MapboxStyler

Creates a common style for a group of features destined for the GeoJSON writer.

The example below shows a polygon styled by MapboxStyler.

For more information regarding GeoJSON Mapbox styling:

See the FME GeoJSON Writer chapter in the FME Readers and Writers manual (in FME Workbench, select Help > FME Readers and Writers Reference)
See the SimpleStyle documentation: https://github.com/mapbox/simplestyle-spec

Configuration

Parameters

Marker Size	This parameter specifies the size of the selected marker symbol. If “small” is selected, a 12x12 pixel marker is displayed. “Medium” represents 18x18 pixels, and “large” represents 24x24 pixel markers.
Marker Symbol	Marker symbol specifies the name of an icon selected from the icon picker, or a valid icon name from the mapbox-maki icon collection found here. The marker symbol is overlaid inside the marker.
Marker Color	This parameter specifies the color of the marker displayed.

Stroke Style (for area boundaries and line geometries)

Stroke Color	This parameter specifies the pen color of the feature used to render the feature in the set color. The pen color determines the color of lines, and area boundaries. To edit this parameter, click the browse button to the right of the text field.
Stroke Opacity	Stroke opacity specifies the opacity of the pen color of the feature. A value of 1.0 is fully opaque, and 0.0 is completely transparent.
Stroke Width	Line Width specifies the width of line geometries and boundaries of area geometries.

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.

How to Set Parameter Values

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.

Dialog Options - Tables

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

Table Tools

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

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Search for all results about the MapboxStyler on the FME Community.

Title	This parameter specifies the title to be displayed when the output feature is clicked or hovered over.
Description	This parameter specifies the description to be displayed when the output feature is clicked or hovered over.

Polygon Fill Color	This parameter specifies the fill color for an area geometry on a feature used to render the interior feature in the set color. To edit this parameter, click the browse button to the right of the text field.
Fill Opacity	Fill Opacity specifies the opacity of the fill color for an area geometry on a feature. A value of 1.0 is fully opaque, and 0.0 is completely transparent.