VRT (OGR Virtual Format) Feature Representation

In addition to the generic FME feature attributes that FME Workbench adds to all features (see About Feature Type Attributes), this format also adds format-specific attributes (Format Attributes).

Geometry

The geometry of OGR VRT features may be identified by the wkb_type attribute. The valid values for this attribute are:

wkb_type Description
wkb_none FME Feature with no geometry
wkb_point 2D Point feature
wkb_point_xyz 2.5D Point feature
wkb_line 2D Linear feature
wkb_line_xyz 2.5D Linear feature
wkb_polygon 2D simple polygon or donut feature
wkb_polygon_xyz 2.5D simple polygon or donut feature
wkb_geometry_collection 2D Feature with multiple geometries
wkb_geometry_collection_xyz 2.5D Feature with multiple heterogeneous geometries
wkb_multi_point 2D Feature with multiple point geometries
wkb_multi_point_xyz 2.5D Feature with multiple point geometries
wkb_multi_line 2D Feature with multiple line geometries
wkb_multi_line_xyz 2.5D Feature with multiple line geometries
wkb_multi_polygon 2D Feature with multiple polygon geometries
wkb_multi_polygon_xyz 2.5D Feature with multiple polygon geometries
wkb_geometry All geometries allowed
wkb_unknown All geometries allowed

VRT Attribute Type Mapping

The VRT attribute type mapping is shown below.

VRT Attribute Type FME Attribute Type
string(width) fme_varchar(width)
string(width) fme_char(width)
binary fme_buffer
string(1) fme_char
real(width, decimal) fme_decimal(width, decimal)
datetime fme_datetime
date fme_date
time fme_time
integer fme_int32
real(10,0) fme_uint32
real(20,0) fme_int64
real(20,0) fme_uint64
integer fme_int16
integer fme_uint16
integer fme_uint8
real(15,7) fme_real32
real(31,15) fme_real64
integer fme_boolean