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July 17, 2016 13:55
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mesa ChartModule.js for upgrading to v2 of Chart.js. I am not able to go any further.
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// This function creates the Chart widget. If updating the Chart.js library | |
// shipped with mesa, check the compatibility and modify the function as | |
// required. | |
// | |
// Chart.js version: 2.1.6 | |
// input arguments: | |
// series: Data to be plotted | |
// canvas_width: the width of the html5 canvas | |
// canvas_height: the height of the html5 canvas | |
var ChartModule = function(series, canvas_width, canvas_height) { | |
// Create the elements | |
// Create the tag: | |
var canvas_tag = "<canvas width='" + canvas_width + "' height='" + canvas_height + "' "; | |
canvas_tag += "style='border:1px dotted'></canvas>"; | |
// Append it to body: | |
var canvas = $(canvas_tag)[0]; | |
$("body").append(canvas); | |
// Create the context and the drawing controller: | |
var context = canvas.getContext("2d"); | |
// Prep the chart properties and series: | |
//var datasets = [{ | |
// // The label(title) of the whole data | |
// label: "MyData", | |
// fillColor: "rgba(151,187,205,0.5)", | |
// strokeColor: "rgba(151,187,205,0.8)", | |
// highlightFill: "rgba(151,187,205,0.75)", | |
// highlightStroke: "rgba(151,187,205,1)", | |
// // The y value in in y = f(x) graph | |
// data: [10,2,3,4,5] | |
// }]; | |
var datasets = [] | |
for (var i in series) { | |
var s = series[i]; | |
var new_series = {label: s.Label, strokeColor: s.Color, data: []}; | |
datasets.push(new_series); | |
} | |
//var datasets = [] | |
//for (var i in series) { | |
// var s = series[i]; | |
// var new_series = {label: s.Label, strokeColor: s.Color, data: []}; | |
// datasets.push(new_series); | |
//} | |
var lineChartData = { | |
// The x-axis labels in y=f(x) plots. | |
// These are just labels, not the actual values. | |
// Its our responsibility to keep the mapping. | |
//labels: [5, 4, 3, 20, 1], | |
labels: [], | |
datasets: datasets, | |
}; | |
//var options = { | |
// animation: false, | |
// datasetFill: false, | |
// pointDot: false, | |
// bezierCurve : false | |
//}; | |
// Options to be passed to the Chart. These are known as config in the | |
// documentation of Chart.js | |
var options = { | |
type: 'line', | |
responsive: true, | |
tension: 0.1, | |
fill: false, | |
data: lineChartData, | |
scales: { | |
xAxes: [{ | |
ticks: { | |
beginAtZero: false, | |
//suggestedMin: 1, | |
} | |
}] | |
} | |
}; | |
var chart = new Chart(context, options) | |
this.render = function(data) { | |
for (var i in data){ | |
lineChartData.datasets[0].data.push(data[i]) | |
} | |
lineChartData.labels.push(control.tick) | |
chart.update() | |
}; | |
//this.render = function(data) { | |
// chart.addData(data, control.tick); | |
//}; | |
this.reset = function() { | |
chart.destroy(); | |
data.labels = []; | |
chart = new Chart(context, options) | |
}; | |
} |
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