GeoRSSFeatureComposer

Categories

Format Specific

Web

Constructs GeoRSS documents from the input features and stores them in the specified attribute for the features that are output by the GeoRSS port. The constructed GeoRSS document will be created according to the specified Geometry Format and Output Format, in the character set specified by the Output Character Set parameter.

Configuration

Input Ports

For any given GeoRSS document, the metadata for the feed.

The entry features from the input GeoRSS document/feed.

Output Ports

The features containing the GeoRSS document in the attribute specified by the GeoRSS Attribute parameter.

Parameters

Flush Attribute

The GeoRSS document that is being constructed accumulates features until the value specified for the feature Flush Attribute. When this occurs, the newly received input feature is not part of the flushed document, but rather is part of the next document to be constructed.

Output Format

Choose the format of the XML feed that the GeoRSS writer will produce:  

  • Atom: the writer will produce an Atom 1.0 feed.
  • RSS: the writer will produce an RSS 2.0 feed.

Geometry Format

Choose the format of the output feed’s geometry extensions: GML, W3C, or Simple.

Escape HTML Content

This parameter determines how the writer handles HTML content. Select Yes to ensure that the writer will escape HTML content before outputting it. Select No to ensure that the writer will output the content unchanged.

Output Character Set

The character set encoding in which the output XML feed should be written.  If no character set is specified, the feed will be written in the UTF-8 character set. If an invalid character set is specified, the translation will fail.
Composed GeoRSS Name the attribute to contain the GeoRSS document.

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.

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. There are a number of tools and shortcuts that can assist in constructing values, generally available from the drop-down context menu adjacent to the value field.

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.

Dialog Options - Tables

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.

FME Community

See the FME Community for additional information about GeoRSS and FME.

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 samples and information about this transformer on the FME Community.