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Trying recreate this piece by Jean Pierre Yvaral that I saw at the Tate Modern, in London. I can't seem to find the specific piece online...
Part V of V
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December 1, 2017 20:50
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Yvaral V
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| license: mit |
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| </head> | |
| <style> | |
| body { | |
| background: #2f3337 !important; | |
| } | |
| </style> | |
| <body align="center"> | |
| <script> | |
| var colorScaleOne = d3.scalePow() | |
| .exponent(.8) | |
| .domain([0, 25]) | |
| .range(["#c9b9df", "#5e3f8d"]); | |
| var colorScaleTwo = d3.scalePow() | |
| .exponent(.8) | |
| .domain([0, 25]) | |
| .range(["#4d3d69", "#2f2541"]); | |
| var width = window.innerHeight*.98, | |
| height = window.innerHeight*.98, | |
| margin = {top: 0, bottom: 0, right: 0, left: 0} | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width + margin.left + margin.right) | |
| .attr("height", height + margin.top + margin.bottom) | |
| .append("g") | |
| .attr("transform", "translate(" + margin.left + "," + margin.top + ")") | |
| // Thanks https://bl.ocks.org/nbremer/e944485869ac8fd57413a158e9d8aae0 | |
| var defs = svg.append("defs"); | |
| //Create a radial Sun-like gradient | |
| defs.append("radialGradient") | |
| .attr("id", "sun-gradient") | |
| .attr("cx", "50%") //not really needed, since 50% is the default | |
| .attr("cy", "50%") //not really needed, since 50% is the default | |
| .attr("r", "50%") //not really needed, since 50% is the default | |
| .selectAll("stop") | |
| .data([ | |
| {offset: "0%", color: "#fb732d"}, | |
| {offset: "33%", color: "#fb222b"}, | |
| {offset: "95%", color: "#801116"}, | |
| {offset: "100%", color: "#2f3337"} | |
| ]) | |
| .enter().append("stop") | |
| .attr("offset", function(d) { return d.offset; }) | |
| .attr("stop-color", function(d) { return d.color; }); | |
| svg.append("circle") | |
| .attr("r", width/2) | |
| .attr("cx", width/2) | |
| .attr("cy", height/2) | |
| .style("fill", "url(#sun-gradient)"); | |
| var n = 6, | |
| quadrants = 4, | |
| rowHeight = height/2/n, | |
| cellWidth = width/2/n; | |
| // Lay out quandrants | |
| var quadrants = svg.selectAll(".quadrant") | |
| .data(d3.range(quadrants).map(Object)) | |
| .enter().append("g") | |
| .attr("class", "quadrant") | |
| .attr("transform", function(d, i) { | |
| if(i == 0) { | |
| return "translate(0,0)" | |
| } else if(i == 1) { | |
| return "translate(" + width/2 + ",0)" | |
| } else if(i == 2) { | |
| return "translate(0," + height/2 + ")" | |
| } else { | |
| return "translate(" + width/2 + "," + height/2 + ")" | |
| } | |
| }) | |
| // within each quadrant, there is a 6 by 6 | |
| var rows = quadrants.selectAll(".quadrant-row") | |
| .data(d3.range(n).map(Object)) | |
| .enter().append("g") | |
| .attr("class", "quadrant-row") | |
| .attr("transform", function(d, i) { return "translate(0," + rowHeight*i + ")" }) | |
| var cells = rows.selectAll(".cell") | |
| .data(d3.range(n).map(Object)) | |
| .enter().append("g") | |
| .attr("class", "cell") | |
| .attr("transform", function(d, i) { | |
| console.log(90*this.parentNode.parentNode.__data__.valueOf()); | |
| var quadrantValue = this.parentNode.parentNode.__data__.valueOf(); | |
| if(quadrantValue == 1) { | |
| return "translate(" + (cellWidth*i + cellWidth) + ",0) rotate(90)" | |
| } else if(quadrantValue == 2) { | |
| return "translate(" + (cellWidth*i) + "," + rowHeight + ") rotate(270)" | |
