From 0482aebb127960bda0dc97686d2efd543cc265d4 Mon Sep 17 00:00:00 2001
From: Xu Zhimeng <xuzhimeng@qq.com>
Date: Thu, 6 Jul 2023 19:40:48 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20=E5=A2=9E=E5=8A=A0=E5=90=84=E5=9B=BE?=
 =?UTF-8?q?=E8=A1=A8=E4=B9=8B=E9=97=B4=E7=9A=84=E8=81=94=E5=8A=A8?=
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Content-Transfer-Encoding: 8bit

---
 src/components/CustomChart/index.vue          |  34 ++--
 .../spectrumAnalysis/beta-gamma-analysis.vue  |  53 +++++-
 .../components/BetaGammaSpectrumChart.vue     |  93 +++++++++-
 .../components/SpectrumLineChart.vue          | 174 +++++++++++++-----
 4 files changed, 291 insertions(+), 63 deletions(-)

diff --git a/src/components/CustomChart/index.vue b/src/components/CustomChart/index.vue
index d12f248..a785e99 100644
--- a/src/components/CustomChart/index.vue
+++ b/src/components/CustomChart/index.vue
@@ -3,6 +3,10 @@
 </template>
 <script>
 import * as echarts from 'echarts'
+
+const events = ['brushEnd']
+const zrEvents = ['mousemove', 'mousedown', 'mouseup']
+
 export default {
   props: {
     option: {
@@ -18,43 +22,51 @@ export default {
     return {}
   },
   mounted() {
-    this.chart = echarts.init(this.$refs.containerRef)
-    this.chart.setOption(this.option)
+    this._chart = echarts.init(this.$refs.containerRef)
+    this._chart.setOption(this.option)
     this.initEventListener()
   },
   methods: {
     initEventListener() {
+      events.forEach(eventName => {
+        this._chart.on(eventName, (params) => {
+          this.$emit(eventName, params)
+        })
+      })
+
       const zr = this.getZRender()
-      zr.on('mousemove', (params) => {
-        this.$emit('zr:mousemove', params)
+      zrEvents.forEach(eventName => {
+        zr.on(eventName, params => {
+          this.$emit(`zr:${eventName}`, params)
+        })
       })
     },
 
     resize() {
-      this.chart && this.chart.resize()
+      this._chart && this._chart.resize()
     },
 
     // 获取echart实例
     getChartInstance() {
-      return this.chart
+      return this._chart
     },
 
