| Description: Defines the number of tiles in this set. Should be present and equal to the number of Tile objects if Tile is used; optional if Tile is not used. |
| Namespace Id: img | Steward: img | Class Name: Tiling | Type: ASCII_NonNegative_Integer |
| Minimum Value: 0 | Maximum Value: 18446744073709551615 | Minimum Characters: None | Maximum Characters: None |
| Unit of Measure Type: None | Default Unit Id: None | Attribute Concept: None | Conceptual Domain: INTEGER |
| Status: Active | Nillable: false | Pattern: [0-9]+ |
| Permissible Value(s) | No Values | |