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| Element | arc | |
|---|---|---|
| Attribute | Format | Remarks |
| radius | float | radius of the arc in nautical miles |
| segments | integer | number of segments to draw |
| clockwise | boolean | Draw arc clockwise if “true” (default: true) |
| stipple | integer | stipple line bitwise pattern definition |
| width | float | line width in pixels |
| color | string | color id name |
| r | byte | color RGB value (0-255) |
| g | byte | color RGB value (0-255) |
| b | byte | color RGB value (0-255) |
AIS publications such as AIP's use arc's to define lateral airspace borders. This element is especially designed to allow you to define exactly the same airspace in a map.
draw an arc with center position <point1> and given radius from <point2> to <point3> in a clockwise direction using the amount of segments given.
Three <point> elements are required.
Brussels CTR:
504434N 0043404E - an arc of circle, 10 NM radius, centered on 505405N 0042904E
and traced clockwise to 505203N 0044435E - 504434N 0043404E.
<arc radius="10" segments="45" clockwise="true">
<point lat="N0505405" lon="E0042904"/>
<point lat="N0505203" lon="E0044435"/>
<point lat="N0504434" lon="E0043404"/>
</arc>