Replaces feature geometry with a box or cube that spans the extents of the feature.

Jump to Configuration

Typical Uses

  • Determining the extents of individual features

How does it work?

The BoundingBoxReplacer receives features with any geometry type and individually replaces their geometry with one of:

  • 2D Bounding Box - the minimum enclosing rectangle, with sides parallel to the x and y axes.

  • 2D Oriented Bounding Box - rotated to fit the feature as tightly as possible while remaining a rectangle.

  • 3D Bounding Cube - the minimum enclosing cube for 3D features, including point clouds. The cube is axis-aligned.

Requesting 2D bounding boxes for 3D features produces footprints. Requesting a 3D bounding cube for a 2D feature produces a 2D box.

If an output bounding box or cube has zero area (if the input feature is a single point or vertical line, for example), it will become a point or line as appropriate.

Feature attributes are retained.


Usage Notes

Creating Boxes and Rectangles

Creating rectangular geometry is a common task. These transformers do so in a variety of ways.


Input Ports

Output Ports


Editing Transformer Parameters

Using a set of menu options, transformer parameters can be assigned by referencing other elements in the workspace. More advanced functions, such as an advanced editor and an arithmetic editor, are also available in some transformers. To access a menu of these options, click beside the applicable parameter. For more information, see Transformer Parameter Menu Options.

Defining Values

There are several ways to define a value for use in a Transformer. The simplest is to simply type in a value or string, which can include functions of various types such as attribute references, math and string functions, and workspace parameters. There are a number of tools and shortcuts that can assist in constructing values, generally available from the drop-down context menu adjacent to the value field.

Dialog Options - Tables

Transformers with table-style parameters have additional tools for populating and manipulating values.


Processing Behavior


Feature Holding


Dependencies None

FME Community

The FME Community is the place for demos, how-tos, articles, FAQs, and more. Get answers to your questions, learn from other users, and suggest, vote, and comment on new features.

Search for all results about the BoundingBoxReplacer on the FME Community.


Examples may contain information licensed under the Open Government Licence – Vancouver and/or the Open Government Licence – Canada.