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Gooey Gif Art
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| license: gpl-3.0 |
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| <html> | |
| <head> | |
| <style> | |
| body { | |
| margin: 0; | |
| background: #3a403d; | |
| } | |
| .circle { | |
| fill: #fff; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <script> | |
| var r = 50, | |
| countingUp = -1, | |
| rot = 18.59, | |
| g = [], | |
| circle = []; | |
| var svg = d3.select("body").append("svg") | |
| .style("filter", "url(#gooey)"); | |
| var defs = svg.append("defs"); | |
| var filter = defs.append("filter").attr("id", "gooey"); | |
| filter.append("feGaussianBlur") | |
| .attr("in", "SourceGraphic") | |
| .attr("stdDeviation", "10") | |
| .attr("result", "blur"); | |
| filter.append("feColorMatrix") | |
| .attr("in", "blur") | |
| .attr("mode", "matrix") | |
| .attr("values", "1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 18 -7") | |
| .attr("result", "gooey"); | |
| filter.append("feComposite") | |
| .attr("in", "SourceGraphic") | |
| .attr("in2", "gooey") | |
| .attr("operator", "atop"); | |
| var width = window.innerWidth, height = window.innerHeight; | |
| svg | |
| .attr("width", width) | |
| .attr("height", height) | |
| var square = width > height ? height : width, | |
| translate = square == height ? "translate(" + (width - square) / 2 + ", 0)" : "translate(0, " + (height - square) / 2 + ")"; | |
| for (var i = 0; i <= 1; i++){ | |
| g[i] = svg.append("g") | |
| .attr("transform", translate) | |
| .attr("width", square) | |
| .attr("height", square); | |
| } | |
| draw(r); | |
| d3.timer(function(elapsed){ | |
| r += (1 * countingUp); | |
| if (r == 50 || r == 25) { | |
| countingUp *= -1; | |
| } | |
| draw(r); | |
| g[0].attr("transform", translate + " rotate(" + elapsed / rot + " " + square / 2 + " " + square / 2 + ")"); // rotate clockwise | |
| g[1].attr("transform", translate + " rotate(" + elapsed / -rot + " " + square / 2 + " " + square / 2 + ")"); // rotate counter-clockwise | |
| }); | |
| function draw(radius){ | |
| var locs = [ | |
| { | |
| x: square / 2, | |
| y: radius | |
| }, | |
| { | |
| x: square - radius, | |
| y: square / 2 | |
| }, | |
| { | |
| x: square / 2, | |
| y: square - radius | |
| }, | |
| { | |
| x: radius, | |
| y: square / 2 | |
| } | |
| ]; | |
| for (var i = 0; i < g.length; i++){ | |
| //JOIN | |
| circle[i] = g[i].selectAll(".circle") | |
| .data(locs); | |
| //EXIT | |
| circle[i].exit().remove(); | |
| //UPDATE | |
| circle[i] | |
| .attr("r", radius) | |
| .attr("cx", function(d){ return d.x; }) | |
| .attr("cy", function(d){ return d.y; }); | |
| //ENTER | |
| circle[i].enter().append("circle") | |
| .attr("class", "circle") | |
| .attr("r", radius) | |
| .attr("cx", function(d){ return d.x; }) | |
| .attr("cy", function(d){ return d.y; }); | |
| } | |
| } | |
| </script> | |
| </body> | |
| </html> |
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