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112 lines
3.6 KiB
Plaintext
112 lines
3.6 KiB
Plaintext
/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/core/mesh/qgsmeshspatialindex.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 QgsMeshSpatialIndex
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{
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%Docstring(signature="appended")
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A spatial index for :py:class:`QgsMeshFace` or :py:class:`QgsMeshEdge` objects.
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:py:class:`QgsMeshSpatialIndex` objects are implicitly shared and can be inexpensively copied.
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.. note::
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While the underlying libspatialindex is not thread safe on some platforms, the :py:class:`QgsMeshSpatialIndex`
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class implements its own locks and accordingly, a single :py:class:`QgsMeshSpatialIndex` object can safely
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be used across multiple threads
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.. seealso:: :py:class:`QgsSpatialIndex`
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.. versionadded:: 3.6
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%End
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%TypeHeaderCode
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#include "qgsmeshspatialindex.h"
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%End
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public:
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QgsMeshSpatialIndex();
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%Docstring
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Constructor for :py:class:`QgsSpatialIndex`. Creates an empty R-tree index.
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%End
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explicit QgsMeshSpatialIndex( const QgsMesh &mesh, QgsFeedback *feedback = 0, QgsMesh::ElementType elementType = QgsMesh::ElementType::Face );
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%Docstring
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Constructor - creates R-tree and bulk loads faces or edges from the specified mesh
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Not implemented to construct R-tree for vertices
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Since QGIS 3.14 possibility to create R-tree for edges
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The optional ``feedback`` object can be used to allow cancellation of bulk face loading. Ownership
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of ``feedback`` is not transferred, and callers must take care that the lifetime of feedback exceeds
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that of the spatial index construction.
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%End
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QgsMeshSpatialIndex( const QgsMeshSpatialIndex &other );
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%Docstring
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Copy constructor
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%End
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~QgsMeshSpatialIndex();
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QList<int> intersects( const QgsRectangle &rectangle ) const;
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%Docstring
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Returns a list of face ids with a bounding box which intersects the specified ``rectangle``.
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.. note::
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The intersection test is performed based on the face bounding boxes only, so it is necessary
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to manually test the returned faces for exact geometry intersection when required.
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%End
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QList<int> nearestNeighbor( const QgsPointXY &point, int neighbors ) const;
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%Docstring
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Returns nearest neighbors to a ``point``. The number of neighbours returned is specified
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by the ``neighbours`` argument.
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.. note::
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The nearest neighbour test is performed based on the face bounding boxes only,
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so this method is not guaranteed to return the actual closest neighbours.
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%End
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QgsMesh::ElementType elementType() const;
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%Docstring
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Returns the type of mesh elements that are indexed
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.. versionadded:: 3.14
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%End
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void addFace( int faceIndex, const QgsMesh &mesh );
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%Docstring
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Adds a face with ``faceIndex`` from the ``mesh`` in the spatial index
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%End
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void removeFace( int faceIndex, const QgsMesh &mesh );
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%Docstring
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Removes a face with ``faceIndex`` from the ``mesh`` in the spatial index
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%End
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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/core/mesh/qgsmeshspatialindex.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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