I have a Pareto chart (using Chart.js Version: 2.0.2) and i need to display values inside of the bars and under the line.
Any help will be very appreciated:
This is the code (hope that it is useful for somebody):
<canvas id="canvas"></canvas>
<script type="text/javascript">
var data = {
labels: ["8","7","9","11","10"],
datasets: [{
type: "line",
label: "Acumulado",
borderColor: "#BA1E14",
backgroundColor: "#BA1E14",
pointBorderWidth: 5,
fill: false,
data: [34.04,57.45,76.60,89.36,100.00],
yAxisID: 'y-axis-2'
},{
type: "bar",
label: "Asistencia",
borderColor: "#56B513",
backgroundColor: "#56B513",
data: [16,11,9,6,5],
yAxisID: 'y-axis-1'
},{
type: "bar",
label: "SoluciĆ³n",
borderColor: "#000FAA",
backgroundColor: "#000FAA",
data: [16,11,9,6,5],
yAxisID: 'y-axis-1'
}]
};
var options = {
scales: {
xAxes: [{
stacked: true,
scaleLabel: {
display: true,
labelString: "Estaciones"
}
}],
yAxes: [{
type: "linear",
position: "left",
id: "y-axis-1",
stacked: true,
ticks: {
suggestedMin: 0
},
scaleLabel: {
display: true,
labelString: "Minutos"
}
},{
type: "linear",
position: "right",
id: "y-axis-2",
ticks: {
suggestedMin: 0,
callback: function(value) {
return value + "%";
}
},
scaleLabel: {
display: true,
labelString: "Porcentaje"
}
}]
}
};
window.onload = function() {
var ctx = document.getElementById("canvas").getContext("2d");
window.myBar = new Chart(ctx, {
type: 'bar',
data: data,
options: options
});
};
</script>
Right now the chart looks like this: And i need it to look like this:
This is the answer i developed (only in the options object):
var options = {
animation: {
onComplete: function() {
var ctx = this.chart.ctx;
ctx.textAlign = "center";
ctx.textBaseline = "middle";
this.chart.config.data.datasets.forEach(function(dataset) {
ctx.font = "20px Arial";
switch (dataset.type) {
case "line":
ctx.fillStyle = "Black";
dataset.metaData.forEach(function(p) {
ctx.fillText(p._chart.config.data.datasets[p._datasetIndex].data[p._index], p._model.x, p._model.y - 20);
});
break;
case "bar":
ctx.fillStyle = "White";
dataset.metaData.forEach(function(p) {
ctx.fillText(p._chart.config.data.datasets[p._datasetIndex].data[p._index], p._model.x, p._model.y + 20);
});
break;
}
});
}
}
...
};
And this is the result: