Display item in legend even if value = 0 with Google Charts Tools Pie Chart

Question

I'm using Google Charts Tools, specifically the Pie Chart.

Naturally, if a item has a value of 0, it is not displayed in the pie (since it occupies 0% of the pie). However, it doesn't display in the legend either.

How can I manipulate the initialization options to still show a 0 value item in the legend, so that users can see that the item exists, it just has a 0 value?

Answer 1

setting sliceVisibilityThreshold as zero will solve your problem.

function drawVisualization() {   // Create and populate the data table.   var data = google.visualization.arrayToDataTable([     ['Task', 'Hours per Day'],     ['Work', 11],     ['Eat', 0],     ['Commute', 2],     ['Watch TV', 2],     ['Sleep', 7]   ]);    // Create and draw the visualization.   new google.visualization.PieChart(document.getElementById('visualization')).       draw(data, {title:"So, how was your day?",                  sliceVisibilityThreshold:0                  }); } ​