javascript - D3 Update Graph -

-

really stucked on issue days. trying update d3 graph show how long takes run function on calculator. info get, show time taken , display on graph drew. issue here can't graph update.

codes graph: 

var margin = {top: 20, right: 20, bottom: 30, left: 50},         width = 400 - margin.left - margin.right,         height = 300 - margin.top - margin.bottom;       var x = d3.scale.linear()         .range([0, width])      var y = d3.scale.linear()         .range([height, 0]);      var xaxis = d3.svg.axis()         .scale(x)         .orient("bottom");      var yaxis = d3.svg.axis()         .scale(y)         .orient("left");      var line = d3.svg.line()         .x(function(d) { return x(d.date); })         .y(function(d) { return y(d.close); });      var svg = d3.select("body").append("svg")         .attr("width", width + margin.left + margin.right)         .attr("height", height + margin.top + margin.bottom)       .append("g")         .attr("transform", "translate(" + margin.left + "," + margin.top + ")");        var data = dataone.map(function(d) {           return {              date:d[0],              close: d[1]           };        });    console.log(data);     x.domain(d3.extent(data, function(d) { return d.date; }));   y.domain(d3.extent(data, function(d) { return d.close; }));    svg.append("g")       .attr("class", "x axis")       .attr("transform", "translate(0," + height + ")")       .call(xaxis);    svg.append("g")       .attr("class", "y axis")       .call(yaxis)     .append("text")       .attr("transform", "rotate(-90)")       .attr("y", 6)       .attr("dy", ".71em")       .style("text-anchor", "end")       .text("price ($)");    svg.append("path")       .datum(data)       .attr("class", "line")       .attr("d", line);

code update function , update of array:

 function updatearray(){     dataone.push(clickss-0.5,clickss);     updatedata(); } function updatedata() {  var data = dataone.map(function(d) {       return {          date:d[0],          close: d[1]       };     });      // scale range of data again      x.domain(d3.extent(data, function(d) { return d.date; }));     y.domain([0, d3.max(data, function(d) { return d.close; })]);  // select section want apply our changes var svg = d3.select("body").transition();  // make changes     svg.select(".line")   // change line         .duration(750)         .attr("d", valueline(data));     svg.select(".x.axis") // change x axis         .duration(750)         .call(xaxis);     svg.select(".y.axis") // change y axis         .duration(750)         .call(yaxis);

}

please advise on how can work. read quite few guides

couple things:

1.) in update function, line generator function line not valueline.

2.) looking @ accessor functions, don't think meant dataone.push(clickss-0.5,clickss); rather dataone.push([clickss-0.5,clickss]);. need array of arrays.

in addition, don't need map dataone array structure. change accessors:

x.domain(d3.extent(data, function(d) {   return d[0]; })); y.domain(d3.extent(data, function(d) {   return d[1]; })); ... var line = d3.svg.line()   .x(function(d) {     return x(d[0]);   })   .y(function(d) {     return y(d[1]);   });

here's code working , cleaned bit:

