ETG_ChangeRasterType

Change Raster Data Type

Changes the data type of the input raster to the output type specified by the user.

A raster of the specified data type.
The NODATA of the output will be:
- The same as the NODATA value of the input if it is within the range of the selected output type.
- Assigned automatically based on the selected output type if the input NODATA value is out of the range of the output data type selected.
- If the input raster has values that are out of the range of the output data type, these values will be stored as NODATA.

If the input raster is of floating point type and the output type selected is "Byte"

The output raster will have NODATA = 255
The output raster will have values only in the cells where the original raster has values between 0 and 254 and these values will be rounded to the closest integer. The rest of the cells will have NODATA value.

The input format accepted are file based rasters - ERDAS IMAGINE or Tagged Image File Format (TIFF).
The .NET ToolBox for ArcGIS Desktop accepts also FileGDB Raster inputs.
For file based rasters initially the name of the output raster define the raster format:
- .img extension (for example raster1.img) - ERDAS IMAGINE image.
- .tif extension (for example raster1.tif) - TIFF image.
- The initial output raster format can be changed by selecting the desired output in the dialog.

Parameters

Expression	Explanation
Function Name	ChangeRasterType
<input raster>	A String representing the input raster dataset.
<output raster>	A String - the full name of the output raster.
<output data type>	A String indicating the output data type. Valid inputs are: "Byte", "Short", "Unsignedshort", "Long", "Unsignedlong", "Single", "Double"

ETSPath used in the table below is the full path to ETSRun.exe (E.G. "C:\Program Files\ETSpatial Techniques\ETSurface\ETSRun.exe")

Language	Syntax
Python	subprocess.call([ETSPath, "ChangeRasterType", "input raster", "output raster", "output data type"])
.NET using ETSRun.exe	StartInfo.FileName = ETSPath StartInfo.Arguments = "ChangeRasterType" "input raster" "output raster" "output data type"
.NET using ETSOutX.dll	ChangeRasterType(input raster, output raster, output data type)
ArcPy	arcpy.ChangeRasterType("input raster", "output raster" , "output data type")

Notes:

<> - required parameter
{} - optional parameter
See examples for Python , .NET or ArcPy
The argument separator for StartInfo.Arguments is space. If a string might contain a space, you need to double quote it.