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Subject:  Re: National Geographic TOPO Software |
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Author: kursch |
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Date Posted: 11:01:41 02/11/04 Wed In reply to: Pathfinder 's message, "Re: National Geographic TOPO Software" on 21:22:31 02/10/04 Tue I guess it is off to galyans... But it is so hard to get out of there in under 2 hours and without spending a fortune on really cool stuff. ak >>When using a GPS, how accurate are the fixes based on >>real world location? > >As long as you use the same map datum for the GPS and >Map, they are pretty accurate. We have actually used >them to map an expedition on the White Pine Trail, and >publish maps of the trail. They were right on target. > If you use different datums, then you could be up to >200 meters off. > >>Do the maps show any compression smudging from when >>the images were scanned like some web based products? > >Not bad. Much better than Topozone. They have great >resolution, and the maps sometimes are a few meters >off. This is only because some of the USGS Topos are >in WGS84 and some are in NAD27, (again the Datum/Conic >Projection things. > >>How well do the edges line up from multiple sheets? > >Not completely "seamless" but hardly noticable. > >I use it a lot. All the team's maps are made with >this program, and it does a great job. > >The adventure paper works great. I demonstrated it at >our land navigation class, by putting the map under a >faucet for about 5 seconds, no smudging, no damage, >etc. I have seem "adventure paper" maps in Nalgene >bottles for up to 6 months and they held up pretty >well. The only problem is the adventure paper >averages about $1 per sheet, (pretty expensive!). You >can definitely use the maps in a rain storm or on a >wet kayaking trip without any problem. > >For $99 you get a lot of bang for your buck. Just >make back up discs. After 3 years, mine is starting >to degrade from scratches,etc. > >It beats topos usa hands down, because of all the >features on the maps, etc. It also beats web based >stuff like topozone, because it is much more powerful >and has the GPS features. > >Our White Pine trail maps are done with a GPS and the >Nat Geo Topo program. > >Hope that helps. > >Pathfinder > > >>Anyone have any experience with this software. It >>boats "seamless" USGS 7.5' coverage of the entire >>state from scanned topo quads. It also says it can do >>uploads and downlaods from GPS units. You can also get >>special "adventure paper" which is plasic map paper >>for inkjet printers so yo can print your own custom >>topos. >> >>Does anyone have this software and how does it work. >> >>When using a GPS, how accurate are the fixes based on >>real world location? >> >>Do the maps show any compression smudging from when >>the images were scanned like some web based products? >>How well do the edges line up from multiple sheets? >> >>All in all, how useful is it. It seems like a good >>idea, but then agin so was the car/boat/airplane you >>could keep in your garage and drive to work... >> >>ak [ Next Thread | Previous Thread | Next Message | Previous Message ] |
| Subject | Author | Date |
| Re: National Geographic TOPO Software | Pathfinder | 13:45:34 02/11/04 Wed |
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