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api:dk11:java:tatukgis.jdk.tgis_layervector.loop_tgis_extent_string

Table of Contents

TGIS_LayerVector.Loop(TGIS_Extent, java.lang.String) method

DK11 for Java | tatukgis.jdk.TGIS_LayerVector.Loop | Overloads | Constructors | Fields | Methods | Properties | Events

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

Available also on: Delphi | .NET | ActiveX.

Syntax

// Java
public TGIS_LayerVectorEnumeratorFactory Loop(
  TGIS_Extent _extent,
  java.lang.String _query
);
// Oxygene
public
  function Loop(
    _extent : TGIS_Extent;
    _query : String
  ) : TGIS_LayerVectorEnumeratorFactory; virtual;

Parameters

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.

Result

Type Description
TGIS_LayerVectorEnumeratorFactory Shape itself or nil.

References

2018/02/17 00:18