mirror of
https://github.com/chartjs/Chart.js.git
synced 2025-12-08 20:36:08 +00:00
Bubble Chart Type and Bubble Controller
This commit is contained in:
Tanner Linsley
parent
82541248a1
commit
65f9ee8a4a
206
samples/bubble.html
Normal file
206
samples/bubble.html
Normal file
@ -0,0 +1,206 @@
|
||||
<!doctype html>
|
||||
<html>
|
||||
|
||||
<head>
|
||||
<title>Bar Chart</title>
|
||||
<script src="../node_modules/jquery/dist/jquery.min.js"></script>
|
||||
<script src="../Chart.js"></script>
|
||||
<style type="text/css">
|
||||
canvas {
|
||||
border: 1px solid red;
|
||||
}
|
||||
</style>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
<div id="container" style="width: 100%; height: 25%;">
|
||||
<canvas id="canvas"></canvas>
|
||||
</div>
|
||||
<button id="randomizeData">Randomize Data</button>
|
||||
<button id="addDataset">Add Dataset</button>
|
||||
<button id="removeDataset">Remove Dataset</button>
|
||||
<button id="addData">Add Data</button>
|
||||
<button id="removeData">Remove Data</button>
|
||||
<button id="show">Show</button>
|
||||
<div>
|
||||
<h3>Legend</h3>
|
||||
<div id="legendContainer">
|
||||
</div>
|
||||
</div>
|
||||
<script>
|
||||
var randomScalingFactor = function() {
|
||||
return (Math.random() > 0.5 ? 1.0 : -1.0) * Math.round(Math.random() * 100);
|
||||
};
|
||||
var randomColorFactor = function() {
|
||||
return Math.round(Math.random() * 255);
|
||||
};
|
||||
var randomColor = function() {
|
||||
return 'rgba(' + randomColorFactor() + ',' + randomColorFactor() + ',' + randomColorFactor() + ',.7)';
|
||||
};
|
||||
|
||||
var bubbleChartData = {
|
||||
animation: {
|
||||
duration: 10000
|
||||
},
|
||||
datasets: [{
|
||||
label: "My First dataset",
|
||||
backgroundColor: randomColor(),
|
||||
data: [{
|
||||
x: randomScalingFactor(),
|
||||
y: randomScalingFactor(),
|
||||
r: Math.abs(randomScalingFactor()) / 5,
|
||||
}, {
|
||||
x: randomScalingFactor(),
|
||||
y: randomScalingFactor(),
|
||||
r: Math.abs(randomScalingFactor()) / 5,
|
||||
}, {
|
||||
x: randomScalingFactor(),
|
||||
y: randomScalingFactor(),
|
||||
r: Math.abs(randomScalingFactor()) / 5,
|
||||
}, {
|
||||
x: randomScalingFactor(),
|
||||
y: randomScalingFactor(),
|
||||
r: Math.abs(randomScalingFactor()) / 5,
|
||||
}, {
|
||||
x: randomScalingFactor(),
|
||||
y: randomScalingFactor(),
|
||||
r: Math.abs(randomScalingFactor()) / 5,
|
||||
}, {
|
||||
x: randomScalingFactor(),
|
||||
y: randomScalingFactor(),
|
||||
r: Math.abs(randomScalingFactor()) / 5,
|
||||
}, {
|
||||
x: randomScalingFactor(),
|
||||
y: randomScalingFactor(),
|
||||
r: Math.abs(randomScalingFactor()) / 5,
|
||||
}]
|
||||
}, {
|
||||
label: "My Second dataset",
|
||||
backgroundColor: randomColor(),
|
||||
data: [{
|
||||
x: randomScalingFactor(),
|
||||
y: randomScalingFactor(),
|
||||
r: Math.abs(randomScalingFactor()) / 5,
|
||||
}, {
|
||||
x: randomScalingFactor(),
|
||||
y: randomScalingFactor(),
|
||||
r: Math.abs(randomScalingFactor()) / 5,
|
||||
}, {
|
||||
x: randomScalingFactor(),
|
||||
y: randomScalingFactor(),
|
||||
r: Math.abs(randomScalingFactor()) / 5,
|
||||
}, {
|
||||
x: randomScalingFactor(),
|
||||
y: randomScalingFactor(),
|
||||
r: Math.abs(randomScalingFactor()) / 5,
|
||||
}, {
|
||||
x: randomScalingFactor(),
|
||||
y: randomScalingFactor(),
|
