ETG_ConstantRaster

Create Random Raster

Creates an integer raster with random values in user defined range, cell size and extent. The extent can be imported from an existing feature dataset, raster or TIN.

Inputs:

Output raster name and format.
Minimum and Maximum values that indicate the range of random values to be assigned to the cells of the output raster.
Cell Size of the output raster.
Reference dataset (feature, raster or TIN). The reference dataset will be used for assigning of spatial reference and extent of the output raster.
Custom extent for the output raster (optional) - X min, X max, Y min, Y max.

Outputs:

An integer raster. Depending on the range specified, the output might be:

SHORT - signed 16 bit integer (values between -32768 and 32768).
LONG - signed 32 bit integer (values out of the range above).

Notes:

If custom extent is specified, the output raster will be created with it.
When custom extent is not specified, the output raster will have the extent of the reference dataset.
The spatial reference of the output raster will be the same as the spatial reference of the reference dataset.
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.

Running Programmatically

(Go to TOP)

Parameters

Expression	Explanation
Function Name	CreateRandomRaster
<output raster>	A String - the full name of the output raster.
<minimum value>	An Integer representing the minimum value of the output raster.
<maximum value>	An Integer representing the maximum value of the output raster.
<cell size>	A Double representing the cell size.
<reference dataset>	A String - the full path to the reference dataset.
{MinX}	A Double - minimum X of the custom extent.
{MaxX}	A Double - maximum X of the custom extent.
{MinY}	A Double - minimum Y of the custom extent.
{MinX}	A Double - maximum Y of the custom extent.

Running the function

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, "CreateRandomRaster", "output raster", "minimum value", "maximum value", "cell size", "reference dataset", "MinX", "MaxX", "MinY", "MaxY"])
.NET using ETSRun.exe	StartInfo.FileName = ETSPath StartInfo.Arguments = "CreateRandomRaster" "output raster" "minimum value" "maximum value" "cell size" "reference dataset" "MinX" "MaxX" "MinY" "MaxY"
.NET using ETSOutX.dll	CreateRandomRaster(output raster, minimum value, maximum value, cell size, reference dataset, MinX, MaxX, MinY, MaxY)
ArcPy	arcpy.CreateRandomRaster("output raster", "minimum value", "maximum value", "cell size", "reference dataset", "MinX", "MaxX", "MinY", "MaxY")

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.

(Go to TOP)