Google and Mapquest get their basemaps, if memory serves, from Navtech.
No one seriously uses Tiger anymore for "real" applications. After
USGS migrated to SDTS format Tiger was the only decent alternative, for
some low value of decent. It was based on the original USGS maps,
regardless of what Census told you. However, Census munges them for
their purposes (census work, interestingly enough) and effectively
renders them less than adequate for "real" mapping.
In other words, "These maps should come with a consumer product safety
warning."
gerry
Lee Bengston wrote:
On 10/5/07, Jason Winningham <[EMAIL PROTECTED]> wrote:
On Oct 5, 2007, at 8:48 AM, I wrote:
http://roadnav.sourceforge.net/
Ah, this is more like it. At a glance: maps - so what? looks a lot
like xastir (maybe they do a bit better job rendering labels).
Keep looking: vector maps, rendered by the app, included routing,
vector maps based on TIGER data.
Looks good, but I couldn't get enough data downloaded/converted to
try anything interested - got tired of it continuously bombing on the
mac. Oh well, another one bites the dust.
I wasn't able to get the roadnav deb package to install in andLinux, but I
was able to compile it from source after installing wxwidgets from the
ubuntu respository. Not a bad program - with the Tiger maps, they are
labeling the highways better, and I like they way they display the minor
streets at high zoom levels.
However, it's the same old TigerMap problem at intermediate zoom levels -
either no street labels at all or labels in a very tiny hard to read font
depending on the exact zoom. The same view in Google, Mapquest, etc. shows
the street names clearly. I don't care about looking really slick like
Google does, but street labels that I can read are important.
But the above is in the context of XASTIR and seeing APRS stations in
certain views. Using Roadnav on a trip should be fine - can zoom in or out
as needed - only need to track one vehicle. Overall I would say it's a
pretty nice package.
Lee-K5DAT
Murphy, TX
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Gerry Creager -- [EMAIL PROTECTED]
Texas Mesonet -- AATLT, Texas A&M University
Cell: 979.229.5301 Office: 979.458.4020 FAX: 979.862.3983
Office: 1700 Research Parkway Ste 160, TAMU, College Station, TX 77843
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