<!doctype html>  <html>    <head>    <script data-require="d3@3.5.3" data-semver="3.5.3" src="//cdnjs.cloudflare.com/ajax/libs/d3/3.5.3/d3.js"></script>  </head>    <body>    <script>          var dataone = [];      (var = 0; < 10; i++){        dataone.push([i,math.random()]);      }        var margin = {          top: 20,          right: 20,          bottom: 30,          left: 50        },        width = 400 - margin.left - margin.right,        height = 300 - margin.top - margin.bottom;          var x = d3.scale.linear()        .range([0, width])        var y = d3.scale.linear()        .range([height, 0]);        var xaxis = d3.svg.axis()        .scale(x)        .orient("bottom");        var yaxis = d3.svg.axis()        .scale(y)        .orient("left");        var line = d3.svg.line()        .x(function(d) {          return x(d[0]);        })        .y(function(d) {          return y(d[1]);        });        var svg = d3.select("body").append("svg")        .attr("width", width + margin.left + margin.right)        .attr("height", height + margin.top + margin.bottom)        .append("g")        .attr("transform", "translate(" + margin.left + "," + margin.top + ")");        // scale range of data again       x.domain(d3.extent(dataone, function(d) {        return d[0];      }));      y.domain([0, d3.max(dataone, function(d) {        return d[1];      })]);        svg.append("g")        .attr("class", "x axis")        .attr("transform", "translate(0," + height + ")")        .call(xaxis);        svg.append("g")        .attr("class", "y axis")        .call(yaxis)        .append("text")        .attr("transform", "rotate(-90)")        .attr("y", 6)        .attr("dy", ".71em")        .style("text-anchor", "end")        .text("price ($)");        svg.append("path")        .datum(dataone)        .attr("class", "line")        .attr("d", line)        .style("fill","none")        .style("stroke","steelblue");               function updatedata() {          // scale range of data again         x.domain(d3.extent(dataone, function(d) {          return d[0];        }));        y.domain([0, d3.max(dataone, function(d) {          return d[1];        })]);          // select section want apply our changes        var svg = d3.select("body").transition();          // make changes        svg.select(".line") // change line          .duration(750)          .attr("d", line(dataone));        svg.select(".x.axis") // change x axis          .duration(750)          .call(xaxis);        svg.select(".y.axis") // change y axis          .duration(750)          .call(yaxis);      }            setinterval(function(){        (var = 0; < 5; i++){          dataone.push([dataone.length + i, math.random()]);        }        updatedata();      },1000);          </script>  </body>    </html>


Comments

Post a Comment

Popular posts from this blog

javascript - Slick Slider width recalculation -

-
i'm trying add slide in panel on slick container css. carousel works except new width not being calculated when space has been added. recalibrate once advance next slide i'd happen each time panel opened or closed. i've tried adding both margin , padding, neither makes difference. ideas? https://jsfiddle.net/mhigley/dpf7mlpl/ html: <button type="button" id="button"><i class="fa fa-arrow-right"></i></button> <aside> <h2>slide in panel</h2> <ol> <li>list item</li> <li>list item</li> <li>list item</li> <li>list item</li> <li>list item</li> </ol> </aside> <main role="main"> <div class="sections"> <section> <article> <h2>first slide</h2> <p>lorem ipsum d...
Read more

jsf - PrimeFaces Datatable - What is f:facet actually doing? -

-
looking through primefaces code in app noticed following line: <f:facet name="header">#{trainsearch.traincount} trains</f:facet> it looks overriding header, makes sense, can explain me in little more detail? what happening line of code? complete code listed below: <p:datatable id = "results" value = "#{trainsearch.trains}" var = "train" rendered="#{not empty trainsearch.trains}" styleclass = "train-search-table horizontal-border"> <f:facet name="header">#{trainsearch.traincount} trains</f:facet> <p:column headertext = "train id"> <p:panelgrid columns="1" styleclass = "train-id-grid" layout = "grid"> <h:outputtext styleclass = "train-id-label" value="#{train.traini}"/> <h:outputtex...
Read more

angular2 services - Angular 2 RC 4 Http post not firing -

-
i trying fire post request app , it's not working, tried multiple ways. don't see request being fired under network tab in chrome. not sure problem is, appreciated. import { injectable } '@angular/core'; import { http, headers } '@angular/http'; @injectable() export class userservice{ private _url="users"; constructor(private _http: http){ } checkifusernameexists(username){ return this._http.get(this._url+"/"+username) .map(response => response.json()) } createuser(user){ let headers = new headers(); headers.append('content-type', 'application/json') console.log(json.stringify(user)); return this._http.post(this._url, json.stringify(user),{headers: headers}) .map(response => response.json()) } } first need capture error , solve error: this._http.post(this._url, json.stringify(user),{headers: headers}) .subscribe( ...
Read more