Calculates a GOID (Geographic Object IDentifier) for each incoming feature, and adds it as a new attribute.

The GOID is a unique 128-bit number that incorporates the position of a feature with other numbers. The result is a unique value that may be used to distinguish features from each other. The 128-bit GOID is composed of 32 hex digits in an ASCII string. The first 16 characters correspond to the position (as defined by the first two coordinates of the feature), the next 10 to the time, the next 4 to the sequence number.

This transformer is similar to the UniqueIdentifierGenerator, which generates a completely unique ID unrelated to location for each feature.



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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