Re: [Talk-GB] How to map houses

[Paul Berry]

Hi Bart,

Glad it's of use but I can't take the credit. I learnt of this tool via JonS
 (not sure if he is on here) who,
from what I can see, has pretty much addressed all the housing in Wakefield
with it!

Regards,
*Paul*

On Tue, 27 Nov 2018 at 19:37, BD  wrote:

> Paul,
> The Terracer plugin is absolutely great. Reason for me to pose question on
> how to best map houses was solely because I drew some outlines and couldn't
> find a good way to split the objects.
>
> JOSM and terracer are doing the job much easier (see the village I'm
> trying to map: https://www.openstreetmap.org/#map=18/52.60681/-0.43854 )
> 
>
> Many thanks
> Bart
>
> --
> It would be useful if there was a means of splitting buildings in the
>
> editor(s).
>
> I believe the Terracer plugin for JOSM could be your friend and guide here:
> https://wiki.openstreetmap.org/wiki/JOSM/Plugins/Terracer
>
> I've not used it myself however.
>
> Regards,
> *Paul*
>
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Re: [Talk-GB] How to map houses

[BD]

Paul,  The Terracer plugin is absolutely great. Reason for me to pose question 
on how to best map houses was solely because I drew some outlines and 
couldnt find a good way to split the objects.JOSM and terracer are 
doing the job much easier (see the village Im trying to map:  
www.openstreetmap.org www.openstreetmap.org )   Many thanks  Bart   --  It 
would be useful if there was a means of splitting buildings in the   editor(s). 
  I believe the Terracer plugin for JOSM could be your friend and guide here:  
wiki.openstreetmap.org wiki.openstreetmap.org   Ive not used it myself 
however.   Regards,  *Paul*
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Re: [Talk-GB] How to map houses

[John Aldridge]

On 27-Nov-18 11:50, Lester Caine wrote:

On 27/11/2018 11:40, John Aldridge wrote:
It would be useful if there was a means of splitting buildings in the 
editor(s).


I'm probably in a minority here, but since the mapper usually can't 
tell how the building is divided internally, it's more honest to leave 
the building undivided and put the housenumber etc. tags on nodes on 
the building boundary which represent the front doors.


I also think this is more useful to someone using the map, as it shows 
where to find the doorbell!


My source material has all the house divisions and we could even include 
the internal floorplans...


Perfect! Though doing that job properly would sometimes involve 3D 
mapping - there's one smallish building around here with four front 
doors which I suspect is split into two upstairs and two downstairs flats.


But that's very much the exception, I suggest. Mostly people seem to 
have arbitrarily divided a semi or terrace so as to give separate 
polygons to tag. Better all round to just tag front door nodes under 
those circumstances, I suggest. And where a single exterior door is 
shared between several dwellings (e.g. in a block of flats) something like


addr:housenumber=8-24
addr:interpolation=even

on the node deals neatly with the case.

--
Cheers,
John

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Re: [Talk-GB] How to map houses

[Lester Caine]

On 27/11/2018 11:40, John Aldridge wrote:
It would be useful if there was a means of splitting buildings in the 
editor(s).


I'm probably in a minority here, but since the mapper usually can't tell 
how the building is divided internally, it's more honest to leave the 
building undivided and put the housenumber etc. tags on nodes on the 
building boundary which represent the front doors.


I also think this is more useful to someone using the map, as it shows 
where to find the doorbell!


My source material has all the house divisions and we could even include 
the internal floorplans, but where we have a block of houses being able 
to quickly draw an outline and then create several objects with the same 
set of tags is easier than trying to manually create each linked element 
of the building.


--
Lester Caine - G8HFL
-
Contact - https://lsces.co.uk/wiki/?page=contact
L.S.Caine Electronic Services - https://lsces.co.uk
EnquirySolve - https://enquirysolve.com/
Model Engineers Digital Workshop - https://medw.co.uk
Rainbow Digital Media - https://rainbowdigitalmedia.co.uk

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Re: [Talk-GB] How to map houses

[John Aldridge]

It would be useful if there was a means of splitting buildings in the 
editor(s).


I'm probably in a minority here, but since the mapper usually can't tell 
how the building is divided internally, it's more honest to leave the 
building undivided and put the housenumber etc. tags on nodes on the 
building boundary which represent the front doors.


I also think this is more useful to someone using the map, as it shows 
where to find the doorbell!


--
Cheers,
John

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Re: [Talk-GB] How to map houses

[Paul Berry]

>  It would be useful if there was a means of splitting buildings in the
editor(s).

I believe the Terracer plugin for JOSM could be your friend and guide here:
https://wiki.openstreetmap.org/wiki/JOSM/Plugins/Terracer

I've not used it myself however.

Regards,
*Paul*

On Tue, 27 Nov 2018 at 09:06, Lester Caine  wrote:

> On 27/11/2018 08:47, Ed Loach wrote:
> > 'We expect this "interpolation way" to be a temporary construct. In the
> > long run, OSM will have every single house mapped as a building outline,
> > and every single house will be tagged with its house number, so that
> > interpolation ways will gradually vanish. However they are good to make
> > a quick start with house numbers, and reportedly there's existing data
> > waiting to be imported that will also require interpolation.'
>
> It would be useful if there was a means of splitting buildings in the
> editor(s). Even for semi-detached houses, being able to create two
> objects from the one original outline would be helpful. A terrace of
> houses just needs to identify how many new objects to create. Where I
> have been adding buildings this has been the irritation. Mirror would
> also be useful although architects seem to like making changes between
> the two halves of a semi these days. But draw one half with all it's
> tags then mirror to create the other half, and just edit the house number.
>
> --
> Lester Caine - G8HFL
> -
> Contact - https://lsces.co.uk/wiki/?page=contact
> L.S.Caine Electronic Services - https://lsces.co.uk
> EnquirySolve - https://enquirysolve.com/
> Model Engineers Digital Workshop - https://medw.co.uk
> Rainbow Digital Media - https://rainbowdigitalmedia.co.uk
>
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Re: [Talk-GB] How to map houses

[Lester Caine]

On 27/11/2018 08:47, Ed Loach wrote:
'We expect this "interpolation way" to be a temporary construct. In the 
long run, OSM will have every single house mapped as a building outline, 
and every single house will be tagged with its house number, so that 
interpolation ways will gradually vanish. However they are good to make 
a quick start with house numbers, and reportedly there's existing data 
waiting to be imported that will also require interpolation.'


