Been watching the discussions regarding GeoPDF and Shapefile maps lately. Figured I'd point out this link which talks about Shapefile maps and where to get (some of) them:
https://wiki.openstreetmap.org/wiki/Shapefiles There are other sources as well, for instance your county GIS office. I personally prefer Shapefile maps for offline use: They are vector maps and therefore load quickly, plus Xastir has support for Shapefiles build in. The downside to Shapefiles: The DBF file can have all kinds of formats and field ordering, so you must create a DBFAWK file (DBFAWK's are specific to Xastir) for each type, which usually means for each source+type of map. Vector data are in the *.SHP files, indexes in the .SHX files. *.DBF files contain the labels which attach to the points/vectors/areas, and are the more variable portion that we have to adapt to. Xastir only needs those three pieces (we don't use *.PRJ or others) plus a DBFAWK file that matches. In the case of the NWS, we must update the DBFAWK's constantly 'cuz they keep changing the DBF files that go along with their maps (U.S. weather alerts). Not sure if that makes everything more confusing or not, but there ya' go. -- Curt, WE7U http://wetnet.net/~we7u http://www.sarguydigital.com _______________________________________________ Xastir mailing list [email protected] http://xastir.org/mailman/listinfo/xastir
