| Class Summary | 
| mxGmlConstants | This class contains constants used in the Import of gml documents. | 
| mxGmlData | Represents a Data element in the GML Structure. | 
| mxGmlEdge | Represents a Data element in the GML Structure. | 
| mxGmlGraph | Represents a Graph element in the GML Structure. | 
| mxGmlKey | Represents a Key element in the GML Structure. | 
| mxGmlKeyManager | This is a singleton class that contains a map with the key elements of the
 document. | 
| mxGmlNode | Represents a Data element in the GML Structure. | 
| mxGmlPort | Represents a Port element in the GML Structure. | 
| mxGmlShapeEdge | This class represents the properties of a JGraph edge. | 
| mxGmlShapeNode |  | 
| mxGmlUtils | This class implements several GML utility methods. |