d3.js pie.padAngle()用法及代碼示例

D3.js 中的 pie.padAngle()函數用於設置連續弧之間的填充角度。當指定一個角度時，它將填充角度設置為給定的角度或函數並返回一個餅圖生成器。當未指定角度時，它返回當前填充角度訪問器，默認為無填充。

用法:

pie.padAngle( angle )

參數：該函數接受如上所述和以下描述的單個參數：

angle:它是一個數字或函數，以弧度指定焊盤角度。它是一個可選參數。

返回值：此函數不返回任何內容。

下麵給出了D3.js中pie.padAngle()函數的一些示例；

範例1：

HTML


<!DOCTYPE html>
<html>
<head>
    <script src="https://d3js.org/d3.v6.min.js">
    </script>
</head>
<body>
    <div style="width:300px; height:300px;">
        <center>
            <h1 style="color:green">
                GeeksforGeeks
            </h1>
            <h2>
                pie.padAngle()
            </h2>
        </center>
        <svg width="300" height="250">
        </svg>
    </div>
    <script>
        // Data to be added in the pie chart
        var data = [
            { "property":"p5", "value":19 },
            { "property":"p5", "value":12 },
            { "property":"p4", "value":11 },
            { "property":"p3", "value":10 },
            { "property":"p2", "value":9 },
        ]
        // Selecting SVG using d3.select()
        var svg = d3.select("svg");
        // Creating Pie generator
        var pie = d3.pie()
            .value((d) => { return d.value })
            // Use of pie.padAngle() Function
            .padAngle(0.5)
            (data);
        // Creating arc
        var arc = d3.arc()
            .innerRadius(0)
            .outerRadius(80);
        let g = svg.append("g")
            .attr("transform", "translate(150,120)");
        // Grouping different arcs
        var arcs = g.selectAll("arc")
            .data(pie)
            .enter()
            .append("g");
        // Appending path
        arcs.append("path")
            .attr("fill", (data, i) => {
                return d3.schemeSet3[i];
            })
            .attr("d", arc);
    </script>
</body>
</html>

輸出：

範例2：

HTML


<!DOCTYPE html>
<html>
<head>
    <script src="https://d3js.org/d3.v6.min.js">
    </script>
</head>
<body>
    <div style="width:300px; height:300px;">
        <center>
            <h1 style="color:green">
                GeeksforGeeks
            </h1>
            <h2>
                pie.padAngle()
            </h2>
        </center>
        <svg width="300" height="250">
        </svg>
    </div>
    <script>
        // Data to be added in the pie chart
        var data = [
            { "property":"p5", "value":19 },
            { "property":"p5", "value":12 },
            { "property":"p4", "value":11 },
            { "property":"p3", "value":10 },
            { "property":"p2", "value":9 },
        ]
        // Selecting SVG using d3.select()
        var svg = d3.select("svg");
        // Creating Pie generator
        var pie = d3.pie()
            .value((d) => { return d.value })
            // Use of pie.padAngle() Function
            .padAngle(0.1)
            (data);
        // Creating arc
        var arc = d3.arc()
            .innerRadius(40)
            .outerRadius(80);
        let g = svg.append("g")
            .attr("transform", "translate(150,120)");
        // Grouping different arcs
        var arcs = g.selectAll("arc")
            .data(pie)
            .enter()
            .append("g");
        // Appending path
        arcs.append("path")
            .attr("fill", (data, i) => {
                return d3.schemeSet3[i];
            })
            .attr("d", arc);
    </script>
</body>
</html>

輸出：

相關用法

注：本文由純淨天空篩選整理自tarun007大神的英文原創作品 D3.js pie.padAngle() Function。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。