Re: GIS and tech writing?

Subject: Re: GIS and tech writing?
From: doc -at- edwordsmith -dot- com
To: techwr-l -at- lists -dot- techwr-l -dot- com
Date: Fri, 23 Nov 2007 13:32:28 -0800

On Fri, 23 Nov 2007 11:06:59 -0500, "Bill Swallow"
<techcommdood -at- gmail -dot- com> wrote:

>> I know that a lot of basic map data is digitized from aerial and
>> satellite photography.
>Well, define "basic map data".

Basic map data, to me, is the coordinate system plus topography,
shorelines, and certain other natural or man-made features. This sort
of map data is widely available and cheap or free, having been
published by government agencies.

Aerial/satellite imaging is a very
>*small* subset of map data.

If all map data were added to the basic map of a city, for example, it
would be "The Black Map", just a big splat of ink. GIS is a way to
have and work with lots of spatial data without having to represent
the part you don't need to see. The free Google Earth viewer is pretty
cool, but not a very good example of the power of GIS.


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Re: GIS and tech writing?: From: doc

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