柱状图 - 螺旋背景

描述:当前是关于Echarts图表中的 柱状图 示例。
 
            var names = [], values = [];
for (var a = 0; a < 10; a++) {
   names.push("数据" + a);
   values.push(Math.round(Math.random() * 100));
}

option = {
   grid: {
      top: 20,
      bottom: 40,
      left: 50,
      right: 30
   },
   xAxis: {
      position: 'bottom',
      type: 'category',
      axisLine: {
         show: false
      },
      axisTick: {
         show: false
      },
      axisLabel: {
         show: true,
         interval: 0,
         rotate: 0
      },
      splitLine: {
         show: false
      },
      gridIndex: 0,
      data: names
   },
   yAxis: {
      axisLine: {
         show: false
      },
      axisTick: {
         show: true
      },
      axisLabel: {
         show: true,
         rotate: 0
      },
      splitLine: {
         show: false
      }
   },
   series: [
      {
         // 背景柱状图
         type: 'bar',
         barWidth: '25',
         barGap: '-100%',
         animation: false,
         itemStyle: {
            normal: {
               borderWidth: 0,
               barBorderRadius: [4, 4, 0, 0],
               color: '#0d81d3'
            }
         },
         label: {
            show: true,
            position: 'top',
            // color: '#fff'
         },
         z: 0,
         data: values
      },
      {
         // 分隔
         type: 'pictorialBar',
         symbol: 'rect',
         symbolClip: true,
         symbolRotate: '-28',
         symbolRepeat: 'fixed',
         symbolPosition: 'start',
         symbolMargin: 3,
         symbolSize: [25, 4],
         symbolOffset: [0, 0],
         itemStyle: {
            normal: {
               color: '#3299e9',
            },
         },
         data: values
      }
   ]
};