How to use
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Hello,
how can i use this plugin to show a line chart. I have postet the following example code from https://blazingspider.com/wp-demo/187/chart-js-time-scale-sample/#more-187 into a page, but it doesn’t work.Can anyone help me?
Example code from the website:[BlazingChart charttype="chartjs" source="a Chart Snippet" options="bundle"] <script src="//cdnjs.cloudflare.com/ajax/libs/moment.js/2.13.0/moment.min.js"></script> <style> canvas { -moz-user-select: none; -webkit-user-select: none; -ms-user-select: none; } </style> <div style="width:75%;"> <canvas id="canvas"></canvas> </div> <br> <br> <button id="randomizeData">Randomize Data</button> <button id="addData">Add Data</button> <button id="removeData">Remove Data</button> <script> window.onload = function() { function randomScalingFactor() { return Math.round(Math.random() * 100 * (Math.random() > 0.5 ? -1 : 1)); } function randomColorFactor() { return Math.round(Math.random() * 255); } function randomColor(opacity) { return 'rgba(' + randomColorFactor() + ',' + randomColorFactor() + ',' + randomColorFactor() + ',' + (opacity || '.3') + ')'; } function newDate(days) { return moment().add(days, 'd').toDate(); } function newDateString(days) { return moment().add(days, 'd').format(); } var config = { type: 'line', data: { datasets: [{ label: "Dataset with string point data", data: [{ x: newDateString(0), y: randomScalingFactor() }, { x: newDateString(2), y: randomScalingFactor() }, { x: newDateString(4), y: randomScalingFactor() }, { x: newDateString(5), y: randomScalingFactor() }], fill: false }, { label: "Dataset with date object point data", data: [{ x: newDate(0), y: randomScalingFactor() }, { x: newDate(2), y: randomScalingFactor() }, { x: newDate(4), y: randomScalingFactor() }, { x: newDate(5), y: randomScalingFactor() }], fill: false }] }, options: { responsive: true, title:{ display:true, text:"Chart.js Time Point Data" }, scales: { xAxes: [{ type: "time", display: true, scaleLabel: { display: true, labelString: 'Date' } }], yAxes: [{ display: true, scaleLabel: { display: true, labelString: 'value' } }] } } }; jQuery.each(config.data.datasets, function(i, dataset) { dataset.borderColor = randomColor(0.4); dataset.backgroundColor = randomColor(0.5); dataset.pointBorderColor = randomColor(0.7); dataset.pointBackgroundColor = randomColor(0.5); dataset.pointBorderWidth = 1; }); jQuery('#randomizeData').click(function() { jQuery.each(config.data.datasets, function(i, dataset) { jQuery.each(dataset.data, function(j, dataObj) { dataObj.y = randomScalingFactor(); }); }); window.myLine.update(); }); jQuery('#addData').click(function() { if (config.data.datasets.length > 0) { var lastTime = myLine.scales['x-axis-0'].labelMoments[0].length ? myLine.scales['x-axis-0'].labelMoments[0][myLine.scales['x-axis-0'].labelMoments[0].length - 1] : moment(); var newTime = lastTime .clone() .add(1, 'day') .format('MM/DD/YYYY HH:mm'); for (var index = 0; index < config.data.datasets.length; ++index) { config.data.datasets[index].data.push({ x: newTime, y: randomScalingFactor() }); } window.myLine.update(); } }); jQuery('#removeData').click(function() { config.data.datasets.forEach(function(dataset, datasetIndex) { dataset.data.pop(); }); window.myLine.update(); }); var ctx = document.getElementById("canvas").getContext("2d"); window.myLine = new Chart(ctx, config); }; </script>
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Viewing 5 replies - 1 through 5 (of 5 total)
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