Wa-Tor

Author: O.Conrad (c) 2003
Menu: Simulation | Cellular Automata

Description

Wa-Tor - an ecological simulation of predator-prey populations - is based upon A. K. Dewdney's 'Computer Recreations' article in the December 1984 issue of Scientific American.

References

Dewdney, A.K. (1984): Sharks and fish Wage an ecological War on the toroidal planet Wa-Tor. Scientific American. pp. I4___22.

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Target System	grid, input, optional	`TARGET_TEMPLATE`	use this grid's system for output grids	-
Output	Wa-Tor	grid, output	`GRID`	-	-
Output	Cycles	table, output	`TABLE`	-	-
Options	Target Grid System	choice	`TARGET_DEFINITION`	-	Available Choices: [0] user defined [1] grid or grid system Default: 0
	Cellsize	floating point number	`TARGET_USER_SIZE`	-	Minimum: 0.000000 Default: 1.000000
	West	floating point number	`TARGET_USER_XMIN`	-	Default: 0.000000
	East	floating point number	`TARGET_USER_XMAX`	-	Default: 100.000000
	South	floating point number	`TARGET_USER_YMIN`	-	Default: 0.000000
	North	floating point number	`TARGET_USER_YMAX`	-	Default: 100.000000
	Columns	integer number	`TARGET_USER_COLS`	Number of cells in East-West direction.	Minimum: 1 Default: 101
	Rows	integer number	`TARGET_USER_ROWS`	Number of cells in North-South direction.	Minimum: 1 Default: 101
	Rounding	boolean	`TARGET_USER_FLAT`	Round bounding coordinates to multiples of cell size. Ignored if cell size has decimal places.	Default: 1
	Fit	choice	`TARGET_USER_FITS`	-	Available Choices: [0] nodes [1] cells Default: 0
	Grid System	grid system	`TARGET_SYSTEM`	-	-
	Refresh	boolean	`REFRESH`	-	Default: 1
	Initial Number of Fishes [%]	floating point number	`INIT_FISH`	-	Minimum: 0.000000 Maximum: 100.000000 Default: 30.000000
	Initial Number of Sharks [%]	floating point number	`INIT_SHARK`	-	Minimum: 0.000000 Maximum: 100.000000 Default: 7.500000
	Birth Rate of Fishes	integer number	`FISH_BIRTH`	-	Minimum: 0 Default: 3
	Birth Rate of Sharks	integer number	`SHARK_BIRTH`	-	Minimum: 0 Default: 12
	Max. Starvation Time for Sharks	integer number	`SHARK_STARVE`	-	Minimum: 0 Default: 4

Command Line


Usage: saga_cmd sim_cellular_automata 1 [-TARGET_DEFINITION ] [-TARGET_USER_SIZE ] [-TARGET_USER_XMIN ] [-TARGET_USER_XMAX ] [-TARGET_USER_YMIN ] [-TARGET_USER_YMAX ] [-TARGET_USER_COLS ] [-TARGET_USER_ROWS ] [-TARGET_USER_FLAT ] [-TARGET_USER_FITS ] [-TARGET_TEMPLATE ] [-GRID ] [-REFRESH ] [-INIT_FISH ] [-INIT_SHARK ] [-TABLE ] [-FISH_BIRTH ] [-SHARK_BIRTH ] [-SHARK_STARVE ]
  -TARGET_DEFINITION:  	Target Grid System
	choice
	Available Choices:
	[0] user defined
	[1] grid or grid system
	Default: 0
  -TARGET_USER_SIZE:	Cellsize
	floating point number
	Minimum: 0.000000
	Default: 1.000000
  -TARGET_USER_XMIN:	West
	floating point number
	Default: 0.000000
  -TARGET_USER_XMAX:	East
	floating point number
	Default: 100.000000
  -TARGET_USER_YMIN:	South
	floating point number
	Default: 0.000000
  -TARGET_USER_YMAX:	North
	floating point number
	Default: 100.000000
  -TARGET_USER_COLS:   	Columns
	integer number
	Minimum: 1
	Default: 101
  -TARGET_USER_ROWS:   	Rows
	integer number
	Minimum: 1
	Default: 101
  -TARGET_USER_FLAT:   	Rounding
	boolean
	Default: 1
  -TARGET_USER_FITS:   	Fit
	choice
	Available Choices:
	[0] nodes
	[1] cells
	Default: 0
  -TARGET_TEMPLATE:    	Target System
	grid, input, optional
  -GRID:               	Wa-Tor
	grid, output
  -REFRESH:            	Refresh
	boolean
	Default: 1
  -INIT_FISH:       	Initial Number of Fishes [%]
	floating point number
	Minimum: 0.000000
	Maximum: 100.000000
	Default: 30.000000
  -INIT_SHARK:      	Initial Number of Sharks [%]
	floating point number
	Minimum: 0.000000
	Maximum: 100.000000
	Default: 7.500000
  -TABLE:              	Cycles
	table, output
  -FISH_BIRTH:         	Birth Rate of Fishes
	integer number
	Minimum: 0
	Default: 3
  -SHARK_BIRTH:        	Birth Rate of Sharks
	integer number
	Minimum: 0
	Default: 12
  -SHARK_STARVE:       	Max. Starvation Time for Sharks
	integer number
	Minimum: 0
	Default: 4