Workflow Activity Pack Documentation

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Transformation | Concave


Concave takes a set of points and returns a concave hull.

Offline Support

Supported. Please contact us directly to license for offline support and installation instructions.

Example Workflow and Output Files

To open the sample workflow in Workflow Designer:
    • In Workflow Designer, click File in the sidebar
    • Click Open by URL and past in the following url:
    • To Save, click File in the Workflow Designer sidebar, and click Save.


Array of FeatureSets

Type: Object[]
Object Type: esri.FeatureSet

An array of Esri FeatureSets to convert to concave hull.

Max Edge

Type: Number

The length of and edge necessary for part of the hull to become concave.


Type: String

The units of distance for max edge.



Type: Object
success: Type: Boolean
graphic:  Type: Graphic
feature:  Type: Feature
error:  Type: String

A response object containing a success boolean, graphic, and a feature.




The activity’s ID, which is used in other activities to access the activity’s output. The ID must be unique across the entire workflow and it’s subworkflows – two activities cannot have the same ID.

You might want to change the ID to shorten it. Shorter IDs make expressions more compact.

Display Name


The activity’s name in Workflow Designer. The display name appears at the top of the activity on the design surface. The default display name for this activity is Feature to Spreadsheet.

You might want to change the display name to a name that describes what the activity does in the context of your workflow. Description names make workflows easier to understand and maintain.



A description of what the activity does. The description appears below the activity’s display name.

Use the description to record what the activity does in the context of the workflow. Descriptions make workflows easier to understand and maintain.

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