IRemapFilter Interface

Provides access to members that control a remap filter.

Product Availability

Members

	All Properties Methods	Description
	AddClass	Adds a remap class that remaps values in [minvalue,maxvalue) to a give new value.
	AddNoDataClass	Adds a remap class that remaps values in [minvalue,maxvalue) to NoData.
	AllowUnmatched	Indicates if unmatched values should be passed through.
	ClassCount	The number of remapped classes.
	Empty	Removes all classes.
	PutClass	Puts a remap class at a given class index (starting from 0).
	QueryClass	Queries a remap class at a given class index (starting from 0).

CoClasses that implement IRemapFilter

Remarks

Provides access to the members of IRemapFilter. Similar to the reclass concept, this filters group raster pixel values into classes and creates a raster with those classes. Another benefit of this filter is that you can specify a range of values to be nodata and add it to nodataclass.

Sub remap(pRaster As iRaster, pOutWs As IWorkspace)
    Dim pFilter As IRemapFilter
    Set pFilter=New RemapFilter

    'add classes
    pFilter.AddClass 5, 20, 0
    pFilter.AddClass 20, 50, 1
    pFilter.AddClass 50, 100, 2
    pFilter.AddClass 100, 120, 3
    pFilter.AddClass 120, 150, 4
    pFilter.AddClass 150, 256, 5
   
    'add nodatdclass, all values between 0 and 5 (>= 0 and <5) will turn to nodata in the output
    pFilter.AddNoDataClass 0, 5

    Dim pSaveAs As ISaveAs
    Set pSaveAs=pRaster
   
    'set filter
    Dim pFilterOp As IPixelOperation
    Set pFilterOp=pRaster
    Set pFilterOp.PixelFilter=pFilter
   
    'save out
    pSaveAs.saveas "Remap3.img", pOutWs, "IMAGINE Image"
End Sub