[Openstreetmap] Re: Openstreetmap Digest, Vol 6, Issue 1: Satellite imagery

wabanstar waban_star at yahoo.com
Thu Feb 3 16:59:06 GMT 2005


Satellite imagery has less horizontal accuracy than
digital ortho rectified quadrangles, and is more
expensive. Are you using geo info systems such as ARC
for the open street map project? Just didn't want to
assume you were. As far as Tiger in the US, it doesn't
have great horizontal accuracy either but is a unified
integrated GIS dataset. It is frequently wrong and out
of date and doesn't do intersections, oneways, etc,
very well. Good for naming in general as it is
standalone. TerraServer can be combined with Tiger for
a good result. probably good enough for most open
source needs, the man hours is the problem. New Tiger
data will be points accurate most likely as points
will be taken in Census 2010. Will your end result
look something like MapQuest, Blast, etc?
Waban star    
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> Today's Topics:
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>    1. Re: [geo-coord] buying satellite data (SteveC)
>    2. Re: [geo-coord] geo meetings 1: okf forum on
> geo	data in
>       april (SteveC)
> 
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----------------------------------------------------------------------
> 
> Message: 1
> Date: Wed, 2 Feb 2005 19:31:04 +0000
> From: SteveC <steve at fractalus.com>
> Subject: [Openstreetmap] Re: [geo-coord] buying
> satellite data
> To: Rufus Pollock <rufus.pollock at okfn.org>
> Cc: geo-coord at lists.okfn.org,
> openstreetmap at vr.ucl.ac.uk
> Message-ID: <20050202193104.GG25257 at fractalus.com>
> Content-Type: text/plain; charset=us-ascii
> 
> * Rufus Pollock (rufus.pollock at okfn.org) wrote:
> > >now i'm back in london, i'm keen to plug on with
> our London Free Map
> > >project - fundraising a little to buy
> high-resolution satellite data
> > >from Ikonos, which we can use to make derivative
> street-level maps,
> > 
> > OKF might be able to assist with this .... What
> are you going to buy for 
> > how much and what will it allow you to buy? I
> assume you will be sharing 
> > whatever data you get with everyone who wants it?
> 
> Sounds fun!
> 
> have fun,
> 
> SteveC steve at fractalus.com
> http://www.fractalus.com/steve/
> 
> 
> 
> ------------------------------
> 
> Message: 2
> Date: Wed, 2 Feb 2005 19:36:00 +0000
> From: SteveC <steve at fractalus.com>
> Subject: [Openstreetmap] Re: [geo-coord] geo
> meetings 1: okf forum on
> 	geo	data in april
> To: Rufus Pollock <rufus.pollock at okfn.org>
> Cc: geo-coord at lists.okfn.org,
> openstreetmap at vr.ucl.ac.uk
> Message-ID: <20050202193600.GH25257 at fractalus.com>
> Content-Type: text/plain; charset=us-ascii
> 
> * Rufus Pollock (rufus.pollock at okfn.org) wrote:
> > As I have said before I would like to do the next
> OKF Forum on geo data 
> > (the current one is 17th Feb at Stanhope centre on
> civic info see 
> > http://www.okfn.org/wiki/OpenKnowledgeForums). So
> let's focus on this. If 
> > we can organize another bigger (say 1 day) event
> all the better. As such 
> > the rough format for the forum is:
> > 
> > Location: London (somewhere relatively central)
> > Time: An evening during the week (though can be
> weekend), say 1900 - 2100
> 
> Was ian able to find somewhere at UCL?
> 
> > Structure: Few short talks (10-15 mins) at start
> from interesting people 
> > (activists, coders, orgs ...) followed by
> discussion
> 
> I'd like to talk if poss, am sure other people on
> openstreetmap will be
> interested.
> 
> > Aim: To bring together different interest groups
> such as policy/think tank 
> > types, coders and activists.
> > 
> > I am now away in mid-march in the states so I
> suggest early to mid April 
> > for this. I think this will work fine we just go
> ahead and DO it. The first 
> > step is to fix a window or even a date and then
> get 3-4 speakers confirmed. 
> > Then we find venue, finalize date etc.
> 
> all sounds good. I hope the ICA thing was good if
> anyone went, one of
> the reasons I havn't got much done / wasnt there is
> that im in the
> states...
> 
> have fun,
> 
> SteveC steve at fractalus.com
> http://www.fractalus.com/steve/
> 
> 
> 
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> End of Openstreetmap Digest, Vol 6, Issue 1
> *******************************************
> 



		
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