I personally use these programs and bought his book. It is very educational and the programs are nice. One of the neat features is the ability to extract only the poly data you want from the Tiger files and then merge them in to a larger file such as a state. With this method you could easily extract say only the railroad polygon layer county by county and then merge that in to one shapefile for the whole state. You could also do this for interstates and major roads, this creates a much more efficient file that the complete set of tiger information. I will also mention that these are windows programs with a GUI, those of us who don't program or like command line stuff can easily build good map files using this program. If you really want to learn about all the free US based public mapping data and how to work with it get his book. It has great explanations of the ortho imagery process as well as digital terrain data. It might be more than some want for APRS but it could help in the quest to generate quality maps for Xastir that rival the visual quality of the commercial mapping applications.
Thank You, Brian N2KGC www.wirelessmapping.com <http://www.wirelessmapping.com> -----Original Message----- From: Jason Winningham [mailto:[EMAIL PROTECTED] Sent: Wednesday, December 13, 2006 7:08 AM To: Curt Mills Cc: xastir@xastir.org Subject: Re: [Xastir] [aprssig] TGR2SHP TIGER/Line translator is now Freeware(fwd) Is this different than the python scripts, whose output we've been using for a few years now? -Jason kg4wsv _______________________________________________ Xastir mailing list Xastir@xastir.org http://lists.xastir.org/cgi-bin/mailman/listinfo/xastir _______________________________________________ Xastir mailing list Xastir@xastir.org http://lists.xastir.org/cgi-bin/mailman/listinfo/xastir
