DK11 for Java | tatukgis.jdk.TGIS_LayerVector.Loop | Overloads | Constructors | Fields | Methods | Properties | Events
Prepares enumerator (also known as iterator or cursor) to iterate the layer.
// Java public TGIS_LayerVectorEnumeratorFactory Loop( TGIS_Extent _extent, java.lang.String _query, TGIS_Shape _shape, java.lang.String _de9im );
// Oxygene public function Loop( _extent : TGIS_Extent; _query : String; _shape : TGIS_Shape; _de9im : String ) : TGIS_LayerVectorEnumeratorFactory; virtual;
Name | Type | Description |
---|---|---|
_extent | TGIS_Extent | extent of items to be found; expected _extent units are in a Layer coordinate space |
_query | java.lang.String String | 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 | TGIS_Shape | if not nil, then only shapes matched _de9im matrix with _shape will be found |
_de9im | java.lang.String String | DE-9IM matrix of comparison |
Type | Description |
---|---|
TGIS_LayerVectorEnumeratorFactory | Shape itself or nil. |