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TGIS_LayerVector.Build(string, TGIS_Extent, TGIS_ShapeType) method

DK11 for .NET | TatukGIS.NDK.TGIS_LayerVector.Build | Overloads | Constructors | Fields | Methods | Properties | Events

Builds a new layer - prepares storage.

Available also on: Delphi | Java | ActiveX.


// C#
public void Build(
  string _path,
  TGIS_Extent _extent,
  TGIS_ShapeType _type
' VisualBasic
Public Sub Build(
  ByVal _path As String,
  ByVal _extent As TGIS_Extent,
  ByVal _type As TGIS_ShapeType
// Oxygene
  procedure Build(
    _path : String;
    _extent : TGIS_Extent;
    _type : TGIS_ShapeType
  ); virtual;


Name Type Description
_path string
full path of layer to be built; a connection string for SQL base shapes;
_extent TGIS_Extent starting extent of layer - can't be zero sized
_type TGIS_ShapeType shape type supported by a layer


Use this method to build a new layer (prepare storage). Depending on the layer type, different files are created or used. For GIS_LayerSHP there are .shp and .dbf files. GIS_LayerSQLAbstract uses .ttkls files.

To add a new layer to the viewer, simply create a layer, use Build method with proper params, fill needed layer properties, and use the viewer Add method.


Here is a simple procedure to add a new layer to the viewer.


2020/05/07 01:18

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