From: "Robert Scott"
> That's great! I can stop reading about Harris operators. I totally agree
> about orthogonal snapping.
Orthogonal snapping would be useful more generally - do any of the editors
have this feature for manually drawn buildings etc.?
--
Steve
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On Sat, Apr 10, 2010 at 9:23 AM, Steve Doerr
wrote:
> Orthogonal snapping would be useful more generally - do any of the editors
> have this feature for manually drawn buildings etc.?
JOSM has an "Orthogonalise shape" option which is very useful for buildings.
Glenn.
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On Fri, Apr 9, 2010 at 7:00 PM, Kevin Peat wrote:
>
> On 9 April 2010 18:40, Robert Scott wrote:
>
>>
>> Hasn't one of OSM's (many) mantras been "doesn't matter if it's
>> approximate: someone can always improve it later" or "rough is better than
>> nothing"? Sure, some of the OS data is rough, b
Simon Ward writes:
>Having looked at some of the StreetView data aroud my area, it is not
>very accurate at all (probably out of date).
>
>This isn’t something we can just blindly import, trace, or otherwise use
>and assume it’s of better quality.
In areas where we already have some mapping cove
Kevin Peat writes:
>Maybe some people will be put off if the empty areas are filled in with OS data
>so they don't have a blank canvas but I bet there are just as many people out
>here not knowing where to start who would add street names and POIs and
>clean-up
>any OS errors.
I think the histo
Simon Ward writes:
>I’d just like to see something where ground surveyed data is the
>ultimate, and it’s not clear to me that it is the ultimate now.
I've done a fair bit of ground surveying, but all of it has been from the
starting point of an existing map - usually one traced from the aerial i
> It's worth noting that the Yahoo aerial photography is also out of date; in
> some
> cases [1] people have traced streets from the photo which bear no relation to
> what's on the ground. Yet nobody suggests we should stop tracing from it.
Yes they do.
http://lists.openstreetmap.org/pipermail/t
Glenn wrote:
> JOSM has an "Orthogonalise shape" option which is very useful
> for buildings.
And a terracer plugin which I find useful for converting traced
buildings to semi-detached* (or however many) properties.
Ed
* Slight issue when the width of the two semi-detached houses
together is le
Hi again, thanks for the comments.
> How well would this scale up to the whole country? (!! Not automatically
> importing the results of course !!) I'm thinking about tile/batch sizes, tile
> boundary issues,
I was thinking about using a sliding window approach, by loading in an
extra margin fr
On Saturday 10 April 2010, TimSC wrote:
> Converting edge fragments to polygons is the slow step at the moment -
> about 15 minutes a tile. I am using the approach describe in the link
> below. Fortunately, I know a bit of Boost.Python and C++ if we need the
> speed. I suspect a better algorithm
Well spotted ddixon, some of those edits seem like clear "he he, you can
change wikipedia to say what you like" edits. There have just been some
accidental deletes in Canada and it seems like the way to deal with them is
manually.
> To undelete a way, press u, wait 5–10 seconds for the deleted way
Tim François wrote:
> I think OS *is* more accurate on the whole,
I think you're probably correct, but the problem arises when we *assume*
that it's more accurate in areas where we're not knowledgeable of
what's on the ground.
That's not to say we shouldn't map, but I think we should, as we've
Mike Harris wrote:
> The lack of public right of way information is disappointing - but it
> is within OSM's capabilities to walk and map it. However, the lack of
> field boundary information is a serious deficiency as these are
> invaluable in practice to walkers attempting to plan, navigate,
Dave F. wrote:
> Mike Harris wrote:
>> The lack of public right of way information is disappointing - but it
>> is within OSM's capabilities to walk and map it. However, the lack of
>> field boundary information is a serious deficiency as these are
>> invaluable in practice to walkers attempting
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