+ format: '%Y-%m-%d %H:%M:%S',
+ fit: false
+ }
+ },
+ y: {
+ label: {
+ text: '°C',
+ position: 'outer-middle'
+ }
+ }
+ },
+ zoom: {
+ enabled: true
+ },
+ tooltip: {
+ format: {
+ name: function (name, ratio, id, index) {
+ var re = /\d m/;
+ var res = re.exec(name);
+ return res;