DK11 for ActiveX | TatukGIS_XDK11.ITGIS_LayerVector.Loop_4 | Methods | Properties
Prepares enumerator (also known as iterator or cursor) to iterate the layer.
// C# public ITGIS_LayerVectorEnumeratorFactory Loop_4( ITGIS_Extent _extent, WideString _query, ITGIS_Shape _shape, WideString _de9im );
' VisualBasic Public Function Loop_4( ByVal _extent As ITGIS_Extent, ByVal _query As WideString, ByVal _shape As ITGIS_Shape, ByVal _de9im As WideString ) As ITGIS_LayerVectorEnumeratorFactory
// Oxygene public function Loop_4( _extent : ITGIS_Extent; _query : WideString; _shape : ITGIS_Shape; _de9im : WideString ) : ITGIS_LayerVectorEnumeratorFactory;
Name | Type | Description |
---|---|---|
_extent | ITGIS_Extent | extent of items to be found; expected _extent units are in a Layer coordinate space |
_query | WideString | query which must be matched by item; closely mimics SQL WHERE clause; for examples you can use 'AGE >= 18'; empty (default) means that no items will match. |
_shape | ITGIS_Shape | if not nil, then only shapes matched _de9im matrix with _shape will be found |
_de9im | WideString | DE-9IM matrix of comparison |
Type | Description |
---|---|
ITGIS_LayerVectorEnumeratorFactory | Shape itself or nil. |