This is an empty box which straddles the map (or lane -- lanes and priorities are covered in the next section). It's really only intended for the rare feature on a map which has a span (both a start and stop position) in the lowest numbered lane (i.e. on the map) which won't overlap other features with this shape, such as a centromere. Many features drawn with the "box" shape tend to clutter a map hopelessly.
Like the dumbbell for the map shape, only you can't control the width. If the feature has only a start position, it will be drawn as just a dot (the end of the dumbbell). Here are several features drawn as the dumbbell.
This is the simplest shape as is ideal for single-point features. It is also a good choice for features with a span where you aren't concerned about showing the start and stop positions as the line is placed at the midpoint of the feature's span.
This feature is like rectangle missing a side where the open side point to the map on which the feature lives.
A vertical line with an arrowhead pointing to the top of the map.
A vertical line with an arrowhead pointing to the bottom of the map.
A vertical line with arrowheads at both ends.
A black-trimmed rectangle filled with the color of choice.
A single triangle pointing towards the map and placed at the feature's start position.
A single triangle pointing away from map and placed at the feature's start position.
