web/static/seepark_web.js

   1 var chart = c3.generate({
   2         bindto: '#chart',
   3         transition: {
   4                 duration: null
   5         },
   6         title: {
   7                 text: 'Der See'
   8         },
   9         data: {
  10                 url: '/data/', // redirects to /data/1
  11                 mimeType: 'json',
  12                 xs: {
  13                         '0316a2193bff': '0316a2193bff_x',
  14                         '0316a21383ff': '0316a21383ff_x'
  15                 },
  16                 names: {
  17                         '0316a2193bff': 'Wassertemperatur in 4 m Tiefe',
  18                         '0316a21383ff': 'Wassertemperatur in 5 m Tiefe'
  19                 },
  20                 xFormat: '%Y-%m-%d %H:%M:%S'
  21         },
  22         axis: {
  23                 x: {
  24                         type: 'timeseries',
  25                         tick: {
  26                                 format: '%Y-%m-%d %H:%M',
  27                                 fit: false,
  28                                 multiline: true, // broken? so →
  29                                 rotate: -90
  30                         }
  31                 },
  32                 y: {
  33                         label: {
  34                                 text: 'Temperatur in °C',
  35                                 position: 'outer-middle'
  36                         },
  37                         tick: {
  38                                 format: function (d) {
  39                                         return d + '°';
  40                                 }
  41                         }
  42                 }
  43         },
  44         zoom: {
  45                 enabled: true,
  46                 onzoomend: function (domain) {
  47                         // UNIX epoch
  48                         var start = domain[0].getTime()/1000;
  49                         var end   = domain[1].getTime()/1000;
  50                         var duration = end - start;
  51                         // duration is now the diff of the "viewport in seconds"
  52                         // FIXME
  53                         var days = Math.round(duration / 86400 / 2);
  54                         if (days > 0) {
  55                                 loaddays(days);
  56                         }
  57                 }
  58         },
  59         tooltip: {
  60                 format: {
  61                         name: function (name, ratio, id, index) {
  62                                 var re = /\d m/;
  63                                 var res = re.exec(name);
  64                                 return res;
  65                         },
  66                         value: function (value, ratio, id, index) {
  67                                 return value.toFixed(2) + '°';
  68                         }
  69                 }
  70         },
  71         grid: {
  72                 y: {
  73                         show: true
  74                 }
  75         },
  76         regions: [
  77                 {axis: 'y', start: -999, end:   0, class: 'region-frozen'},
  78                 {axis: 'y', start:    0, end:  25, class: 'region-ok'},
  79                 {axis: 'y', start:   25, end: 100, class: 'region-warm'},
  80                 {axis: 'y', start:  100, end: 999, class: 'region-boiling'}
  81         ]
  82 });
  83
  84 function loaddays(days) {
  85         chart.load({
  86                 url: '/data/' + days,
  87                 mimeType: 'json'
  88         });
  89 }