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Re: [aprsisce] Digest Number 1147

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  • James Ewen
    ... You are correct in that the hypsographic information used by the CycleMaps aren t exactly high resolution data. The USGS data would be higher accuracy. The
    Message 1 of 2 , Apr 23, 2012
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      On Mon, Apr 23, 2012 at 2:48 PM, Mykle Raymond <n7jzt@...> wrote:

      > The Cycle Maps look very interesting as I have not seen them before.
      > They will work fine for 24Hop coverage, but the USGS Topo maps (choose
      > from a variety of providers, including the originals) are more
      > representative, especially in areas of steep slopes.  These contours
      > look like they were generated from the USGS elevation data grid (DEM).
      > I have used this data for shading, but not for contours unless I didn't
      > have good alternatives.

      You are correct in that the hypsographic information used by the
      CycleMaps aren't exactly high resolution data. The USGS data would be
      higher accuracy. The CycleMap data gives to a better idea of the
      terrain than the standard Mapnik map though.

      --
      James
      VE6SRV
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