NMEA GPS User Attributes

Fixed Schema

The user attributes for this format come from the schema; they are visible in the Feature Type > User Attributes tab, but you cannot modify them.

Feature Type Names

track_points

Geometry type: fme_point

Feature Attribute Description

course

Course of travel, in degrees. Exposed for reading only.

ele

Elevation in meters.

fix

Type of GPS fix. Valid values are

none

2d

3d

dgps

pps

hdop

Horizontal dilution of precision.

pdop

Position dilution of precision.

sat

Number of satellites.

speed

Speed of travel, in knots. Exposed for reading only.

time

Creation date and time.

Note that while the NMEA 0183 format supports milliseconds, the NMEA Reader currently does not have support for reading milliseconds. Milliseconds are rounded to the nearest second.

Format:

YYYYMMDDHHMMSS

track_fid

ID of the track feature to which the point belongs.

track_seg_id

ID of the track segment to which the point belongs.

track_seg_point_id

ID of the point.

vdop

Vertical dilution of precision.

tracks

Geometry type: fme_aggregate of lines

There are no attributes specific to tracks. The reader exposes tracks as a convenience only.

waypoints

Geometry type: fme_point

Feature Attribute Description

cmt

Comment for the waypoint.

desc

Description of the waypoint.

ele

Elevation, in meters.

name

Name of the point waypoint (6 characters maximum). If the name is too long, GPSBabel attempts to reduce the length to 6 characters first by removing vowels and spaces, and then by truncating the name.

If not provided, the name is WPTXXX, where XXX is an auto-incrementing counter.

If names are not unique, duplicate names will be created by replacing the last two characters with x, where x is an auto-incrementing counter.

sym

Name of the symbol for the point. If not provided, the default is “Waypoint”. The name must be a recognized Garmin icon name. “Bell” is used for unrecognized symbol names.

For a list of valid symbol names, refer to garmin_tables.c in the GPSBabel source code. The source for GPSBabel is available at http://www.gpsbabel.org.

time

Creation date/time, in UTC