Setting the seed for a 2-D automaton is very similar to setting the seed for a 1-D automaton. The only difference is that
each level consists of a grid of values. The Seed tab looks like,
Each level of the seed represents a time-step of the automaton. If your update rule goes back only one time-step then you will need only one level in your seed. If you use more than one previous time-step in the update you may want to have more than one seed level. Recall that if the update rule must go outside the automaton (including the seed) it will use the default element.
You can set the number of rows, columns and levels by the spinners above the grid. Also the Viewing Level spinner tells you what level you are currently looking at. The program can take a maximum of 100 rows, 100 columns and 20 levels. Once the number of rows, columns and levels are selected simply fill in the grid with the seed elements you wish to use.
There are five tools for the seed tab.