Changes between Version 66 and Version 67 of Help/Concepts/Object


Ignore:
Timestamp:
2016-05-07T04:33:17+02:00 (9 years ago)
Author:
openstreetmap.org-user-d1g
Comment:

Technical properties, mention than history is imperfect

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  • Help/Concepts/Object

    v66 v67  
    9797In the [[Image(source:trunk/images/dialogs/propertiesdialog.svg,18,middle)]] [Dialog/TagsMembership Tags/Membership Dialog] you can assign tags to an object, remove tags from an object, or edit assigned tags.
    9898
    99 == Object ids ==
     99== Technical properties ==
     100
     101They were introduced to simplify wiki-style editing. Unfortunately, to track changes to ways/relations you need to use more complex tools than simple comparison by version number.
     102
     103* Contents of the relation can change without change in id of the relation.
     104* Contents of the way can change without change in id of the relation.
     105
     106But you can always track complete history of one node based on history.
     107
     108=== Object ids ===
    100109The OSM server assigns each object a unique number, the **object ID** or **OSM ID**. A new object doesn't have an ID (it's ID is 0) until it is uploaded the first time to the OSM server.
    101110* Under **''Preferences -> [[Image(source:trunk/images/preferences/display.png,18,middle)]] [Preferences/Display Display Settings] -> Look and Feel''** it is possible to en- or disable the display of objects ids in the toggle dialogs.
    … …  
    110119}}}
    111120
    112 == Object versions ==
     121=== Object versions ===
    113122Each object has a **version**. The **version** is incremented whenever the object is uploaded to the server and the OSM server not only stores the most recent version of an object, but it's complete **history**.
    114123