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Created April 3, 2015 14:54
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D3 on Angular: Reusable Components (click and drag to brush, click to remove brush)
Raw
index.html
<!DOCTYPE html>
<meta charset="utf-8">
<style>
body {
font: 12px sans-serif;
}
.background {
fill: url(#background-gradient);
shape-rendering: geometricPrecision;
}
.axis path,
.axis line {
display: none;
}
.tick text {
fill: #fff;
}
.line {
fill: none;
stroke: #fff;
stroke-width: 1.5px;
clip-path: url(#clip);
}
.date-line {
fill: none;
stroke: #fff;
stroke-opacity: .6;
stroke-width: 1px;
shape-rendering: crispEdges;
}
.area {
fill: url(#area-gradient);
clip-path: url(#clip);
}
.dot {
stroke: #fff;
fill: #FF4330;
stroke-width: 1.5px;
clip-path: url(#clip);
}
.label-small {
fill: #fff;
fill-opacity: 1;
font-size: 12px;
}
.label-large {
fill: #fff;
fill-opacity: 1;
font-size: 16px;
}
.icon {
fill: #fff;
stroke: #fff;
stroke-width: 1.5px;
shape-rendering: geometricPrecision;
}
.brush .extent {
fill: #fff;
fill-opacity: .125;
shape-rendering: crispEdges;
}
</style>
<body>
<div ng-app="myApp" ng-controller="Ctrl">
<line-chart
data="dataOne">
</line-chart>
<line-chart
data="dataTwo"
scatter>
</line-chart>
</div>
</body>
<script src="http://d3js.org/d3.v3.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.0.7/angular.min.js"></script>
<script>
angular.module('myApp', [])
.directive('scatter', Scatter)
.directive('lineChart', LineChart);
function LineChart($parse) {
return {
restrict: 'E',
scope: {
data: '='
},
controller: function ($scope, $element, $attrs) {
this.getScatterElement = getScatterElement;
this.getX = getX;
this.getY = getY;
function getScatterElement() {
return svg;
}
function getX() {
return x;
}
function getY() {
return y;
}
$scope.$on('brush:set', onBrushSetHandler);
var margin = {top: 60, right: 20, bottom: 30, left: 50},
width = 960 - margin.left - margin.right,
height = 180 - margin.top - margin.bottom;
var parseDate = d3.time.format("%d-%b-%y").parse;
var x = d3.time.scale()
.range([0, width]);
var y = d3.scale.linear()
.range([height, 0]);
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom");
var line = d3.svg.line()
.x(function(d) { return x(d.date); })
.y(function(d) { return y(d.rate); });
var area = d3.svg.area()
.x(function(d) { return x(d.date); })
.y0(height)
.y1(function(d) { return y(d.rate); });
var svg = d3.select($element[0]).append("svg")
.attr("class", "svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom);
svg.append("rect")
.attr("class", "background")
.attr("rx", "5px")
.attr("ry", "5px")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom);
svg = svg.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
svg.append("defs").append("clipPath")
.attr("id", "clip")
.append("rect")
.attr("width", width)
.attr("height", height);
$scope.data.forEach(function(d) {
d.date = parseDate(d.date);
d.rate = +d.rate;
});
var maxValue = d3.max($scope.data, function(d) { return d.rate; }) + 20,
minValue = d3.min($scope.data, function(d) { return d.rate; }) - 20;
x.domain(d3.extent($scope.data, function(d) { return d.date; }));
y.domain([minValue, maxValue]);
svg.append("linearGradient")
.attr("id", "background-gradient")
.attr("gradientUnits", "userSpaceOnUse")
.attr("x1", 0).attr("y1", 0)
.attr("x2", 0).attr("y2", height)
.selectAll("stop")
.data([
{offset: "0%", color: "#FF9250"},
{offset: "100%", color: "#FF4330"}
])
.enter().append("stop")
.attr("offset", function(d) { return d.offset; })
.attr("stop-color", function(d) { return d.color; });
svg.append("linearGradient")
.attr("id", "area-gradient")
.attr("gradientUnits", "userSpaceOnUse")
.attr("x1", 0).attr("y1", y(0))
.attr("x2", 0).attr("y2", y(d3.max($scope.data, function(d) { return d.rate; })))
.selectAll("stop")
.data([
{offset: "40%", color: "#fff", opacity: "0%"},
{offset: "100%", color: "#fff", opacity: "30%"}
])
.enter().append("stop")
.attr("offset", function(d) { return d.offset; })
.attr("stop-color", function(d) { return d.color; })
.attr("stop-opacity", function(d) { return d.opacity; });
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(" + (-15) + "," + height + ")")
.call(xAxis);
svg.append("path")
.datum($scope.data)
.attr("class", "line")
