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

TGIS_LayerVector.Build(java.lang.String, TGIS_Extent, TGIS_ShapeType) method

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

Builds a new layer - prepares storage.

Available also on: Delphi | .NET | ActiveX.

Syntax

// Java
public void Build(
  java.lang.String _path,
  TGIS_Extent _extent,
  TGIS_ShapeType _type
);
// Oxygene
public
  procedure Build(
    _path : String;
    _extent : TGIS_Extent;
    _type : TGIS_ShapeType
  ); virtual;

Parameters

Name Type Description
_path java.lang.String
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

Remarks

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.

Example

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

References

2020/05/07 01:13