- URL:
- https://<rasteranalysistools-url>/LinearSpectralUnmixing
- Methods:
GET
- Version Introduced:
- 10.8
Description
The Linear
task performs subpixel classification and calculates the fractional abundance of end members for individual pixels.
Request parameters
Parameter | Details |
---|---|
(Required) | The portal item ID, image service URL, cloud raster dataset, or shared raster dataset that will be added to the image collection. At least one type of input needs to be provided in the JSON object. If multiple inputs are given, the Syntax: A JSON object describes the input raster.
|
(Required) | Output hosted image service properties. If the hosted image service is already created, the portal item ID or service URL can be given to the service tool. The output path of the raster dataset generated in the raster store will be used to update the existing service definition. The service tool can also generate new hosted image service with the given service properties. The output hosted image service is stored in raster store and shared on either the Raster Analysis Image Server or Image Hosting Image Server depending on the Enterprise configuration. Syntax: JSON object describes the output raster. At least one type of input needs to be provided in the JSON object. If multiple inputs are given, the Example:
|
(Required) | The spectral information for the different land cover classes. This should be specified in JSON format. Syntax: JSON format. Example
|
(Optional) | List of options to define the output pixel values.
Syntax: A list representing the value option. Example
|
(Optional) | Contains additional settings that affect task execution. This task has the following settings:
|
|
The response format. The default response format is html. Values: |
Example usage
The following is a sample request URL for Linear
:
https://services.myserver.com/arcgis/rest/services/System/RasterAnalysisTools/GPServer/LinearSpectralUnmixing
Response
When you submit a request, the task assigns a unique job ID for the transaction.
Syntax:
{ "jobId": "<unique job identifier>", "jobStatus": "<job status>" }
After the initial request is submitted, you can use the job
to periodically check the status of the job and messages, as described in Check job status. Once the job has successfully completed, use the job
to retrieve the results. To track the status, you can make a request of the following form:
https://<rasterAnalysisTools-url>/LinearSpectralUnmixing/jobs/<jobId>
When the status of the job request is esri
, you can access the results of the analysis by making a request of the following form:
https://<rasterAnalysisTools-url>/LinearSpectralUnmixing/jobs/<jobId>/results/result
JSON Response example
The response returns the results
output parameter, which has properties for parameter name, data type, and value. The content of value is always the image service URL.
{
"paramName": "result",
"dataType": "GPString",
"value": {
"itemId":"1780d648db3545bba8661ad98df824a4",
"url": "https://<server name>/arcgis/rest/services/Hosted/<service name>/ImageServer"
}
}