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Combines attributes of the input features into a single list structure.

Output Ports

One feature is output for each unique combination of values of the attributes specified in the Group By parameter. Features output from this transformer have no geometry.





Suppose this transformer is used with no group-by attributes, and three features enter it with these attributes:

 Feature 0:

length = 7.3

kind = 'paved'

Feature 1:

length = 8.4

kind = ’smooth’

lanes = 2

Feature 2: 

length = 1.1

 kind = ’rough’

then, presuming that the list name specified was somelist, a single feature with these attributes is output:

somelist{0}.length = 7.3

somelist{0}.kind = ’paved’

somelist{1}.length = 8.4

somelist{1}.kind = ’smooth’

somelist{1}.lanes = 2

somelist{2}.length = 1.1

somelist{2}.kind = ’rough’

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.

Transformer Categories


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