation [explicit] BlendRenderer::BlendRenderer(Esri::ArcGISRuntime::Raster *elevationRaster, QObject *parent = nullptr)

Constructor that takes an elevationRaster with an optional parent.

The default values are:

minValues - none
maxValues - none
gammas - none
altitude - 45 degrees
azimuth - 315 degrees
zFactor - 1
slopeType - SlopeType::None
pixelSizeFactor - 1
pixelSizePower - 1
outputBitDepth - 8

BlendRenderer::BlendRenderer(Esri::ArcGISRuntime::Raster *elevationRaster, double altitude, double azimuth, double zFactor, QObject *parent = nullptr)

Constructor that takes the following parameters:

elevationRaster - The raster elevation source.
altitude - The light's angle of elevation above the horizon.
azimuth - The light's relative angle along the horizon measured clockwise, where 0 is north.
zFactor - The z-factor used to convert z unit to x,y units.
parent - The optional parent.

The default values are:

minValues - none
maxValues - none
gammas - none
slopeType - SlopeType::None
pixelSizeFactor - 1
pixelSizePower - 1
outputBitDepth - 8

BlendRenderer::BlendRenderer(Esri::ArcGISRuntime::Raster *elevationRaster, const QList<double> &outputMinValues, const QList<double> &outputMaxValues, const QList<double> &sourceMinValues, const QList<double> &sourceMaxValues, const QList<double> &noDataValues, const QList<double> &gammas, Esri::ArcGISRuntime::ColorRamp *colorRamp, double altitude, double azimuth, double zFactor, Esri::ArcGISRuntime::SlopeType slopeType, double pixelSizeFactor, double pixelSizePower, int outputBitDepth, QObject *parent = nullptr)

Creates a blend renderer.

elevationRaster - The elevation data, Raster. Can be nullptr.
outputMinValues - QList of double. Output stretch values, one for each band. Can be empty.
outputMaxValues - QList of double. Output stretch values, one for each band. Can be empty.
sourceMinValues - QList of double. Input stretch values, one for each band. Can be empty.
sourceMaxValues - QList of double. Input stretch values, one for each band. Can be empty.
noDataValues - QList of double. NoData values, one for each band. Can be empty.
gammas - QList of double. Gamma adjustment. Can be empty.
colorRamp - The color ramp object.
altitude - Altitude angle of the light source.
azimuth - Azimuth angle of the light source, measured clockwise from north.
zFactor - Factor to convert z unit to x,y unit, default is 1.
slopeType - SlopeType.
pixelSizeFactor - Pixel size factor, default is 1.
pixelSizePower - Pixel size power value, default is 1.
outputBitDepth - Output bit depth, default is 8-bit.
parent - The optional parent QObject.

[override virtual noexcept] BlendRenderer::~BlendRenderer()

Destructor.

[since Esri::ArcGISRuntime 100.8] Esri::ArcGISRuntime::ColorRamp *BlendRenderer::colorRamp() const

Returns the color ramp for creating the blend renderer.

This function was introduced in Esri::ArcGISRuntime 100.8.

Esri::ArcGISRuntime::Raster *BlendRenderer::elevationRaster() const

Returns the elevation raster, Raster.

QList<double> BlendRenderer::gammas() const

Returns the gamma adjustments.