问题描述
因此,对于一个项目,我试图让旭日形图的以下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。然而,它是用某种基于单元格的方式编写的,我并不精通 Javascript。
代码摘自:https://observablehq.com/@d3/zoomable-sunburst
我正在尝试使用以下方法让它在我的 web 应用程序中运行:
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,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,(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,而且我在日志中没有收到指向该文件的真正错误消息。还有什么我没有看到的吗?
解决方法
暂无找到可以解决该程序问题的有效方法,小编努力寻找整理中!
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