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/************************************************************************
* This file has been generated automatically from *
* *
* src/core/pointcloud/qgspointclouddataprovider.h *
* *
* Do not edit manually ! Edit header and run scripts/sipify.py again *
************************************************************************/
class QgsPointCloudDataProvider: QgsDataProvider
{
%Docstring(signature="appended")
Base class for providing data for :py:class:`QgsPointCloudLayer`
Responsible for reading native point cloud data and returning the
indexed data.
.. note::
The API is considered EXPERIMENTAL and can be changed without a notice
.. versionadded:: 3.18
%End
%TypeHeaderCode
#include "qgspointclouddataprovider.h"
%End
public:
enum Capability /BaseType=IntEnum/
{
NoCapabilities,
ReadLayerMetadata,
WriteLayerMetadata,
CreateRenderer,
ContainSubIndexes,
};
typedef QFlags<QgsPointCloudDataProvider::Capability> Capabilities;
enum PointCloudIndexGenerationState /BaseType=IntEnum/
{
NotIndexed,
Indexing,
Indexed
};
QgsPointCloudDataProvider( const QString &uri,
const QgsDataProvider::ProviderOptions &providerOptions,
Qgis::DataProviderReadFlags flags = Qgis::DataProviderReadFlags() );
%Docstring
Ctor
%End
~QgsPointCloudDataProvider();
SIP_PYLIST identify( float maxErrorInMapCoords, QgsGeometry extentGeometry, const QgsDoubleRange extentZRange = QgsDoubleRange(), int pointsLimit = 1000 );
%Docstring
Returns the list of points of the point cloud according to a zoom level
defined by ``maxError`` (in layer coordinates), an extent ``geometry``
in the 2D plane and a range ``extentZRange`` for z values. The function
will try to limit the number of points returned to ``pointsLimit``
points
.. note::
this function does not handle elevation properties and you need to
change elevation coordinates yourself after returning from the function
%End
%MethodCode
{
QVector<QMap<QString, QVariant>> res = sipCpp->identify( a0, *a1, *a2, a3 );
sipRes = PyList_New( res.size() );
for ( int i = 0; i < res.size(); ++i )
{
PyObject *dict = PyDict_New();
for ( QString key : res[i].keys() )
{
PyObject *keyObj = sipConvertFromNewType( new QString( key ), sipType_QString, Py_None );
PyObject *valObj = sipConvertFromNewType( new QVariant( res[i][key] ), sipType_QVariant, Py_None );
PyDict_SetItem( dict, keyObj, valObj );
}
PyList_SET_ITEM( sipRes, i, dict );
}
}
%End
virtual QgsPointCloudDataProvider::Capabilities capabilities() const;
%Docstring
Returns flags containing the supported capabilities for the data
provider.
%End
virtual QgsPointCloudAttributeCollection attributes() const = 0;
%Docstring
Returns the attributes available from this data provider. May return
empty collection until
:py:func:`~QgsPointCloudDataProvider.pointCloudIndexLoaded` is emitted
%End
virtual void loadIndex( ) = 0;
%Docstring
Triggers loading of the point cloud index
.. seealso:: :py:func:`index`
%End
virtual void generateIndex( ) = 0;
%Docstring
Triggers generation of the point cloud index
emits :py:func:`~QgsPointCloudDataProvider.indexGenerationStateChanged`
.. seealso:: :py:func:`index`
%End
virtual PointCloudIndexGenerationState indexingState( ) = 0;
%Docstring
Gets the current index generation state
%End
bool hasValidIndex() const;
%Docstring
Returns whether provider has index which is valid
%End
virtual qint64 pointCount() const = 0;
%Docstring
Returns the total number of points available in the dataset.
%End
virtual QgsGeometry polygonBounds() const;
%Docstring
Returns the polygon bounds of the layer. The CRS of the returned
geometry will match the provider's
:py:func:`~QgsPointCloudDataProvider.crs`.
This method will return the best approximation for the actual bounds of
points contained in the dataset available from the provider's metadata.
This may match the bounding box rectangle returned by
:py:func:`~QgsPointCloudDataProvider.extent`, or for some datasets a
"convex hull" style polygon representing a more precise bounds will be
returned.
This method will not attempt to calculate the data bounds, rather it
will return only whatever precomputed bounds are included in the data
source's metadata.
%End
virtual QVariantMap originalMetadata() const;
%Docstring
Returns a representation of the original metadata included in a point
cloud dataset.
This is a free-form dictionary of values, the contents and structure of
which will vary by provider and dataset.
%End
virtual QgsPointCloudRenderer *createRenderer( const QVariantMap &configuration = QVariantMap() ) const /Factory/;
%Docstring
Creates a new 2D point cloud renderer, using provider backend specific
information.
