问题描述
m使用以下代码生成上面的google图表:
var data = google.visualization.arrayToDataTable([
['Date','Tickets'],
['11 / 05/15',1],
['10 / 05/15',0],
['09 / 05/15',0],
['08 / 05/15',0],
['07 / 05/15',0],
['06 / 05 / 15',0],
['05 / 05/15',0],
['04 / 05/15',0],
]);
var columnChartOptions = {
title:,
legend:{position:'none'},
width:'100%',
高度:'100%',
颜色:[#27ae60,#2980b9,#e67e22,#e74c3c,#e74c3c],
chartArea:{left:' 8%',顶部:'8%',宽度:85%,高度:70%},
vAxis:{
minValue:1,
格式:'#'
},
google.visualization.ColumnChart(document.getElementById('ticket-history-graph'))。
draw(data,columnChartOptions);
然而,它会产生以下错误的间隔计数:
我需要对vAxis定义进行哪些更改才能解决此问题?我试过不同的最小值和最大值都无济于事。我还必须补充说,当使用更高的数字时,这不是问题,只有更小的计数。
您的问题是格式:'#'
,这就是你得到两个零和三个零的原因(当你舍入到零小数,并且图表试图呈现值[0 ,0.25,0.5,0.75,1],它们被舍入为[0,0,1,1,1],因此重复它们)。我的建议是你请查看属性vAxis.gridlines.count 。
我做了一个小提琴,我检查图中的maxValue是否为1或2,如果是这样,我指定网格线为2或3的计数,如果它是无论是1还是2,它都使用Google自动生成。
检查并查看您是否按照我所做的操作:
请记住尝试将某些值更改为更高/更低值以查看其工作原理。
//获取所有不同的票务信息,按默认顺序排序,所以你必须得到最后一个值才能得到最高值。
var maxValue = data.getDistinctValues(1)[data.getDistinctValues(1).length - 1]
//指定gridCount为null,如果它没有输入任何如果在下面,它仍然是空的
var gridCount = null
//检查最高值是1还是2否则将gridCount保留为空
if(maxValue == 1 ){
gridCount = 2
}
if(maxValue == 2){
gridCount = 3
}
以及columnChartOptions的添加:
vAxis :{
gridlines:{
//指定var gridCount的网格线数量,如果它仍然指定为null,它将使用Google自动生成。
count:gridCount
},
I'm using the following code to generate the above google chart:
var data = google.visualization.arrayToDataTable([
['Date', 'Tickets'],
['11/05/15',1],
['10/05/15',0],
['09/05/15',0],
['08/05/15',0],
['07/05/15',0],
['06/05/15',0],
['05/05/15',0],
['04/05/15',0],
]);
var columnChartOptions = {
title: "",
legend: { position: 'none' },
width: '100%',
height: '100%',
colors: ["#27ae60", "#2980b9", "#e67e22", "#e74c3c", "#e74c3c"],
chartArea: { left: '8%', top: '8%', width: "85%", height: "70%" },
vAxis: {
minValue: 1,
format:'#'
},
new google.visualization.ColumnChart(document.getElementById('ticket-history-graph')).
draw(data,columnChartOptions);
However it produces the following wrong interval counts:
What changes do I need to make to the vAxis definition to correct this? I've tried varying min and max values to no avail. I must also add that when higher numbers are used this is not a problem, it's only with lower counts.
Your problem is the format:'#'
, which is the reason why you get two zeros and three ones (as you round to zero decimals, and the graph tries to present the values [0, 0.25, 0.5, 0.75, 1] which are rounded to [0, 0, 1, 1, 1], therefore duplicates them).
My suggestion is that you check out the property vAxis.gridlines.count documentation.
I made a fiddle, where I check if the maxValue in the graph is 1 or 2, if so I specify the gridlines to either the count of 2 or 3, and if it's neither 1 or 2, it uses googles own automatic generation.Check and see if you follow how I've done: jsfiddle
Remember to try and change some values to higher/lower to see how it works.
//Get all distinct ticketsales, sorted ascending by default, so you have to get the last value to get the highest one.
var maxValue = data.getDistinctValues(1)[data.getDistinctValues(1).length - 1]
// Specify gridCount to null, so if it doesn't enter any of the if's below, it will still be null
var gridCount = null
//check if the highest value is 1 or 2 else leave gridCount to null
if (maxValue == 1) {
gridCount = 2
}
if (maxValue == 2) {
gridCount = 3
}
Aswell as the addition to the columnChartOptions:
vAxis: {
gridlines: {
//specify the amount of gridlines to var gridCount, if it's still specified as null, it will use googles automatic generation.
count: gridCount
},
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