canvas fill text vanishes when hovering over chartjs pie chart

Question

I am using a doughnut chart from chartjs, and in the center of this canvas I am filling two lines of text. These show up fine after the initial animation, but when I hover o

Answer 1

Actually you can do this with a simple extension of the chart type you are using and moving your draw code to inside the draw override

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Preview

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Code

Chart.types.Doughnut.extend({
    name: "DoughnutAlt",
    draw: function () {
        Chart.types.Doughnut.prototype.draw.apply(this, arguments);

        this.chart.ctx.textBaseline = "middle";
        this.chart.ctx.fillStyle = 'black'
        this.chart.ctx.font = "50px Roboto";
        this.chart.ctx.textAlign = "center";
        this.chart.ctx.fillText(distributionChartData[3] + " %", 135, 120);
        this.chart.ctx.font = "20px Roboto";
        this.chart.ctx.fillText((distributionChartData[0] + distributionChartData[1] + distributionChartData[2]) + " Responses", 135, 160);
    }
});

var pieChart = document.getElementById("pieChart").getContext("2d");
new Chart(pieChart).DoughnutAlt(pieData, {
    percentageInnerCutout: 80, animationEasing: "easeOutQuart"
});

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Fiddle - http://jsfiddle.net/p979zyLj/