我正在建立一个实时销售板,它会自动更新柱形图,显示一组代理商的新销售数字。
我有一个函数updateChart(),它执行以下操作:
该示例以2个类别(2个人)及其销售数字开头。第一次更新删除了其中一个代理(他们删除了他们的销售),然后下一个更新将它们添加回来(他们将销售额添加回来)。
第二次更新后,第二个人的类别不是他们的名字,而是数字“2”。我甚至在chart.redraw()方法之前(或之后)控制.log记录xAxis类别,并记录正确的类别。
下面的JS小提琴正好显示了这个问题。
(编辑,小提琴之前有JS错误,现在显示问题)
作为参考,这里是updateChart()函数:
//this function updates the chart in the current view. it does not redraw the entire chart,
//it updates points and adds/removes x-axis items when needed
function updateChart()
{
var chart = $("#teamboard").highcharts();
var sales = getSalesObject();
//place all categories (keys) of sales object into an array
var newCategories = [];
for(var s in sales)
{
newCategories.push(s);
}
//remove extra data points from end of series if there are less categories now
//this loop will not run if newCategories is the same length or greater
for(var i = newCategories.length; i < chart.xAxis[0].categories.length; i++)
{
for(var j = 0; j < chart.series.length; j++)
{
chart.series[j].data[i].remove(false);
}
}
//if there are more new categories, we need to add that new data points to the end of the series
for(var i = chart.xAxis[0].categories.length; i < newCategories.length; i++)
{
for(var j = 0; j < chart.series.length; j++)
{
//temporarily add 0, we will go and update every point later
chart.series[j].addPoint(0, false);
}
}
//alphabetically sort the x-Axis
newCategories.sort();
//assign the new sorted categories to the x-Axis
chart.xAxis[0].setCategories(newCategories);
//loop through all categories and update cable, internet, phone
for(var i = 0; i < newCategories.length; i++)
{
chart.series[0].data[i].update(sales[newCategories[i]].cable, false);
chart.series[1].data[i].update(sales[newCategories[i]].internet, false);
chart.series[2].data[i].update(sales[newCategories[i]].phone, false);
}
chart.redraw();
}
示例销售对象:
{'Bart':{cable:4, internet:5, phone:5}, 'Andy':{cable:1, internet:1, phone:1}}
请帮忙!
答案 0 :(得分:1)
这可能是由正在进行的动画引起的,并试图更新积分,因此缺少某些东西。
实现这一目标的正确方法是使用setData。修复示例:http://jsfiddle.net/t3y6h/5/
function updateChart() {
var chart = $("#container").highcharts();
var sales = getSalesObject(salesObjectNumber++),
sorter = [], // temporary container for sorting data
d = [[],[],[]]; // temporary data point container
//place all categories (keys) of sales object into an array
var newCategories = [];
for (var s in sales) {
sorter.push([s, sales[s]]);
}
sorter.sort(function(a, b) {
return a[0] > b[0];
});
//place all categories (keys) of sales object into an array
var newCategories = [];
for (var s in sorter) {
newCategories.push(sorter[s][0]);
d[0].push(sorter[s][1].cable);
d[1].push(sorter[s][1].internet);
d[2].push(sorter[s][1].phone);
}
//assign the new sorted categories to the x-Axis
chart.xAxis[0].setCategories(newCategories, false);
//loop through all categories and update cable, internet, phone
for (var i = 0; i < newCategories.length; i++) {
chart.series[0].setData(d[0], false);
chart.series[1].setData(d[1], false);
chart.series[2].setData(d[2], false);
}
//log categories, apparently they were set correctly?
$("#log").append(chart.xAxis[0].categories + '<br />');
chart.redraw();
}
修改强>
另一种解决方案是添加具有指定x值的点,例如:http://jsfiddle.net/t3y6h/6/
代码:
//if there are more new categories, we need to add that new data points to the end of the series
for(var i = chart.xAxis[0].categories.length; i < newCategories.length; i++)
{
for(var j = 0; j < chart.series.length; j++)
{
//temporarily add 0, we will go and update every point later
chart.series[j].addPoint([i, 0], false);
}
}