Reprojects feature coordinates from one coordinate system to another using the Esri reprojection engine.

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Typical Uses

  • Reprojecting features when explicitly using the Esri reprojection engine is desired.

How does it work?

The EsriReprojector receives features and reprojects their coordinates from one coordinate system to another, using Esri coordinate system definitions and the Esri reprojection engine.

It is not necessary to have Esri products installed to use it.

Both a Source and Destination Coordinate System must be specified, and any coordinate system previously set on the input features will be ignored. Coordinate systems may be selected from a list of available choices, or provided in an attribute value or user parameter. Values must be in the form ESRIWKT|<name>|<esriwkt> where <name> is the coordinate system name, and <esriwkt> is the WKT (Well-Known Text) representing the coordinate system.

If the selected pair of coordinate systems has appropriate Geographic Transformations available, they will be provided.

Geographic Transformation

Both predefined and custom geographic transformations are supported.

Predefined Esri coordinate systems and geographic transformations may be found here.

Geographic transformation names are case-sensitive.

Note  Some geographic transformations require transformation grid files that may not be present in ArcGIS or FME by default. If such a transformation is chosen and the grid file is missing, an error will occur. A number of grid files are available in the Reprojection Grid Files download at FME Downloads. Grid files should be placed in the appropriate subfolder in FME\Reproject\EsriPEGridData\.

You can also enter GEOGTRAN Well Known Text that represents a geographic transformation.


Additional parameters are available for raster features, specifying how the reprojected cells are to be interpolated.

This transformer is not affected by raster band and palette selection.

Vertical and Time-Dependent Transformations

Optional parameters for handling time-based (epoch) and vertical transformations are also available.


Usage Notes

  • FME also has a Workspace Parameter, Reprojection Engine, that may be set to either FME (CS-Map) or Esri. Using this transformer will override this parameter setting.
  • When using Epoch, only inter-frame transformations are supported, where input and output features are the same epoch. To transform from one epoch to another, consider using the PROJReprojector.

Working With Coordinate System Transformers

FME inherently supports coordinate system transformations and reprojections.


Input Ports

Output Ports


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.

Dialog Options - Tables

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


Processing Behavior


Feature Holding


Dependencies None
Aliases ESRIReprojector

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