An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
)or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Unless STOREBounds or WRITEBounds is specified,
embedded coordinates are written to the main coordinate set, and the
following symbols are defined:
$EMBEDDED
is a symbol of type string
that indicates whether the preceding embedding was successful
(string “TRUE")
or unsuccessful (string “FALSE").
$DGSCALE
is a symbol of type real
that holds the distance geometry scaling factor calculated
from the preceding embedding.
$METGAP
is a symbol of type
real that holds the average
difference between lower and upper bounds that
are involved in the metrization stage.
$NONMETGAP
is a symbol of type
real that holds the average
difference between lower and upper bounds after smoothing for
distances that are not involved in the metrization stage.