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HistogramModuleEaten.js
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HistogramModuleEaten.js
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// HistogramModule.js
var HistogramModule = function(bins, 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];
$("#elements").append(canvas);
// Create the context and the drawing controller:
var context = canvas.getContext("2d");
// Prep the chart properties and series:
var datasets = [{
label: "Distance of directly eaten food from nearest safe spot.",
fillColor: "rgba(0,127,255,0.5)",
strokeColor: "rgba(0,127,255,0.8)",
highlightFill: "rgba(0,127,255,0.75)",
highlightStroke: "rgba(0,127,255,1)",
data: []
}];
// Add a zero value for each bin
for (var i in bins)
datasets[0].data.push(0);
var data = {
labels: bins,
datasets: datasets
};
var options = {
scaleBeginsAtZero: true
};
// Create the chart object
var chart = new Chart(context,{'type': 'bar', 'data': data, 'options': options});
// Now what?
this.render = function(data) {
for (var i in data)
chart.data.datasets[0].data[i] = data[i];
chart.update();
};
this.reset = function() {
chart.destroy();
chart = new Chart(context,{'type': 'bar', 'data': data, 'options': options});
};
};