ABZ_OSM's Diary

Recent diary entries

I have the following overpass query

out geom;

which you can also see here and shows any changes I have made in the bbox in the given date range.

I would like to enhance this query by showing every user change, except for changes made by me, in other words a boolean ‘not me’, or ‘not ABZ_OSM’?

I have tried lots of variants of !ABZ_OSM, and I think I have tried all the possibilities, though I may have by chance missed a working option.

Does anyone know how to do !ABZ_OSM (not ABZ_OSM)?

ps I know I can do this with but I think being able to do this with a quick overpass query is easiear.

Any level of automation of over tracing buildings, using AI, would be a game changer for OSM allowing us to populate the map with detail much more rapidly.

Over tracing is normally a laborious task. In my case even using a wacom drawing pad to over trace. If you haven’t got a wacom drawing pad, get one, it makes over drawing much much easiear vs using a mouse.

Here is a 13 minute screen cast of my experience of using “mapwithai-dev” plugin with the latest “josm-latest.jar”.

My intention was to discover if I could over tracing buildings in Aberdeen, Scotland, Europe.

The guidance on how to do this is posted at this page

If anyone can shed any light on how to make this plugin useful, for specific locations, that would be very helpful,

thank you

Location: Kincorth and Leggart, Aberdeen City, Scotland, United Kingdom

SOLVED: How to add images to a diary entry with Kramdown?

Posted by ABZ_OSM on 10 July 2020 in English (English). Last updated on 16 July 2020.

I understand that this text is interpreted and formatted using the Kramdown markup language, and that to insert an image I need only add

”! [my interesting image] (”

So I put my image on my Google drive and shared it publically and it did not display.

What do I have to do to display images, and is there a space I can upload images to which will display them when I link.

I am overtly an OSM advocate. For many reasons. But I’d like to focus on just one reason why I believe Open Street Map (OSM) will surpass GM (Google maps), even though today, GM is in much broader use because of its transport navigation capability.

Below is one area in which OSM is already better, and you can help make it better in many more small (or large) areas.

West Cammachmore, Aberdeenshire, Scotland, is a small village or hamlet, consisting of 50 - 100 or so houses, and you can see all the house names on the OSM map, which are searchable, in the map page search box.

GM does not show this level of detail on its maps, and often does not contain addressing information which is accurate enough, after a search, for routing in the last 300m or so of the radius.

This can lead to problems for delivery drivers, and others, searching for an exact address using GMs.

In towns, or cities, with streets that are numbered sequentially, with odd numbers on the left, and even numbers on the right, this is not a problem. Because a delivery driver can easily locate such a numbered house, but in a hamlet, often, there are only house names, and no sequential numbers to aid locating the exact address.

For small communities knowing the name of each house, when directing this lost traffic, is very handy, and saves return to sender delivery problems.

Once a small community is accurately mapped, the local community will, over time, learn where to go for accurate, detailed, mapping information.

Detailed mapping creates better community connectivity.

That is why I mapped West Cammachmore, even though I don’t live there.

I simply walked round the hamlet and surveyed the house names and asked the few people I know who live locally if they knew the names of houses that were not displayed outside houses.

If you have a clipboard with outline traces of houses on it that you are marking up, then sometimes someone local is going to ask you what you are doing.

I always find walking round a place, to survey it for mapping, interesting. You never know what you will learn, about the locality, the people who live there, the local history, the local builder /developer, the local farmer, etc.

After what usually amounts to a few survey trips, and entering survey results into OSM, I use JOSM for this, it can take a few days for additions to appear on the map. It is always satisfying to see new additions appear on the map.

House names or addresses can be made visible on the OSM map by drawing the trace and tagging with the tags :-

building=house and addr:house name=The Steading (If the house name is “The Steading”) or addr:housenumber=12 (If the house number is 12)

In some cases both tags will be applicable.

Location: Cammachmore, Aberdeenshire, Scotland, AB39 3NJ, United Kingdom

A week past wednesday, or so, I had a look at St Cyrus, Aberdeenshire, Scotland, Europe on OSM and noticed that a map tidy up was needed.

