GridBlank

GridBlank is superceded by GridAssignNoData. Consider using GridAssignNoData instead. GridBlank has been retained for backward compatibility.

GridBlank assigns the NoData value to grid nodes inside or outside specified boundaries. Returns a Boolean. If the value is 'True', the grid was assigned the NoData value. If the value is 'False', the grid was not assigned any NoData values.

Syntax

object.GridBlank( InGrid, BlankFile, OutGrid, OutFmt )

Parameter	Type	Required/ Optional	Default	Description
InGrid	String	Required		This provides the path and file name of the input grid file.
BlankFile	String	Optional	""	This provides the path and file name of the input blanking file [.BLN] file.
OutGrid	String	Required	""	This provides the path and file name of the output grid file.
OutFmt	SrfGridFormat	Optional		This specifies the output grid format.

Remarks

See Golden Software Blanking File Description for more information on BLN files used for BlankFile.

Example 1

This example demonstrates how to assign the NoData value to the middle of demogrid.grd and saves the grid as

dgrid1.grd.SurferApp.GridBlank(InGrid:= SurferApp.Path+"\Samples\demogrid.grd", _

NoData:= SurferApp.Path+"\Samples\demogrid.bln", _

OutGrid:="c:\temp\dgrid1.grd", OutFmt:=srfGridFmtS7)

Example 2

This script displays all the methods in the Application object.

Used by: Application object