Re: [Paddlewise] Scanning charts [+ more map web sites]

On Thu, May 14, 1998 at 11:53:54PM -0400, Wynne Eden wrote:
> Compressed Tiffs give the highest final resolution and are lots smaller.
> They may get the best ratio..any real graphics nerds out there?

Yes, here.  (Raises hand)  Actually, JPG will do much better than tiff
*unless* you use a tiff format that excludes a lot of the overhead (such
as multiple-resolution views of the same image).  But by the time you've
done that...you might as well have used JPG, which (a) is supported
by many browsers (b) is under active development by a standards group
and (c) is computationally less intensive to deal with than tiff.

BTW, there are some other map sites there that y'all might want to visit;
here are the URLs:

<li> <a href="http://www.mapquest.com/"> Welcome To MapQuest!</a>
<li> <a href="http://www.city.net/maps/"> Excite Maps: Browse All Maps</a>
<li> <a href="http://www.infospace.com/"> The Ultimate Directory - InfoSpace</a>
<li> <a href="http://www.pathfinder.com/travel/maps/"> Pathfinder Maps</a>
<li> <a href="http://www.mapmania.com/"> Online Mapping - Chicago Map Corp</a>
<li> <a href="http://www.mapsonus.com/"> Maps On Us: A Map, Route and Yellow Pages Service</a>
<li> <a href="http://tiger.census.gov/cgi-bin/mapsurfer"> Tiger Map Server Browser</a>
<li> <a href="http://route30.delorme.com/"> DeLorme: CyberRouter</a>
<li> <a href="http://maps.yahoo.com/yahoo/"> Yahoo! Maps</a>
<li> <a href="http://www.theodora.com/maps/abc_world_maps.html"> Quick Maps of the World - Flags, Maps, Economy, Geography, Climate, Natural Resources, Current Issues, International Agreements, Population, Social Statistics, Political System</a>
<li> <a href="http://www.geo.ed.ac.uk/home/ded.html"> Bruce Gittings' Digital Elevation Data Catalogue </a>
<li> <a href="http://edcwww.cr.usgs.gov/glis/hyper/guide/1_dgr_dem"> 1-Degree USGS Digital Elevation Models</a>
<li> <a href="http://www.zilker.net/~hal/apl-us//"> JHU/APL Digital Relief Map of the US (Composites Browser)</a>
<a href="http://pubweb.parc.xerox.com/map/db=usa"> Xerox PARC Map Viewer, USA database</a>
<a href="http://pubweb.parc.xerox.com/map/"> Xerox PARC Map Viewer, World database</a>


The Tiger map browser is a fun one to interact with; it lets you turn various
features off and on and redraws the map accordingly.

---Rsk
Rich Kulawiec
rsk_at_gsp.org
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