FME Transformers: 2024.1
FME Transformers: 2024.1
Creator
Creates features using the parameters supplied, and sends them into the workspace for processing.
The Creator's interface allows you to select the desired type of geometry, then enter the coordinates and/or parameters that will create the desired object.
Configuration
Input Ports
This transformer does not have any input ports.
Output Ports
Created
All created features are output through this port.
Parameters
General
Geometry Source |
This parameter specifies how to create the geometry, using the options listed below. Your choice for this parameter determines whether other parameters are enabled or disabled.
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
Geometry Object |
The Geometry Creator dialog is accessed via the ellipses button. In this dialog, a Geometry Type is selected and appropriate tabs are enabled to define the object being created:
3D coordinates may be toggled on to add z coordinates to the parameters.
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
GeoJSON |
Creates a geometry based on the GeoJSON spec. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
Coordinate System |
This parameter allows you to set the coordinate system on the specified feature. Select a coordinate system from the pull-down list, or click the Browse button to select from the Coordinate System Gallery. If you leave this parameter blank, the coordinate system will not be set on the feature(s) created by this transformer. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
Number to Create |
This parameter specifies how many features will be created. When more than one feature is created, the attribute specified by the Creation Instance Attribute parameter will hold each feature's creation number (starting from 0). |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||
Create After Readers |
Create After Readers determines whether the feature is created after all reader features have been processed (Yes), or whether the feature is created immediately before the first reader feature is processed (No). Features cannot be created in the data flow before any reader reads anything, since the data flow is driven by features arriving from the reader. In rare cases, you might want the Creator to specifically operate before other features are processed. |
Output Attribute Name
Creation Instance |
When more than one feature is created (see the Number to Create parameter above), this attribute will hold each feature's creation number (starting from 0). |
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.
How to Set Parameter Values
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.
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.
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
These functions manipulate and format strings. | |
Special Characters |
A set of control characters is available in the Text Editor. |
Math functions are available in both editors. | |
Date/Time Functions | Date and time functions are available in the Text Editor. |
These operators are available in the Arithmetic Editor. | |
These return primarily feature-specific values. | |
FME and workspace-specific parameters may be used. | |
Creating and Modifying User Parameters | Create your own editable parameters. |
Dialog Options - Tables
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:
|
Cut, Copy, and Paste
|
Enabled once you have clicked on a row item. Choices include:
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.
FME Community
The FME Community is the place for demos, how-tos, articles, FAQs, and more. Get answers to your questions, learn from other users, and suggest, vote, and comment on new features.
Search for all results about the Creator on the FME Community.