凹坑js直线y轴在条形图 [英] dimple js straight line y-axis over bar chart

问题描述

我试图在dimple js条形图上绘制平均值，高值和低值直线。我不知道他们如何在y轴（成本）上画直线，将穿过酒吧。这里是一个小调，有高，低和平均值保存到相应的变量，需要绘制在图表。任何解决方案？ jsfiddle链接： http://jsfiddle.net/Ra2xS/14/

I am trying to draw Average, High and Low value straight line on a dimple js bar chart. I have no clue how they can be drawn on y-axis (cost) as straight line that will cut through the bars. Here is the fiddle that has high, low and average values saved into corresponding variable that needed to be drawnon the chart. Any solution? jsfiddle link: http://jsfiddle.net/Ra2xS/14/

var dim = {"width":590,"height":450}; //chart container width
var data = [{"date":"01-02-2010","cost":"11.415679194952766"},{"date":"01-03-2010","cost":"10.81875691467018"},{"date":"01-04-2010","cost":"12.710197879070897"}];

//y- axis (cost) values to plot as straight line over bar chart in different colours
var avg = "11.65";
var high= "12.71";
var low = "10.82";

function barplot(id,dim,data)
{
    keys = Object.keys(data[0]);
    var xcord = keys[0];
    var ycord = keys[1];
    var svg = dimple.newSvg(id, dim.width, dim.height);

    var myChart = new dimple.chart(svg,data);
    myChart.setBounds(60, 30, 505, 305);        

    var x = myChart.addCategoryAxis("x", xcord);
    x.addOrderRule(xcord);
    x.showGridlines = true;

    var y = myChart.addMeasureAxis("y", ycord);
    y.showGridlines = true;
    y.tickFormat = ',.1f';    

    var s = myChart.addSeries(null, dimple.plot.bar);
    var s1 = myChart.addSeries(null, dimple.plot.line);
    s1.lineWeight = 3;
    s1.lineMarkers = true;

    myChart.draw(1500);

}

barplot("body",dim,data);

推荐答案

您可以添加一个单独的系列自己的数据，不幸的是有一个错误与多行系列在版本1.1.5这意味着行标记去haywire（所以我已经从下面的代码中删除它们）。好消息是我刚刚完成了所有的折线图代码，这个问题将在下一个版本（在一个星期左右），固定的线也将正确地通过从x轴上升而不是衰落

You can do it by adding a separate series with it's own data, unfortunately there's a bug with multiple line series in version 1.1.5 which means line markers go haywire (so I've removed them from the code below). The good news is I've just finished rewriting all the line chart code and this problem will be fixed in the next version (coming in a week or so), also the line will animate properly by rising from the x axis instead of fading in from black.

var dim = {"width":590,"height":450}; //chart container width
var data = [{"date":"01-02-2010","cost":"11.415679194952766"},{"date":"01-03-2010","cost":"10.81875691467018"},{"date":"01-04-2010","cost":"12.710197879070897"}];


function barplot(id,dim,data)
{
    keys = Object.keys(data[0]);
    var xcord = keys[0];
    var ycord = keys[1];
    var svg = dimple.newSvg(id, dim.width, dim.height);
    var parser = d3.time.format("%d-%m-%Y")
    var dateReader = function (d) { return parser.parse(d[xcord]); }
    var start = d3.time.month.offset(d3.min(data, dateReader), -1);
    var end = d3.time.month.offset(d3.max(data, dateReader), 1);

    var myChart = new dimple.chart(svg,data);
    myChart.setBounds(60, 30, 505, 305);        

    //var x = myChart.addCategoryAxis("x", xcord);
    var x = myChart.addTimeAxis("x", xcord, "%d-%m-%Y","%b %Y");
    x.overrideMin = start;
    x.overrideMax = end;
    x.addOrderRule(xcord);
    x.showGridlines = true;
    x.timePeriod = d3.time.months;
    x.floatingBarWidth = 100;

    var y = myChart.addMeasureAxis("y", ycord);
    y.showGridlines = true;
    y.tickFormat = ',.1f';    

    var s1 = myChart.addSeries(null, dimple.plot.bar);
    var s2 = myChart.addSeries(null, dimple.plot.line);
    s2.lineWeight = 3;

    var s3 = myChart.addSeries("Price Break", dimple.plot.line);
    s3.data = [
        { "Price Break" : "high", "cost" : 12.71, "date" : parser(start) }, 
        { "Price Break" : "high", "cost" : 12.71, "date" : parser(end) },
        { "Price Break" : "avg", "cost" : 11.65, "date" : parser(start) }, 
        { "Price Break" : "avg", "cost" : 11.65, "date" : parser(end) },
        { "Price Break" : "low", "cost" : 10.82, "date" : parser(start) }, 
        { "Price Break" : "low", "cost" : 10.82, "date" : parser(end) }
    ];

    myChart.draw(1500);

}

barplot("body",dim,data);

http://jsfiddle.net/Ra2xS/28/

这篇关于凹坑js直线y轴在条形图的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！