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= Tools > Create Circle =

[[JOSMImage(aligncircle,middle,link=,48,margin-right=20)]] ''Keyboard shortcut:'' **{{{Shift+O}}}**

**Create a regular polygon**
* from two or three selected nodes.
* of a selected way with only two or three nodes.

In both cases the nodes are used to determine the radius. The number of nodes the circle will contain is automatically calculted from the radius (by the formula `6 * r ^ (1/2)`). So bigger circles get more nodes. The minimum number of nodes is 6 and the number always rounded up to an even number. The direction of the circle way is anti-clockwise in areas with right-hand-traffic and clockwise in areas with [wikitr:/left-right-hand-traffic left-hand-traffic], to simplify creating correct roundabouts.

== See also ==
* [[JOSMImage(aligncircle,middle,24,link=)]] [wikitr:/Help/Action/AlignInCircle Align Nodes in Circle]
* [[Image(osm:source:applications/editors/josm/plugins/utilsplugin2/images/circlearc.png,24,middle,link=)]] [wikitr:/Help/Action/CreateCircleArc Circle Arc] (utilsplugin2)

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