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55 lines
1.9 KiB
Plaintext
55 lines
1.9 KiB
Plaintext
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class QgsFeatureRequest
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{
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%TypeHeaderCode
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#include <qgsfeaturerequest.h>
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%End
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public:
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enum Flag
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{
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NoGeometry = 0x01, //!< Do not fetch geometry
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SubsetOfAttributes = 0x02, //!< Fetch only a subset of attributes (setSubsetOfAttributes sets this flag)
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ExactIntersect = 0x04 //!< Use exact geometry intersection (slower) instead of bounding boxes
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};
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typedef QFlags<QgsFeatureRequest::Flag> Flags;
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enum FilterType
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{
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FilterNone, //!< No filter is applied
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FilterRect, //!< Filter using a rectangle
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FilterFid //!< Filter using feature ID
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};
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//! construct a default request: for all features get attributes and geometries
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QgsFeatureRequest();
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//! construct a request with feature ID filter
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explicit QgsFeatureRequest( QgsFeatureId fid );
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//! construct a request with rectangle filter
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explicit QgsFeatureRequest( const QgsRectangle& rect );
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FilterType filterType() const;
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//! Set rectangle from which features will be taken. Empty rectangle removes the filter.
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//!
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QgsFeatureRequest& setFilterRect( const QgsRectangle& rect );
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const QgsRectangle& filterRect() const;
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//! Set feature ID that should be fetched.
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QgsFeatureRequest& setFilterFid( qint64 fid );
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qint64 filterFid() const;
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//! Set flags that affect how features will be fetched
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QgsFeatureRequest& setFlags( Flags flags );
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const Flags& flags() const;
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//! Set a subset of attributes that will be fetched. Empty list means that all attributes are used.
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//! To disable fetching attributes, reset the FetchAttributes flag (which is set by default)
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QgsFeatureRequest& setSubsetOfAttributes( const QgsAttributeList& attrs );
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const QgsAttributeList& subsetOfAttributes() const;
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//! Set a subset of attributes by names that will be fetched
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QgsFeatureRequest& setSubsetOfAttributes( const QStringList& attrNames, const QgsFields& fields );
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};
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