29:null 2a:["$","title",null,{"children":"HW4 Strong | 北科大-王俞喬's Workspace | Observable"}] 2f:Tbb9,createSVG = { // 定義邊界大小，以及圖形的寬度和高度 const margin = { top: 20, right: 30, bottom: 30, left: 40 }; const width = 500 - margin.left - margin.right; const height = 400 - margin.top - margin.bottom; // X 軸的比例尺 const xScale = d3 .scaleLinear() .domain([0, d3.max(finalData, (d) => +d.x) ]) // 根據 x 的值設定範圍 .range([0, width]); // Y 軸的比例尺 const yScale = d3 .scaleLinear() .domain([0, d3.max(finalData, (d) => +d.y) ]) // 根據 y 的值設定範圍 .range([height, 0]); // 創建 SVG 元素 const svg = d3.create("svg") .attr("width", width + margin.left + margin.right) .attr("height", height + margin.top + margin.bottom + 20); // 在 SVG 中添加一個包含所有內容的 g 元素 const g = svg.append("g").attr("transform", `translate(${margin.left},${margin.top})`); // 定義半徑的比例尺 const radiusScale = d3 .scaleLinear() .domain([1, 10, 20, 30, 40, 50, 51]) // 根據 count 的區間設定 .range([2, 4, 6, 8, 10, 12, 14]); // 對應的半徑值 // 繪製點 g.selectAll("circle") .data(finalData) .enter() .append("circle") .attr("cx", (d) => xScale(+d.x)) .attr("cy", (d) => yScale(+d.y)) .attr("r", (d) => radiusScale(d.count)) .attr("fill", "#E98B2A") .on("mouseover", (event, d) => { // 添加滑鼠移入事件 const tooltip = d3.select("#tooltip") .style("display", "block") .style("left", (event.pageX + 10) + "px") .style("top", (event.pageY - 25) + "px"); tooltip.html(`X: ${d.x}
Y: ${d.y}
Count: ${d.count}`); // 在 tooltip 中顯示更多資訊 }) .on("mouseout", () => { // 添加滑鼠移出事件 d3.select("#tooltip").style("display", "none"); }) .append("title") .text((d) => `Count: ${d.count}`); // 創建 tooltip 元素 const tooltipDiv = d3.select("body") .append("div") .attr("id", "tooltip") .style("display", "none") .style("position", "absolute") .style("background-color", "white") .style("padding", "5px") .style("border", "1px solid #ddd") .style("border-radius", "3px") .style("pointer-events", "none"); // 避免 tooltip 影響滑鼠事件 // X 軸 g.append("g") .attr("transform", `translate(0, ${height})`) .call(d3.axisBottom(xScale).ticks(5)); // 設定刻度數量 // X 軸標籤 g.append("text") .attr("transform", `translate(${width / 2}, ${height + margin.top + 20})`) .style("text-anchor", "middle") .text("從1到5級距，您認為藝術產業的碳排放量在那個相對位置？"); // Y 軸 g.append("g").call(d3.axisLeft(yScale).ticks(5)); // 設定刻度數量 // Y 軸標籤 g.append("text") .attr("transform", "rotate(-90)") .attr("y", -margin.left) .attr("x", -height / 2) .attr("dy", "1em") .style("text-anchor", "middle") .text("您認為藝術跟台灣 2050 淨零排放政策的相關度為何？"); 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結論

從上圖中，我們可以看出：\n
\n
大多數人都覺得藝術產業跟政策並沒有太大的關聯性
\n
大多數人都認為藝術產業排放量高且跟政策無關，覺得跟政策相關的人也認為排放量低，我覺得了解政策的人也相對了解真正的碳排放量。
\n
\n

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