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TGIS_LayerVector.ImportLayerEx method

DK11 for Delphi | GisLayerVector.TGIS_LayerVector.ImportLayerEx | Constructors | Fields | Methods | Properties | Events

Imports a layer from an existing layer.

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


// Delphi
  procedure ImportLayerEx(
    const _layer : TGIS_LayerVector;
    const _extent : TGIS_Extent;
    const _type : TGIS_ShapeType;
    const _scope : String;
    const _shape : TGIS_Shape;
    const _de9im : String;
    const _truncated : Boolean
  ); virtual;
// C++ Builder
  virtual void ImportLayerEx(
    TGIS_LayerVector* const _layer,
    TGIS_Extent* const _extent,
    TGIS_ShapeType* const _type,
    const UnicodeString _scope,
    TGIS_Shape* const _shape,
    const UnicodeString _de9im,
    const bool _truncated


Name Type Description
_layer TGIS_LayerVector layer to be imported
_extent TGIS_Extent starting extent of layer - can't be zero sized
_type TGIS_ShapeType shape type supported by a layer; if gistypeUnknown is used then import will try to recognize shape on its own;
_scope String SQL query for which shape will be imported
_shape TGIS_Shape if not nil, then only shapes matched _de9im matrix with _shape will be found
_de9im String DE-9IM matrix of comparison
_truncated Boolean if True, then all shapes will be truncated in _extent; if False, only the shape visible in _extent will be imported ;


Remember to assign 'path' property to the layer you want to import from, for proper import of the new layer to a file.
Use this method to import a layer. To do this, simply create a new layer, choose a layer to import from and use ImportLayer method with proper params. See also the opposite method, ExportLayer.

2022/11/16 01:22

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