     getZRender() {
-      return this.chart.getZr()
+      return this._chart.getZr()
     }
   },
-  watch : {
+  watch: {
     option: {
       handler() {
-        if(this.chart) {
-          this.chart.setOption(this.option)
+        if (this._chart) {
+          this._chart.setOption(this.option)
         }
       },
       deep: true
     },
     height() {
       this.$nextTick(() => {
-        this.chart && this.chart.resize()
+        this._chart && this._chart.resize()
       })
     }
   }
diff --git a/src/views/spectrumAnalysis/beta-gamma-analysis.vue b/src/views/spectrumAnalysis/beta-gamma-analysis.vue
index e80ab8d..34a5ceb 100644
--- a/src/views/spectrumAnalysis/beta-gamma-analysis.vue
+++ b/src/views/spectrumAnalysis/beta-gamma-analysis.vue
@@ -5,7 +5,12 @@
         <template slot="title">
           Beta-Gamma Spectrum: Sample
         </template>
-        <beta-gamma-spectrum-chart ref="betaGammaChartRef" :data="twoDData" @positionChange="handlePositionChange" />
+        <beta-gamma-spectrum-chart
+          ref="betaGammaChartRef"
+          :data="twoDData"
+          @positionChange="handlePositionChange"
+          @rangeChange="handleRangeChange"
+        />
       </beta-gamma-chart-container>
     </div>
     <div class="beta-and-gamma-spectrum">
@@ -16,7 +21,7 @@
               <template slot="title">
                 Gamma Spectrum: Original
               </template>
-              <spectrum-line-chart ref="lineChart1Ref" />
+              <spectrum-line-chart ref="lineChart1Ref" @rangeChange="handleLineChartRangeChange($event, 'y')" />
             </beta-gamma-chart-container>
           </div>
           <div class="gamma-spectrum-item">
@@ -24,7 +29,7 @@
               <template slot="title">
                 Gamma Spectrum: Projected
               </template>
-              <spectrum-line-chart ref="lineChart2Ref" />
+              <spectrum-line-chart ref="lineChart2Ref" @rangeChange="handleLineChartRangeChange($event, 'y')" />
             </beta-gamma-chart-container>
           </div>
         </div>
@@ -34,7 +39,12 @@
               <template slot="title">
                 Beta Spectrum: Original
               </template>
-              <spectrum-line-chart ref="lineChart3Ref" title="Beta" color="#00ff1e" />
+              <spectrum-line-chart
+                ref="lineChart3Ref"
+                title="Beta"
+                color="#00ff1e"
+                @rangeChange="handleLineChartRangeChange($event, 'x')"
+              />
             </beta-gamma-chart-container>
           </div>
           <div class="gamma-spectrum-item">
@@ -42,7 +52,12 @@
               <template slot="title">
                 Beta Spectrum: Projected
               </template>
-              <spectrum-line-chart ref="lineChart4Ref" title="Beta" color="#00ff1e" />
+              <spectrum-line-chart
+                ref="lineChart4Ref"
+                title="Beta"
+                color="#00ff1e"
+                @rangeChange="handleLineChartRangeChange($event, 'x')"
+              />
             </beta-gamma-chart-container>
           </div>
         </div>
@@ -142,6 +157,34 @@ export default {
       // Beta Spectrum，根据bata-gamma的bata channel的值（x轴）进行定位
       this.$refs.lineChart3Ref.setLinePosition(xAxis)
       this.$refs.lineChart4Ref.setLinePosition(xAxis)
+    },
+
+    // 鼠标在左侧2d图表上刷选时
+    handleRangeChange([x1, x2, y1, y2]) {
+      this.$refs.lineChart1Ref.setRange(y1, y2)
+      this.$refs.lineChart2Ref.setRange(y1, y2)
+
+      this.$refs.lineChart3Ref.setRange(x1, x2)
+      this.$refs.lineChart4Ref.setRange(x1, x2)
+    },
+
+    /**
+     * 右侧折线图表刷选时
+     * @param {number[]} range 范围
+     * @param {'x'|'y'} type 类型
+     **/
+
+    handleLineChartRangeChange([x1, x2], type) {
+      if (type == 'y') {
+        // 如果是gamma channel变化
+        this.$refs.lineChart1Ref.setRange(x1, x2)
+        this.$refs.lineChart2Ref.setRange(x1, x2)
+      } else if (type == 'x') {
+        this.$refs.lineChart3Ref.setRange(x1, x2)
+        this.$refs.lineChart4Ref.setRange(x1, x2)
+      }
+
+      this.$refs.betaGammaChartRef.setRange(x1, x2, type)
     }
   }
 }
diff --git a/src/views/spectrumAnalysis/components/BetaGammaSpectrumChart.vue b/src/views/spectrumAnalysis/components/BetaGammaSpectrumChart.vue
index d5af401..7386722 100644
--- a/src/views/spectrumAnalysis/components/BetaGammaSpectrumChart.vue
+++ b/src/views/spectrumAnalysis/components/BetaGammaSpectrumChart.vue
@@ -13,8 +13,14 @@
     </div>
     <div class="beta-gamma-spectrum-chart-main">
       <!-- 2D 图表 -->
-      <div class="_2d-chart" v-if="active == 0">
-        <custom-chart ref="chartRef" :option="twoDOption" @zr:mousemove="handleMouseMove" />
+      <div class="_2d-chart" v-show="active == 0">
+        <custom-chart
+          ref="chartRef"
+          :option="twoDOption"
+          @zr:mousemove="handleMouseMove"
+          @zr:mousedown="handleMouseDown"
+          @brushEnd="handleBrushEnd"
+        />
         <div class="bar">
           <color-palette v-model="currCount" :maxValue="4" />
           <div>{{ currCount + 1 }}</div>
@@ -123,7 +129,8 @@ const twoDOption = {
     itemStyle: {
       color: '#fff'
     }
-  }
+  },
+  brush: {}
 }
 
 //3D Surface 配置
@@ -284,6 +291,10 @@ export default {
     }
   },
 
+  mounted() {
+    this.twoDOption.brush = { toolbox: [] }
+  },
+
   methods: {
     // 点击改变Beta-Gamma Spectrum: Sample图表类型
     handleChange(index) {
@@ -292,7 +303,12 @@ export default {
 
     // 点击unzoom
     handleUnzoom() {
-      console.log('%c [ handleUnzoom ]-309', 'font-size:13px; background:pink; color:#bf2c9f;')
+      this.twoDOption.xAxis.min = 0
+      this.twoDOption.xAxis.max = 256
+      this.twoDOption.yAxis.min = 0
+      this.twoDOption.yAxis.max = 256
+
+      this.emitRangeChange([0, 256, 0, 256])
     },
 
     resize() {
@@ -301,12 +317,81 @@ export default {
       this.$refs._3dScannerRef && this.$refs._3dScannerRef.resize()
     },
 
