FME Transformers: 2024.2

Categories
Geometries

Geometries

Categories
Geometries

Geometries

Orientor

Adjusts the orientation of a polygonal feature, a surface, or the direction of a linear feature.

Example

Configuration

Input Ports

When the Orientation Type is Reverse, then points, lines, areas, surfaces, and solids are accepted.

When the Orientation Type is Right hand rule or Left hand rule, only areas are accepted.

Output Ports

Features with orientation as specified by Orientation Type.

When the Orientation Type is Reverse, features that are not points, lines, areas, surfaces or solids will be rejected.

When the Orientation Type is Right hand rule or Left hand rule, features that are not areas will be rejected.

Parameters

Orientation Type

When Reverse is specified, the feature's coordinates are flipped so that the first coordinate becomes the last one, and vice-versa. This option is intended for use with features that are not polygonal. Only the Reverse option is available for surface geometries.

If the feature is an area, a Right hand rule orientation causes the outer boundary to have its vertices arranged in a clockwise direction, and the holes to have their vertices in a counterclockwise direction.

The opposite is true when Left hand rule is specified. When the Left hand rule is specified, the feature's outer boundary vertices are in a counterclockwise order and the holes have a clockwise ordering.

Flip Appearances

If Flip Appearances is set to Yes, the appearances of each face of a solid input feature will change sides.

Editing Transformer Parameters

Transformer parameters can be set by directly entering values, using expressions, or referencing other elements in the workspace such as attribute values or user parameters. Various editors and context menus are available to assist. To see what is available, click beside the applicable parameter.

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.

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.

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.

Table Tools

Transformers with table-style parameters have additional tools for populating and manipulating values.

Row Reordering

Enabled once you have clicked on a row item. Choices include:

  • Add a row
  • Remove a row
  • Move current row up one
  • Move current row down one
  • Move current row to top
  • Move current row to bottom

Cut, Copy, and Paste

Enabled once you have clicked on a row item. Choices include:

  • Cut a row - delete and copy to clipboard
  • Copy a row to the clipboard
  • Paste a row from the clipboard

Cut, copy, and paste may be used within a transformer, or between transformers.

Filter

Start typing a string, and the matrix will only display rows matching those characters. Searches all columns. This only affects the display of attributes within the transformer - it does not alter which attributes are output.

Import

Import populates the table with a set of new attributes read from a dataset. Specific application varies between transformers.

Reset/Refresh

Generally resets the table to its initial state, and may provide additional options to remove invalid entries. Behavior varies between transformers.

Note: Not all tools are available in all transformers.

For more information, see Transformer Parameter Menu Options.

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