# RouteMatrixBoundaryGeometry
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Geometry of the routing boundary.

## Contents
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 ** AutoCircle **   <a name="location-Type-RouteMatrixBoundaryGeometry-AutoCircle"></a>
 `AutoCircle` requests the route matrix service to define a `Circle` boundary that best attempts to include most waypoints (`Origins` and `Destinations`) using the `AutoCircle` settings. Any waypoints outside of the auto-defined `Circle` boundary will be considered out of the routing boundary, which results in a route matrix entry error.  
 `AutoCircle` is only used in the request to configure a `Circle` for the route calculation. The derived `Circle` will also be provided in the response.  
Type: [RouteMatrixAutoCircle](API_RouteMatrixAutoCircle.md) object  
Required: No

 ** BoundingBox **   <a name="location-Type-RouteMatrixBoundaryGeometry-BoundingBox"></a>
Geometry defined as a bounding box. The first pair represents the X and Y coordinates (longitude and latitude,) of the southwest corner of the bounding box; the second pair represents the X and Y coordinates (longitude and latitude) of the northeast corner.  
Diagonal distance of the bounding box must be less than or equal to 400,000 meters.  
Type: Array of doubles  
Array Members: Fixed number of 4 items.  
Required: No

 ** Circle **   <a name="location-Type-RouteMatrixBoundaryGeometry-Circle"></a>
Geometry defined as a circle. The circle defines the routing boundary area. Any waypoints outside the circle will result in a route matrix entry error.  
You can specify a `Circle` directly in the request, or it will be auto-derived when `AutoCircle` is used. When `AutoCircle` is set in the request, the response routing boundary will return `Circle` derived from the `AutoCircle` settings.  
Type: [Circle](API_Circle.md) object  
Required: No

 ** Polygon **   <a name="location-Type-RouteMatrixBoundaryGeometry-Polygon"></a>
Geometry defined as a polygon with only one linear ring. A linear ring is a closed sequence of four or more coordinates. The first and last coordinates are the same, forming a closed boundary. Each coordinate is a position in [longitude, latitude] format.  
The structure is an array of linear rings (only 1 allowed). Each linear ring is an array of coordinates (minimum 4), and each coordinate is an array of two doubles [longitude, latitude].  
Maximum distance between any two vertices must be less than or equal to 400,000 meters.  
Type: Array of arrays of arrays of doubles  
Array Members: Fixed number of 1 item.  
Array Members: Minimum number of 4 items.  
Array Members: Fixed number of 2 items.  
Required: No

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\+\+](https://docs.aws.amazon.com/goto/SdkForCpp/geo-routes-2020-11-19/RouteMatrixBoundaryGeometry) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/geo-routes-2020-11-19/RouteMatrixBoundaryGeometry) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/geo-routes-2020-11-19/RouteMatrixBoundaryGeometry)