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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Tiger is going to limit you to the US only. Open Street maps will give you a non-us centric format that might give a wider audience. As with all shape files you will have to spend a great deal of time on cartography work to make them look as good as the commercial maps do. Personally I hate doing the cartography work, it’s tedious and to do it right you really have to do some work on the raw tiger files to do things like smooth the lines and removing unwanted data layers. The upside though is that you can store them locally, they are vector based and the file sizes are much smaller compared to tile formats. The big disadvantage to shape file formats is the lack of support for formatting. You have to use data in the tables to thematically format the files for display. While this can and has been done in other programs, it can also be a pain if the file formats change.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>This is why the tile formats from the commercial sources have become so popular. You can take advantage of all the hard work in cartography done by others. With open street maps there should be some sort of application that can do a lot of this cartography work for you. Tiger files have nothing like this that I am aware of.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Thank You,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Brian N2KGC<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> aprssig-bounces@tapr.org [mailto:aprssig-bounces@tapr.org] <b>On Behalf Of </b>Arnie Shore<br><b>Sent:</b> Wednesday, June 08, 2011 6:38 PM<br><b>To:</b> TAPR APRS Mailing List<br><b>Subject:</b> Re: [aprssig] Android HUD Development<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p><p class=MsoNormal style='margin-left:.5in'>Curt, yr comment "... OpenStreetMaps in Shapefile format should work nicely. We use that format in Xastir for offline maps, ..." caught my attention.<br><br>I'm the project ldr on Tickets CAD, and there's interest in our converting to non-Google maps. (The ER folks need local/server storage for the tiles/files, while those turned off by the TOU do not.)<br><br>I'm aware of the TIGER shapefiles; wd that be yr recommended source?<br><br>Thanks for any brain--picking on this.<br><br>AS<o:p></o:p></p></div></body></html>