copywriting
Marketing copy for homepages, landing pages, pricing pages, and other conversion-focused web pages.
d3-viz
Create interactive data visualizations using D3.js. Use this when creating charts, graphs, network diagrams, geographic visualizations, or custom SVG-based data visualization.
Full skill instructions
D3.js를 사용한 인터랙티브 데이터 시각화 가이드입니다.
적합한 경우:
대안 고려:
// npm
import * as d3 from 'd3';
// CDN
<script src="https://d3js.org/d3.v7.min.js"></script>
function drawVisualization(data) {
if (!data || data.length === 0) return;
const svg = d3.select('#chart');
svg.selectAll("*").remove(); // Clear previous
// 1. Dimensions
const width = 800;
const height = 400;
const margin = { top: 20, right: 30, bottom: 40, left: 50 };
const innerWidth = width - margin.left - margin.right;
const innerHeight = height - margin.top - margin.bottom;
// 2. Main group with margins
const g = svg.append("g")
.attr("transform", `translate(${margin.left},${margin.top})`);
// 3. Scales
const xScale = d3.scaleLinear()
.domain([0, d3.max(data, d => d.x)])
.range([0, innerWidth]);
const yScale = d3.scaleLinear()
.domain([0, d3.max(data, d => d.y)])
.range([innerHeight, 0]);
// 4. Axes
g.append("g")
.attr("transform", `translate(0,${innerHeight})`)
.call(d3.axisBottom(xScale));
g.append("g")
.call(d3.axisLeft(yScale));
// 5. Data binding
g.selectAll("circle")
.data(data)
.join("circle")
.attr("cx", d => xScale(d.x))
.attr("cy", d => yScale(d.y))
.attr("r", 5)
.attr("fill", "steelblue");
}
const xScale = d3.scaleBand()
.domain(data.map(d => d.category))
.range([0, innerWidth])
.padding(0.1);
g.selectAll("rect")
.data(data)
.join("rect")
.attr("x", d => xScale(d.category))
.attr("y", d => yScale(d.value))
.attr("width", xScale.bandwidth())
.attr("height", d => innerHeight - yScale(d.value))
.attr("fill", "steelblue");
const line = d3.line()
.x(d => xScale(d.date))
.y(d => yScale(d.value))
.curve(d3.curveMonotoneX);
g.append("path")
.datum(data)
.attr("fill", "none")
.attr("stroke", "steelblue")
.attr("stroke-width", 2)
.attr("d", line);
const pie = d3.pie().value(d => d.value);
const arc = d3.arc()
.innerRadius(0)
.outerRadius(Math.min(width, height) / 2 - 20);
g.selectAll("path")
.data(pie(data))
.join("path")
.attr("d", arc)
.attr("fill", (d, i) => d3.schemeCategory10[i]);
const tooltip = d3.select("body").append("div")
.attr("class", "tooltip")
.style("visibility", "hidden");
circles
.on("mouseover", (event, d) => {
tooltip.style("visibility", "visible")
.html(`Value: ${d.value}`);
})
.on("mousemove", (event) => {
tooltip
.style("top", (event.pageY - 10) + "px")
.style("left", (event.pageX + 10) + "px");
})
.on("mouseout", () => {
tooltip.style("visibility", "hidden");
});
const zoom = d3.zoom()
.scaleExtent([0.5, 10])
.on("zoom", (event) => {
g.attr("transform", event.transform);
});
svg.call(zoom);
// Basic
circles.transition()
.duration(750)
.attr("r", 10);
// Staggered
circles.transition()
.delay((d, i) => i * 50)
.duration(500)
.attr("cy", d => yScale(d.value));
| Scale Type | Use Case |
|---|---|
scaleLinear | 연속 수치 |
scaleLog | 지수 데이터 |
scaleTime | 시간/날짜 |
scaleBand | Bar chart 카테고리 |
scaleOrdinal | 색상 매핑 |
scaleSequential | 연속 색상 |
// Categorical
d3.schemeCategory10 // 10 colors
d3.schemeTableau10 // Tableau 10
// Sequential
d3.interpolateBlues
d3.interpolateYlOrRd
// Diverging
d3.interpolateRdBu
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