Assumptions and Requirements

Assumptions:

1. No feature crosses 360 degree boundary. This boundary is set at the

tail of the aircraft to minimize omission of an item of interest. For

craft not having a tail, assume that the 360 degree boundary is in

the direction opposite of intended travel.

2. A feature with an arc distance from an obstacle > 10 degrees is no a

part of that obstacle.

3. And outlier feature is one that is greater than ten degrees of arc

from the next closest feature in an obstacle.

Requirements:

Below is an improved set of requirements. This list has been refined

based on experiences gained on producing the implementation to this stage.

1. An object shall be considered a collection of Nmin or more features

clustered together, not more than Nd (ten degrees) apart.

Default configuration follows:

Nd = 10, Nmin = 4

2. For {Theta: 0 <= Theta < 360}

Scan feature points from text file, floating point values

3. Input text file shall be structured with a series of comma separated

floating point values, nominally formatted as...

aaa.aaa,bbb.bbb,ccc.ccc,...

Assume the file has <CR><LF> at the end.

4. Create a list of features, ListOfFeatures:

Attributes: PositionOnCircleDeg, PrevFeature, NextFeature

Implementation: vector

5. Output a list of feature locations in units degrees to standard output.