Changes between Version 54 and Version 55 of Help/Concepts/Object
- Timestamp:
- 2016-05-01T21:12:55+02:00 (9 years ago)
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Help/Concepts/Object
v54 v55 9 9 == Nodes, ways, and relations == #NodesWaysRelations 10 10 11 === Tags ===11 === Tags (also a OSM data primitive) === #Tags 12 12 13 13 Tags provide meaning to the objects. Without them, any other object would be useless and meaningless. Each of ''three other data primitives'' '''can have multiple tags'''. … … 21 21 We will cover tags in more detail below, but first will cover all other data primitives. 22 22 23 === Nodes ===23 === Nodes (also a OSM data primitive) === #Nodes 24 24 [[Image(source:trunk/images/data/node.png,20,bottom,margin-right=15,nolink)]] A **node** is an individual point with a defined position. ''With respective tags'' it can be used to indicate shops, benches, individual trees or points of drinking water. 25 25 26 === Ways ===26 === Ways (also a OSM data primitive) === #Ways 27 27 [[Image(source:trunk/images/data/way.png,20,middle,margin-right=15,margin-bottom=5,nolink)]] A **way** is a sequence of nodes. OSM **way** used to represent linear objects, ''with respective tags'' it can used to describe: a river bank, tree row, kerbs in the streets (among other uses). 28 28 … … 32 32 Sometimes single area is not enough to represent an object (for example, a lake with an island in it), then you have to use a [wiki:Help/Concepts/Object#typemultipolygon multi-polygon] 33 33 34 === Relations ===34 === Relations (also a OSM data primitive) === #Relations 35 35 36 36 ==== In most cases you don't need them ====