Choose raster or feature location layer to calculate the distance to

The layer that defines the sources to which the distance will be calculated. The layer can be an image service or a feature service.

For an image service, the input type can be integer or floating point.

For a feature service, the input can be point, line, or polygon.

Maximum distance to calculate

The maximum distance to be calculated. For example, if you provide a value of 10,000 meters, the Euclidian distance will be calculated from the source locations out to that value (distance).

If no value is provided, the distance will be calculated out to the defined extent.

The available units are Kilometers, Meters, Miles, and Feet.

Output Cell Size

The cell size and unit for the output rasters.

The units can be kilometers, meters, miles, or feet.

Result distance layer name

The name of the layer that will be created in My Content and added to the map. The default name is based on the tool name and the input layer name. If the layer already exists, you will be prompted to provide another name.

You can specify the name of a folder in My Content where the result will be saved using the Save result in drop-down box. If you have the privileges to create both tiled and dynamic imagery layers, you can specify which layer type to generate in the output using the Save result as drop-down box.

Result direction layer name

The name of the layer that will be created in My Content. You must provide a name that does not currently exist in My Content.

You can specify the name of a folder in My Content where the result will be saved using the Save result in drop-down box. If you have the privileges to create both tiled and dynamic imagery layers, you can specify which layer type to generate in the output using the Save result as drop-down box.

Result Allocation layer name

The name of the layer that will be created in My Content. You must provide a name that does not currently exist in My Content.

You can specify the name of a folder in My Content where the result will be saved using the Save result in drop-down box. If you have the privileges to create both tiled and dynamic imagery layers, you can specify which layer type to generate in the output using the Save result as drop-down box.

Choose allocation field

A field on the input source layer that holds the values that define each source. It can be an integer or a string field of the source dataset.

The default is Value. If using a feature service and no Value field is available, then the first available integer or string field will be used. If no valid fields exist, the ObjectID field (for example, OID or FID, depending on the type of feature input) will be used.

Choose raster or feature layer to represent barriers

The dataset that defines the barriers.

For an image service, the input type can be integer or floating point. Any cells that have a value (including zero) will be treated as a barrier, any cells that are NoData will not be treated as a barrier.

For a feature service, the input can be point, line, or polygon.

Distance method

Determines whether to calculate the distance using a planar (flat earth) or a geodesic (ellipsoid) method.

• Planar—The calculation will be performed on a projected flat plane using a 2D Cartesian coordinate system. This is the default method.
• Geodesic—Distances are calculated on the ellipsoid. Therefore, regardless of input or output projection, the results do not change.

Result back direction layer name

The name of the layer that will be created in My Content. You must provide a name that does not currently exist in My Content.

You can specify the name of a folder in My Content where the result will be saved using the Save result in drop-down box. If you have the privileges to create both tiled and dynamic imagery layers, you can specify which layer type to generate in the output using the Save result as drop-down box.