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api:dk11:activex:tatukgis_xdk11.itgis_layerpixel.lockestimate_itgis_extent_itgis_cscoordinatesystem_double

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ITGIS_LayerPixel.LockEstimate method

DK11 for ActiveX | TatukGIS_XDK11.ITGIS_LayerPixel.LockEstimate | Methods | Properties

Estimates memory size for pixel layer to be update.

Available also on: Delphi | .NET | Java.

Syntax

// C#
public int LockEstimate(
  ITGIS_Extent _ext,
  ITGIS_CSCoordinateSystem _cs,
  double _pixelsize
);
' VisualBasic
Public Function LockEstimate(
  ByVal _ext As ITGIS_Extent,
  ByVal _cs As ITGIS_CSCoordinateSystem,
  ByVal _pixelsize As Double
) As Integer
// Oxygene
public
  function LockEstimate(
    _ext : ITGIS_Extent;
    _cs : ITGIS_CSCoordinateSystem;
    _pixelsize : Double
  ) : Integer;

Parameters

Name Type Description
_ext ITGIS_Extent area to be locked; if bigger then layer extent then will be truncated to layer extent
_cs ITGIS_CSCoordinateSystem coordinate system of _cs; if nil then same as layer CS
_pixelsize double
Double
minimum requested size of image pixel; by providing 0 a maximum possible resolution will be used;

Result

Type Description
int
Integer
estimated size

Remarks

this particular implementation is valid only for in-memory layers

2020/05/07 01:04

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