AxisSize

 
                         // resolution in EPSG:4326, each value is expressed in degrees
                         var firstAxisSize = {
                             "label": "Lat",
                             "value": 600
                          };

                          var secondAxisSize = {
                             "label": "Lon",
                             "value": 600
                          };

                          // resolution in EPSG:3857, each value is expressed in metres
                          var firstAxisSize = {
                             "label": "X",
                             "value": 1000
                          };

                          var secondAxisSize = {
                             "label": "Y",
                             "value": 1200
                          };