TGIS_StatisticsLayer class

Statistics class for vector layers.

Available also on: .NET | Java | ActiveX.

Syntax

// Delphi
type
  TGIS_StatisticsLayer = class( TGIS_StatisticsAbstract )
  end;

// C++ Builder
class PASCALIMPLEMENTATION TGIS_StatisticsLayer : public TGIS_StatisticsAbstract
{
};

Inherited Overrides Protected

	Name	Visibility	Description
	Create	public	Create an object.

Inherited Overrides Protected

Name	Visibility	Description
Add	public	Adds statistics result definition. _{(Inherited from TGIS_StatisticsAbstract)}
AddAll	public	Adds statistics result definitions for all available datasets. _{(Inherited from TGIS_StatisticsAbstract)}
Calculate	public	Calculate requested statistics from the entire layer. _{(Inherited from TGIS_StatisticsAbstract)}
doCreate	protected	"private constructor" _{(Inherited from TGIS_StatisticsAbstract)}
Get	public	Get statistics result by name. _{(Inherited from TGIS_StatisticsAbstract)}
LoadFromFile	public	Parse statistics file and load all information into parent layer. _{(Inherited from TGIS_StatisticsAbstract)}
Reset	public	Resets statistics object to initial state. _{(Inherited from TGIS_StatisticsAbstract)}
ResetModified	public	Undo changes in requested statistics definitions. _{(Inherited from TGIS_StatisticsAbstract)}
SaveToFile	public	Save layer statistics into auxiliary file. _{(Inherited from TGIS_StatisticsAbstract)}

Inherited Protected

Name	Visibility	Description
Age	public	Age of the statistics. _{(Inherited from TGIS_StatisticsAbstract)}
AvailableResults	public	List of available results names; read-only. _{(Inherited from TGIS_StatisticsAbstract)}
DefinedResults	public	List of already defined results names; read-only. _{(Inherited from TGIS_StatisticsAbstract)}
FastStatistics	public	Determines the state if 'Fast Statistics' was computed; read-only. _{(Inherited from TGIS_StatisticsAbstract)}
Layer	public	Layer assigned to statistics; read-only.
Modified	public	True if requested statistics have changed. _{(Inherited from TGIS_StatisticsAbstract)}
Obsolete	public	Check validity of statistics. _{(Inherited from TGIS_StatisticsAbstract)}
UseBesselCorrection	public	If True, statistics class will use Bessel's correction. _{(Inherited from TGIS_StatisticsAbstract)}

Inherited Protected

	Name	Visibility	Description
	BusyEvent	published