Constant grid creation.

Name	Type	Identifier	Description	Constraints
Input
Target System	grid, input, optional	TEMPLATE	use this grid's system for output grids
Output
Target Grid	grid, output	OUT_GRID
Options
Name	text	NAME		Default: Constant Grid
Constant Value	floating point number	CONST		Default: 1.000000
Data Type	data type	TYPE		Available Choices: [0] bit [1] unsigned 1 byte integer [2] signed 1 byte integer [3] unsigned 2 byte integer [4] signed 2 byte integer [5] unsigned 4 byte integer [6] signed 4 byte integer [7] unsigned 8 byte integer [8] signed 8 byte integer [9] 4 byte floating point number [10] 8 byte floating point number Default: 9
Target Grid System	choice	DEFINITION		Available Choices: [0] user defined [1] grid or grid system Default: 0
Cellsize	floating point number	USER_SIZE		Minimum: 0.000000 Default: 1.000000
West	floating point number	USER_XMIN		Default: 0.000000
East	floating point number	USER_XMAX		Default: 100.000000
South	floating point number	USER_YMIN		Default: 0.000000
North	floating point number	USER_YMAX		Default: 100.000000
Columns	integer number	USER_COLS	Number of cells in East-West direction.	Minimum: 1 Default: 101
Rows	integer number	USER_ROWS	Number of cells in North-South direction.	Minimum: 1 Default: 101
Rounding	boolean	USER_FLAT	Round bounding coordinates to multiples of cell size. Ignored if cell size has decimal places.	Default: 1
Fit	choice	USER_FITS		Available Choices: [0] nodes [1] cells Default: 0