Extracts the minimum and maximum values of the feature’s coordinates into new attributes.

It determines the extreme values of the feature in each of the x and y (and optionally z) axes, and assigns these values to the resulting attribute names.

This transformer does not change the geometry of the original feature.


As each feature enters the transformer, it has six new attributes added to it to hold the extents of the feature.

If a feature had the coordinates (1,10,100), (2,-20,150), then after leaving the transformer, it would have these new attributes with these values:

Attribute Value













Usage Notes



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.


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Keywords: MBR "minimum bounding rectangle" "neatline envelope" "Topfer index"