Description

The Fill task fills sinks in a surface raster to remove small imperfections in the data.

A sink is a cell with an undefined drainage direction; no cells surrounding it are lower. The pour point is the boundary cell with the lowest elevation for the contributing area of a sink. If the sink was filled with water, this is the point where water would pour out.

The z-limit specifies the maximum difference allowed between the depth of a sink and the pour point and determines which sinks will be filled and which will remain untouched. The z-limit is not the maximum depth to which a sink will be filled.

For example, consider a sink area where the pour point is 210 feet in elevation, and the deepest point within the sink is 204 feet (a difference of 6 feet). If the z-limit is set to 8, this particular sink will be filled. However, if the z-limit is set to 4, this sink will not be filled; since the depth of this sink exceeds this difference, it would be considered a valid sink.

All sinks that are less than the z-limit, and lower than their lowest adjacent neighbor, will be filled to the height of their pour points.

Request parameters

//Portal item as input raster
"inputSurfaceRaster": {"itemId": <portal item id>}

//URL as input raster
"inputSurfaceRaster": {"url": <image service layer url>}

"outputName":{"serviceProperties":{"name":"testrasteranalysis"}}

//Output portal item:
"outputName":{"itemId": <portal item id>}

//Output url:
"outputName":{"url": <image service url}

//Output raster layer service:
"outputName":{"serviceProperties":
  {"name":"testrasteranalysis",
    "serviceUrl":"https://<server name>/server/rest/services/Hosted/testrasteranalysis/ImageServer"},
  "itemProperties":{"itemId":"8cfbd3ec25584d0d8f4ed23b8ff7c43b","folderId":"sdfwerfbd3ec25584d0d8f4"}
}

Response

When you submit a request, the task assigns a unique job ID for the transaction.

{
  "jobId": "<unique job identifier>",
  "jobStatus": "<job status>"
}

After the initial request is submitted, you can use the jobId to periodically check the status of the job and messages as described in Checking job status. Once the job has successfully completed, you use the jobId to retrieve the results. To track the status, you can make a request of the following form:

https://<raster analysis tools url>/Fill/jobs/<jobId>

When the status of the job request is esriJobSucceeded, you can access the results of the analysis by making a request of the following form:

https://<raster analysis tools url>/Fill/jobs/<jobId>/results/outputRaster

Example usage

Below is a sample request URL for Fill.

https://services.myserver.com/arcgis/rest/services/System/RasterAnalysisTools/GPServer/Fill/submitJob

JSON Response example

The response returns the outputRaster output parameter, which has properties for parameter name, data type, and value. The content of value is always the output raster dataset itemId and the image service URL.

{
  "paramName": "outRaster",
  "dataType": "GPString",
  "value": {
    "itemId": "f121390b85ef419790479fc75b493efd", 
    "url": "https://<server name>/arcgis/rest/services/Hosted/<service name>/ImageServer"
  }
}