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| GeoCommunity Mailing List |
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| Subject: | Re: GISList: Project clairification - oops! |
| Date: |
11/22/2002 02:28:09 PM |
| From: |
Glenn Letham (GeoCommunity) |
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Robert... sorry... my choice of words may not have been the best (didn't
mean to imply you were being rude or anything like that!) and my comments
were not directed directly at you or any one individual.
My message was simply a reminder to the list to make a judgement call when
to/not to cc the list that's all...
have a good week-end all
Glenn
Ps: Go Bucs!
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
----- Original Message -----
From: "Robert Heitzman" <rheitzman@hotmail.com>
To: <dposner@flabass.org>: <gislist@geocomm.com>
Sent: Friday, November 22, 2002 11:01 AM
Subject: Re: GISList: Project clairification
> Forgive the incomplete links - use google.com to find the sites...
>
> >#1. I have a background in the web and network
> >technology. The server we will host this on will be a
> >clustered Compaq dl760 with 8 processors and 16 gig of
> >RAM. The data will be housed on a SAN linked to the
> >server on a fiber channel backbone...
> >
> That should do!
>
> >#2. The GIS web interface platform must run on a J2EE
> >engine.
>
> Well, your making it pretty hard on yourself using this environment - good
> job security however. You will pretty much have to build your own solution
> based code source you acquire from somewhere.
>
> >
> >#3. The DB of choice is Pervasive SQL2000...
>
> Ditto
>
> >
> >#4. The OS of choice in our minds is NetWare 6...
>
> Ditto
>
> Now that your job is secure and no one else in the world could work on
your
> system...
>
> There are several source of GIS data that could be incorporated.
>
> NOAA has raster images of many of their charts available. (search for noaa
> chart maker) Unfortunatly they have been bought off and there is a middle
> man that may prevent you from using the public domain data. A good lawyer
> should be able to extract the data from NOAA if you are patient. Less
> useful raster version of charts are available for some areas.
>
> NOAA also has something called the 'coastline extractor'. This will give
you
> lines representing the shoreline that could be useful for a high level GIS
> navigator. The current largest scale readily availabel is 1:70000 but I
> think they may be working on a larger scale set for Florida and a few
other
> locations.
>
> There are also so large scale raster maps around for ports.
>
> Some USGS data (DRGs) may also be useful as well as whatever aerial photos
> DOQQ are availabel for your AOI (area of interest).
>
> A good GIS tool for working with all this data would be Manifold
Enterprise
> Edition ~$375 each with some good volume discounts if you will have a crew
> working on this. Manifold is a full featured GIS and is inexpensive. The
EE
> edition has good data sharing via backed SQL servers. It may work with
your
> flavor of SQL server as it doesn't require esoteric spatial extensions as
> some product do. (The coastline extractor exports in some strange
formats -
> I have a script in the works to import the extracted coastline. If you
need
> it drop by the Manifold-L list on the Directions Magazine site.)
>
> Manifold can import a wide variety of formats (not the propritary version
of
> the NOAA charts but the version your lawyer would pry out of NOAA which
has
> been preverted by the vendor)
>
> The final product can be exported in a format acceptable to whatever map
> server you build.
>
> Manifold has a web server built in but it won't run on your web server -
IIS
> is required. It might be useful for in house use or for some sidebar web
> services if you have a IIS server available.
>
> ><snip>
>
> >
> >So if you folks tell me exactily what we need to do to
> >get this project off the ground we can do it. A lot
> >of your info has already been very helpful. I have
> >two questions about the info:
> >
> >"Is this to be a temporal model -- i.e. will it
> >account for changes in time? Remember, these
> >waterways are dynamic systems. How do you want to
> >account for time in this data model?" This is a
> >Question we thought of but we're not sure of the
> >answer. We would like it to have a temporal
> >component, but we need more information.
>
> Perfect data is great but I doubt you have the resources. The best you can
> do is use what data is available. Most of the data mentioned above is on a
> 2-10 year update cycle.
>
> The NOAA charts are probably the most current. It might be best to figure
> out how to sign up for the data from the vendor that paid off NOAA for the
> sole source license.
>
> >
> >"How much error are you willing to
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