.attr("d", line);
svg.append("path")
.datum($scope.data)
.attr("class", "area")
.attr("d", area);
svg.append("g").selectAll("line")
.data([
{y1: y(minValue), y2: y(minValue), x1: 0, x2: width},
{y1: y((maxValue+minValue)/2), y2: y((maxValue+minValue)/2), x1: 0, x2: width},
{y1: y(maxValue), y2: y(maxValue), x1: 0, x2: width},
])
.enter().append("line")
.attr("class", "date-line")
.attr("y1", function(d) { return d.y1; })
.attr("y2", function(d) { return d.y2; })
.attr("x1", function(d) { return d.x1; })
.attr("x2", function(d) { return d.x2; });
svg.append("g").selectAll("text")
.data([
{text: d3.round(minValue, 0), x: width, y: y(minValue) - 5, anchor: "end", labelClass: "label-small"},
{text: d3.round(maxValue, 0), x: width, y: y(maxValue) + 15, anchor: "end", labelClass: "label-small"},
{text: "Daily Avg: " + d3.round(d3.mean($scope.data ,function (d) { return d.rate}), 0), x: 50, y: y(maxValue) - 5, anchor: "start", labelClass: "label-small"},
{text: "Calories Burned", x: 50, y: y(maxValue) - 25, anchor: "start", labelClass: "label-large"},
{text: d3.round($scope.data[0].rate, 0) + "cal", x: width, y: y(maxValue) - 25, anchor: "end", labelClass: "label-large"},
{text: "Today", x: width, y: y(maxValue) - 5, anchor: "end", labelClass: "label-small"}
])
.enter().append("text")
.attr("class", function(d) { return d.labelClass; })
.text(function(d) { return d.text; })
.attr("x", function(d) { return d.x; })
.attr("y", function(d) { return d.y; })
.attr("text-anchor", function(d) { return d.anchor; });
svg.append("path")
.attr("d", d3.svg.symbol()
.size(function(d) { return 400; })
.type(function(d) { return "triangle-up"; }))
.attr("class", "icon")
.attr("transform", "translate(" + 25 + "," + (-20) + ")");
var brush = d3.svg.brush()
.x(x)
.on("brushend", brushed);
svg.append("g")
.attr("class", "x brush")
.call(brush)
.selectAll("rect")
.attr("y", 0)
.attr("height", height);
function brushed() {
var domain = brush.empty() ? d3.extent($scope.data, function(d) { return d.date; }) : brush.extent();
$scope.$emit('brush:changed', domain);
}
function display(domain) {
x.domain(domain);
svg.select(".area").transition().duration(500).attr("d", area);
svg.select(".line").transition().duration(500).attr("d", line);
svg.select(".x.axis").transition().duration(500).call(xAxis);
d3.selectAll(".brush").call(brush.clear());
}
function onBrushSetHandler($event, data) {
display(data);
$scope.$parent.$broadcast('LineChart:update');
}
}
};
}
function Scatter() {
return {
restrict: 'A',
require: '^lineChart',
link: function (scope, element, attrs, ctrl) {
var x, y, scatterElement, data;
init();
display();
scope.$on('LineChart:update', update);
function init() {
scatterElement = ctrl.getScatterElement();
x = ctrl.getX();
y = ctrl.getY();
}
function display() {
scatterElement.append("g")
.attr("class", "scatter")
.selectAll("circle")
.data(scope.data)
.enter().append("circle")
.attr("class", "dot")
.attr("cx", function(d) { return x(d.date); })
.attr("cy", function(d) { return y(d.rate); })
.attr("r", 3);
}
function update() {
init();
scatterElement.selectAll(".dot")
.transition().duration(500)
.attr("cx", function(d) { return x(d.date); })
.attr("cy", function(d) { return y(d.rate); });
}
}
};
}
function Ctrl($scope) {
$scope.$on('brush:changed', handleBrushedChanged);
prepareData();
function handleBrushedChanged($event, data) {
$scope.$broadcast('brush:set', data);
$event.stopPropagation();
}
// Computes some random data for visualization
// binds random data to scope, which is used by visualization
function prepareData() {
var wrapper = ["1-Jan-15","1-Dec-14","1-Nov-14","1-Oct-14","1-Sep-14","1-Aug-14","1-Jul-14","1-Jun-14","1-May-14","1-Apr-14","1-Mar-14","1-Feb-14","1-Jan-14","1-Dec-13","1-Nov-13","1-Oct-13","1-Sep-13","1-Aug-13","1-Jul-13","1-Jun-13","1-May-13","1-Apr-13","1-Mar-13","1-Feb-13","1-Jan-13","1-Dec-12","1-Nov-12","1-Oct-12","1-Sep-12","1-Aug-12","1-Jul-12","1-Jun-12"];
var dataWrapper = [];
for (var i = 2; i >= 0; i--) {
var data = [];
for (var j in wrapper) {
data.push({date: wrapper[j], rate: Math.floor(Math.random() * 200) + 50});
}
dataWrapper.push(data);
}
$scope.dataOne = dataWrapper[0];
$scope.dataTwo = dataWrapper[1];
}
}
</script>
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