Provides access to members that control a remap filter.
Members
| Name | 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). |
IRemapFilter.AddClass Method
Adds a remap class that remaps values in [minvalue,maxvalue) to a give new value.
Public Sub AddClass ( _
ByVal minvalue As Double, _
ByVal maxvalue As Double, _
ByVal newvalue As Double _
)
public void AddClass (
double minvalue,
double maxvalue,
double newvalue
);
IRemapFilter.AddNoDataClass Method
Adds a remap class that remaps values in [minvalue,maxvalue) to NoData.
Public Sub AddNoDataClass ( _
ByVal minvalue As Double, _
ByVal maxvalue As Double _
)
public void AddNoDataClass (
double minvalue,
double maxvalue
);
IRemapFilter.AllowUnmatched Property
Indicates if unmatched values should be passed through.
Public Property AllowUnmatched As Boolean
public bool AllowUnmatched {get; set;}
IRemapFilter.ClassCount Property
The number of remapped classes.
Public ReadOnly Property ClassCount As Integer
public int ClassCount {get;}
IRemapFilter.Empty Method
Removes all classes.
Public Sub Empty ( _
)
public void Empty (
);
IRemapFilter.PutClass Method
Puts a remap class at a given class index (starting from 0).
Public Sub PutClass ( _
ByVal Index As Integer, _
ByVal minvalue As Double, _
ByVal maxvalue As Double, _
ByVal newvalue As Double _
)
public void PutClass (
int Index,
double minvalue,
double maxvalue,
double newvalue
);
IRemapFilter.QueryClass Method
Queries a remap class at a given class index (starting from 0).
Public Sub QueryClass ( _
ByVal Index As Integer, _
ByRef minvalue As Double, _
ByRef maxvalue As Double, _
ByRef newvalue As Double _
)
public void QueryClass (
int Index,
ref double minvalue,
ref double maxvalue,
ref double newvalue
);
Classes that implement IRemapFilter
| Classes | Description |
|---|---|
| RemapFilter | A class for remap filter. |
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 IRemapFilterSet pFilter = New RemapFilter
'add classespFilter.AddClass 5, 20, 0pFilter.AddClass 20, 50, 1pFilter.AddClass 50, 100, 2pFilter.AddClass 100, 120, 3pFilter.AddClass 120, 150, 4pFilter.AddClass 150, 256, 5'add nodatdclass, all values between 0 and 5 (>= 0 and <5) will turn to nodata in the outputpFilter.AddNoDataClass 0, 5
Dim pSaveAs As ISaveAsSet pSaveAs = pRaster'set filterDim pFilterOp As IPixelOperationSet pFilterOp = pRasterSet pFilterOp.PixelFilter = pFilter'save outpSaveAs.saveas "Remap3.img", pOutWs, "IMAGINE Image"End Sub