d3.js pie.padAngle()用法及代码示例

D3.js 中的 pie.padAngle()函数用于设置连续弧之间的填充角度。当指定一个角度时，它将填充角度设置为给定的角度或函数并返回一个饼图生成器。当未指定角度时，它返回当前填充角度访问器，默认为无填充。

用法:

pie.padAngle( angle )

参数：该函数接受如上所述和以下描述的单个参数：

angle:它是一个数字或函数，以弧度指定焊盘角度。它是一个可选参数。

返回值：此函数不返回任何内容。

下面给出了D3.js中pie.padAngle()函数的一些示例；

范例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>

输出：

范例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>

输出：

相关用法

注：本文由纯净天空筛选整理自tarun007大神的英文原创作品 D3.js pie.padAngle() Function。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。