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TA贡献1895条经验 获得超3个赞
我创建了一个动态创建圆圈的示例,其中文本居中。
https://codepen.io/mayconmesquita/pen/OJyRZxX
演示:
JS 代码: [已编辑 *]
var width = 600;
var height = 600;
// Place your JSON here.
var data = [
{ CategoryName: 'Adaptive Security', SkillProficiencyId: 1 },
{ CategoryName: 'Programmer', SkillProficiencyId: 2 },
{ CategoryName: 'Coffee Drinker', SkillProficiencyId: 3 }
];
/*
This 'cxBase' will be multiplied by element's index, and sum with offset.
So for 3 elements, cx = 0, 200, 400 ...
All these values changeable by this vars.
*/
const cxBase = 200;
const cxOffset = 100;
console.log(data);
// Make SVG container
var svgContainer = d3.select("body")
.append("svg")
.attr("width", width)
.attr("height", height);
// This function will iterate your data
data.map(function(props, index) {
var cx = cxBase * (index) + cxOffset; // Here CX is calculated
var elem = svgContainer.selectAll("div").data(data);
var elemEnter = elem.enter()
.append("g")
var circles = elemEnter.append("circle")
.attr("cx", cx)
.attr("cy", 100)
.attr("r", 80)
.style("fill", "blue");
elemEnter
.append("text")
.style("fill", "white")
.attr("dy", function(d){
return 105;
})
.attr("dx",function(d){
return cx - (props.CategoryName.length * 3.5);
})
.text(function (d) {
return props.CategoryName
});
});
编辑:
按照作者的要求,我确实改进了代码。现在圆的 cx 坐标是根据数组元素的索引动态计算的。
/*
This 'cxBase' will be multiplied by element's index, and sum with offset
So for 3 elements, cx = 0, 200, 400 ...
All these values changeable by this vars.
*/
const cxBase = 200;
const cxOffset = 100;
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