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

StretchRenderer Class | ArcGIS Maps SDK for Qt

  • StretchRenderer
  • class Esri::ArcGISRuntime::StretchRenderer

    A stretch renderer enhances the visual contrast of raster data in a RasterLayer. More...

    Public Functions StretchRenderer(const Esri::ArcGISRuntime::StretchParameters &stretchParameters, const QList<double> &gammas, bool estimateStats, Esri::ArcGISRuntime::ColorRamp *colorRamp, QObject *parent = nullptr) StretchRenderer(const Esri::ArcGISRuntime::StretchParameters &stretchParameters, const QList<double> &gammas, bool estimateStats, Esri::ArcGISRuntime::PresetColorRampType presetColorRampType, QObject *parent = nullptr) virtual ~StretchRenderer() override Esri::ArcGISRuntime::ColorRamp * colorRamp() const Detailed Description

    A stretch renderer displays continuous raster cell values across a gradual ramp of colors. Use it to draw a single band of continuous data. The stretch renderer works well when you have a large range of values to display, such as in imagery, aerial photographs, or elevation models.

    Stretching improves the appearance of the raster data by spreading its pixel values along a histogram whose minimum and maximum values are defined by the raster's bit depth. For example, an 8-bit raster dataset will be stretched along a histogram from 0 to 255.

    Relevant samples:

    See also RasterRenderer.

    Member Function Documentation StretchRenderer::StretchRenderer(const Esri::ArcGISRuntime::StretchParameters &stretchParameters, const QList<double> &gammas, bool estimateStats, Esri::ArcGISRuntime::ColorRamp *colorRamp, QObject *parent = nullptr)

    Creates a stretch renderer.

    StretchRenderer::StretchRenderer(const Esri::ArcGISRuntime::StretchParameters &stretchParameters, const QList<double> &gammas, bool estimateStats, Esri::ArcGISRuntime::PresetColorRampType presetColorRampType, QObject *parent = nullptr)

    Creates a stretch renderer.

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

    Destructor.

    Esri::ArcGISRuntime::ColorRamp *StretchRenderer::colorRamp() const

    The ColorRamp object used to create this StretchRenderer.


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