Represents raster data that can be rendered using a RasterLayer. More...
| Header: | #include <Raster.h> |
| Since: | Esri::ArcGISRuntime 100.0 |
| Inherits: | Esri::ArcGISRuntime::Object and Esri::ArcGISRuntime::Loadable |
| Inherited By: | Esri::ArcGISRuntime::GeoPackageRaster, Esri::ArcGISRuntime::ImageServiceRaster, and Esri::ArcGISRuntime::MosaicDatasetRaster |
Public Functions
| Raster(const QString &path, QObject *parent = nullptr) | |
| Raster(Esri::ArcGISRuntime::RasterFunction *rasterFunction, QObject *parent = nullptr) | |
| virtual | ~Raster() override |
| QString | path() const |
| Esri::ArcGISRuntime::RasterFunction * | rasterFunction() const |
| Esri::ArcGISRuntime::RasterType | rasterType() const |
Reimplemented Public Functions
| virtual void | cancelLoad() override |
| virtual void | load() override |
| virtual Esri::ArcGISRuntime::Error | loadError() const override |
| virtual Esri::ArcGISRuntime::LoadStatus | loadStatus() const override |
| virtual void | retryLoad() override |
Signals
| void | doneLoading(const Esri::ArcGISRuntime::Error &loadError) |
| void | loadStatusChanged(Esri::ArcGISRuntime::LoadStatus loadStatus) |
Detailed Description
A raster consists of a matrix of cells (or pixels) organized into rows and columns (or a grid) where each cell contains a value representing information, such as temperature. Rasters are digital aerial photographs, imagery from satellites, digital pictures, or even scanned maps.
It can be created from a raster file on device or from a raster function.
Supported Raster formats include:
- ASRP/USRP
- CIB1, 5, 10
- DTED0, 1, 2
- GeoTIFF
- HFA
- HRE
- IMG
- JPEG
- JPEG 2000
- NITF
- PNG
- RPF
- SRTM1, 2
- Mosaic Dataset in SQLite (read-only)
Learn more about rasters from the ArcGIS Desktop documentation.
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.
- Colormap renderer: Apply a colormap renderer to a raster.
- Hillshade renderer: Apply a hillshade renderer to a raster.
- Raster function (file): Apply a raster function to a local raster file and display the output with a raster layer.
- Raster function (service): Load a raster from a service, then apply a function to it.
- Raster layer (file): Create and use a raster layer made from a local raster file.
- RGB renderer: Apply an RGB renderer to a raster layer to enhance feature visibility.
- Stretch renderer: Use a stretch renderer to enhance the visual contrast of raster data for analysis.
See also RasterLayer.
Member Function Documentation
[explicit] Raster::Raster(const QString &path, QObject *parent = nullptr)
Constructor that takes a path to a local raster file and an optional parent.
[explicit] Raster::Raster(Esri::ArcGISRuntime::RasterFunction *rasterFunction , QObject *parent = nullptr)
Constructor that takes a rasterFunction and an optional parent.
[override virtual] Raster::~Raster()
Destructor.
[override virtual] void Raster::cancelLoad ()
Reimplements: Loadable::cancelLoad().
See Loadable.
[signal] void Raster::doneLoading (const Esri::ArcGISRuntime::Error &loadError )
Signal emitted when this object is done loading.
- loadError - Details about any error that may have occurred.
Note: If there is a load error it will also be emitted on the errorOccurred signal.
[override virtual] void Raster::load()
Reimplements: Loadable::load().
See Loadable.
[override virtual] Esri::ArcGISRuntime::Error Raster::loadError () const
Reimplements: Loadable::loadError() const.
See Loadable.
[override virtual] Esri::ArcGISRuntime::LoadStatus Raster::loadStatus () const
Reimplements: Loadable::loadStatus() const.
See Loadable.
[signal] void Raster::loadStatusChanged (Esri::ArcGISRuntime::LoadStatus loadStatus )
Signal emitted when the loadStatus changes for this object.
See also Loadable.
QString Raster::path() const
Returns the path to the raster file.
Esri::ArcGISRuntime::RasterFunction *Raster::rasterFunction () const
Returns the raster function used to create this raster.
Esri::ArcGISRuntime::RasterType Raster::rasterType () const
Returns the raster type.
[override virtual] void Raster::retryLoad ()
Reimplements: Loadable::retryLoad().
See Loadable.