在primefaces饼图上显示小数位 [英] Displaying decimal places on primefaces pie chart

问题描述

我想检查如何显示3.3版饼图标签的小数位数?

I would like to check how do I display decimals for primefaces ver 3.3 pie chart label?

目前，我的图表中有两个比例.标签A和标签B.标签A的数字很大，如100000，但标签B的数字为100.因此，在饼图中，标签A不是100％.但是，primefaces会将其转换为100％，这是错误的.有什么办法可以显示小数位而不是整数作为饼图上的标签?

Currently, there are two proportions in my chart. Label A and Label B. Label A has a very big number like 100000 but label B has 100. Therefore, in the pie chart, Label A is not 100%. However, primefaces converts this to 100% which is wrong. Is there any way I can show the decimal places instead of whole numbers as labels on the pie chart?

推荐答案

定义扩展器函数，例如:

Define an extender function like:

function ext() {
    this.cfg.seriesDefaults.rendererOptions.dataLabelFormatString = '%.4s%%';
    this.cfg.seriesDefaults.rendererOptions.dataLabelThreshold = 0;
}

这将格式化您的输出标签，以显示小数点后最多4位的百分比.同样，默认情况下，jqPlot对于小于3％的区域将不显示任何标签.您必须用dataLabelThreshold = 0覆盖此值.

This will format your output labels to show percentage up to 4 digits after the decimal point. Also jqPlot by default, for areas smaller than 3% won't display any labels. You have to overwrite this value with dataLabelThreshold = 0.

最后将此扩展器功能附加到您的p:pieChart:

Finally attach this extender function on your p:pieChart:

<p:pieChart id="sample" value="#{testClazz.pieModel}"
                extender="ext" showDataLabels="true"/>

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