2DGridCreator

Creates a grid of two-dimensional point or polygon features, at the origin and using the offsets specified. Each created feature will have a row and column attribute that indicates its position in the grid.

Input Ports

This transformer does not accept any input.

Output Ports

Parameters

General

Starting Corner	The starting corner of the grid. The possible values are: Lower Left Upper Left Lower Right Upper Right
Starting X Coordinate	The Starting X Coordinate and Starting Y Coordinate parameters specify the origin for the starting corner of the grid as a whole.
Starting Y Coordinate	The Starting X Coordinate and Starting Y Coordinate parameters specify the origin for the starting corner of the grid as a whole.
Number of Columns	The Number of Columns parameter specifies the number of features (points or polygons) each row of the grid will have. This must be at least one.
Number of Rows	The Number of Rows parameter specifies the number of features (points or polygons) each column of the grid will have. This must be at least one.
Column Width	The Column Width and Row Height parameters specify in ground units the distance between output points in the grid or the width and height of the output polygons.
Row Height	The Column Width and Row Height parameters specify in ground units the distance between output points in the grid or the width and height of the output polygons.
Type of Grid to Create	Choose point or polygon features. Polygon features will be rectangular boxes with the specified column width and row height. Choosing Points (Corners) will output a point for each of the corners of the cells in the grid. Points (Centers) will give a point for the middle of each cell. Note that there will be an additional row and column output for Points (Corners) over the number that either Polygons or Points (Centers) will generate.
Coordinate System	This parameter allows you to set the coordinate system on the created features. 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, no coordinate system will be set on the features created by this transformer.

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

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 2DGridCreator on the FME Community.

Column Attribute	If Column Attribute is specified, an attribute will be added to each output tile that identifies the horizontal position of that tile in the input raster. This index is zero-based, beginning at the specified Starting Corner.
Row Attribute	If Row Attribute is specified, an attribute will be added to each output tile that identifies the vertical position of that tile in the input raster. This index is zero-based, beginning at the specified Starting Corner.