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...
| Header: | #include <BlendRenderer.h> |
| Since: | Esri::ArcGISRuntime 100.0 |
| Inherits: | Esri::ArcGISRuntime::HillshadeRenderer |
Public Functions
| BlendRenderer(Esri::ArcGISRuntime::Raster *elevationRaster, QObject *parent = nullptr) | |
| BlendRenderer(Esri::ArcGISRuntime::Raster *elevationRaster, double altitude, double azimuth, double zFactor, QObject *parent = nullptr) | |
| 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) | |
| virtual | ~BlendRenderer() override |
| Esri::ArcGISRuntime::ColorRamp * | colorRamp() const |
| Esri::ArcGISRuntime::Raster * | elevationRaster() const |
| QList<double> | gammas() const |
| QList<double> | noDataValues() const |
| QList<double> | outputMaxValues() const |
| QList<double> | outputMinValues() const |
| QList<double> | sourceMaxValues() const |
| QList<double> | sourceMinValues() const |
Detailed Description
The blend renderer extends HillshadeRenderer with options to provide minimum and maximum stretch values, gamma adjustments, elevation raster, and color ramp. It provides a look similar to the original raster, but with some terrain shading, giving it a textured look and making changes in elevation more visible.
Relevant samples:
- Blend raster layer: Blend a hillshade with a raster by specifying the elevation data. The resulting raster looks similar to the original raster, but with some terrain shading, giving it a textured look.
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] 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.
Any changes to this array are not applied to the renderer.
QList<double> BlendRenderer::noDataValues () const
Returns the no-data values, one for each band.
Any changes to this array are not applied to the renderer.
QList<double> BlendRenderer::outputMaxValues () const
Returns the maximum output values for blending, one for each band.
Any changes to this array are not applied to the renderer.
QList<double> BlendRenderer::outputMinValues () const
Returns the minimum output values for blending, one for each band.
Any changes to this array are not applied to the renderer.
QList<double> BlendRenderer::sourceMaxValues () const
Returns the maximum input values for blending, one for each band.
Any changes to this array are not applied to the renderer.
QList<double> BlendRenderer::sourceMinValues () const
Returns the minimum input values for blending, one for each band.
Any changes to this array are not applied to the renderer.