Coordinate System Information

Esri Product Coordinate System Information

To specify the FME coordinate system, the reader can recognize a coordinate system associated with AutoCAD data by Esri products.

The reader will first look for the following files in the source folder:

  • <filename>.prj
  • esri_cad.prj

If neither of these files is present, the reader will try to find an ESRI_PRJ entry embedded in the drawing file.

AutoCAD Coordinate System Information

To specify the FME coordinate system, the reader can recognize a coordinate system associated with AutoCAD drawing files that have been created with AutoCAD applications of version 2013 or newer.

The reader will give precedence to an Esri product coordinate system, as an override of any native AutoCAD coordinate system in a drawing file.

The writer will set the coordinate system of the associated AutoCAD drawing files if the Coordinate System Storage parameter is set to Internal Native:

Note  When the AutoCAD drawing file contains a custom coordinate system, FME will be able to read it once two steps have been completed:

1.

Ensure the file has been registered as a custom coordinate system in either Map3D or Civil3D.

To do this, either:

  • Define the file within Map3D or Civil3D.

or

  • Open a file with the custom coordinate system set on it in either Map3D or Civil3D, and select Yes when you are prompted to save the coordinate system.

2.

Define the environment variable.

Define the environment variable MENTOR_USER_DICTIONARY_PATH and set it to the path to where these coordinate systems are registered. This appears to be C:\Users\<username>\AppData\Local\Autodesk\User Geospatial Coordinate Systems by default.