Geographic Data Files (GDF) Quick Facts

About Quick Facts Tables

Format Type Identifier

GDF

Reader/Writer

Both

Licensing Level

Professional and above

Dependencies

None

Dataset Type

File

Feature Type

Level and geometry-based name

Typical File Extensions

.gdf

Automated Translation Support

Yes

User-Defined Attributes

No

Coordinate System Support

No

Generic Color Support

No

Spatial Index

Never

Schema Required

Yes

Transaction Support

No

Geometry Type

gdf_type

Encoding Support Yes (UTF-8)

Geographic Data Files (GDF) Geometry Support

Geometry

Supported?

aggregate

no

circles

no

circular arc

no

donut polygon

yes

elliptical arc

no

ellipses

no

line

yes

none

yes

point

yes

polygon

yes

raster

no

solid

no

surface

no

text

no

z values

no