||||
r: Math.abs(randomScalingFactor()) / 5,
|
||||
}, {
|
||||
x: randomScalingFactor(),
|
||||
y: randomScalingFactor(),
|
||||
r: Math.abs(randomScalingFactor()) / 5,
|
||||
}, {
|
||||
x: randomScalingFactor(),
|
||||
y: randomScalingFactor(),
|
||||
r: Math.abs(randomScalingFactor()) / 5,
|
||||
}]
|
||||
}]
|
||||
|
||||
};
|
||||
|
||||
function updateLegend() {
|
||||
$legendContainer = $('#legendContainer');
|
||||
$legendContainer.empty();
|
||||
$legendContainer.append(window.myChart.generateLegend());
|
||||
}
|
||||
|
||||
window.onload = function() {
|
||||
var ctx = document.getElementById("canvas").getContext("2d");
|
||||
window.myChart = new Chart(ctx, {
|
||||
type: 'bubble',
|
||||
data: bubbleChartData,
|
||||
options: {
|
||||
responsive: true,
|
||||
}
|
||||
});
|
||||
|
||||
updateLegend();
|
||||
};
|
||||
|
||||
$('#randomizeData').click(function() {
|
||||
var zero = Math.random() < 0.2 ? true : false;
|
||||
$.each(bubbleChartData.datasets, function(i, dataset) {
|
||||
dataset.backgroundColor = randomColor();
|
||||
dataset.data = dataset.data.map(function() {
|
||||
return {
|
||||
x: randomScalingFactor(),
|
||||
y: randomScalingFactor(),
|
||||
r: Math.abs(randomScalingFactor()) / 5,
|
||||
};
|
||||
});
|
||||
});
|
||||
window.myChart.update();
|
||||
updateLegend();
|
||||
});
|
||||
|
||||
$('#addDataset').click(function() {
|
||||
var newDataset = {
|
||||
backgroundColor: randomColor(),
|
||||
data: []
|
||||
};
|
||||
|
||||
for (var index = 0; index < bubbleChartData.datasets[0].data.length; ++index) {
|
||||
newDataset.data.push({
|
||||
x: randomScalingFactor(),
|
||||
y: randomScalingFactor(),
|
||||
r: Math.abs(randomScalingFactor()) / 5,
|
||||
});
|
||||
}
|
||||
|
||||
bubbleChartData.datasets.push(newDataset);
|
||||
window.myChart.update();
|
||||
updateLegend();
|
||||
});
|
||||
|
||||
$('#addData').click(function() {
|
||||
if (bubbleChartData.datasets.length > 0) {
|
||||
|
||||
for (var index = 0; index < bubbleChartData.datasets.length; ++index) {
|
||||
//window.myChart.addData(randomScalingFactor(), index);
|
||||
bubbleChartData.datasets[index].data.push({
|
||||
x: randomScalingFactor(),
|
||||
y: randomScalingFactor(),
|
||||
r: Math.abs(randomScalingFactor()) / 5,
|
||||
});
|
||||
}
|
||||
|
||||
window.myChart.update();
|
||||
updateLegend();
|
||||
}
|
||||
});
|
||||
|
||||
$('#removeDataset').click(function() {
|
||||
bubbleChartData.datasets.splice(0, 1);
|
||||
window.myChart.update();
|
||||
updateLegend();
|
||||
});
|
||||
|
||||
$('#removeData').click(function() {
|
||||
|
||||
bubbleChartData.datasets.forEach(function(dataset, datasetIndex) {
|
||||
dataset.data.pop();
|
||||
});
|
||||
|
||||
window.myChart.update();
|
||||
updateLegend();
|
||||
});
|
||||
|
||||
$('#show').click(function() {
|
||||
document.getElementById('container').style.display = '';
|
||||
});
|
||||
</script>
|
||||
</body>
|
||||
|
||||
</html>
|
||||
39
src/charts/Chart.Bubble.js
Normal file
39
src/charts/Chart.Bubble.js
Normal file
@ -0,0 +1,39 @@
|
||||
(function() {
|
||||
"use strict";
|
||||
|
||||
var root = this;
|
||||
var Chart = root.Chart;
|
||||
var helpers = Chart.helpers;
|
||||
|
||||
var defaultConfig = {
|
||||
hover: {
|
||||
mode: 'single',
|
||||
},
|
||||
|
||||
scales: {
|
||||
xAxes: [{
|
