Javascript examples for Chart.js:Chart Configuration
Range with chart.js
<html> <head> <meta name="viewport" content="width=device-width, initial-scale=1"> <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.5.0/Chart.min.js"></script> <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <script type="text/javascript"> window.onload=function(){/*from w w w . ja va 2s . c o m*/ var sampleData = [{ 'y': 426777.1, 'x': 18.123 }, { 'y': 258927.7, 'x': 46.8 }, { 'y': 5419.3, 'x': 1110.1 }, { 'y': 5136.33830766, 'x': 1138.878123 } ]; var ctx = document.getElementById("line-chart").getContext('2d'); var config = { type: 'line', data: { datasets: [{ data: sampleData, label: "Model", borderColor: "#3e95cd", fill: false }, { label: 'Data', fill: false, showLine: false, backgroundColor: "#FF0000", data: [{ x: 17.0, y: 454995.091169 }, { x: 1137.0, y: 3369.7047454 }, { x: 1138.0, y: 3539.605825 }, { x: 1140.0, y: 4927.1313084 } ], type: 'line' }] }, options: { title: { display: true, text: "test" }, scales: { xAxes: [{ type: 'logarithmic', position: 'bottom' }], yAxes: [{ type: 'logarithmic' }] } } }; var forecast_chart = new Chart(ctx, config); var slider = document.getElementById("myRange"); var output = document.getElementById("textInput"); slider.oninput = function() { document.getElementById('textInput').value = this.value; var tmpData= sampleData; for (var i = 0; i < tmpData.length; i++) { tmpData[i].y = parseInt(this.value) * tmpData[i].y; } forecast_chart.data.datasets[0].data = tmpData; forecast_chart.update(); } } </script> </head> <body> <div id="Global"> <div id="gauche"> <canvas id="line-chart" width="800" height="450"></canvas> </div> <br> <br> <br> <br> <br> <br> <br> <div id="droite"> <br> <label class="width1">parameter_1 : </label> <span class="width5">10</span> <input class="width2 slider" type="range" min="10" max="40" step="0.01" value="10" id="myRange"> <span class="width3">40</span> <input class="width4" type="text" id="textInput" value=""> </div> </div> </body> </html>