+    // 鼠标在图表上移动时
     handleMouseMove(param) {
       const { offsetX, offsetY } = param
       const point = getXAxisAndYAxisByPosition(this.$refs.chartRef.getChartInstance(), offsetX, offsetY)
       this.$emit('positionChange', point ? [point[0].toFixed(), point[1].toFixed()] : [null, null])
     },
 
+    // 鼠标按下时开启可刷选状态
+    handleMouseDown() {
+      const chart = this.$refs.chartRef.getChartInstance()
+      chart.dispatchAction({
+        type: 'takeGlobalCursor',
+        // 如果想变为“可刷选状态”，必须设置。不设置则会关闭“可刷选状态”。
+        key: 'brush',
+        brushOption: {
+          // 参见 brush 组件的 brushType。如果设置为 false 则关闭“可刷选状态”。
+          brushType: 'rect'
+        }
+      })
+    },
+
+    // 刷选完毕时
+    handleBrushEnd(param) {
+      const chart = this.$refs.chartRef.getChartInstance()
+      const areas = param.areas[0]
+      if (areas) {
+        const range = areas.range
+        const [[minX, maxX], [minY, maxY]] = range
+
+        const point1 = chart.convertFromPixel({ seriesIndex: 0 }, [minX, minY]).map(num => parseInt(num.toFixed()))
+        const point2 = chart.convertFromPixel({ seriesIndex: 0 }, [maxX, maxY]).map(num => parseInt(num.toFixed()))
+
+        const [x1, y2, x2, y1] = [...point1, ...point2] // 根据解析出的数据确定真实的范围
+
+        this.twoDOption.xAxis.min = x1
+        this.twoDOption.xAxis.max = x2
+        this.twoDOption.yAxis.min = y1
+        this.twoDOption.yAxis.max = y2
+
+        this.emitRangeChange([x1, x2, y1, y2])
+      }
+
+      // 清理刷选的范围
+      chart.dispatchAction({
+        type: 'brush',
+        areas: []
+      })
+
+      // 改为不可刷选状态
+      chart.dispatchAction({
+        type: 'takeGlobalCursor'
+      })
+    },
+
+    // 通知上层范围改变
+    emitRangeChange(range) {
+      this.$emit('rangeChange', range)
+    },
+
+    /**
+     * 设置范围
+     * @param {number} x1
+     * @param {number} x2
+     * @param {'x' | 'y'} type 要改变哪条轴
+     */
+    setRange(x1, x2, type) {
+      if (type == 'x') {
+        this.twoDOption.xAxis.min = x1
+        this.twoDOption.xAxis.max = x2
+      } else if (type == 'y') {
+        this.twoDOption.yAxis.min = x1
+        this.twoDOption.yAxis.max = x2
+      }
+    },
+
     // 颜色插值
     interpolateColor(color1, color2, percentage) {
       const r = color1.r + (color2.r - color1.r) * percentage
diff --git a/src/views/spectrumAnalysis/components/SpectrumLineChart.vue b/src/views/spectrumAnalysis/components/SpectrumLineChart.vue
index 1306411..33d0f2b 100644
--- a/src/views/spectrumAnalysis/components/SpectrumLineChart.vue
+++ b/src/views/spectrumAnalysis/components/SpectrumLineChart.vue
@@ -1,13 +1,25 @@
 <template>
   <div class="spectrum-line-chart">
-    <div class="title">{{ title + ' Count' }}</div>
-    <custom-chart
-      class="spectrum-line-chart-main"
-      ref="chartRef"
-      :option="option"
-      style="height: 100%"
-      @zr:mousemove="handleMouseMove"
-    ></custom-chart>
+    <div class="calculation">
+      <span>Channel: 136</span>
+      <span>Count: 1475</span>
+      <span class="error">Energy: 381.409</span>
+    </div>
+    <div class="chart-container">
+      <div class="left-title">{{ title + ' Count' }}</div>
+      <custom-chart
+        class="spectrum-line-chart-main"
+        ref="chartRef"
+        :option="option"
+        style="height: 100%"
+        @zr:mousemove="handleMouseMove"
+        @zr:mousedown="handleMouseDown"
+        @brushEnd="handleBrushEnd"
+      ></custom-chart>
+    </div>
+    <div class="bottom-title">
+      {{ title + ' Channel' }}
+    </div>
   </div>
 </template>
 