||||
type: "linear", // bubble should probably use a linear scale by default
|
||||
position: "bottom",
|
||||
id: "x-axis-0", // need an ID so datasets can reference the scale
|
||||
}],
|
||||
yAxes: [{
|
||||
type: "linear",
|
||||
position: "left",
|
||||
id: "y-axis-0",
|
||||
}],
|
||||
},
|
||||
|
||||
tooltips: {
|
||||
template: "(<%= value.x %>, <%= value.y %>)",
|
||||
multiTemplate: "<%if (datasetLabel){%><%=datasetLabel%>: <%}%>(<%= value.x %>, <%= value.y %>)",
|
||||
},
|
||||
|
||||
};
|
||||
|
||||
Chart.Bubble = function(context, config) {
|
||||
config.options = helpers.configMerge(defaultConfig, config.options);
|
||||
config.type = 'bubble';
|
||||
return new Chart(context, config);
|
||||
};
|
||||
|
||||
}).call(this);
|
||||
218
src/controllers/controller.bubble.js
Normal file
218
src/controllers/controller.bubble.js
Normal file
@ -0,0 +1,218 @@
|
||||
(function() {
|
||||
|
||||
"use strict";
|
||||
|
||||
var root = this,
|
||||
Chart = root.Chart,
|
||||
helpers = Chart.helpers;
|
||||
|
||||
Chart.defaults.bubble = {
|
||||
hover: {
|
||||
mode: "single"
|
||||
},
|
||||
|
||||
scales: {
|
||||
xAxes: [{
|
||||
type: "linear", // bubble should probably use a linear scale by default
|
||||
position: "bottom",
|
||||
id: "x-axis-0", // need an ID so datasets can reference the scale
|
||||
}],
|
||||
yAxes: [{
|
||||
type: "linear",
|
||||
position: "left",
|
||||
id: "y-axis-0",
|
||||
}],
|
||||
},
|
||||
|
||||
tooltips: {
|
||||
template: "(<%= value.x %>, <%= value.y %>, <%= value.r %>)",
|
||||
multiTemplate: "<%if (datasetLabel){%><%=datasetLabel%>: <%}%>(<%= value.x %>, <%= value.y %>, <%= value.r %>)",
|
||||
},
|
||||
};
|
||||
|
||||
|
||||
Chart.controllers.bubble = function(chart, datasetIndex) {
|
||||
this.initialize.call(this, chart, datasetIndex);
|
||||
};
|
||||
|
||||
helpers.extend(Chart.controllers.bubble.prototype, {
|
||||
|
||||
initialize: function(chart, datasetIndex) {
|
||||
this.chart = chart;
|
||||
this.index = datasetIndex;
|
||||
this.linkScales();
|
||||
this.addElements();
|
||||
},
|
||||
updateIndex: function(datasetIndex) {
|
||||
this.index = datasetIndex;
|
||||
},
|
||||
|
||||
linkScales: function() {
|
||||
if (!this.getDataset().xAxisID) {
|
||||
this.getDataset().xAxisID = this.chart.options.scales.xAxes[0].id;
|
||||
}
|
||||
|
||||
if (!this.getDataset().yAxisID) {
|
||||
this.getDataset().yAxisID = this.chart.options.scales.yAxes[0].id;
|
||||
}
|
||||
},
|
||||
|
||||
getDataset: function() {
|
||||
return this.chart.data.datasets[this.index];
|
||||
},
|
||||
|
||||
getScaleForId: function(scaleID) {
|
||||
return this.chart.scales[scaleID];
|
||||
},
|
||||
|
||||
addElements: function() {
|
||||
|
||||
this.getDataset().metaData = this.getDataset().metaData || [];
|
||||
|
||||
helpers.each(this.getDataset().data, function(value, index) {
|
||||
this.getDataset().metaData[index] = this.getDataset().metaData[index] || new Chart.elements.Point({
|
||||
_chart: this.chart.chart,
|
||||
_datasetIndex: this.index,
|
||||
_index: index,
|
||||
});
|
||||
}, this);
|
||||
},
|
||||
addElementAndReset: function(index) {
|
||||
this.getDataset().metaData = this.getDataset().metaData || [];
|
||||
var point = new Chart.elements.Point({
|
||||
_chart: this.chart.chart,
|
||||
_datasetIndex: this.index,
