javascript - 在单个函数中获取基于单元的 JS 代码

Question

因此，对于一个项目，我试图让以下朝阳图的代码在单个函数中运行。换句话说：运行该函数将创建所提供数据的可缩放旭日形。但是，它是以某种基于单元格的方式编写的，我并不真正精通 Javascript。

代码摘自：https ://observablehq.com/@d3/zoomable-sunburst

我试图让它在我的webapp中运行，使用：

function updateSunburst(){
    var data = [data in the right format]
    
    
    function partition(d3) {
            const root = d3.hierarchy(data)
                .sum(d => d.value)
                .sort((a, b) => b.value - a.value);
            return d3.partition()
                .size([2 * Math.PI, root.height + 1]) 
            (root);
          }
    }

    function color(d3, data){
        return(d3.scaleOrdinal(d3.quantize(d3.interpolateRainbow, data.children.length + 1)))
    }

    function format(d3) {
        return(d3.format(",d"))
    }

    function width() {
        return(450)
    }
    var width = 450

    function radius() {
        return width / 6
    }
    
    function arc() {
        return(d3.arc()
                .startAngle(d => d.x0)
                .endAngle(d => d.x1)
                .padAngle(d => Math.min((d.x1 - d.x0) / 2, 0.005))
                .padRadius(radius * 1.5)
                .innerRadius(d => d.y0 * radius)
                .outerRadius(d => Math.max(d.y0 * radius, d.y1 * radius - 1))
        )
    }   

    const root = partition(data);

    root.each(d => d.current = d);

    const svg = d3.create("svg")
        .attr("viewBox", [0, 0, width, width])
        .style("font", "10px sans-serif");

    const g = svg.append("g")
        .attr("transform", `translate(${width / 2},${width / 2})`);

    const path = g.append("g")
        .selectAll("path")
        .data(root.descendants().slice(1))
        .join("path")
        .attr("fill", d => { while (d.depth > 1) d = d.parent; return color(d.data.name); })
        .attr("fill-opacity", d => arcVisible(d.current) ? (d.children ? 0.6 : 0.4) : 0)
        .attr("d", d => arc(d.current));

    path.filter(d => d.children)
        .style("cursor", "pointer")
        .on("click", clicked);

    path.append("title")
        .text(d => `${d.ancestors().map(d => d.data.name).reverse().join("/")}\n${format(d.value)}`);

    const label = g.append("g")
        .attr("pointer-events", "none")
        .attr("text-anchor", "middle")
        .style("user-select", "none")
        .selectAll("text")
        .data(root.descendants().slice(1))
        .join("text")
        .attr("dy", "0.35em")
        .attr("fill-opacity", d => +labelVisible(d.current))
        .attr("transform", d => labelTransform(d.current))
        .text(d => d.data.name);

    const parent = g.append("circle")
        .datum(root)
        .attr("r", radius)
        .attr("fill", "none")
        .attr("pointer-events", "all")
        .on("click", clicked);

    function clicked(event, p) {
        parent.datum(p.parent || root);

        root.each(d => d.target = {
        x0: Math.max(0, Math.min(1, (d.x0 - p.x0) / (p.x1 - p.x0))) * 2 * Math.PI,
        x1: Math.max(0, Math.min(1, (d.x1 - p.x0) / (p.x1 - p.x0))) * 2 * Math.PI,
        y0: Math.max(0, d.y0 - p.depth),
        y1: Math.max(0, d.y1 - p.depth)
        });

        const t = g.transition().duration(750);

        // Transition the data on all arcs, even the ones that aren’t visible,
        // so that if this transition is interrupted, entering arcs will start
        // the next transition from the desired position.
        path.transition(t)
            .tween("data", d => {
            const i = d3.interpolate(d.current, d.target);
            return t => d.current = i(t);
            })
        .filter(function(d) {
            return +this.getAttribute("fill-opacity") || arcVisible(d.target);
        })
            .attr("fill-opacity", d => arcVisible(d.target) ? (d.children ? 0.6 : 0.4) : 0)
            .attrTween("d", d => () => arc(d.current));

        label.filter(function(d) {
            return +this.getAttribute("fill-opacity") || labelVisible(d.target);
        }).transition(t)
            .attr("fill-opacity", d => +labelVisible(d.target))
            .attrTween("transform", d => () => labelTransform(d.current));
    }
    
    function arcVisible(d) {
        return d.y1 <= 3 && d.y0 >= 1 && d.x1 > d.x0;
    }

    function labelVisible(d) {
        return d.y1 <= 3 && d.y0 >= 1 && (d.y1 - d.y0) * (d.x1 - d.x0) > 0.03;
    }

    function labelTransform(d) {
        const x = (d.x0 + d.x1) / 2 * 180 / Math.PI;
        const y = (d.y0 + d.y1) / 2 * radius;
        return `rotate(${x - 90}) translate(${y},0) rotate(${x < 180 ? 0 : 180})`;
    }

    return svg.node();
}

问题是图表根本不会显示，并且我在日志中没有收到指向该文件的真正错误消息。还有什么我没看到的吗？

标签： javascriptd3.jsdata-visualizationsunburst-diagram