The ``configuration`` map can be used to pass provider-specific
configuration maps to the provider to allow customization of the
returned renderer. Support and format of ``configuration`` varies by
provider.
When called with an empty ``configuration`` map the provider's default
renderer will be returned.
This method returns a new renderer and the caller takes ownership of the
returned object.
Only providers which report the CreateRenderer capability will return a
2D renderer. Other providers will return ``None``.
%End
virtual bool hasStatisticsMetadata() const;
%Docstring
Returns whether the dataset contains statistics metadata
.. versionadded:: 3.26
%End
SIP_PYOBJECT metadataStatistic( const QString &attribute, Qgis::Statistic statistic ) const;
%Docstring
Returns a statistic for the specified ``attribute``, taken only from the
metadata of the point cloud data source.
This method will not perform any statistical calculations, rather it
will return only precomputed attribute statistics which are included in
the data source's metadata. Not all data sources include this
information in the metadata, and even for sources with statistical
metadata only some ``statistic`` values may be available.
:raises ValueError: if no matching precalculated statistic is available
for the attribute.
%End
%MethodCode
{
const QVariant res = sipCpp->metadataStatistic( *a0, a1 );
if ( !res.isValid() )
{
PyErr_SetString( PyExc_ValueError, QStringLiteral( "Statistic is not available" ).toUtf8().constData() );
sipIsErr = 1;
}
else
{
QVariant *v = new QVariant( res );
sipRes = sipConvertFromNewType( v, sipType_QVariant, Py_None );
}
}
%End
virtual QVariantList metadataClasses( const QString &attribute ) const;
%Docstring
Returns a list of existing classes which are present for the specified
``attribute``, taken only from the metadata of the point cloud data
source.
This method will not perform any classification or scan for available
classes, rather it will return only precomputed classes which are
included in the data source's metadata. Not all data sources include
this information in the metadata.
%End
SIP_PYOBJECT metadataClassStatistic( const QString &attribute, const QVariant &value, Qgis::Statistic statistic ) const;
%Docstring
Returns a statistic for one class ``value`` from the specified
``attribute``, taken only from the metadata of the point cloud data
source. This method will not perform any statistical calculations,
rather it will return only precomputed class statistics which are
included in the data source's metadata. Not all data sources include
this information in the metadata, and even for sources with statistical
metadata only some ``statistic`` values may be available.
:raises ValueError: if no matching precalculated statistic is available
for the attribute.
%End
%MethodCode
{
const QVariant res = sipCpp->metadataClassStatistic( *a0, *a1, a2 );
if ( !res.isValid() )
{
PyErr_SetString( PyExc_ValueError, QStringLiteral( "Statistic is not available" ).toUtf8().constData() );
sipIsErr = 1;
}
else
{
QVariant *v = new QVariant( res );
sipRes = sipConvertFromNewType( v, sipType_QVariant, Py_None );
}
}
%End
QgsPointCloudStatistics metadataStatistics();
%Docstring
Returns the object containing the statistics metadata extracted from the
dataset
.. versionadded:: 3.26
%End
virtual bool supportsSubsetString() const;
virtual QString subsetStringDialect() const;
virtual QString subsetStringHelpUrl() const;
virtual QString subsetString() const;
virtual bool setSubsetString( const QString &subset, bool updateFeatureCount = false );
static QMap< int, QString > lasClassificationCodes();
%Docstring
Returns the map of LAS classification code to untranslated string value,
corresponding to the ASPRS Standard Lidar Point Classes.
.. seealso:: :py:func:`translatedLasClassificationCodes`
%End
static QMap< int, QString > translatedLasClassificationCodes();
%Docstring
Returns the map of LAS classification code to translated string value,
corresponding to the ASPRS Standard Lidar Point Classes.
.. seealso:: :py:func:`lasClassificationCodes`
%End
static QMap< int, QString > dataFormatIds();
%Docstring
Returns the map of LAS data format ID to untranslated string value.
.. seealso:: :py:func:`translatedDataFormatIds`
%End
static QMap< int, QString > translatedDataFormatIds();
%Docstring
Returns the map of LAS data format ID to translated string value.
.. seealso:: :py:func:`dataFormatIds`
%End
signals:
void indexGenerationStateChanged( QgsPointCloudDataProvider::PointCloudIndexGenerationState state );
%Docstring
Emitted when point cloud generation state is changed
%End
protected:
};
/************************************************************************
* This file has been generated automatically from *
* *
* src/core/pointcloud/qgspointclouddataprovider.h *
* *
* Do not edit manually ! Edit header and run scripts/sipify.py again *
************************************************************************/
|