This tool calculates for each grid cell of the selected grid system the area that is covered by the input polygons layer. 
|   | Name | Type | Identifier | Description | Constraints | 
| Input | Polygons | Shapes, input | POLYGONS | - | - | 
 | Target System (*) | Grid, input, optional, CMD | TARGET_TEMPLATE | use this grid's system for output grids | - | 
| Output | Area of Coverage | Grid, output | AREA | - | - | 
| Options | Method | Choice | METHOD | Choose cell wise, if you have not many polygons. Polygon wise will show much better performance, if you have many (small) polygons. | Available Choices: [0] cell wise [1] polygon wise Default: 1 | 
 | Output | Choice | OUTPUT | - | Available Choices: [0] area [1] percentage Default: 1 | 
 | Only Selected Polygons | Boolean | SELECTION | - | Default: 1 | 
 | Target Grid System | Choice | TARGET_DEFINITION | - | Available Choices: [0] user defined [1] grid or grid system Default: 0 | 
 | Cellsize | Floating point | TARGET_USER_SIZE | - | Minimum: 0.000000 Default: 1.000000 | 
 | West | Floating point | TARGET_USER_XMIN | - | Default: 0.000000 | 
 | East | Floating point | TARGET_USER_XMAX | - | Default: 100.000000 | 
 | South | Floating point | TARGET_USER_YMIN | - | Default: 0.000000 | 
 | North | Floating point | TARGET_USER_YMAX | - | Default: 100.000000 | 
 | Columns | Integer | TARGET_USER_COLS | Number of cells in East-West direction. | Minimum: 1 Default: 100 | 
 | Rows | Integer | TARGET_USER_ROWS | Number of cells in North-South direction. | Minimum: 1 Default: 100 | 
 | Fit | Choice | TARGET_USER_FITS | - | Available Choices: [0] nodes [1] cells Default: 0 | 
 | Grid System | Grid system | TARGET_SYSTEM | - | - | 
| (*) optional |