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121 lines
3.4 KiB
Plaintext
121 lines
3.4 KiB
Plaintext
/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/analysis/raster/qgskde.h *
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* *
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* Do not edit manually ! Edit header and run scripts/sipify.pl again *
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************************************************************************/
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class QgsKernelDensityEstimation
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{
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%Docstring(signature="appended")
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Performs Kernel Density Estimation ("heatmap") calculations on a vector layer.
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%End
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%TypeHeaderCode
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#include "qgskde.h"
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%End
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public:
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enum KernelShape /BaseType=IntEnum/
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{
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KernelQuartic,
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KernelTriangular,
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KernelUniform,
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KernelTriweight,
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KernelEpanechnikov,
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};
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enum OutputValues /BaseType=IntEnum/
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{
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OutputRaw,
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OutputScaled,
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};
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enum Result /BaseType=IntEnum/
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{
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Success,
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DriverError,
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InvalidParameters,
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FileCreationError,
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RasterIoError,
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};
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struct Parameters
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{
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QgsFeatureSource *source;
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double radius;
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QString radiusField;
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QString weightField;
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double pixelSize;
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QgsKernelDensityEstimation::KernelShape shape;
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double decayRatio;
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QgsKernelDensityEstimation::OutputValues outputValues;
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};
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QgsKernelDensityEstimation( const Parameters ¶meters, const QString &outputFile, const QString &outputFormat );
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%Docstring
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Constructor for QgsKernelDensityEstimation. Requires a Parameters object specifying the options to use
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to generate the surface. The output path and file format are also required.
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%End
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Result run();
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%Docstring
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Runs the KDE calculation across the whole layer at once. Either call this method, or manually
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call :py:func:`~QgsKernelDensityEstimation.run`, :py:func:`~QgsKernelDensityEstimation.addFeature` and :py:func:`~QgsKernelDensityEstimation.finalise` separately.
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%End
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Result prepare();
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%Docstring
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Prepares the output file for writing and setups up the surface calculation. This must be called
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before adding features via :py:func:`~QgsKernelDensityEstimation.addFeature`.
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.. seealso:: :py:func:`addFeature`
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.. seealso:: :py:func:`finalise`
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%End
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Result addFeature( const QgsFeature &feature );
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%Docstring
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Adds a single feature to the KDE surface. :py:func:`~QgsKernelDensityEstimation.prepare` must be called before adding features.
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.. seealso:: :py:func:`prepare`
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.. seealso:: :py:func:`finalise`
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%End
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Result finalise();
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%Docstring
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Finalises the output file. Must be called after adding all features via :py:func:`~QgsKernelDensityEstimation.addFeature`.
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.. seealso:: :py:func:`prepare`
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.. seealso:: :py:func:`addFeature`
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%End
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private:
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QgsKernelDensityEstimation( const QgsKernelDensityEstimation &other );
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};
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/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/analysis/raster/qgskde.h *
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* *
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* Do not edit manually ! Edit header and run scripts/sipify.pl again *
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************************************************************************/
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