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ITGIS_LayerVector.Loop_4 method

DK11 for ActiveX | TatukGIS_XDK11.ITGIS_LayerVector.Loop_4 | Methods | Properties

Prepares enumerator (also known as iterator or cursor) to iterate the layer.

Available also on: Delphi | .NET | Java | Python.


// 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
  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.
2022/11/16 01:10

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