GRASS and Binary Tiger data

GRASS GRASS user
1

Hi all,

I think I've almost recovered from my fit of newbie questions earlier
today... I've figured out how to create maps from some of the Tiger data
(the ASCII format). However, this question might still fall into the
newbie category:

Can GRASS make use of the binary Tiger data? I've found the areas I
need, but instead of the files being named TGR48085.F51 and such, they're
named majroads.lyr, majroads.nnx, majroads.obj, etc.

Is there a way to use this data (i.e. convert one of the files to a
vector map)?

Does anyone know of a source for the TGR48085.F5? series and the
TGR48113.F5? series (in ASCII format)? Is this what's on the CD ROM the
Census Dept sells or do the CDs have the binary format, too?

Thanks in advance,

Bret

______________________________________________________________________________
Bret A. Schuhmacher Email: bas@wn.com
Technical Director, WebNet Technologies WWW: http://www.wn.com
Voice/Fax: (214) 821-0848 Pager: (214) 816-0283

      I've done so much with so little for so long, I can do practically
      anything with nothing forever!
______________________________________________________________________________

2

"Bret" == Bret A Schuhmacher <bas@webnet.wn.com> writes:

    Bret> Hi all,

    Bret> I think I've almost recovered from my fit of newbie
    Bret> questions earlier today... I've figured out how to create
    Bret> maps from some of the Tiger data (the ASCII format).
    Bret> However, this question might still fall into the newbie
    Bret> category:

    Bret> Can GRASS make use of the binary Tiger data? I've found the
    Bret> areas I need, but instead of the files being named
    Bret> TGR48085.F51 and such, they're named majroads.lyr,
    Bret> majroads.nnx, majroads.obj, etc.

    Bret> Is there a way to use this data (i.e. convert one of the
    Bret> files to a vector map)?

    Bret> Does anyone know of a source for the TGR48085.F5? series and
    Bret> the TGR48113.F5? series (in ASCII format)? Is this what's
    Bret> on the CD ROM the Census Dept sells or do the CDs have the
    Bret> binary format, too?

    Bret> Thanks in advance,

    Bret> Bret

    Bret> _____________________________________________________________________
_________
    Bret> Bret A. Schuhmacher Email: bas@wn.com
    Bret> Technical Director, WebNet Technologies WWW: http://www.wn
.com
    Bret> Voice/Fax: (214) 821-0848 Pager: (214) 816-028
3

    Bret> I've done so much with so little for so long, I can do practica
lly
    Bret> anything with nothing forever!
    Bret> _____________________________________________________________________
_________

    Bret>

Bret,

Yes, you can bring Tiger data into GRASS. Get
<ftp://moon.cecer.army.mil/pub/grass/incoming/tigerscripts.tar.Z&gt; for
some scripts (which avoid RIM). As to the source of the data, you
could always buy the CD's from the Census Bureau. However, they're
sort of expensive (IMHO), so if you're cheap like me, check out
<http://cedr.lbl.gov/cdrom/doc/contents.html&gt; where lots of the Census
CD's are online.

Hope this helps.

Bill.

--
Bill Perkins
Battelle Pacific Northwest Laboratories
Environmental Technologies Division, Subsurface Flow and Transport
P.O. Box 999 MSIN K9-36
Richland, Washington, USA 99352
voice: (509) 372-6131 fax: (509) 372-6328 email: wa_perkins@pnl.gov