forked from kosamari's block: D3.js Hanabi
Created
December 31, 2016 13:50
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D3.js Hanabi
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| license: mit |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <script src="http://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> | |
| <script> | |
| var width = 960, | |
| height = 500, | |
| color = d3.scale.ordinal().range(['#f7a91e', '#d9f71e']); | |
| rand = d3.random.normal(width/2,100), | |
| randomX = function(b){ return d3.random.normal(b, 80)()}, | |
| randomY = d3.random.normal(height/2, 80); | |
| 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"); | |
| function fireworks(){ | |
| var base = rand(); | |
| data = d3.range(100).map(function() { return {x: randomX(base), y: randomY()}; }); | |
| circles.transition().ease('circle').duration(1500).attr({cy:height/2}) | |
| 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> |
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