| } else if(quadrantValue == 3) { | |
| return "translate(" + (cellWidth*i + cellWidth) + "," + rowHeight + ") rotate(180)" | |
| } else { | |
| return "translate(" + cellWidth*i + ",0)" | |
| }}) | |
| // create clip paths for each | |
| var clipPath = cells.append("clipPath") | |
| .attr("id","rect-clip") | |
| .append("path") | |
| .attr("d", "M0,0L 0," + (rowHeight*1/2) + "L" + (cellWidth*1/2) + "," + (rowHeight*1/2) + "L" + (cellWidth*1/2) + "," + (rowHeight) + "L" + (cellWidth) + "," + (rowHeight) + "L" + (cellWidth) + ",0Z") | |
| var intervalI = 0 | |
| d3.interval(function() { | |
| if(intervalI % 2 == 0) { | |
| clipPath | |
| .transition() | |
| .duration(2500) | |
| .attrTween("d", pathTween("M0,0L 0," + rowHeight + "L" + cellWidth + "," + rowHeight + "L" + cellWidth + ",0Z", 4)) | |
| } else { | |
| clipPath | |
| .transition() | |
| .duration(2500) | |
| .attrTween("d", pathTween("M0,0L 0," + (rowHeight*1/2) + "L" + (cellWidth*1/2) + "," + (rowHeight*1/2) + "L" + (cellWidth*1/2) + "," + (rowHeight) + "L" + (cellWidth) + "," + (rowHeight) + "L" + (cellWidth) + ",0Z", 4)) | |
| } | |
| intervalI += 1; | |
| }, 3000); | |
| // Making first triangle | |
| cells.append("path") | |
| .attr("clip-path","url(#rect-clip)") | |
| .attr("d", "M0,0 L 0," + rowHeight + "L" + cellWidth + ",0Z") | |
| .style("fill", function(d, i) { | |
| var quadrantI = this.parentNode.parentNode.parentNode.__data__.valueOf() | |
| , rowI = this.parentNode.parentNode.__data__.valueOf() | |
| , cellI = this.parentNode.__data__.valueOf() | |
| , val; | |
| if(quadrantI == 3) { | |
| val = (5 - cellI) * (5-rowI); | |
| } else if (quadrantI == 2) { | |
| val = cellI * (5-rowI); | |
| } else if (quadrantI == 1) { | |
| val = (5 - cellI) * rowI; | |
| } else { | |
| val = cellI*rowI; | |
| } | |
| return (quadrantI == 0 || quadrantI == 3) ? colorScaleTwo(val) : colorScaleOne(val); | |
| }); | |
| // Make 2nd triangle | |
| cells.append("path") | |
| .attr("clip-path","url(#rect-clip)") | |
| .attr("d", "M0," + rowHeight + " L" + cellWidth + "," + rowHeight + "L" + cellWidth + ",0Z") | |
| .style("fill", function(d, i) { | |
| var quadrantI = this.parentNode.parentNode.parentNode.__data__.valueOf() | |
| , rowI = this.parentNode.parentNode.__data__.valueOf() | |
| , cellI = this.parentNode.__data__.valueOf() | |
| , val; | |
| if(quadrantI == 3) { | |
| val = (5 - cellI) * (5-rowI); | |
| } else if (quadrantI == 2) { | |
| val = cellI * (5-rowI); | |
| } else if (quadrantI == 1) { | |
| val = (5 - cellI) * rowI; | |
| } else { | |
| val = cellI*rowI; | |
| } | |
| return (quadrantI == 0 || quadrantI == 3) ? colorScaleOne(val) : colorScaleTwo(val); | |
| }); | |
| function pathTween(d1, precision) { | |
| return function() { | |
| var path0 = this, | |
| path1 = path0.cloneNode(), | |
| n0 = path0.getTotalLength(), | |
| n1 = (path1.setAttribute("d", d1), path1).getTotalLength(); | |
| // Uniform sampling of distance based on specified precision. | |
| var distances = [0], i = 0, dt = precision / Math.max(n0, n1); | |
| while ((i += dt) < 1) distances.push(i); | |
| distances.push(1); | |
| // Compute point-interpolators at each distance. | |
| var points = distances.map(function(t) { | |
| var p0 = path0.getPointAtLength(t * n0), | |
| p1 = path1.getPointAtLength(t * n1); | |
| return d3.interpolate([p0.x, p0.y], [p1.x, p1.y]); | |
| }); | |
| return function(t) { | |
| return t < 1 ? "M" + points.map(function(p) { return p(t); }).join("L") : d1; | |
| }; | |
| }; | |
| } | |
| </script> | |
| </body> | |
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