在值为空时显示数据标签中的N / A - Highcharts [英] Show N/A in datalabels, when value is null - Highcharts
问题描述
当数据为空时,我想在列图中显示N / A。
这就是我目前所要做的:
http://jsfiddle.net/ 90 amxpc1/1/
dataLabels:{
formatter:function(){
if (this.y == null){
returnN / A;
}
else {
return this.y;
}
}
}
但是,它不工作。我想达到的是类似于接受此问题的答案:
Highcharts:在数据标签中返回N / A值而不是0%
或此小提琴: http://jsfiddle.net/v5vJR/3/
我尝试修改列图,但它没有解决。
$ bar(反转图表)和柱形图只有不同的逻辑,例如列:
formatter:function(){
if(this.y == null){
var chart = this.series.chart ,
categoryWidth = chart.plotWidth / chart.xAxis [0] .categories.length,
offset =(this.point.x)* categoryWidth + categoryWidth / 2,
text = chart。 renderer.text('N / A',-999,-999).add();
text.attr({
x:chart.plotLeft + offset - text.getBBox()。width / 2,// center label
y:chart.plotTop + chart.plotHeight - 8 //填充
});
} else {
return this.y;
code
$ b现场演示
注意:
您可能希望存储 text
变量,以便在将图表隐藏一系列或缩放到图表时删除该文本。
I want to show "N/A" in a column chart, when the data is null.
This is what I am currently trying to do:
http://jsfiddle.net/90amxpc1/1/
dataLabels: {
formatter: function () {
if (this.y == null) {
return "N/A";
}
else {
return this.y;
}
}
}
But, its not working. What I want to achieve is similar to the accepted Answer to this Question:
Highcharts: Returning N/A value instead of 0% in data label
or this fiddle: http://jsfiddle.net/v5vJR/3/
I tried modifying it for the column chart, but it doesnt works out.
解决方案 There is just different logic for bar (inverted chart) and column chart, example for column:
formatter: function () {
if (this.y == null) {
var chart = this.series.chart,
categoryWidth = chart.plotWidth / chart.xAxis[0].categories.length,
offset = (this.point.x) * categoryWidth + categoryWidth / 2,
text = chart.renderer.text('N/A', -999, -999).add();
text.attr({
x: chart.plotLeft + offset - text.getBBox().width / 2, //center label
y: chart.plotTop + chart.plotHeight - 8 // padding
});
} else {
return this.y;
}
},
Live demo: http://jsfiddle.net/90amxpc1/4/
Note:
You may want to store text
variable to remove that text when hiding series or zooming into the chart.
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