VectorLayer.UseSpatialIndex

UseSpatialIndex(string, bool)

Loads spatial index to speed up filtering by attributes value in filter methods like WhereIntersects and NearestTo. If index does not exist creates it first. Use forceRebuild to force index recreation.

public void UseSpatialIndex(string indexPath, bool forceRebuild = false)

Parameter	Type	Description
indexPath	String	Path to the index file.
forceRebuild	Boolean	Whether to recreate index even if it already exists.

Exceptions

exception	condition
ArgumentNullException	Path is null.
IOException	An I/O error occurred.
InvalidOperationException	Spatial index is already loaded for this layer.
GisException	File exists and it is not a spatial index file created by Aspose.GIS.

See Also

• class VectorLayer
• namespace Aspose.Gis
• assembly Aspose.GIS

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UseSpatialIndex(AbstractPath, bool)

Loads spatial index to speed up filtering by attributes value in filter methods like WhereIntersects and NearestTo. If index does not exist creates it first. Use forceRebuild to force index recreation.

public virtual void UseSpatialIndex(AbstractPath indexPath, bool forceRebuild = false)

Parameter	Type	Description
indexPath	AbstractPath	Path to the index file.
forceRebuild	Boolean	Whether to recreate index even if it already exists.

Exceptions

exception	condition
ArgumentNullException	Path is null.
IOException	An I/O error occurred.
InvalidOperationException	Spatial index is already loaded for this layer.
GisException	File exists and it is not a spatial index file created by Aspose.GIS.

See Also

• class AbstractPath
• class VectorLayer
• namespace Aspose.Gis
• assembly Aspose.GIS