javascript - Highcharts.js DateTime on x axis coming from JSON only displays number -


i'm struggling simple line graph highcharts.js. have json data coming in asp.net mvc controller:

public jsonresult getsensorlinedata(string sensorname)     {         list<sensormeasurement> result= this.sqlsensormeasuresrepository.findallmeasurements(sensorname).tolist();          list<string> days = new list<string>();         list<decimal> values = new list<decimal>();          foreach (var item in result)         {             values.add(item.value);             days.add(item.datetime.tostring());         }          dynamic data = new         {             categories=days,             values = values         };          return json(data, jsonrequestbehavior.allowget);     }

in cshtml file i'm doing this:

 homedataservice.init('@this.baseurl()');          homedataservice.gettemperaturelinedata("roomtemperature", function myfunction(data) {             var datacategories=[];              (var = 0; < data.categories.length; i++) {                 var strval = data.categories[i];                 var datetimeparts = strval.split(" ");                 var datepart = datetimeparts[0];                 var timepart = datetimeparts[1];                  var dateparts = datepart.split(".");                 var timeparts = timepart.split(":"); //german datetime string coming asp.net                   var date = new date(dateparts[2], (dateparts[1] - 1), dateparts[0], timeparts[0], timeparts[1]);                 data.categories[i]=(date.gettime());              }             var chart;             $('#temperature-line').highcharts({                 chart: {                     type: 'line'                 },                 title: {                     text: ''                 },                 subtitle: {                     text: ''                 },                 xaxis: {                     type: 'datetime',                     categories:data.categories,                     minortickinterval: 10,                     mintickinterval:10,                  },                 yaxis: {                     min: 0,                     title: {                         text: 'temperature'                     }                 },                  plotoptions: {                     column: {                         pointpadding: 0.2,                         borderwidth: 0                     }                 },                 series: [{                     name: 'temperature',                     data: data.values                 }]             });          });

as can see i'm transforming german datetime highcharts can interpret it. doesn't. output: enter image description here

update: ok i'm returning controller:

enter image description here

and changed chart code (see below) when run browser hangs. doing wrong?

var chart;             $('#temperature-line').highcharts({                 chart: {                     type: 'line'                 },                 title: {                     text: ''                 },                 subtitle: {                     text: ''                 },                 xaxis: {                     type: 'datetime'                  },                 yaxis: {                     min: 0,                     title: {                         text: 'temperature'                     }                 },                  plotoptions: {                     column: {                         pointpadding: 0.2,                         borderwidth: 0                     }                 },                 series: [{                     name: 'temperature',                     data: data                 }]             });          });

you can't use datetime axis , categories - it's strictly 1 or other axis type.

you need either remove categories, , send timestamps data x values, or format dates way want them displayed , use them categories.

if displaying time series data, makes more sense use datetime values instead of categories.


Comments

Post a Comment

Popular posts from this blog

Why does Ruby on Rails generate add a blank line to the end of a file? -

running rails generate controller foo home results in: class foocontroller < application controller def home end end (there's nothing on line in actual file, blank line) is there purpose blank line? it's common use newline indicate end of line, last line. many editors (like vi, use) add in newline silently. consensus text files (especially in unix world) should end in newline, , there have been problems historically if wasn't present. why should text files end newline? the tool used count lines in file "wc" counts newlines in file, without trailing newline show 3 instead of 4. it improves readability of templates used in generator. consider: https://github.com/rails/rails/blob/master/railties/lib/rails/generators/rails/controller/templates/controller.rb to remove trailing newline, template have last line of: end<% end -%> instead of: end <% end -%> that seems less readable me. the discussion below refers ...
Read more

keyboard - Smiles and long press feature in Android -

i've created android keyboard. how add features inserting smilies, , using long keypresses display symbols? to create long-press behavior allows select several options pop-up menu, follow guide (specifically pop-up menu section): http://developer.android.com/guide/topics/ui/menus.html smileys (also known emoticons) combination of keys, understood programs , parsed same way. have do, when clicks smiley face on keyboard, simulate pressing of key combination matching emoticon. example, when clicks smiley, should simulate key presses ':' , ')' :). here's list of emoticons: http://en.wikipedia.org/wiki/list_of_emoticons
Read more

node.js - Bad Request - node js ajax post -

i'm using express 3.0 , node v0.11.0. have button submits form , i'm using ajax post data json object node server. client code is: $('#contact').submit(function(e) { console.log('submit called'); var formdata = json.stringify($('form').serializeobject()); console.log(formdata); $.ajax({ url: "http://localhost:3000/savedata/", type: "post", datatype: 'json', data: {objectdata: formdata}, contenttype: "application/json", complete: function() { console.log('process complete'); }, success: function(data) { console.log('process sucess'); }, error: function() { console.log('process error'); }, }); return false; }); then on server: var express = require('express'); var app = express(); app.set('views', __dirname + '/views'); app.set('view engine', 'jade'); app.use(express.bodyparser());...
Read more