Method for determining a set of boundary points in a lattice

A method for determining a boundary of an area within a lattice, the method comprising:

• inputting a lattice;
• normalizing the first lattice by transforming x and y coordinates of the first lattice into i and j coordinates of an array, each point within the array having a defense value assigned thereto;
• selecting a starting position within the array;
• defining a desired defense value;
• comparing the defense value of the starting position to the desired defense value;
• iteratively moving the starting position until a starting position is found that matches the desired defense value and defining the starting position as the first boundary point;
• analyzing points within the array that are adjacent to the first boundary point and comparing respective defense values to the desired defense value;
• defining points having defense values equal to the desired defense value as subsequent boundary points thereby forming a set of boundary points;
• combining the set of boundary points with map data to produce a map display having the set of boundary points displayed thereon.

A system for identifying a set of boundary points within a lattice, the system comprising:

• a processor operatively coupled to an input device;
• a display operatively coupled to the processor;
• and
• a memory operatively coupled to the processor,
• wherein the memory includes a boundary routine adapted to be executed on the processor, and the boundary routine is adapted to normalize a lattice received from the input device, analyze each point in the normalized lattice for a particular defense value, and identify each point in the normalized lattice having the particular defense value, thereby producing a set of boundary points, and sending the set of boundary points to the display