v.in.tiger.scs <contriGRASS Reference Man<contrib> v.in.tiger.scs



NAME
     v.in.tiger.scs - Converts ASCII TIGER data files from the
     U.S. Dept. of Commerce Bureau of the Census.
     (SCS GRASS Vector Program)

SYNOPSIS
     v.in.tiger.scs
     v.in.tiger.scs help
     v.in.tiger.scs [-cv] tig1=name tig2=name out=name
     cfc=name[,name,...]

DESCRIPTION
     This program imports Census line features from TIGER records
     type1 and type2 into GRASS vector format.	Both pre-Census
     and post-Census data formats can be used.	Specific Census
     Feature Class Codes (CFCC) can be extracted completely or in
     various combinations.  These codes are described in the
     TIGER/line Census Files 1990 documemtation available from
     the Bureau of the Census.	An additional feature code
     consisting of the three letters "BOU" may also be specified
     to extract a county boundary.  Condensed Record 1 files may
     be imported with the -c flag.  These files should be
     identified with a trailing "x" character on the filename.

COMMAND LINE OPTIONS
     Flags:

     -c		       Condensed TIGER file.

     -v		       Verbose output.

     Parameters:

     tig1=name	       TIGER file 1.

     tig2=name	       TIGER file 2.

     out=name	       New vector file name.

     cfc=name,name,... Specific Census Feature Class (CFCC)
		       codes.

EXAMPLE
     To extract all Primary (A1) and Secondary (A2) roads from a
     county's TIGER files the following command would be used:

	  v.in.tiger.scs tig1=t12113.1 tig2=t12113.2 out=roads \
	  cfc=A1,A2

     To extract all the Hydrographic features in a county's TIGER
     files with verbose output:




GRASS 5.0beta6	      GRASS Development Team			1






v.in.tiger.scs <contriGRASS Reference Man<contrib> v.in.tiger.scs



	  v.in.tiger.scs -v tig1=t12113.1 tig2=t12113.2 out=hydro
	  \
	  cfc=H

     To extract the county boundary the command would be:

	  v.in.tiger.scs tig1=t12113.1 tig2=t12113.2 out=bou \
	  cfc=BOU

NOTES
     The TIGER files must in sorted order before being used.
     This can be done by using the following command:
	  1
	  2

     For consistency the sorted file should be written as above.
     It should consist of a 't' followed by the State and County
     FIPS code, then a '.' and then a value to identify the
     record number.
     The CFCC code 'BOU' used to extract the County Boundary
     should be used alone as it will result in a polygon AREA
     being created.
     Currently output is in UTM only.

SEE ALSO
     v.import

AUTHOR
     Paul H. Fukuhara, USDA SCS National Cartographic Center


NOTICE
     This program is part of the contrib section of the GRASS
     distribution.  As such, it is externally contributed code
     that has not been examined or tested by the Office of GRASS
     Integration.



















2		      GRASS Development Team	   GRASS 5.0beta6