|
||||
_index: index,
|
||||
});
|
||||
|
||||
// Reset the point
|
||||
this.updateElement(point, index, true);
|
||||
|
||||
// Add to the points array
|
||||
this.getDataset().metaData.splice(index, 0, point);
|
||||
|
||||
},
|
||||
removeElement: function(index) {
|
||||
this.getDataset().metaData.splice(index, 1);
|
||||
},
|
||||
|
||||
reset: function() {
|
||||
this.update(true);
|
||||
},
|
||||
|
||||
buildOrUpdateElements: function buildOrUpdateElements() {
|
||||
// Handle the number of data points changing
|
||||
var numData = this.getDataset().data.length;
|
||||
var numPoints = this.getDataset().metaData.length;
|
||||
|
||||
// Make sure that we handle number of datapoints changing
|
||||
if (numData < numPoints) {
|
||||
// Remove excess bars for data points that have been removed
|
||||
this.getDataset().metaData.splice(numData, numPoints - numData);
|
||||
} else if (numData > numPoints) {
|
||||
// Add new elements
|
||||
for (var index = numPoints; index < numData; ++index) {
|
||||
this.addElementAndReset(index);
|
||||
}
|
||||
}
|
||||
},
|
||||
|
||||
update: function update(reset) {
|
||||
var points = this.getDataset().metaData;
|
||||
|
||||
var yScale = this.getScaleForId(this.getDataset().yAxisID);
|
||||
var xScale = this.getScaleForId(this.getDataset().xAxisID);
|
||||
var scaleBase;
|
||||
|
||||
if (yScale.min < 0 && yScale.max < 0) {
|
||||
scaleBase = yScale.getPixelForValue(yScale.max);
|
||||
} else if (yScale.min > 0 && yScale.max > 0) {
|
||||
scaleBase = yScale.getPixelForValue(yScale.min);
|
||||
} else {
|
||||
scaleBase = yScale.getPixelForValue(0);
|
||||
}
|
||||
|
||||
// Update Points
|
||||
helpers.each(points, function(point, index) {
|
||||
this.updateElement(point, index, reset);
|
||||
}, this);
|
||||
|
||||
},
|
||||
|
||||
updateElement: function(point, index, reset) {
|
||||
var yScale = this.getScaleForId(this.getDataset().yAxisID);
|
||||
var xScale = this.getScaleForId(this.getDataset().xAxisID);
|
||||
var scaleBase;
|
||||
|
||||
if (yScale.min < 0 && yScale.max < 0) {
|
||||
scaleBase = yScale.getPixelForValue(yScale.max);
|
||||
} else if (yScale.min > 0 && yScale.max > 0) {
|
||||
scaleBase = yScale.getPixelForValue(yScale.min);
|
||||
} else {
|
||||
scaleBase = yScale.getPixelForValue(0);
|
||||
}
|
||||
|
||||
helpers.extend(point, {
|
||||
// Utility
|
||||
_chart: this.chart.chart,
|
||||
_xScale: xScale,
|
||||
_yScale: yScale,
|
||||
_datasetIndex: this.index,
|
||||
_index: index,
|
||||
|
||||
// Desired view properties
|
||||
_model: {
|
||||
x: reset ? xScale.getPixelForDecimal(0.5) : xScale.getPixelForValue(this.getDataset().data[index], index, this.index, this.chart.isCombo),
|
||||
y: reset ? scaleBase : yScale.getPixelForValue(this.getDataset().data[index], index, this.index),
|
||||
// Appearance
|
||||
radius: reset ? 0 : point.custom && point.custom.radius ? point.custom.radius : this.getRadius(this.getDataset().data[index]),
|
||||
backgroundColor: point.custom && point.custom.backgroundColor ? point.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().backgroundColor, index, this.chart.options.elements.point.backgroundColor),
|
||||
borderColor: point.custom && point.custom.borderColor ? point.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().borderColor, index, this.chart.options.elements.point.borderColor),
