dlg_circle

AspEdit manual Circle dialog box

Purpose

Add / insert / edit a circle or a circle segment.

Access

Via the Add element dialog box, to create a new circle / segment,
By double clicking on any line in the list of the Area dialog box, belonging to a circle.

Functioning

General

Either use the latitude and longitude fields to enter the values separately, or use the Lat / Lon fields to enter both at once.
Tip: use the copy / paste function: copy the coordinates from the aeronautical publication, and paste them in the Lat / Lon field.
See coordinates for information on coordinate conventions, units and formatting.
Always double check the result in the static field, below the end point area. eg. If the Lat / Lon field can't handle a separator, it may be required to paste latitude and longitude separately in the respective fields.

Full circles

A full circle can be defined by giving the center point and the radius.
It can also be defined as a segment, with identical start and end points.
The setting for "clockwise" is irrelevant for the use in AspEdit, but due to the conventions used in some navigation computers, "clockwise" should be selected.

Circle segments

Start point: at least one element must be defined before the circle in the Area dialog box. The last point before the segment will be used as the segment's starting point.
Center point: specify the point, either manually or by pasting.
Radius: Leave "Auto". The radius is calculated by AspEdit, being the average between the center-to-start and the center-to-end distances. If a radius is given, it is ignored.
Clockwise: specifies the truning direction of the segment, and thus determines which part of the circle will be drawn. Check the result on the map, invert the selection if required.