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OpenStreetMap and geocoding il y a 1 semaine 2 jours #1

  • guidovanharten
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I prefer to use geocodes for my locations.
In the past centuries and years often a place changes to another province or country, or a village is no longer a stand alone village, but part of neighbour city.
How do I become the right geocodes of the locations in my tree, on such a way that OSM can find it on the map?

Best regards,
Guido

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OpenStreetMap and geocoding il y a 1 semaine 2 jours #2

Guido,

As an Admin you would need to go the “control panel”. At the bottom of the page you will see a section titled “Map”.

One of the links will take you to a section called “Geographic Map”

Use the data entry here to create a hierarchy of places. Starting with country. The hierarchy must match each level of your place structure.

For me I have top levels of Norway, Germany, USA. Under each of these I enter the next subdivision, then the cities within that subdivision. Each level has a geocode location for that level.

In many cases people have already created .csv file with this data already. It is stored on the web for you to import into webtrees. Here
Ken

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OpenStreetMap and geocoding il y a 1 semaine 2 jours #3

  • guidovanharten
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Thanks, Ken,

People, born in Zagreb in 1950, is born in Yugoslavia; people born in Zagreb in 2020 is born in Croatia. That's why I prefer to use only geocodes.
It doesn't matter when the person is born. He (or she) is born is Zagreb at 45.8401104,15.8242455,11.

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OpenStreetMap and geocoding il y a 1 semaine 2 jours #4

Hi,

you can add Latitude and Longitude for each location entry (see picture). In "Facts and Events" you can then click on the corresponding maps icons (google, osm, bing).

Maybe GOV would also be interesting for you?
webtrees.net/download/modules

Gov4Webtrees - by ric2016 - 1.7 - website - 2.0 - website - demo

It enhances places with historical and current GOV data, creating a place hierarchy with administrative levels from the date of the respective event.

Dieter
Schmidt ⚭ Schwab (Sudetenland) | Hauer ⚭ Bühler (Bayern / BW) | Маринов ⚭ Шаламанова (BG)
webtrees 1.7.16 & 2.0.0 | PHP 7.3.0 | MySQL 5.6.42 | Apache 2.4.37 | SunOS 5.10
Pièces jointes :

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OpenStreetMap and geocoding il y a 1 semaine 2 jours #5

Gedcom 5.5.1 apparently allows MAP, LONG, and LAT tags linked directly to a place. It appears that in Webtrees you can enter these tags in GEDCOM if you enter Longitude/Latitude with place names in Facts & Events. These coordinates shows up as links (in fact 3 links to - GoogleMaps, Bing Maps and OpenStree Maps) when you view Facts and Events.

However there appears to be no linkage of location data entered in GEDCOM with location data in Places, so you are not able to see place hierarchy or the relationship of a location to multiple individuals if the location data is only in GEDCOM.

I don't know if above is totally accurate since I have only discovered it by playing around. And, I wonder if it makes sense to eventually tie all of this together, e.g. if LAT/LONG is available in the Places Table, pull it automatically into GEDCOM. and vice versa.

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OpenStreetMap and geocoding il y a 1 semaine 2 jours #6

  • fisharebest
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> Gedcom 5.5.1 apparently allows MAP, LONG, and LAT tags linked directly to a place

More specifically, linked to an event.

You can have many events in the same *place*, but with different co-ordinates.

For example, you can be born, married and buried in "Keswick, Cumbria, England", but each event will have different LAT/LONG (the hospital, the church, the cemetery).
Greg Roach - Cette adresse e-mail est protégée contre les robots spammeurs. Vous devez activer le JavaScript pour la visualiser. - fisharebest.webtrees.net

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OpenStreetMap and geocoding il y a 1 semaine 2 jours #7

  • fisharebest
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> e.g. if LAT/LONG is available in the Places Table, pull it automatically into GEDCOM. and vice versa.

The places table contains a single point to represent the entire place. Typically, this will be the town centre or some other landmark.

If we copied it to each event then we would be saying that the individual was born, married, buried, etc. at the town centre.

This is not only wrong, it would prevent you from knowing which events had accurate co-ordinates, and which were just the co-ordinates of the town centre.
Greg Roach - Cette adresse e-mail est protégée contre les robots spammeurs. Vous devez activer le JavaScript pour la visualiser. - fisharebest.webtrees.net

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OpenStreetMap and geocoding il y a 1 semaine 2 jours #8

Makes perfect sense. Thanks.

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OpenStreetMap and geocoding il y a 1 semaine 2 jours #9

Guido,

Their are two different approaches that people take when entering place names. Each has a pro and a con.

1) Enter place names as they happened at the time of the event. Pro... Accurate for historical purposes. Con... Each place name Hierarchy needs to be entered into the geo coding database, more work for places that change hierarchy.

2) Enter place names as they are today, or at a single point in time. Pro... All place names that happened at a single geo coordinate will be mapped when you use that hierarchy, enter the geo coding for that place Name once. Con... Place name history is not maintained in the PLAC GEDCOM tag, can be confusing for historians.

Personally I use #2 because it is easier for people to find a place on a map of today If they want to travel there rather than trying to find a location that was in 2 or 3 different countries or had several names depending on the point in time. My wife has family in what is today Poland but was part of Germany, Prussia and had several different names depending on the time period and religious group. This is much easier for mapping to name them all the same and then write a shared note to explain the history of the place which I attach to the PLAC.NOTE
Ken

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