tooltip: 2 decimal places are enough

[chrisu/seepark.git] / web / static / seepark_web.js

diff --git a/web/static/seepark_web.js b/web/static/seepark_web.js
index 8f09465a1ceb69a8360e36ae2d73f7054e6e40fc..f5f2f6a413fe4c0e87f33f2355402518fe5894f1 100644 (file)
--- a/web/static/seepark_web.js
+++ b/web/static/seepark_web.js
@@ -1,10 +1,13 @@
 var chart = c3.generate({
        bindto: '#chart',
+       transition: {
+               duration: null
+       },
        title: {
-               text: 'Temperaturen'
+               text: 'Der See'
        },
        data: {
-               url: '/data',
+               url: '/data/', // redirects to /data/1
                mimeType: 'json',
                xs: {
                        '0316a2193bff': '0316a2193bff_x',
@@ -20,19 +23,38 @@ var chart = c3.generate({
                x: {
                        type: 'timeseries',
                        tick: {
-                               format: '%Y-%m-%d %H:%M:%S',
-                               fit: false
+                               format: '%Y-%m-%d %H:%M',
+                               fit: false,
+                               multiline: true, // broken? so →
+                               rotate: -90
                        }
                },
                y: {
                        label: {
-                               text: '°C',
+                               text: 'Temperatur in °C',
                                position: 'outer-middle'
+                       },
+                       tick: {
+                               format: function (d) {
+                                       return d + '°';
+                               }
                        }
                }
        },
        zoom: {
-               enabled: true
+               enabled: true,
+               onzoomend: function (domain) {
+                       // UNIX epoch
+                       var start = domain[0].getTime()/1000;
+                       var end   = domain[1].getTime()/1000;
+                       var duration = end - start;
+                       // duration is now the diff of the "viewport in seconds"
+                       // FIXME
+                       var days = Math.round(duration / 86400 / 2);
+                       if (days > 0) {
+                               loaddays(days);
+                       }
+               }
        },
        tooltip: {
                format: {
@@ -40,8 +62,28 @@ var chart = c3.generate({
                                var re = /\d m/;
                                var res = re.exec(name);
                                return res;
+                       },
+                       value: function (value, ratio, id, index) {
+                               return value.toFixed(2) + '°';
                        }
                }
-       }
+       },
+       grid: {
+               y: {
+                       show: true
+               }
+       },
+       regions: [
+               {axis: 'y', start: -999, end:   0, class: 'region-frozen'},
+               {axis: 'y', start:    0, end:  25, class: 'region-ok'},
+               {axis: 'y', start:   25, end: 100, class: 'region-warm'},
+               {axis: 'y', start:  100, end: 999, class: 'region-boiling'}
+       ]
 });
 
+function loaddays(days) {
+       chart.load({
+               url: '/data/' + days,
+               mimeType: 'json'
+       });
+}