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利用できる言語 — Waterways
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Logo. 地物 : 水域
One example for 地物 : 水域


水域は川、運河、小川に加えて、湖、貯水池、ドックなどを含む、 water の地物です。水門、堰、早瀬などの関連する地物も含みます。内陸の水路における経路案内の詳細については、 Inland navigation を参照してください。カヌーやラフティングのようなタグ付けの詳細についてはJA:激流スポーツを参照してください。人間が利用するために管理された水、例えばパイプ内の水や浄水場などについての詳細は Water management を参照してください。海や海での経路案内についての情報は、 MarineMarine navigation を参照してください。

選択肢が多いことを怖がる必要はありません。 waterway=river とだけタグ付けした単純なウェイから作り始めるのは良い方法です。個別にタグを追加するのも便利になります。みんなが望むような関連するタグを追加しておきましょう。

Linear water features: rivers, canals, streams etc

All rivers, canals and streams should normally be represented as a linear ways. The main types are waterway=river, waterway=canal or waterway=stream, waterway=brook, waterway=drain and waterway=ditch. This way used should point in the direction of water flow and connect with other linked waterway features to create a routable network.

Tidal sections of a waterway can be tagged with tidal=yes and if it is seasonal (a yearly cycle) use seasonal=*. For intermittent sections/areas use intermittent=yes. If a stream starts as as spring, the node can be tagged with natural=spring. The name=* tag is used to hold the name to the watercourse, and wikipedia=* for a link to a related Wikipedia page.

Point features used along to watercourses include waterway=weir, waterway=dam and ford=*. A section of waterway within a lock between the lock gates can be tagged with lock=* with node tagged waterway=lock_gate at each end. The name of the lock can be added using lock_name=* and/or lock_ref=*. boat=*, ship=* and CEMT=* tags can be used to specify if boats are allowed to use the watercourse.

Wide rivers, lakes, reservoirs and islands

In addition to a linear description of the watercourse, the riverbanks for wider rivers and canals can be defined in one of two ways. The simpler method is to create an area feature for each section of river and tag it with waterway=riverbank joined using a pair of shared nodes with the adjoining section.

At certain points along a larger river the area may take on the appearance of a lake or reservoir which can be mapped as such.

Lakes are tagged with natural=water+water=lake, reservoirs as natural=water+water=reservoir. Previously lakes were mapped as natural=water and reservoirs as landuse=reservoir.

Enclosed areas of water for shipping and other craft where the water level can be controlled by lock-gates or similar should be tagged with waterway=dock. It is a matter of judgement sometimes as to where a section of water is a wide river or a long thin lake/reservoir.

Islands in lakes/ponds etc should be tagged with the appropriate landuse=* or natural=* and will ideally be described as a 'inner' area by a multipolygon. Islands can in turn contain lakes and stream etc as well as other features.

Waterfalls, rapids and whitewater sports

For conventions and proposals for mapping waterfalls see JA:滝.

For whitewater, rapids and water sports (especially kayak and rafting) see WikiProject Whitewater Maps (overview) and JA:Whitewater sports for the actual tagging.

Man-made structures

Where a river or stream goes under a road, railway or similar the upper way should be tagged with bridge=yes and layer=1, alternatively tag the watercourse with tunnel=yes (tunnel=culvert for streams and drains) and layer=-1. Where a canal is carried over an aqueduct the way should be tagged with bridge=aqueduct.

Use man_made=pier for structures projecting out over the water and add a mooring=yes tag if boats can be moored alongside.

Other features:


See JA:海岸線 for details of how to map the border between land and the sea, together with natural=beach, natural=cliff and natural=wetland to describe the shoreline. See marine navigation, harbour and leisure=marina for features relating to shipping.




一部の河川は反転しています。つまり、山に向かって流れているという、物理的には不可能な形になっています。これらの皮を検出するには、 DEM を使用して、エラーを集めることができます。結果は maproulette ([1]) またはウェブサイト内 [2] で確認できます。