AI Researcher in Medicine.
All opinions are my own.
viewof chart = {
const width = 500;
const height = 500;
const svg = d3.create("div")
.attr('width', width)
.attr('height', height);
svg.call(
populationPrevalencePlot()
.width(width)
.height(height)
.prevalence(percentage)
.colorCase('purple')
.colorControl('lightgray')
.margin({top: 5, right: 5, bottom: 5, left: 5})
);
return svg.node();
}
populationPrevalencePlot = () => {
let width;
let height;
let prevalence;
let colorCase;
let colorControl;
let labelCase;
let labelControl;
let fontSize;
let margin;
const populationPrevalencePlot = (selection) => {
const gridSize = 10;
const legendWidth = width / 4.1667;
const plotWidth = width - legendWidth;
const cellSize = (plotWidth - margin.left - margin.right) / gridSize;
const legendRectSize = cellSize / 2;
const offset = 2
const legendOffset = 15;
const numColored = Math.floor(gridSize * gridSize * (prevalence / 100));
const fractionalPrevalence = gridSize * gridSize * (prevalence / 100) - numColored;
const personData = Array.from({length: gridSize * gridSize}, (_, i) => {
return {index: i, color: i < numColored ? colorCase : colorControl};
});
const personPath = 'm62.096 8.5859c-5.208 0-9.424 4.2191-9.424 9.4261 0.001 5.203 4.217 9.424 9.424 9.424 5.202 0 9.422-4.221 9.422-9.424 0-5.208-4.22-9.4261-9.422-9.4261zm-10.41 21.268c-6.672 0-12.131 5.407-12.131 12.07v29.23c0 2.275 1.791 4.123 4.07 4.123 2.28 0 4.127-1.846 4.127-4.123v-26.355h2.102s0.048 68.811 0.048 73.331c0 3.05 2.478 5.53 5.532 5.53 3.052 0 5.525-2.48 5.525-5.53v-42.581h2.27v42.581c0 3.05 2.473 5.53 5.531 5.53 3.054 0 5.549-2.48 5.549-5.53v-73.331h2.127v26.355c0 2.275 1.85 4.123 4.126 4.123 2.28 0 4.073-1.846 4.073-4.123v-29.23c0-6.663-5.463-12.07-12.129-12.07h-20.82z';
const svg = selection
.selectAll('svg#population-prevalence-plot')
.data([null])
.join('svg')
.attr('id', 'population-prevalence-plot')
.attr('width', width)
.attr('height', height)
.attr("viewBox",`0 0 ${width} ${plotWidth}`)
.attr('font-family', 'sans-serif');
svg
.selectAll('.population-border')
.data([null])
.join('rect')
.attr('class', 'population-border')
.attr('width', plotWidth)
.attr('height', plotWidth)
.attr('fill', 'none')
.attr('stroke', 'black')
.attr('stroke-width', 3)
.attr('transform', `translate(${offset}, ${offset})`);
let colorGradient = svg
.selectAll('defs')
.data([null])
.join('defs')
.append('linearGradient')
.attr('id', 'color-gradient-fraction')
.attr('x1', '0%')
.attr('y1', '0%')
.attr('x2', '100%')
.attr('y2', '0%');
colorGradient
.append('stop')
.attr('offset', '0%')
.attr('stop-color', colorCase);
colorGradient
.append('stop')
.attr('offset', `${fractionalPrevalence * 100}%`)
.attr('stop-color', colorCase);
colorGradient
.append('stop')
.attr('offset', `${fractionalPrevalence * 100}%`)
.attr('stop-color', colorControl);
colorGradient
.append('stop')
.attr('offset', '100%')
.attr('stop-color', colorControl);
const person = svg
.selectAll('g.person')
.data(personData);
const personEnter = person
.enter()
.append('g')
.attr('class', 'person');
const personUpdate = personEnter
.merge(person)
.attr('transform', (d, i) => `translate(${margin.left + (i % gridSize) * cellSize + offset}, ${margin.top + Math.floor(i / gridSize) * cellSize + offset}) scale(${cellSize / 124.19})`);
personUpdate
.selectAll('path')