|
||||
borderWidth: point.custom && point.custom.borderWidth ? point.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().borderWidth, index, this.chart.options.elements.point.borderWidth),
|
||||
skip: point.custom && point.custom.skip ? point.custom.skip : this.getDataset().data[index] === null,
|
||||
|
||||
// Tooltip
|
||||
hitRadius: point.custom && point.custom.hitRadius ? point.custom.hitRadius : helpers.getValueAtIndexOrDefault(this.getDataset().hitRadius, index, this.chart.options.elements.point.hitRadius),
|
||||
},
|
||||
});
|
||||
|
||||
point.pivot();
|
||||
},
|
||||
|
||||
getRadius: function(value) {
|
||||
return value.r || this.chart.options.elements.point.radius;
|
||||
},
|
||||
|
||||
draw: function(ease) {
|
||||
var easingDecimal = ease || 1;
|
||||
|
||||
// Transition and Draw the Points
|
||||
helpers.each(this.getDataset().metaData, function(point, index) {
|
||||
point.transition(easingDecimal);
|
||||
point.draw();
|
||||
}, this);
|
||||
|
||||
},
|
||||
|
||||
setHoverStyle: function(point) {
|
||||
// Point
|
||||
var dataset = this.chart.data.datasets[point._datasetIndex];
|
||||
var index = point._index;
|
||||
|
||||
point._model.radius = point.custom && point.custom.hoverRadius ? point.custom.hoverRadius : (helpers.getValueAtIndexOrDefault(dataset.hoverRadius, index, this.chart.options.elements.point.hoverRadius)) + this.getRadius(this.getDataset().data[point._index]);
|
||||
point._model.backgroundColor = point.custom && point.custom.hoverBackgroundColor ? point.custom.hoverBackgroundColor : helpers.getValueAtIndexOrDefault(dataset.hoverBackgroundColor, index, helpers.color(point._model.backgroundColor).saturate(0.5).darken(0.1).rgbString());
|
||||
point._model.borderColor = point.custom && point.custom.hoverBorderColor ? point.custom.hoverBorderColor : helpers.getValueAtIndexOrDefault(dataset.hoverBorderColor, index, helpers.color(point._model.borderColor).saturate(0.5).darken(0.1).rgbString());
|
||||
point._model.borderWidth = point.custom && point.custom.hoverBorderWidth ? point.custom.hoverBorderWidth : helpers.getValueAtIndexOrDefault(dataset.hoverBorderWidth, index, point._model.borderWidth);
|
||||
},
|
||||
|
||||
removeHoverStyle: function(point) {
|
||||
var dataset = this.chart.data.datasets[point._datasetIndex];
|
||||
var index = point._index;
|
||||
|
||||
point._model.radius = point.custom && point.custom.radius ? point.custom.radius : this.getRadius(this.getDataset().data[point._index]);
|
||||
point._model.backgroundColor = point.custom && point.custom.backgroundColor ? point.custom.backgroundColor : helpers.getValueAtIndexOrDefault(this.getDataset().backgroundColor, index, this.chart.options.elements.point.backgroundColor);
|
||||
point._model.borderColor = point.custom && point.custom.borderColor ? point.custom.borderColor : helpers.getValueAtIndexOrDefault(this.getDataset().borderColor, index, this.chart.options.elements.point.borderColor);
|
||||
point._model.borderWidth = point.custom && point.custom.borderWidth ? point.custom.borderWidth : helpers.getValueAtIndexOrDefault(this.getDataset().borderWidth, index, this.chart.options.elements.point.borderWidth);
|
||||
}
|
||||
});
|
||||
}).call(this);
|
||||
Loading…
x
Reference in New Issue
Block a user