Bounding box object, expressed with four coordinates.
Properties:
| Name | Type | Description | 
|---|---|---|
| left | Float | minimum abscissa  | 
        
| right | Float | maximum abscissa  | 
        
| bottom | Float | minimum ordinate  | 
        
| top | Float | maximum ordinate  | 
        
Bounding box object, expressed with four coordinates.
| Name | Type | Description | 
|---|---|---|
| left | Float | minimum abscissa  | 
        
| right | Float | maximum abscissa  | 
        
| bottom | Float | minimum ordinate  | 
        
| top | Float | maximum ordinate  |