Constant grid creation.
|   | Name | Type | Identifier | Description | Constraints | 
| Input | Target System (*) | grid, input, optional, CMD | 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 | 
 | Fit | choice | USER_FITS | - | Available Choices: [0] nodes [1] cells Default: 0 | 
 | Grid System | grid system | SYSTEM | - | - | 
| (*) optional |