Tiler

Splits input features into a series of tiles by specifying either tile size (in ground units) or total number of tiles.

Typical Uses

Tiling data for storage or processing efficiency
Tiling data to match the extents of other datasets to enable group processing

How does it work?

The Tiler accepts features with most types of geometry, including vector, raster, and point cloud. 2D and 3D features are supported. The input features are divided into a series of rectangular tiles, according to parameter selections.

The extent of each tile may be described by:

Dimensions in Ground Units - where the height and width of the tiles are specified explicitly in the ground units of the features’ coordinate system, or
Number of Tiles - where the bounding box encompassing all features is divided by the specified number of columns and rows.

Features receive Column and Row number attributes identifying the tile they fall within. Columns and rows are numbered from zero (0) and the numbering may start in any corner.

Features are split where they cross tile boundaries. Elements that fall on tile borders may be duplicated in each tile.

Seed coordinates can be used to control tile position when Define Tiles By is Dimensions in Ground Units.

3D features are tiled as they overlay the 2D tiles. Where they are split, z values may be interpolated in a variety of ways. Measures may also be interpolated where required.

RasterTiler or Tiler?

The RasterTiler also tiles rasters, and may be appropriate if you wish to tile based on number of cells (pixels) per tile. This table compares the two:

	Tiler	RasterTiler
Tiling extents	Cumulative over all features	Single feature
Type of data accepted	All types except surfaces and solids	Raster only
Tile size units	Ground coordinates	Pixel coordinates
Tile row numbering (0, 1,...)	Selectable	Top to bottom
Supports forcing equal-size tiles	No	Yes
Supports raster index attribute	No	Yes
Supports number of horizontal/vertical tiles attribute	No	Yes

Examples

Example: Using tile size and seed coordinates to control tile position

Usage Notes

Features in a latitude/longitude coordinate system may need to be reprojected prior to tiling. Consider using the Reprojector or other reprojection transformers. For temporary reprojection for defined tile size, the CommonLocalReprojector may be useful.
The Tiler does not create grid. For grid, see the 2DGridAccumulator or 2DGridCreator.

Creating and Modifying Boxes and Rectangles

Creating rectangular geometry is a common task. These transformers do so in a variety of ways.

Rectangle Transformers Comparison

Transformer	Use this to...	Transformer Description
Creator	Create one or more new features with box geometry of a specific size and position (when Geometry Object is Box).	Creates features using the parameters supplied, and sends them into the workspace for processing.
2DBoxReplacer	Replace an existing feature’s geometry with a box of a specific size and position.	Replaces feature geometry with a 2D box defined by specified minimum and maximum x and y values.
BoundingBoxAccumulator	Create one rectangle that encompasses all features received.	Creates a rectangular polygon that spans the extents of all input features.
BoundingBoxReplacer	Individually replace the geometry of each feature with a rectangle that covers its extents.	Replaces feature geometry with a box or cube that spans the extents of the feature.
RasterExtentsCoercer	Individually replace the geometry of each raster feature with a rectangle.	Replaces the geometry of input raster features with a polygon covering either the extents of a raster or the extent of data within a raster.
BoundsExtractor	Extract the coordinate values that describe an individual feature’s bounding box (or cube) and store them as attributes.	Extracts a feature’s minimum and maximum coordinate values into attributes.
2DGridAccumulator	Create a series of regularly-spaced rectangles that span the extent of all features (when Type of Grid to Create is Polygons).	Creates a regular grid of points or rectangular polygons that span the extents of all input features.
2DGridCreator	Create a series of regularly-spaced rectangles of a specific size and position (when Type of Grid to Create is Polygons).	Creates a regular grid of points or rectangular polygons of a specified size, position, and coordinate system.
Tiler and RasterTiler	Chop features into a series of rectangular tiles, specified in a similar fashion to the 2DGridAccumulator.	Splits input features into a series of tiles by specifying either tile size (in ground units) or total number of tiles. Splits each input raster into a series of tiles by specifying either a tile size in cells/pixels or the number of tiles.

Configuration

Input Ports

Output Ports

Parameters

Group Processing

General

Advanced

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

Dialog Options - Tables

For more information, see Transformer Parameter Menu Options.

Reference

Processing Behavior	Group-Based
Feature Holding	Yes
Dependencies	None
Aliases
History

FME Community

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Examples may contain information licensed under the Open Government Licence – Vancouver, Open Government Licence - British Columbia, and/or Open Government Licence – Canada.

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.

Column	Name the attribute to contain column numbers, relative to the Starting Corner. Numbering starts with 0.
Row	Name the attribute to contain row numbers, relative to the Starting Corner. Numbering starts with 0.