Deaggregator

All deaggregated features, as well as features that could not be deaggregated, will be output via this port.

Flatten One Level: this option will break an aggregate feature into child parts one level deep then output each child part as a feature. That is, nested geometries will be deaggregated at the top level.

Flatten All Levels: this option will break a nested aggregate into child parts at all levels then output each leaf (a part that has no children) as a feature. That is, nested geometries will be deaggregated recursively and only leaf nodes are output.

Preserve Hierarchy: this option will break a nested aggregate into child parts at all levels then output each part as a feature. That is, nested geometries will be deaggregated recursively and all child parts are output. ID information is added to each output feature to preserve the input hierarchy information.

If set to No, Composite Surfaces and Composite Solids will be treated as singleton geometries and will be output unchanged.

If set to Yes, the individual surfaces from a Composite Surface will be output, and the individual solids from a Composite Solid will be output.

If set to No, Geometry Instances will be treated as singleton geometries and will be output unchanged.

If set to Yes, Geometry Instances will be exploded, or instantiated in place.

To explode geometry instances recursively, set Mode to Flatten All Levels or Preserve Hierarchy.

If Part Number Attribute is specified, then each deaggregated output feature is given an attribute containing the part's index within the original aggregate geometry.

The specified list attribute is exploded to transfer attributes to each part of the aggregate.

When a list is exploded, it is automatically removed. To preserve an exploded list, consider cloning the list using the ListCopier.

Merge List Attributes: The feature retains all of its own un-conflicted attributes, and additionally acquires any un-conflicted attributes generated by the transformer. This mode handles conflicted attributes according to the Conflict Resolution parameter.

Prefix List Attributes: The feature retains all of its own attributes. In addition, the feature acquires attributes generated by the transformer, with the name prefixed with the Prefix parameter.

Only Use List Attributes: All of the feature's attributes are removed, except geometry attributes that start with fme_. Then, the feature acquires all of the attributes and associated values that are generated from the exploded list attribute.

Use Original Attribute Values: If a conflict occurs, maintain the values of the original, non-list attribute.

Use List Attribute Values: If a conflict occurs, transfer the values of the generated attributes onto the original, non-list attributes.

If the Accumulation Mode parameter is set to Prefix List Attributes, this value prefixes attributes that are added to the feature.

For geometries that have names, supplying the Geometry Name Attribute will set the attribute to the name of the deaggregated geometry part.

In Preserve Hierarchy mode, the user may decompose hierarchical geometries and attach either ID and Parent ID, ID and Child ID, or all three sets of ID information. If a hierarchical geometry were to be represented as a tree, then each tree node would have a unique ID. Each node would refer to its parent by Parent ID and its children by child IDs.

The attribute that uniquely identifies each output node feature.

The attribute that identifies a node feature’s parent node.

The list attribute that identifies all child nodes of a node.

Every Node: input attributes are copied onto every output node feature.

Root Node Only: input attributes are copied only onto root nodes.

Using the Text Editor

The Text Editor provides a convenient way to construct text strings (including regular expressions) from various data sources, such as attributes, parameters, and constants, where the result is used directly inside a parameter.

Text Editor

Using the Arithmetic Editor

The Arithmetic Editor provides a convenient way to construct math expressions from various data sources, such as attributes, parameters, and feature functions, where the result is used directly inside a parameter.

Arithmetic Editor

Conditional Values

Set values depending on one or more test conditions that either pass or fail.

Parameter Condition Definition Dialog

Content

Expressions and strings can include a number of functions, characters, parameters, and more.

When setting values - whether entered directly in a parameter or constructed using one of the editors - strings and expressions containing String, Math, Date/Time or FME Feature Functions will have those functions evaluated. Therefore, the names of these functions (in the form @<function_name>) should not be used as literal string values.

Content Types

String Functions	These functions manipulate and format strings.
Special Characters	A set of control characters is available in the Text Editor.
Math Functions	Math functions are available in both editors.
Date/Time Functions	Date and time functions are available in the Text Editor.
Math Operators	These operators are available in the Arithmetic Editor.
FME Feature Functions	These return primarily feature-specific values.
FME Parameters	FME and workspace-specific parameters may be used.
Creating and Modifying User Parameters	Create your own editable parameters.

Note: Not all tools are available in all transformers.