FLORIDA GEOGRAPHIC DATA LIBRARY DOCUMENTATION
VERSION 3.0, RELEASED JULY, 2000.

DRG24K CENTER POINTS

Geodataset Name:      DRG24K_CENTERPOINTS
Geodataset Type:      Shape
Geodataset Feature:   Point

GENERAL DESCRIPTION
This dataset contains the center points for the 1:24000 DRG images.

DATA SOURCE(S):                     UNIVERSITY OF FLORIDA GEOPLAN CENTER

SCALE OF ORIGINAL SOURCE MAPS:      Not applicable

DATE OF AUTOMATION OR SOURCE:       June 1999

GEODATASET EXTENT:            State of Florida.

FEATURE ATTRIBUTE TABLES
Datafile Name: DRG24K_CENTERPOINTS.DBF

ITEM NAME    WIDTH      TYPE        N.DEC
 IMAGE        75       CHARACTER      - 
 XCENTER      15       DECIMAL        4
 YCENTER      15       DECIMAL        4
 PIXEL_SIZE    2       CHARACTER      0
 QUAD_NUM      5       CHARACTER      0
 QUAD_NAME    75       CHARACTER      -
 QUADRANT      2       CHARACTER      -
 QQ_NAME      75       CHARACTER      -
 ACQ_DATE     10       CHARACTER      -
 STATE         8       CHARACTER      -

FEATURE ATTRIBUTE TABLES CODES AND VALUES

Item         Item description

IMAGE        Each point in this shapefile represents 
             the center of an image.  This field holds the 
             name for the image associated with the 
             point.

XCENTER      The X coordinate for the image's center.

YCENTER      The Y coordinate for the image's center.

PIXEL_SIZE   The image's pixel size.

QUAD_NUM     Each image is one-fourth of a USGS quadrangle.  
             This is the number of the quadrangle.
             
QUAD_NAME    The name of the USGS quadrangle.

QUADRANT    

QQ_NAME      

ACQ_DATE     

STATE        State where the image is located.  Can be 
             multiple counties.

FGDL QUALITY ASSURANCE STATUS:

REFERENCES:

DATA LINEAGE SUMMARY:
Extracted center point based on Minimum-Maximum extents of the DRG.

MAP PROJECTION PARAMETERS

Projection                         ALBERS
Units                              METERS
Datum                              HPGN
Spheroid                           GRS1980
1st standard parallel              24    0  0.000
2nd standard parallel              31   30  0.000
central meridian                  -84    0  0.000
latitude of projection's origin    24    0  0.000
false easting (meters)             400000.00000
false northing (meters)            0.00000

DATA SOURCE CONTACT(S):

Name:                   FLORIDA GEOGRAPHIC DATA LIBRARY
Abbr. Name:             FGDL
Address:                Florida Geographic Data Library
                        431 Architecture Building
                        PO Box 115706
                        Gainesville, FL  32611-5706
Web site:               http://www.fgdl.org

FGDL CONTACT:

Name:                   FLORIDA GEOGRAPHIC DATA LIBRARY
Abbr. Name:             FGDL
Address:                Florida Geographic Data Library
                        431 Architecture Building
                        PO Box 115706
                        Gainesville, FL  32611-5706
Web site:               http://www.fgdl.org

Contact FGDL:

      Technical Support:	        http://www.fgdl.org/fgdlfeed.html
      FGDL Frequently Asked Questions:  http://www.fgdl.org/fgdlfaq.html
      FGDL Mailing Lists:		http://www.fgdl.org/fgdl-l.html
      For FGDL Software:                http://www.fgdl.org/software.html