- URL:https://<geoanalytics-url>/DissolveBoundaries
- Version Introduced:10.7
Description
The DissolveBoundaries operation finds polygons that intersect or have the same field values and merges them to form a single polygon.
You can choose how polygons are merged by specifying one or more fields. For example, if you have a layer of study areas and each study area has a Soil_Type field, you can dissolve boundaries using the Soil_Type field. Adjacent study areas will be merged if they have the same value for Soil_Type. The end result is a layer of study areas classified by soil type.
Request parameters
Parameter | Details |
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inputLayer (Required) | The layer containing polygon features that will be dissolved.
REST Examples
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dissolveFields (Optional) | One or more fields in the inputLayer that determine how polygons are merged based on field value. If you don't specify fields, polygons that intersect will be dissolved into one polygon by default. If you do specify fields, polygons that share the same value for each of the specified fields will be dissolved into one polygon. REST Examples
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summaryFields (Optional) | A list of field names and statistical summary types you want to calculate. Note that the count is always returned. By default, all statistics are returned. onStatisticField specifies the name of the fields in the target layer. statisticType can be specified as one of the following:
REST Examples
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multipart (Optional) | A Boolean specifies whether multipart features are allowed in the output feature class. If true is specified, multipart features are allowed. If false is specified, multipart features are not allowed. Instead of creating multiple features, individual features will be created for each part. The default value is false. Values: true | false REST Examples
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outputName (Required) | The task will create a feature service of the results. You define the name of the service. REST Examples
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context (Optional) | The context parameter contains additional settings that affect task execution. For this task, there are five settings:
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f | The response format. The default response format is html. Values: html | json |
Example usage
Below is a sample request URL for DissolveBoundaries:
https://webadaptor.domain.com/server/rest/services/System/GeoAnalyticsTools/GPServer/DissolveBoundaries/submitJob?inputLayer={"url":"https://webadaptor.domain.com/server/rest/services/Hurricane/hurricaneTrack/0"}&dissolveFields=State_Name, District&summaryFields=[{"statisticType": "Mean", "onStatisticField": "Wind_Speed"},{"statisticType": "Sum", "onStatisticField": "Pressure"}]&multipart=false&outputName=myOutput&context={"extent":{"xmin":-122.68,"ymin":45.53,"xmax":-122.45,"ymax":45.6,"spatialReference":{"wkid":4326}}}&f=json
Response
When you submit a request, the service assigns a unique job ID for the transaction.
{
"jobId": "<unique job identifier>",
"jobStatus": "<job status>"
}
After the initial request is submitted, you can use jobId to periodically check the status of the job and messages as described in Check job status. Once the job has successfully completed, use jobId to retrieve the results. To track the status, you can make a request of the following form:
https://<analysis url>/DissolveBoundaries/jobs/<jobId>
Access results
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://<analysis-url>/DissolveBoundaries/jobs/<jobId>/results/output?token=<your token>&f=json
Response | Description |
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output | output returns the dissolved features as polygons. If a summaryFields parameter is specified in the task request, the layer will compute the Count statistics, as well as anything in the summaryFields. These statistics are only calculated on the dissolved fields. The result has properties for parameter name, data type, and value. The contents of value depend on the outputName parameter provided in the initial request. The value contains the URL of the feature service layer. See Feature output for more information about how the result layer is accessed. |