It would be useful if there was a means of splitting buildings in the 
editor(s). Even for semi-detached houses, being able to create two 
objects from the one original outline would be helpful. A terrace of 
houses just needs to identify how many new objects to create. Where I 
have been adding buildings this has been the irritation. Mirror would 
also be useful although architects seem to like making changes between 
the two halves of a semi these days. But draw one half with all it's 
tags then mirror to create the other half, and just edit the house number.


--
Lester Caine - G8HFL
-
Contact - https://lsces.co.uk/wiki/?page=contact
L.S.Caine Electronic Services - https://lsces.co.uk
EnquirySolve - https://enquirysolve.com/
Model Engineers Digital Workshop - https://medw.co.uk
Rainbow Digital Media - https://rainbowdigitalmedia.co.uk

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Re: [Talk-GB] How to map houses

[Ed Loach]

Dan wrote:

 

> The more orthodox use is described here:

https://wiki.openstreetmap.org/wiki/Addresses#Using_interpolation

 

Interesting. I'm clearly behind with wiki reading. My views on 
addr:interpolation are still based on 

https://wiki.openstreetmap.org/wiki/Proposed_features/House_numbers/Karlsruhe_Schema#Using_interpolation_to_mark_many_houses_along_a_way

 

'We expect this "interpolation way" to be a temporary construct. In the long 
run, OSM will have every single house mapped as a building outline, and every 
single house will be tagged with its house number, so that interpolation ways 
will gradually vanish. However they are good to make a quick start with house 
numbers, and reportedly there's existing data waiting to be imported that will 
also require interpolation.'

 

In fact I've gone as far as removing some interpolation ways where the 
individual addresses can now be worked out from aerial imagery (usually these 
are ways added pre-Bing).

 

Ed

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Re: [Talk-GB] How to map houses

[Dan S]

Hi BD,

Ed's right that opinions will vary and there's often not one perfect
answer. Allow me to propose a modification of Martin's suggestion, for
the case where you have one single outline for a whole terrace and no
knowledge of exactly which housenumber sits where:

building=terrace
addr:housenumer=5-17
addr:interpolation=2
addr:street=Westbury Avenue

Using address interpolation on an outline is not that common, I admit,
but it does at least mean the data is there in machine-readable
format, i.e. it's relatively straightforward to write an automatic
query to know where to send someone if they're looking for 7 Westbury
Avenue.

The more orthodox use is described here:
https://wiki.openstreetmap.org/wiki/Addresses#Using_interpolation
where, assuming you know which end of the row is number 5 and which is
number 17, you'd use building=terrace and then create a separate way
(typically not even connected to the building outline) that holds the
addresses and interpolation as shown in the little diagram you see on
that wiki page.

Best
Dan

Op ma 26 nov. 2018 om 19:22 schreef Martin Wynne :
>
> Hi BD,
>
> Try:
>
> building=terrace
>
> name=5-17 Westbury Avenue
>
> see: https://wiki.openstreetmap.org/wiki/Tag:building%3Dterrace
>
> cheers,
>
> Martin.
>
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Re: [Talk-GB] How to map houses

[Ed Loach]

BD asked:

> can some one tell me, what is the best way to map houses in residential area. 
> 
> Which one should we consider the most appropriate way to map longer building 
> comprised of few properties?

I'm not sure either of your two examples are the best way, and I suspect the 
answer is likely to be "opinions vary".

Your example of individual houses would, in my opinion, be the better of the 
two if it had house numbers. The long buildings with nodes to mark house 
numbers are better than nothing. Buildings with no other information than just 
an outline are nothing but visual clutter which makes it harder to see where 
still needs address surveying without zooming in close (I'm sure my opinion 
will upset a lot of people who spend ages sitting there tracing them, but when 
I've come to add house numbers in the past it is often easier to delete the 
building outlines and start again).

Here are some other examples you might like to look at.

Maldon, Essex
https://osm.org/go/0EFrpAyFq?m=
Being picky, I think the individual property boundaries are perhaps a bit over 
the top, but if they are going to be added then there probably needs to be 
access to the house from the street rather than a solid barrier.

Sutton Coldfield, Birmingham
https://osm.org/go/euzN_rS4l--?m=

Nottingham
https://osm.org/go/eu8bMaoJB--

East Dulwich
https://osm.org/go/euuuXeO_c--

Clacton-on-Sea
https://osm.org/go/0EHmQd7ib

Apart from the last I just picked places at random and zoomed in. The level of 
detail varies, but what seems to be common is the individual outlines with an 
address on each.

I hope this helps,

Ed



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[Talk-GB] How to map houses

[BD]

Hi,   can some one tell me, what is the best way to map houses in residential 
area. I was thinking of this on a much smaller scale (four or five terraced 
homes) but here is a good example of even longer properties.   
www.openstreetmap.org www.openstreetmap.org  West of the Westbury Ave., each 
house is a separate object; east from there someone mapped the long buildings 
as single long rectangles and only added points for house numbers.   Which one 
should we consider the most appropriate way to map longer building comprised of 
few properties?
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