<template>
  <div ref="dom" style="width:800px ;height:300px;">
  </div>

</template>

<script>
import * as echarts from "echarts";


export default {
  name: "BarData",
  data() {
    return {
      a: [],
      b: []
    }
  },
  props: {
    resultXData: {},
    titleText: {
      type: String,
    }
  },
  mounted() {
    /*setTimeout(() => {
      this.getPie();
    }, 1000)*/
  },
  watch: {
    resultXData: {
      handler(newVal) {
        this.resultYData = newVal
        this.getPie()
      }

    },
  },
  methods: {
    getPie() {
      var _this = this

      // 绘制图表
      /* this.$nextTick(() => {*/
      var option = {
        title: {
          text: this.titleText,
          x: 'left',              //标题位置
          // textStyle: { //标题内容的样式
          //   color: '#000',
          //   fontStyle: 'normal',
          //   fontWeight: 100,
          //   fontSize: 16 //主题文字字体大小，默认为18px
          // },
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'shadow'
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            type: 'category',
            data: this.resultYData.name,
            axisTick: {
              alignWithLabel: true
            },
            axisLabel: {
              interval: 0,
              rotate: 20
            }
          }
        ],
        legend: {
          top: '5%', // 控制 板块控制器的位置
          right: 'center',
          // icon: 'rect',//形状  类型包括 circle，rect,line，roundRect，triangle，diamond，pin，arrow，none
          // itemWidth: 10,  // 设置宽度
          // itemHeight: 4, // 设置高度
          itemGap: 40, // 设置两个legend之间的间距
        },
        yAxis: [
          {
            type: 'log',
            min: 1,
            name: "单位（亩）",
            splitLine: {
              lineStyle: {
                type: 'dashed',
              },
            },
            axisLabel: {
              formatter: function (value) {
                return value === 1 ? 0 : value;//第2步，将y轴最小值1变成从0开始；
              }
            },
          }
        ],
        series: [
          {
            name: '实际占用土地面积',
            type: 'bar',
            barWidth: 15,
            symbolSize: 8,
            label: {
              show: true,
              position: 'top',
            },
            data: this.resultYData.value,
            itemStyle: {
              normal: {
                barBorderRadius: [5, 5, 0, 0],
                color: new echarts.graphic.LinearGradient(
                  0, 0, 0, 1, [{
                    offset: 0,
                    color: '#00C0FA'
                  },
                    {
                      offset: 1,
                      color: '#c631ef'
                    }
                  ]
                )
              }
            }
          },
          {
            name: '闲置低效土地面积',
            type: 'bar',
            symbolSize: 8,
            barWidth: 15,
            label: {
              show: true,
              position: 'top',
            },
            data: this.resultYData.value2,
            itemStyle: {
              normal: {
                barBorderRadius: [5, 5, 0, 0],
                color: new echarts.graphic.LinearGradient(
                  0, 0, 0, 1, [{
                    offset: 0,
                    color: '#eecc49'
                  },
                    {
                      offset: 1,
                      color: '#42cb7d'
                    }
                  ]
                )
              }
            }
          }
        ]

      }

      // 使用刚指定的配置项和数据显示图表。
      var myChart = echarts.init(this.$refs.dom)
      myChart.on('click', (params) => {
        _this.$emit('visible', {xzqh: params.name,sfsb:"3"});
      })
      myChart.setOption(option)
      /*window.addEventListener("resize", myChart.resize);*/

      //  })

    }
  },

}
</script>

<style scoped>

</style>