D3.js Hanabi

forked from kosamari's block: D3.js Hanabi

<!DOCTYPE html>
<html>
<head>
    <script src="https://d3js.org/d3.v3.min.js"></script>
    <meta charset="utf-8">
    <style>
        body {
            background: #222;
            color:#fff;
            font-family: "Helvetica Neue", Helvetica, sans-serif;
        }

#base, svg{
            position:absolute;
            left:0;
            top:0;
        }
        #base{
            width: 960px;
            height: 500px;
        }

#message {
            width: 500px;
            margin: 20px auto;
            font-weight: bold;
            font-size: 36px;
            padding-top:100px;
        }

#logo {
            width: 500px;
            margin: 20px auto;
            font-weight: bold;
            font-size: 72px;
            text-align: left;
            line-height: 68px;
            position: relative;
        }

#logo span {
            position: absolute;
            top: 7px;
            height: 72px;
            width: 72px;
            border-radius: 50%;
            line-height: 72px;
            font-size: 60px;
            text-align: center;
            background: #f7df1e;
            color: #222;
        }

#logo .j {
            right: 80px;
        }

#logo .s {
            right: 0;
        }

</style>
</head>
<body>
    <div id="base">
        <div id="message">Happy 1st Year Anniversary !</div>
        <div id="logo">
            Brooklyn
            <span class="j">J</span>
            <span class="s">S</span>
        </div>
    </div>

var svg = d3.select("body").append("svg")
                        .attr("width", width)
                        .attr("height", height);

var data = d3.range(100).map(function() { return {x: randomX(width/2), y: randomY()}; });

var circles = svg.selectAll("circle").data(data).enter()
                        .append("circle");

circles.data(data)
                .attr("opacity",1)
                .attr({r:3,cx:base,cy:height,fill:"gray"})
                .transition()
                    .ease('circle')
                    .duration(1500)
                    .attr({cy:height/2})
                .transition().delay(1400)
                    .ease("exp")
                    .duration(300)
                    .attr("cx", function(d){ return d.x; })
                    .attr("cy", function(d){ return d.y; })
                    .attr("r", 10)
                    .attr("opacity",1)
                    .attr("fill", function(d){ return color(d.x); })
                    .transition()
                    .ease("circle")
                    .duration(2000)
                    .attr("opacity",0)
                    .attr("cx", function(d){ if(d.x > base){
                        return d.x + (d.x-base)
                    }return d.x - (base - d.x)})
                    .attr("cy", function(d){ if(d.y > height/2){
                        return d.y + (d.y-height/2)
                    }return d.y - (height/2 - d.y)})
                    .attr("r", 0);

}
        setInterval(fireworks,4000);
    </script>
</body>
</html>

Modified http://d3js.org/d3.v3.min.js to a secure url

https://d3js.org/d3.v3.min.js