Echarts柱状图实现渐变与圆角效果详解

series: [{
    data: data,
    type: 'bar',
    barWidth: '40%',
    itemStyle: {
        normal: {
            //这里设置柱形图圆角 [左上角，右上角，右下角，左下角]
            barBorderRadius:[5, 5, 0, 0],
            color: new echarts.graphic.LinearGradient(
                0, 1, 0, 0, [{//只要修改前四个参数就ok
                        offset: 0,
                        color: '#c6e6ca'
                    }, //柱图渐变色
                    {
                        offset: 1,
                        color: '#45ac53'
                    }
                ]
            ),
        },            
    },
}]

series: [
    {
        name: '数量',
        type: 'bar',
        data: barData,
        barWidth: 14,
        itemStyle: {
            emphasis: {
                barBorderRadius: 7
            },
            normal: {
                barBorderRadius: 7
            }
        }
    }
]

itemStyle: {
    emphasis: {
        barBorderRadius: 7
    },
    normal: {
        barBorderRadius: 7,
        color: new echarts.graphic.LinearGradient(
            0, 0, 1, 0,
            [
                {offset: 0, color: '#3977E6'},
                {offset: 1, color: '#37BBF8'}

            ]
        )
    }
}

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="ECharts">
<title>Echarts绘制横向柱状图(圆角+渐变)</title>
<script src="https://cdn.bootcss.com/echarts/3.5.4/echarts.min.js"></script>
</head>
<body>
<div id="main" style="width: 1000px;height:400px;"></div>
<script type="text/javascript">
     var myChart = echarts.init(document.getElementById('main'));
 
    //初始化数据
    var category = ['小王', '小李', '小赵', '小马', '小刘', '小张', '小齐'];
    var barData = [3100, 2142, 1218, 581, 431, 383, 163];
 
    var option = {
        tooltip: {
            trigger: 'axis',
            axisPointer: {
                type: 'shadow'
            }
        },
        grid: {
            left: '3%',
            right: '4%',
            bottom: '3%',
            containLabel: true
        },
        xAxis: {
            type: 'value',
            axisLine: {
                show: false
            },
            axisTick: {
                show: false
            }
        },
        yAxis: {
            type: 'category',
            data: category,
            splitLine: {show: false},
            axisLine: {
                show: false
            },
            axisTick: {
                show: false
            },
            offset: 10,
            nameTextStyle: {
                fontSize: 15
            }
        },
        series: [
            {
                name: '数量',
                type: 'bar',
                data: barData,
                barWidth: 14,
                barGap: 10,
                smooth: true,
                label: {
                    normal: {
                        show: true,
                        position: 'right',
                        offset: [5, -2],
                        textStyle: {
                            color: '#F68300',
                            fontSize: 13
                        }
                    }
                },
                itemStyle: {
                    emphasis: {
                        barBorderRadius: 7
                    },
                    normal: {
                        barBorderRadius: 7,
                        color: new echarts.graphic.LinearGradient(
                            0, 0, 1, 0,
                            [
                                {offset: 0, color: '#3977E6'},
                                {offset: 1, color: '#37BBF8'}
 
                            ]
                        )
                    }
                }
            }
        ]
    };
    myChart.setOption(option);
</script>
</body>
</html>