The circle command is used to draw a circle on the map.
The circle command terminates any segment which is being constructed and forms a segment on its own - it does not form part of any following segment.
Note that the .EWM file format has no concept of circles. MapComp converts the specification of the circle command into a sequence of short straight lines in the .EWM file. In doing this MapComp uses a simple "Mercator" calculation for determining a point in terms of a distance and bearing from the centre of the circle so large circles will not appear accurately.
The syntax of the circle command is:
| circle <centre> <radius> [ <point-count> ] |
| <centre> | The latitude and longitude (in the standard format) of the centre of the circle. |
| <radius> | The radius of the arc in nautical miles. Minimum 1nm. Negative values not allowed (unlike the arc command). |
| <point-count> | Optional. The number of points generated in the .EWM file for the circle. This defaults to 60 points. |
For an example of the circle command see the Brize Norton example.