On Tue, 29 Aug 2006, Christopher Schmidt wrote:

On Tue, Aug 29, 2006 at 01:55:53PM -0400, Derrick J Brashear wrote:
On Tue, 29 Aug 2006, Steve Morris wrote:


Here's an interesting approach to making
public-domain-but-available-for-fee data widely available for free (in
this case US-wide DRGs):

http://ransom.redjar.org/

He ignores that some states (e.g. PA) have unmodified and complete USGS
data online already. Convenience is good but why buy data which is already
available?

How many hours would it take to find which states publish the data, and
which states don't?

A lot. Ask me how I know :)

How much time would it take to download the data, ensure that it is the
correct data, ensure that it is complete data, and ensure that it
matches the standards of all the data provided for ransom?

A lot. Ask me how I know :)

How much money would actually be saved off the price of $1600 by
performing the tasks above?

Unclear.

I would guess that once you start breaking it down, you find that to buy
each state is more than 1/50th of the price. If it's 25% more to buy
each state individually than to buy the whole set as one, Then in order
to break even, *assuming your time is free*, you have to find 10 states
with the same quality of data that was bought.

1. There probably aren't 10 states which make publicly available the
  DRGs.

Yup. Most of the other 40 do.

2. If there are, those 10 states may not provide georeferenced versions
  of the images.

Oh, those 10 don't have any at all.

3. If they do, they may not be named in the same way as all the other
  drgs.

They're georeferenced. You can script the renames. Again, ask me how I know... You then only need to handle weird cases (like, along coasts where they have abnormally sized maps) by hand.



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