Drawing the Yin and Yang Symbol with D3.js
The JavaScript code below shows how you can draw the yin and yang symbol using D3.js. After setting the dimensions of the displayed elements and creating the SVG container, we create a clip path to define the visible and hidden portions of the large white circle. This clip path is referenced further below when drawing the large white circle. The rest of the code is drawing the smaller inner circles on top of each other, hence their order is important, to finish the picture.
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JavaScript Code
const radius = 300,
stroke = 5,
width = (radius + stroke) * 2,
svg = d3.select('#canvas').append('svg')
.attr('width', width)
.attr('height', width);
const g = svg.append('g')
.attr('transform', `translate(${stroke}, ${stroke})`);
g.append('clipPath').attr('id', 'clip').append('rect')
.attr('width', radius)
.attr('height', radius * 2);
// outline
g.append('circle')
.attr('cx', radius)
.attr('cy', radius)
.attr('r', radius)
.attr('stroke', 'black')
.attr('stroke-width', stroke);
// large white circle
g.append('circle')
.attr('cx', radius)
.attr('cy', radius)
.attr('r', radius)
.attr('fill', 'white')
.attr('clip-path', 'url(#clip)');
// inner black circle
g.append('circle')
.attr('cx', radius)
.attr('cy', radius * 1.5)
.attr('r', radius * 0.5);
// white seed
g.append('circle')
.attr('cx', radius)
.attr('cy', radius * 1.5)
.attr('r', radius * 0.15)
.attr('fill', 'white');
// inner white circle
g.append('circle')
.attr('cx', radius)
.attr('cy', radius * 0.5)
.attr('r', radius * 0.5)
.attr('fill', 'white');
// black seed
g.append('circle')
.attr('cx', radius)
.attr('cy', radius * 0.5)
.attr('r', radius * 0.15);
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This post was written by Ramiro Gómez (@yaph) and published on . Subscribe to the Geeksta RSS feed to be informed about new posts.
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