<template>
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<div class="district">
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<div class="left-top">
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<span>监测位置</span>
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</div>
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<div class="left-content district-content">
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<div style="margin-left: 5px; margin-bottom: 5px">
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<span style="color: white">北京市：</span>
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<el-select
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@change="handleChange1"
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v-model="selectValue1"
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placeholder="Select"
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size="mini"
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style="width: 240px"
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>
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<el-option
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v-for="item in BJoptions"
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:key="item.value"
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:label="item.label"
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:value="item.value"
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/>
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</el-select>
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</div>
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<div style="margin-left: 5px">
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<span style="color: white">重点沟：</span>
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<el-select
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@change="handleChange"
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v-model="selectValue"
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placeholder="Select"
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size="mini"
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style="width: 240px"
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>
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<el-option
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v-for="item in options"
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:key="item.value"
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:label="item.label"
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:value="item.value"
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/>
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</el-select>
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</div>
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<!-- 滚动区域 -->
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<div style="overflow-y: auto; height: 91%; position: relative">
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<!-- 加载遮罩层 -->
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<div v-if="loading" class="loading-overlay">
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<div class="loading-content">
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<el-icon class="loading-icon"><Loading /></el-icon>
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<span class="loading-text">数据加载中...</span>
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</div>
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</div>
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<div
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v-else
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v-for="(item, key) in districtList"
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:key="key"
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class="district-item"
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@click="handleClick(item)"
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>
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<div class="district-item-icon"></div>
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<div class="district-item-text">{{ item.hdName }}</div>
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</div>
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</div>
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</div>
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</div>
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</template>
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<script setup>
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import { ref, onMounted, watch, onBeforeUnmount } from "vue";
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import { createPoint,clearAllPoints } from "@/utils/map";
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import { useSimStore } from "@/store/simulation";
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import { initeWaterPrimitiveView } from "@/utils/water"; //相机flyTo函数，后续options列表中有对应经纬度后弃用
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import { useRoute, onBeforeRouteUpdate } from "vue-router";
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import { Loading } from "@element-plus/icons-vue";
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const districtList = ref([]);
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const simStore = useSimStore();
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const route = useRoute();
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onBeforeUnmount(() => {
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if (route.path !== "/yhgl") {
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clearAllPoints();
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}
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});
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const selectValue = ref("孙胡沟");
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const selectValue1 = ref("北京市");
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const BJoptions = ref([]);
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const options = ref([
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{
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value: "孙胡沟",
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label: "孙胡沟",
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},
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{
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value: "鱼水洞后沟",
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label: "鱼水洞后沟",
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},
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{
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value: "于家西沟",
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label: "于家西沟",
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},
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{
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value: "北河沟",
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label: "北河沟",
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},
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{
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value: "龙泉峪村",
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label: "龙泉峪村",
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},
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]);
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const loading = ref(true); // 控制加载状态
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function handleClick(district) {
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// 此处调用是因为GisView页面会在点击下一乡镇之前把上一个选择的区域的隐患点清除掉（如果刚好选择了孙胡沟，那么下一个点击将会清空孙胡沟的隐患点）
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initializeDevicePoints();
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const entity = viewer.entities.getById(district.hdId);
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if (entity) {
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viewer.flyTo(entity, {
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offset: {
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heading: Cesium.Math.toRadians(0),
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pitch: Cesium.Math.toRadians(-45),
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range: 4000,
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},
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});
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}
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}
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const initializeDevicePoints = async () => {
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await Promise.all(
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districtList.value.map(async (item, index) => {
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// 根据需求可增删
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item.id = item.hdId;
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item.name = item.hdName;
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item.latitude = item.lat;
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item.longitude = item.lon;
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item.showBillboard = true;
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item.type = item.disasterType;
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item.className = "district";
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await createPoint(item);
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// 打印每个设备的名称和设备类型
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// console.log(`设备名称: ${item.id}, 设备类型: ${item.name}`);
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})
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);
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};
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const filterDataByArea = async (areaName) => {
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clearAllPoints();
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if (!areaName || !simStore.DangerPoint || simStore.DangerPoint.length === 0) {
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districtList.value = [];
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return;
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}
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const filteredData = simStore.DangerPoint.filter((item) =>
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item.position?.includes(areaName)
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);
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if (JSON.stringify(districtList.value) !== JSON.stringify(filteredData)) {
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districtList.value = filteredData;
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await initializeDevicePoints();
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}
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};
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// 处理区域变化事件
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const handleChange = (item) => {
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const areaName = item;
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if (!areaName) {
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ElMessage.warning("请选择一个区域");
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return;
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}
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filterDataByArea(areaName);
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};
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let isInitialized = false;
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// watch(
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// () => simStore.DangerShowSwitch,
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// async (newValue, oldValue) => {
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// console.log("当前状态：", newValue);
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// if (newValue) {
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// if (!isInitialized) {
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// await initializeDevicePoints();
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// isInitialized = true;
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// }
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// } else {
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// clearAllPoints();
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// isInitialized = false;
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// }
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// }
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// );
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// 监听 simStore.DangerPoint 变化
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watch(
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() => simStore.DangerPoint,
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(newVal) => {
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if (newVal && newVal.length > 0) {
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filterDataByArea(selectValue.value);
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loading.value = false; // 数据加载完成
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} else {
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clearAllPoints();
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districtList.value = [];
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loading.value = true; // 数据未准备就绪
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}
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}
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);
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onMounted(() => {
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clearAllPoints();
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// initeWaterPrimitiveView();
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// 默认先检查一遍数据
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if (simStore.DangerPoint && simStore.DangerPoint.length > 0) {
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filterDataByArea("孙胡沟");
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loading.value = false;
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} else {
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loading.value = true;
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}
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});
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</script>
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<style lang="less" scoped>
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.district {
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position: absolute;
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width: 345px;
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top: 100px;
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left: 30px;
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bottom: 55px;
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z-index: 99;
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}
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.district-item {
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height: 30px;
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cursor: pointer;
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margin-top: 10px;
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}
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.district-content {
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padding: 10px;
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box-sizing: border-box;
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height: calc(100% - 70px);
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position: relative;
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}
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.district-item-icon {
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background: url("@/assets/img/menu/locationicon.png") no-repeat;
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background-position: 5px 5px;
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width: 30px;
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height: 30px;
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float: left;
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}
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.district-item-text {
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color: white;
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line-height: 30px;
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white-space: nowrap;
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overflow: hidden;
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text-overflow: ellipsis;
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}
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.loading-overlay {
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position: absolute;
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top: 0;
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left: 0;
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right: 0;
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bottom: 0;
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// background-color: rgba(0, 0, 0, 0.7);
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display: flex;
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justify-content: center;
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align-items: center;
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z-index: 100;
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// border-radius: 4px;
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}
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.loading-content {
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display: flex;
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flex-direction: column;
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align-items: center;
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color: #fff;
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}
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.loading-icon {
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font-size: 24px;
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margin-bottom: 8px;
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animation: rotating 2s linear infinite;
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}
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.loading-text {
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font-size: 14px;
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}
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@keyframes rotating {
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0% {
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transform: rotate(0deg);
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}
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100% {
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transform: rotate(360deg);
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}
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}
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/deep/ .el-select__placeholder {
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color: white;
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}
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/deep/ .el-select-dropdown__item.hover,
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.el-select-dropdown__item:hover {
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color: white !important;
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background-color: rgb(38, 124, 124, 0.5);
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}
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</style>
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