Over the next week or so I did various tidying chores and additions, as time allowed;

  • The village route traces were not very accurate at all, so I improved these first.
  • Then added the information boards and benches along the top of the cliff, as well as the path
  • Added and improved the salmon fishing buildings at the bottom of the cliff along the foreshore
  • Added various buildings and houses in the village, including the convenience store, post office and cafe at the main road end of beach road
  • Added the village notice board and phone box opposite the convenience store
  • Added detail to the historic Ecclesgreig church yard, with the tag historic. The “historic” tag allows us to build up a history layer for tourism which is important. Custom OSM maps can then show tourism spots that are of interest by sector, eg Scotland’s ancient golf courses, Scotland’s ancient churches, etc.

There is no doubt that St Cyrus’ long shallow beach, was, and is easy, to spot from sea, and was an easy landing point for early Christians, Viking’s, and others landing with long boats or other boats with shallow hulls.

The remains of the Old Church within the Old Churchyard, on the foreshore, can no longer be seen. The village church is now on top of the cliff and within the current village.

The main contribution here, I feel, was to tidy the village route traces, making further additions that will complete the village, easiear, for future mappers.

Location: St Cyrus, Aberdeenshire, Scotland, DD10 0BG, United Kingdom

Mapping sensitive sites

Posted by ABZ_OSM on 8 July 2020 in English (English).

I’d be interested in your thoughts on mapping sensitive sites.

What do we do when we visit a location and unbeknown to us, a large site we are welcome at houses within it a large sensitive site that locals don’t want to talk about.

On such an occasion a fairly innocent question is “Hi, what is that right in front of us?”

It turned out to be, as far as I could gather, a chemicals plant, regarded as strategic, in a fairly unstable region.

I’m fairly sure some of my OSM edits, on that occasion, outlining that chemical plant, with polygon sattelite image traces, were deleted, though how locals would connect “Hi, what is that over there” to OSM I do not know. Perhaps I innocently mentioned OSM at the time.

Aberdeen, Scotland : Mapping hidden underground streams

Posted by ABZ_OSM on 8 July 2020 in English (English). Last updated on 9 July 2020.

The Den Burn stream flows, mostly overground, until it reaches Aberdeen’s West End.

It then dissappears underground before rising up again, momentarily, at Aberdeen Grammar School, before dissappearing underground again and finally entering Aberdeen’s upper harbour.

Many missing sections, underground, and through culverts have still to be mapped.

This query shows work that has been done so far, and sections that still have to be completed .. and a much better, cleaner, query, with decent MapCSS

Town planners, local knowledge, man hole covers, local news papers, and listening for flowing water can all be used to trace streams where access is difficult of the stream is hidden underground.

Where the Den Burn flows

Location: Gilcomston, Aberdeen City, Scotland, AB25 1NX, United Kingdom

In a recent phone conversation with a relative who lives in Dundee, Scotland, I discovered Dundee has it’s own zoo, Camperdown Wildlife Centre.

This is contained within Camperdown Country Park.

After the phone call I checked the park and the zoo on OSM and I saw that the park needed much improved tracing, and that the zoo was simply a border outline trace on the map and nothing else.

So I set out to improve this. Firstly I improved the accuracy of the tracing for the country park and added some missing traces. This was a general tidy up and much still needs to be done to improve the mapping for the Country Park. Apparently there are many interesting trees growing in the park that could be individually tagged.

I spent what must have been 5 or 6 hours getting information on the park from the Camperdown Wildlife centre site (zoo) and putting it into the map (OSM).

I doubt I will have time to keep the animal enclosure information up to date as this changes with time.

I’d be interested in any comments about mapping zoo’s and / or parks.

Location: Charleston, Dundee, Dundee City, Scotland, DD2 4NN, United Kingdom

Because of covid and the particular need for parents to be in touch with schools, I’ve joined with Robert Whittaker’s efforts to map school information.

Robert has produced some very good analytics maps, which show the percentage of schools that have a complete mapped data set in each part of Scotland.

This can be used to add information where existing tag sets are lacking, or tag correction is necessary.

Mostly this information can be found on local schools web sites.

A typical school mapping
How to tag contact information

Typically this will look like

  • “contact:website=http://www…..”

  • “contact:phone=+44 ….”

  • “contact:email=abc@xyz…..”

  • .. see the typical mapping link above to get an idea for how tags at other schools might look

Isced levels
  • This page explans isced levels rather well

  • Isced levels sould be mapped “isced:level=1” for a primary school, and “isced:level=3” for a secondary school. Have a look at the isced levels link above to be sure, but this seems it will fit most cases.

Scottish Government Seed codes
Location: Portlethen, Aberdeenshire, Scotland, AB12 4PT, United Kingdom