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- March 22, 1994
- Stephen A. Davis, KG0DW
- Des Moines(Clive), IA
-
- CENTRAL IOWA APRS Maps
-
- IACEN250.map Central-IA Counties(20+) APRS Map
- IAMET250.map Large Scale DM-Metro APRS Map
- IADM250.map Smaller Scale DM-City & Suburbs APRS Map
-
- This is an upgraded/updated revision of the nationally distributed DMIA200.map
- and contains additions, a few corrections, and a other changes as compared to
- older maps. USERS NOTE: This new series of maps REQUIRES vers 3.13 or later
- of APRS to run! [Versions 4.00 to 4.02 were used during construction of the
- current maps.]
-
- The biggest addition in this series is the 20 county map of Central Iowa. It
- contains federal roadways, major waterways, county lines, county seats,
- and a few other major cities. {Note DM and metro area cities are not
- indicated; ran out of map label space!} All important features are labeled,
- with the labels showing up when you zoom down to the 16 mile range. Lots of
- labels make the map crowded, but remember, you can 'Turn OFF' the labels
- by using the Alt-F, then L key combo in APRS. [You can also turn off other
- features such as water or roadways if you want to get them out of the way.]
-
- In order to accommodate a more detailed map of the Metro area, I found it
- necessary to develop two maps: 1) Concentrating on the City of Des Moines
- and it's suburbs inside or near the I-235/I-35/I-80 loop, and 2) Another
- concentrating on the area outside of the interstate loop. The larger area
- metro map kicks in at the 8 mile range, while the smaller denser DM map
- doesn't appear until you zoom into the 4 mile range. Remember that you
- can switch back and forth between the last two maps within or greater than
- the zoom range by using the 'Alt-U' keys. This will be necessary at times
- because when zooming and or using the HOME key, APRS will change maps based
- on some internal calculations, even tho you might not want it to do so.
- Just use the Alt-U to get to the other map. I have also added many labels,
- although I still don't like the way they shift around when zooming. Labels
- for the larger features appear at the higher mileage ranges, while street
- labels won't show up until the map is zoomed to 1 mile for the DM map, or 2
- miles for the larger Metro map. [Some labels for smaller features won't
- appear until the .5 mile range is reached].
-
- TO USE THE NEW MAPS: You must copy the THREE appropriate map lines into the
- MAPLIST.APR file. Be sure to place them below the Iowa County and Boone/Ames
- map lines, with the Metro map above the City map, or they won't work
- properly. I suggest that you also change the range for the Boone/Ames map
- from 38 to 20 to increase the 'loadability' of the DM maps. [If you are
- located in Ames or Boone you may or may not want to do this, although I can't
- find any problems associated with changing the ranges.] For your convenience
- I have included below all of the mapline additions to the MAPLIST file for
- all known Iowa maps. If you received this document and map files on a disk,
- then more than likely the maps for Ames/Boone and the Iowa Counties will be
- included as well. Be sure you copy the maps themselves to the MAPS
- subdirectory of the APRS directory. Also remember to remove or
- * out lines that reference older Metro-DM being superceded by this version
- (such as IADM200.map,IAMET200.map, DMIA100.map or IADMoins.map).
-
- {If you received this file on disk, I also included the latest version of
- APRS, along with a properly constructed MAPLIST.APR file, which can replace
- the .apr file that appears when you unzip the APRS package. Be sure to copy
- the new maps to the MAPS subdirectory after unzipping, or you won't see the
- maps at all!}
-
- The following lines should appear in order in the MAPLIST.APR(MAP) file:
-
- IAcontys.map,42,93.7,135,
- IABoAmes.map,41.9,93.7,20, Combined Boone and Ames maps
- IACEN250.map,41.66,93.37,70, Central Iowa Counties by KG0DW, Vers 2.50
- IAMET250.map,41.61,93.68,10, Metro-DM map by KG0DW, Vers 2.50
- IADM250.map,41.61,93.68,6, DM & Suburbs by KG0DW, Vers 2.50
-
-
- No warranties exist or are implied by the distribution of these files.
- While not copy-writed, these files remain the property of their creators;
- unauthorized commerical use is prohibited.
-
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