@@ -18,26 +30,9 @@ import { getXAxisAndYAxisByPosition } from '@/utils/chartHelper.js'
 
 const initialOption = {
   grid: {
-    top: 25,
-    right: 12,
-    bottom: 40
-  },
-  title: {
-    text: '',
-    left: 'right',
-    top: 0,
-    textStyle: {
-      color: '#ade6ee',
-      fontSize: 12,
-      rich: {
-        a: {
-          padding: [0, 27, 0, 0]
-        },
-        b: {
-          color: '#ff5656'
-        }
-      }
-    }
+    top: 10,
+    right: 15,
+    bottom: 20
   },
   xAxis: {
     min: 0,
@@ -83,6 +78,9 @@ const initialOption = {
         color: 'rgba(119, 181, 213, .2)'
       }
     },
+    axisTick: {
+      show: false
+    },
     axisLabel: {
       color: '#ade6ee'
     }
@@ -112,7 +110,8 @@ const initialOption = {
       silent: true,
       data: []
     }
-  }
+  },
+  brush: {}
 }
 
 export default {
@@ -131,13 +130,15 @@ export default {
   },
   data() {
     const option = cloneDeep(initialOption)
-    option.title.text = `{a|Channel: 136}{a|Count: 1475}{b|Energy:  381.409}`
     option.series.itemStyle.color = this.color
     option.xAxis.name = this.title + ' Channel'
     return {
       option
     }
   },
+  mounted() {
+    this.option.brush = { toolbox: [] }
+  },
   methods: {
     resize() {
       this.$refs.chartRef && this.$refs.chartRef.resize()
@@ -154,10 +155,66 @@ export default {
       }, 0)
     },
 
+    // 设置范围
+    setRange(min, max) {
+      this.option.xAxis.min = min
+      this.option.xAxis.max = max
+    },
+
+    // 鼠标在图表上移动时
     handleMouseMove(param) {
       const { offsetX, offsetY } = param
       const point = getXAxisAndYAxisByPosition(this.$refs.chartRef.getChartInstance(), offsetX, offsetY)
       this.setLinePosition(point ? point[0].toFixed() : null)
+    },
+
+    // 鼠标按下时开启可刷选状态
+    handleMouseDown() {
+      const chart = this.$refs.chartRef.getChartInstance()
+      chart.dispatchAction({
+        type: 'takeGlobalCursor',
+        // 如果想变为“可刷选状态”，必须设置。不设置则会关闭“可刷选状态”。
+        key: 'brush',
+        brushOption: {
+          // 参见 brush 组件的 brushType。如果设置为 false 则关闭“可刷选状态”。
+          brushType: 'lineX'
+        }
+      })
+    },
+
+    // 刷选完毕时
+    handleBrushEnd(param) {
+      const chart = this.$refs.chartRef.getChartInstance()
+
+      const areas = param.areas[0]
+      if (areas) {
+        const range = areas.range
+        const [minX, maxX] = range
+
+        const point1 = chart.convertFromPixel({ seriesIndex: 0 }, [minX, 0])
+        const point2 = chart.convertFromPixel({ seriesIndex: 0 }, [maxX, 0])
+
+        const [x1, x2] = [parseInt(point1[0].toFixed()), parseInt(point2[0].toFixed())] // 根据解析出的数据确定真实的范围
+        this.option.xAxis.min = x1
+        this.option.xAxis.max = x2
+
+        this.emitRangeChange([x1, x2])
+      }
+
+      // 清理刷选的范围
+      chart.dispatchAction({
+        type: 'brush',
+        areas: []
+      })
+
+      // 改为不可刷选状态
+      chart.dispatchAction({
+        type: 'takeGlobalCursor'
+      })
+    },
+
+    emitRangeChange(range) {
+      this.$emit('rangeChange', range)
     }
   }
 }
@@ -165,23 +222,54 @@ export default {
 
 <style lang="less" scoped>
 .spectrum-line-chart {
-  display: flex;
   height: 100%;
 
-  .title {
-    writing-mode: vertical-rl;
-    color: #5b9cba;
-    font-size: 16px;
-    transform: rotate(180deg);
-    text-align: center;
-    user-select: none;
-    white-space: nowrap;
-    overflow: hidden;
-    text-overflow: ellipsis;
+  .calculation {
+    line-height: 10px;
+    text-align: right;
+    font-size: 14px;
+
+    .error {
+      color: #ff5656;
+    }
+
+    span {
+      color: #ade6ee;
+
+      &:not(:last-child) {
+        margin-right: 27px;
+      }
+    }
   }
 
-  &-main {
-    flex: 1;
+  .chart-container {
+    display: flex;
+    margin-top: 7px;
+    margin-bottom: 8px;
+    height: calc(100% - 35px);
+
+    .left-title {
+      writing-mode: vertical-rl;
+      color: #5b9cba;
+      font-size: 14px;
+      transform: rotate(180deg);
+      text-align: center;
+      user-select: none;
+      white-space: nowrap;
+      overflow: hidden;
+      text-overflow: ellipsis;
+    }
+
+    .spectrum-line-chart-main {
+      flex: 1;
+    }
+  }
+
+  .bottom-title {
+    line-height: 10px;
+    font-size: 14px;
+    color: #5b9cba;
+    text-align: center;
   }
 }
 </style>