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- Path: sparky!uunet!crdgw1!rdsunx.crd.ge.com!galen!leue
- From: leue@crd.ge.com (Bill Leue)
- Newsgroups: comp.sys.mac.misc
- Subject: Map Formats?
- Message-ID: <1992Aug14.140555.26049@crd.ge.com>
- Date: 14 Aug 92 14:05:55 GMT
- Sender: usenet@crd.ge.com (Required for NNTP)
- Reply-To: leue@crd.ge.com
- Organization: General Electric Research & Development
- Lines: 43
- Nntp-Posting-Host: galen.crd.ge.com
-
- Does anyone out there know about formats for geographical maps? I'm trying
- to learn something about the various formats used for archiving mapping
- information.
-
- Of particular interest to me are answers to:
-
- 1) Are there any standards, either de facto or formal, for binary or
- ASCII formats for geographic mapping info? If so, does anyone
- have a reference?
-
- 2) Are there any sources from which one can buy map data at REASONABLE prices?
- For instance, is there a government source? I seem to recall that some
- NASA satellite info (thematic mapper?) data can be had cheaply or perhaps
- just for the downloading costs, but I can't remember the details. My
- preference is for vector-oriented data rather than raster images.
-
- 3) What kinds of formats do the existing Mac applications read? Is there
- any common format that can be read by similar apps on Macs, PC's and Unix
- systems? For instance, I'm looking at an ad for 'ArcView', a mapping application
- for Sun Unix systems. It claims that 'ARC/INFO' format is used for "many"
- geographic information databases.
-
- In addition to these specific questions, I have a general question.
- It calls for a bit of editorializing as an intro, so bear with me. I've always
- been fascinated by maps of all kinds, both for their practical uses for
- activities such as wilderness hiking and city navigation, and for purely
- aesthetic reasons. Looking over the apps available on the Mac, I'm struck
- by the unrelenting emphasis on commercial applications, particularly
- marketing. Of course, this is no surprise, but it's still kind of a drag to
- see so much (crass, IMHO) stress being placed on a mapping application's ability
- to help someone 'target' (don't you just hate that metaphor?!) a particular
- market segment.
-
- The question, then -- of the existing apps, which might be better at non-marketing
- kinds of uses; say preparing an orienteering map from a USGS topo database,
- or generating detailed street maps to help you navigate in a strange city,
- or just to explore that city from your desktop? And are the available
- databases to expensive that it puts this kind of personal use completely out of
- the picture? Can one buy a CD ROM for say, a hundred dollars, that would
- give you city maps for several U.S. cities?
-
- -Bill Leue
- leue@crd.ge.com
-