seepark_web.js: print temperature in y axis with 1 decimal place

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

diff --git a/web/static/seepark_web.js b/web/static/seepark_web.js
index 459795acdb67462cf69144a339e4726fd799edc0..1af2da3c0d4668e163ffd0184bf37786752d892a 100644 (file)
--- a/web/static/seepark_web.js
+++ b/web/static/seepark_web.js
@@ -1,3 +1,5 @@
+var api_base_url = '/api/1/sensor/type/Wassertemperatur?mode=consolidated&format=c3';
+
 var chart = c3.generate({
        bindto: '#chart',
        transition: {
@@ -7,7 +9,8 @@ var chart = c3.generate({
                text: 'Der See'
        },
        data: {
-               url: '/data',
+//             url: '/data/', // redirects to /data/1
+               url: api_base_url + beginend(1),
                mimeType: 'json',
                xs: {
                        '0316a2193bff': '0316a2193bff_x',
@@ -17,7 +20,11 @@ var chart = c3.generate({
                        '0316a2193bff': 'Wassertemperatur in 4 m Tiefe',
                        '0316a21383ff': 'Wassertemperatur in 5 m Tiefe'
                },
-               xFormat: '%Y-%m-%d %H:%M:%S'
+               xFormat: '%Y-%m-%d %H:%M:%S',
+               colors: {
+                       '0316a2193bff': 'lightblue',
+                       '0316a21383ff': 'darkblue'
+               }
        },
        axis: {
                x: {
@@ -36,13 +43,25 @@ var chart = c3.generate({
                        },
                        tick: {
                                format: function (d) {
-                                       return d + '°';
+                                       return d.toFixed(1) + '°';
                                }
                        }
                }
        },
        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: {
@@ -52,9 +71,34 @@ var chart = c3.generate({
                                return res;
                        },
                        value: function (value, ratio, id, index) {
-                               return value + '°';
+                               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,
+               url: api_base_url + beginend(days),
+               mimeType: 'json'
+       });
+}
+
+function beginend(days) {
+       var now = Date.now();
+       var end = new Date(now).toISOString().substr(0, 19); // 2018-06-13T16:52:30.995Z
+       var begin = new Date(now - days * 60*60*24 * 1000).toISOString().substr(0, 19);
+       return '&begin=' + begin + '&end=' + end;
+}