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ListIndexer

Demotes the attributes of the list element specified by the index to become main attributes of the feature.

Parameters

Example

If this feature enters this transformer:

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’

and the index is set to 2, then the feature leaving the transformer will have these attributes:

length = 1.1

kind = 'rough'

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'

The index may either be entered as a number, or can be taken from the value of a feature attribute by selecting the attribute name from the pull-down list.

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

Lists

Additional Resources

More information about lists

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