fix: 图表功能优化。

src/components/other/index.vue

@@ -324,11 +324,12 @@
                 <view @click="changeShow">{{ setTitle }}</view>
               </nut-col> -->
             </nut-row>
-            <view class="m_t_20" v-show="showChart">
-              <view class="loading" v-show="loading">
+            <view :style="{ position: 'relative', marginTop: '10px' }" v-show="showChart">
+              <view class="loading-container" v-show="loading">
                 <Loading />
               </view>
               <canvas
+                v-if="chartsDatas.length > 0"
                 class="charts"
                 type="2d"
                 :id="
@@ -345,11 +346,11 @@
                   height: chartConf.cHeight + 'px',
                 }"
               ></canvas>
-              <!-- <nut-empty description="暂无数据" v-show="chartsDatas.r.length == 0">
+              <nut-empty description="暂无数据" v-else>
                 <template #image>
                   <img :src="pond404" />
                 </template>
-          </nut-empty> -->
+              </nut-empty>
             </view>
           </nut-col>
         </nut-row>
@@ -703,9 +704,7 @@ const paramsHistory = ref({
   intervalType: 1,    // 时间间隔类型：1-1天, 2-3天, 3-7天
 });
 // 图表数据
-const chartsDatas = ref<any>({
-  r: [],
-});
+const chartsDatas = ref<any>([]);
 const uChartsOp = ref<any>({});
 // 图表参数
 const chartConf = reactive({
@@ -780,7 +779,7 @@ Taro.useDidShow(() => {
 onMounted(() => {
   const sysInfo = Taro.getSystemInfoSync();
   let cWidth = (700 / 750) * sysInfo.screenWidth;
-  let cHeight = (165 / 750) * sysInfo.windowHeight;
+  let cHeight = (220 / 750) * sysInfo.windowHeight;
   let pixelRatio = sysInfo.pixelRatio;
   chartConf.cWidth = cWidth;
   chartConf.cHeight = cHeight;
@@ -1141,7 +1140,7 @@ function drawCharts(type) {
     console.log('📅 天数:', dayDev.value);
     
     if (!data || data.length === 0) {
-      console.error('❌ 数据为空，无法绘制图表');
+      console.log('⚠️ 数据为空，不绘制图表');
       loading.value = false;
       return;
     }
@@ -1503,7 +1502,8 @@ function createCharts(x, series, ids) {
               scrollAlign: "left",
               labelCount: 7,
               rotateLabel: true,
-              rotateAngle: 25,
+              rotateAngle: 30,
+              marginTop: 10,
             },
             yAxis: {
               disableGrid: false,
@@ -2078,6 +2078,16 @@ defineExpose({
   height: 330px;
   width: 100%;
 }
+.loading-container {
+  position: absolute;
+  top: 50%;
+  left: 50%;
+  transform: translate(-50%, -50%);
+  z-index: 10;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
 
 /** 底部弹出层 */
 .rowPd {