ETG_EuclideanDirection

Euclidean Direction

Calculates for each cell of the output raster the direction to the closest point (source) of the input feature class. If the input feature class is of Polyline or Polygon type, the vertices will be used as sources..

Inputs:

Input point, polyline or polygon feature dataset
Output raster name and format
The cell size of the output raster.

Outputs:

A floating point raster. Each cell will have as a value the direction in degrees to the closest input point (Source). The extent of the output is equal to the extent of the input feature dataset.

Example:

Notes:

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 - image.
- The initial output raster format can be changed by selecting the desired output in the dialog.

Running Programmatically

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Parameters

Expression	Explanation
Function Name	EucledeanDirection
<InputFeatures>	A String - the full path to the input feature dataset.
<output raster>	A String - the full name of the output raster.
<CellSize>	A Double representing the cell size of the output raster.

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")

CellSize

Language	Syntax
Python	subprocess.call([ETSPath, "EucledeanDirection", "InputFeatures", "output raster", "CellSize"])
.NET using ETSRun.exe	StartInfo.FileName = ETSPath StartInfo.Arguments = "EucledeanDirection" "InputFeatures" "output raster" "CellSize"
.NET using ETSOutX.dll	EucledeanDirection(InputFeatures, output raster, CellSize)
ArcPy	arcpy.EucledeanDirection("InputFeatures", "output raster", "CellSize")

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.

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