百分比层叠柱状图（带图例）

效果

使用方法

<template>
    <div>
       <lt-canvas ref="canvas" :width="750" :height="500"></lt-canvas>       
    </div>
</template>
<script>
    import LightChart from 'light-chart';
    export default {
        components:{
            ltCanvas:require("light-chart/canvas")
        },
        data(){
            return {}
        },
        mounted(){
            const data =[
                { country: 'Europe', year: '1750', value: 163, percent: 0.24511278195488723 },
                { country: 'Asia', year: '1750', value: 502, percent: 0.7548872180451128 },
                { country: 'Europe', year: '1800', value: 203, percent: 0.24224343675417662 },
                { country: 'Asia', year: '1800', value: 635, percent: 0.7577565632458234 },
                { country: 'Europe', year: '1850', value: 276, percent: 0.2543778801843318 },
                { country: 'Asia', year: '1850', value: 809, percent: 0.7456221198156682 },
                { country: 'Europe', year: '1900', value: 408, percent: 0.3011070110701107 },
                { country: 'Asia', year: '1900', value: 947, percent: 0.6988929889298893 },
                { country: 'Europe', year: '1950', value: 547, percent: 0.2806567470497691 },
                { country: 'Asia', year: '1950', value: 1402, percent: 0.7193432529502309 },
                { country: 'Europe', year: '1999', value: 729, percent: 0.16708686683474674 },
                { country: 'Asia', year: '1999', value: 3634, percent: 0.8329131331652533 },
                { country: 'Europe', year: '2050', value: 628, percent: 0.10651289009497965 },
                { country: 'Asia', year: '2050', value: 5268, percent: 0.8934871099050203 },
                { country: 'Europe', year: '2100', value: 828, percent: 0.10227272727272728 },
                { country: 'Asia', year: '2100', value: 7268, percent: 0.8977272727272727 }
            ];
            let chart = new LightChart.Chart({
                ltCanvas:this.$refs.canvas
            });
            chart.source(data, {
                percent: {
                    min: 0,
                    formatter(val) {
                        return (val * 100).toFixed(0) + '%';
                    }
                }
            });
            
            chart.interval()
                .position('year*percent')
                .color('country')
                .adjust('stack');
            chart.render();
        }
    }
</script>