- URL:https://<geoanalytics-url>/MergeLayers
- Version Introduced:10.7
Description
The MergeLayers operation combines two feature layers to create a single output layer.
The tool requires that both layers have the same geometry type (tabular, point, line, or polygon). If time is enabled on one layer, the other layer must also be time enabled and have the same time type (instant or interval). The result will always contain all fields from the input layer. All fields from the merge layer will be included by default, or you can specify custom merge rules to define the resulting schema, such as the following examples:
- You have three layers, one each for England, Wales, and Scotland, and you want a single layer of Great Britain. You can use MergeLayers to combine the areas and maintain all fields from each area.
- You have two layers containing parcel information for contiguous townships. You want to combine them into a single layer, keeping only the fields that have the same name and type in the two layers.
Request parameters
Parameter | Details |
---|---|
inputLayer (Required) | The table, point, line, or polygon features to merge with the mergeLayer parameter. All fields in inputLayer will be included in the result layer. Syntax: As described in Feature input, this parameter can be one of the following:
REST examples
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mergeLayer (Required) | The table, point, line, or polygon features to merge with the inputLayer. The mergeLayer parameter must contain the same geometry type (tabular, point, line, or polygon) and the same time (none, instant, or interval) as the inputLayer parameter. All fields in mergeLayer will be included in the result layer by default, or you can define mergeAttributes to customize the resulting schema. Syntax: As described in Feature input, this parameter can be one of the following:
REST examples
|
mergingAttributes (Optional) | Defines how the fields in mergeLayer will be modified. By default, all fields from both inputs will be included in the output layer. If a field exists in one layer but not the other, the output layer will still contain the field. The output field will contain null values for the input features that did not include the field. For example, if inputLayer contains a field named TYPE, but mergeLayer does not contain TYPE, the output will contain TYPE, but its values will be null for all the features copied from mergeLayer. You can control how fields in mergeLayer are written to the output layer using the following merge types that operate on a specified mergeLayerField:
Note:To merge all fields from mergeLayer and inputLayer, use []. REST examples
|
outputName (Optional) | 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:
|
f | The response format. The default response format is html. Values: html | json |
Example usage
Below is a sample request URL for MergeLayers:
https://hostname.domain.com/webadaptor/rest/services/System/GeoAnalyticsTools/GPServer/MergeLayers/submitJob?predictionType=Train&inputLayer={"url":"https://hostname.domain.com/webadaptor/rest/services/Hurricane/hurricaneTrack/0"}&mergeLayer={"url":"https://hostname.domain.com/webadaptor/rest/services/Hosted/corpusShelters/0"}&mergingAttributes=[]&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>/MergeLayers/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>/MergeLayers/jobs/<jobId>/results/output?token=<your token>&f=json
Response | Description |
---|---|
output | The output layer containing the merged features.
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. |