Licensing options for this format begin with FME Desktop Professional Edition.
The Secure eXchange Format reader allows FME to read spatial data from SXF files.
This module can only process a single file at a time.
Overview
FME provides read access to Secure eXchange Format files. These files consist of SXF object data that may be contained multiple layers. FME treats layers as feature types, objects as features, and object semantics as attributes.
SXF features can represent geometries consisting of points, lines, polygons, and multiples thereof. Smooth geometry features such as ellipses or arcs are not supported. SXF geometries are also coordinate-system-aware. The coordinate system of the feature types defines how to interpret the coordinates of all features under the feature type.
SXF files are often associated with an .RSC file, which defines naming and formatting information for layers, object classes, and semantic classes. An associated .RSC file should have the same name as the .SXF file, and should be in the same folder.
Reader Overview
A reader dataset is the SXF file name. If an .RSC file with the same name is present in the same folder, it will be used to determine feature type names, the sxf_object_class_name format attribute, and attribute names.
Note: The SXF reader supports reading layers from the same file. Because of this, reading multiple files is not supported, so you will need to create a separate reader for each Secure eXchange Format file.
Usage Notes
The SXF reader will read layer and attribute names from an .RSC file that can be specified when the reader is created.
Graphic formatting from an .RSC file (font, background colors, etc.) will not be preserved.
Terminology in this Chapter
- A feature type is the FME representation of an SXF layer.
- A feature is the FME representation of an SXF object.
- An attribute is the FME representation of an SXF semantic.