[Openstreetmap-dev] Node / line segment database statistics separation

[SteveC]

Is this a gopod time to mention that the stats include deleted nodes and
segments, not just the currently live ones? The logic being that any
dead ones can be brought back. I can change this.

I've added tickets for checking loopback segments and doing a nod degree
graph.

* @ 15/11/05 12:46:15 PM tom at tom-carden.co.uk wrote:
> Andy Robinson wrote:
> >Nice screen shot!
> >  
> 
> Hope to make this easier soon (might add a ticket on trac for "save this 
> map" links from view-map), but if you want specific areas you can 
> quickly hack around with the URL of the image in view-map so long as you 
> get the proportion of width and height right.  1280x914 seems a nice 
> compromise.
> 
> Here's London...
> http://tile.openstreetmap.org/cgi-bin/steve/mapserv?map=/usr/lib/cgi-bin/steve/wms.map&service=WMS&WMTVER=1.0.0&REQUEST=map&STYLES=&TRANSPARENT=TRUE&LAYERS=landsat,streets&width=1280&height=914&bbox=-0.546135581013279,51.3492791203629,0.251208161013279,51.7036148796371
> 
> North/south divide?  Not much!
> 
> >It may not be as one sided as you think though, although I admit the
> >grid-iron does figure more strongly in the older town centres. Look at all
> >those little cul-de-sacs in the newer residential areas. They are
> >effectively linear rather than grid and because of all the modern curved
> >roads there are loads of nodes. From all the cycling I have done up and 
> >down
> >this area I can say that there have been a lot more cul-de-sacs than 
> >grids. 
> >  
> 
> You're right about the character of most streets, and of course the more 
> detail you add then the less the number of nodes and lines will 
> diverge.  That's why we're accounting for a 2% divergence rather than 
> the pure-grid divergence which would tend to 100%...
> 
> >These little quiet cul-de-sacs should also carry an OSM warning about
> >getting funny looks when slowly riding a bike down the middle of the road 
> >in
> >a florescent cycling jacket. "You can't get out of here mate/love/dear"
> >seems to be the general response :)
> >
> >  
> 
> This is just asking for a video to be made... Day in the life of a 
> mapping activist :)
> 
> Tom.
> 
> 
> 
> 
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have fun,

SteveC steve at asklater.com http://www.asklater.com/steve/