.data(d => [d])
.join('path')
.attr('d', personPath)
.attr('fill', (d) => {
if (d.index === numColored && fractionalPrevalence > 0) {
return 'url(#color-gradient-fraction)';
}
return d.color;
});
person
.exit()
.remove();
const legend = svg
.selectAll('g.population-legend')
.data([null])
.join('g')
.attr('class', 'color-legend')
.attr('transform', `translate(${plotWidth + legendOffset}, ${margin.top + legendOffset})`);
legend
.selectAll('rect.population-legend-border')
.data([null])
.join('rect')
.attr('class', 'population-legend-border')
.attr('width', legendWidth - 20)
.attr('height', legendRectSize * 4)
.attr('fill', 'none')
.attr('stroke', 'black')
.attr('stroke-width', 2);
legend
.selectAll('rect.population-legend-case-color')
.data([null])
.join('rect')
.attr('class', 'population-legend-case-color')
.attr('x', legendRectSize / 2)
.attr('y', legendRectSize / 2)
.attr('width', legendRectSize)
.attr('height', legendRectSize)
.attr('fill', colorCase)
.attr('stroke', 'black')
.attr('stroke-width', 1);
legend
.selectAll('rect.population-legend-case-labal')
.data([null])
.join('text')
.attr('class', 'population-legend-case-labal')
.attr('x', legendRectSize * 2)
.attr('y', cellSize / 2)
.attr('dy', '.35em')
.text(labelCase ?? 'Case')
.style('font-size', `${fontSize ?? (legendRectSize / 1.25)}px`).style();
legend
.selectAll('rect.population-legend-control-color')
.data([null])
.join('rect')
.attr('class', 'population-legend-control-color')
.attr('x', legendRectSize / 2)
.attr('y', (legendRectSize * 4) / 2 + legendRectSize / 2)
.attr('width', legendRectSize)
.attr('height', legendRectSize)
.attr('fill', colorControl)
.attr('stroke', 'black')
.attr('stroke-width', 1);
legend
.selectAll('rect.population-legend-control-labal')
.data([null])
.join('text')
.attr('class', 'population-legend-control-labal')
.attr('x', legendRectSize * 2)
.attr('y', cellSize + cellSize / 2)
.attr('dy', '.35em')
.text(labelControl ?? 'Control')
.style('font-size', `${fontSize ?? (legendRectSize / 1.25)}px`);
};
populationPrevalencePlot.width = function (_) {
return arguments.length ? ((width = +_), populationPrevalencePlot) : width;
}
populationPrevalencePlot.height = function (_) {
return arguments.length ? ((height = +_), populationPrevalencePlot) : height;
}
populationPrevalencePlot.prevalence = function (_) {
return arguments.length ? ((prevalence = +_), populationPrevalencePlot) : prevalence;
}
populationPrevalencePlot.colorCase = function (_) {
return arguments.length ? ((colorCase = _), populationPrevalencePlot) : colorCase;
}
populationPrevalencePlot.colorControl = function (_) {
return arguments.length ? ((colorControl = _), populationPrevalencePlot) : colorControl;
}
populationPrevalencePlot.labelCase = function (_) {
return arguments.length ? ((labelCase = _), populationPrevalencePlot) : labelCase;
}
populationPrevalencePlot.labelControl = function (_) {
return arguments.length ? ((labelControl = _), populationPrevalencePlot) : labelControl;
}
populationPrevalencePlot.fontSize = function (_) {
return arguments.length ? ((fontSize = +_), populationPrevalencePlot) : fontSize;
}
populationPrevalencePlot.margin = function (_) {
return arguments.length ? ((margin = _), populationPrevalencePlot) : margin;
}
return populationPrevalencePlot;
}
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