Dot tile v4 / Sundar Singh

Sundar Singh

playing with space, shape, colour & composition

Workspace

Public

d3 reusable visuals

Edited

Sep 5, 2023

Fork of Dot tile v2

2 stars

function dotTileV4 (data, {

title = null,

threshold = null, // pass in threshold to display

w = 500,

h = 90,

radius = 6,

margin = {left: 300, top: 30, right: 50, bottom: 10},

xDomain = [0, 100], // null to calculate on min/max

bgdCol = '#f1f2f0',

lineCol = '#bfbabe',

circleFill = '#37bbe4',

thresholdCol = '#08327d',

circleTextFill = bgdCol,

titleCol = '#555', // main title e.g. 'Engagement'

subTitleCol = '#bfbabe', // sub-titles e.g. 2022

} = {}) {

const min = (xDomain) ? xDomain[0] : d3.min(data, d => d.value);

const max = (xDomain) ? xDomain[1] : d3.max(data, d => d.value);

const yScale = d3.scaleLinear()

.domain([0, data.length])

.range([margin.top, h]);

const xScale = d3.scaleLinear()

.domain([min, max])

.range([0, w - (margin.left + margin.right)]);

const svg = DOM.svg(w, h);

const sel = d3.select(svg);

sel.append('rect')

.attr('width', w)

.attr('height', h)

.attr('rx', 10)

.attr('fill', bgdCol);

// append the title

sel.append('text')

.attr('class', 'title')

.attr('y', margin.top + 5)

.attr('x', margin.left -50)

.attr('text-anchor', 'end')

.style('font-size', '13px')

.style('fill', titleCol)

.style('line-height', '160%')

.text(title);

sel.select('text.title')

.each(function(d, i) { wrap_text(d3.select(this), (margin.left * 0.5), 1.4) });

// group for each segment

const join = sel.selectAll('g')

.data(data)

.join('g').append('g')

.attr('transform', (d, i) => {

return `translate(${margin.left}, ${yScale(i)})`

});

// lines for each row

join.append('line')

.attr('x1', 0)

.attr('y1', 0)

.attr('x2', w - (margin.left + margin.right))

.attr('y2', 0)

.attr('stroke', lineCol)

.attr('stroke-dasharray', 2);

if (threshold) {

// threshold line vertical

join.append('line')

.attr('x1', d => xScale(threshold))

.attr('x2', d => xScale(threshold))

.attr('y1', -10)

.attr('y2', 10)

.attr('stroke', thresholdCol)

.attr('stroke-width', 2)

.attr('stroke-dasharray', 3);

// show threshold value

sel.append('text')

.attr('text-anchor', 'middle')

.style('font-size', '11px')

.attr('y', 13)

.attr('x', d => xScale(threshold) + margin.left)

.style('fill', thresholdCol)

.text(d => `${threshold}%`);

}

join.append('circle')

.attr('fill', circleFill)

.attr('r', radius)

.attr('cx', d => xScale(d.value))

.style('opacity', 0.9);

// show pct

join.append('text')

.attr('text-anchor', 'right')

.style('font-size', '11px')

.attr('dy', 3)

.attr('x', w - (margin.left + margin.right))

.attr('dx', 8)

.text((d, i) => (i === 0) ? `${d.value}%` : d.value); // show % on first value only

// show date/cat

join.append('text')

.attr('text-anchor', 'right')

.style('font-size', '11px')

.attr('dy', 3)

.attr('x', -35)

.style('fill', subTitleCol)

.text(d => d.label);

return svg;

}

data = { return {

label: 'Q1: Sample survey question which needs to be compared to previous years and threshold',

threshold: 60,

data: [

{

label: '2022',

value: 62.6,

count: 4311

{

label: '2021',

value: 14.6,

{

label: '2020',

value: 66.4

}

]

}

};

measure_width = {

const context = document.createElement("canvas").getContext("2d");

return text => context.measureText(text).width;

}

<hr>

<style>

text {

font-family:'Space Mono',monospace;

fill: #130C0E;

}

</style>

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