const config = {
type: 'line',
data: data,
options: {
indexAxis: 'y',
scales: {
x: {
type: 'linear',
display: true,
title: {
display: true,
text: 'Value'
}
},
y: {
type: 'realtime',
realtime: {
duration: 20000,
refresh: 1000,
delay: 2000,
onRefresh: onRefresh
}
}
},
interaction: {
intersect: false
}
}
};
const data = {
datasets: [
{
label: 'Dataset 1 (Linear Interpolation)',
backgroundColor: Utils.transparentize(Utils.CHART_COLORS.red, 0.5),
borderColor: Utils.CHART_COLORS.red,
borderDash: [8, 4],
data: [],
},
{
label: 'Dataset 2 (Cubic Interpolation)',
backgroundColor: Utils.transparentize(Utils.CHART_COLORS.blue, 0.5),
borderColor: Utils.CHART_COLORS.blue,
cubicInterpolationMode: 'monotone',
data: []
}
]
};
const onRefresh = chart => {
const now = Date.now();
chart.data.datasets.forEach(dataset => {
dataset.data.push({
x: Utils.rand(-100, 100),
y: now
});
});
};
const actions = [
{
name: 'Randomize',
handler(chart) {
chart.data.datasets.forEach(dataset => {
dataset.data.forEach(dataObj => {
dataObj.x = Utils.rand(-100, 100);
});
});
chart.update();
}
},
{
name: 'Add Dataset',
handler(chart) {
const datasets = chart.data.datasets;
const dsColor = Utils.namedColor(datasets.length);
const newDataset = {
label: 'Dataset ' + (datasets.length + 1),
backgroundColor: Utils.transparentize(dsColor, 0.5),
borderColor: dsColor,
data: []
};
datasets.push(newDataset);
chart.update();
}
},
{
name: 'Add Data',
handler(chart) {
onRefresh(chart);
chart.update();
}
},
{
name: 'Remove Dataset',
handler(chart) {
chart.data.datasets.pop();
chart.update();
}
},
{
name: 'Remove Data',
handler(chart) {
chart.data.datasets.forEach(dataset => {
dataset.data.shift();
});
chart.update();
}
}
];
