[Talk-gb-midanglia] [Spam] Re: High volume changes round Cambridge
Peter Miller
peter.miller at itoworld.com
Tue Dec 23 14:54:07 GMT 2008
It would be really good to be able to easily do a visual 'diff' to see
what has changed over a period of time. I have certainly not checked
his work and I have only spotted errors when I have bumped into them.
We need to allow people to finesse the data, but also need to be able
to assess how good the updates are and reverse them if they are poor.
This is probably going to be a growing issue as people want to
contribute in areas where a lot of work has already been done.
For this guy I think the best idea will be to 'go west'! If he wants
to edit remotely using aerial photography then head for the USA and
get stuck into tiger cleanup. That will keep anyone busy for some time
(I can vouch for that as I work my way round the Florida and gulf of
Mexico coastline!)
Regards,
Peter
On 23 Dec 2008, at 14:37, David Earl wrote:
> On 23/12/2008 14:23, Rowland Shaw wrote:
>> I tend to agree with Philip
>>
>> Looking at the histories around Histon most of the ways have an extra
>> node or two -- comparing the osmarender and mapnik layers shows the
>> addition of landuse areas following the road boundaries -- with this
>> in mind how many of the disputed changes have moved nodes?
>
> Vast numbers. Look at this:
>
> http://www.openstreetmap.org/?lat=52.18117&lon=0.21488&zoom=17&layers=B000FTT
>
>
> This is my own village. There are cross roads that aren't straight any
> more, roads that are bent, roads that don't curve true to life any
> more
> - take sharp bends where there was a smooth curve.
>
> This (inevitably) was one of the first bits I surveyed and there may
> well be errors in what I did, but I do recognise several absurdities
> in
> what's been changed. And that's just in a small area.
>
> David
>
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