<template>
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<div style="display: flex; justify-content: space-between;">
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<div @click="initPickHandler">
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<img v-if="!isPicking" src="@/assets/img/timeline/断面.png" style="width: 26px;height: 26px;" />
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<img v-else src="@/assets/img/timeline/已断面.png" style="width: 26px;height: 26px;" />
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</div>
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<div @click="confirmPoints">
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<img v-if="!isUploaded" src="@/assets/img/timeline/上传.png" style="width: 26px;height: 26px;" />
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<img v-else src="@/assets/img/timeline/已上传.png" style="width: 26px;height: 26px;" />
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</div>
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<div @click="clearPoints">
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<img src="@/assets/img/timeline/清除.png" style="width: 26px;height: 26px;" />
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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 { ElMessage } from 'element-plus';
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import { ref, onMounted, defineExpose } from "vue";
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const viewer = window.viewer;
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let pickedPointsCross = ref([]);
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let pickHandlerCross = null;
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let isWallCreated = ref(false); // 新增状态变量，标记墙体是否已创建
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let isPicking = ref(false); // 是否正在拾取点
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const isUploaded = ref(false); // 控制是否已上传
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// 获取断面坐标
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function getPickPosition(windowPosition) {
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if (!viewer) return null;
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viewer.scene.globe.depthTestAgainstTerrain = true;
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const cartesian = viewer.scene.pickPosition(windowPosition);
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if (!cartesian) return null;
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const cartographic = Cesium.Cartographic.fromCartesian(cartesian);
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const longitude = Cesium.Math.toDegrees(cartographic.longitude);
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const latitude = Cesium.Math.toDegrees(cartographic.latitude);
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const terrainHeight = viewer.scene.globe.getHeight(cartographic);
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if (!terrainHeight) return null;
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const positionWithTerrainHeight = Cesium.Cartesian3.fromRadians(
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cartographic.longitude,
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cartographic.latitude,
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terrainHeight
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);
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return {
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cartesian: positionWithTerrainHeight,
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longitude,
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latitude
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};
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}
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// 选取两个断面点坐标并绘制断面截面
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function addPointToViewer(point) {
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if (pickedPointsCross.value.length >= 2) {
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clearPoints();
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}
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pickedPointsCross.value.push(point);
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drawPointOnMap(point);
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if (pickedPointsCross.value.length === 2) {
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drawWall(pickedPointsCross.value[0], pickedPointsCross.value[1]);
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isWallCreated.value = true; // 设置为已创建墙体
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}
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}
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let pickedEntitiesIds = ref([]); // 用于存储创建的点和墙的ID
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// 绘制两个断面点坐标，并记录其ID
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function drawPointOnMap(point) {
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const entity = viewer.entities.add({
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position: point.cartesian,
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point: {
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color: Cesium.Color.RED,
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outlineColor: Cesium.Color.YELLOW,
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outlineWidth: 2,
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pixelSize: 8 // 圆点半径大小
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}
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});
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pickedEntitiesIds.value.push(entity.id); // 记录实体ID
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}
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// 创建断面截面，并记录其ID
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function drawWall(startPoint, endPoint) {
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const entity = viewer.entities.add({
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wall: {
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positions: [startPoint.cartesian, endPoint.cartesian],
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material: Cesium.Color.YELLOW,
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heightReference: Cesium.HeightReference.RELATIVE_TO_GROUND,
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}
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});
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pickedEntitiesIds.value.push(entity.id); // 记录实体ID
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// 同时绘制模拟点
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drawSimulationPoint(startPoint, endPoint);
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}
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// 新增：绘制模拟点（圆柱 + label）
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function drawSimulationPoint(start, end) {
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// 计算中点（经纬度平均值）
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const midLon = (start.longitude + end.longitude) / 2;
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const midLat = (start.latitude + end.latitude) / 2;
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const terrainHeight = viewer.scene.globe.getHeight(
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Cesium.Cartographic.fromDegrees(midLon, midLat)
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);
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const cylinderBottomHeight = 0;
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const cylinderTopHeight = terrainHeight + 190;
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const cartesianBottom = viewer.scene.globe.ellipsoid.cartographicToCartesian(
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Cesium.Cartographic.fromDegrees(midLon, midLat, cylinderBottomHeight)
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);
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const CrosscylinderEntity = viewer.entities.add({
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position: cartesianBottom,
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cylinder: {
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length: 190.0,
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topRadius: 1.0,
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bottomRadius: 1.0,
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material: Cesium.Color.YELLOW,
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outline: true,
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outlineColor: Cesium.Color.YELLOW,
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slices: 64,
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heightReference: Cesium.HeightReference.RELATIVE_TO_GROUND,
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distanceDisplayCondition: new Cesium.DistanceDisplayCondition(0, 5000)
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}
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});
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const labelHeight = cylinderTopHeight + 10;
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const cartesianLabel = viewer.scene.globe.ellipsoid.cartographicToCartesian(
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Cesium.Cartographic.fromDegrees(midLon, midLat, labelHeight)
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);
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const CrosslabelEntity = viewer.entities.add({
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position: cartesianLabel,
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label: {
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text: '断面截面模拟点',
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font: 'bold 14pt monospace',
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style: Cesium.LabelStyle.FILL_AND_OUTLINE,
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fillColor: Cesium.Color.YELLOW,
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outlineColor: Cesium.Color.BLACK,
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outlineWidth: 2,
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verticalOrigin: Cesium.VerticalOrigin.CENTER,
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horizontalOrigin: Cesium.HorizontalOrigin.CENTER,
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backgroundColor: Cesium.Color.fromCssColorString('rgba(0,0,0,0.7)'),
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backgroundPadding: new Cesium.Cartesian2(10, 10),
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showBackground: true,
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scale: 1,
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distanceDisplayCondition: new Cesium.DistanceDisplayCondition(0, 5000),
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pixelOffsetScaleByDistance: new Cesium.NearFarScalar(100, 1.0, 5000, 0.3),
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heightReference: Cesium.HeightReference.NONE // 使用绝对高度
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}
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});
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pickedEntitiesIds.value.push(CrosscylinderEntity.id);
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pickedEntitiesIds.value.push(CrosslabelEntity.id);
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}
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function clearPoints() {
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for (const id of pickedEntitiesIds.value) {
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viewer.entities.remove(viewer.entities.getById(id));
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}
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pickedPointsCross.value = [];
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pickedEntitiesIds.value = [];
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isWallCreated.value = false;
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isUploaded.value = false;
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}
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function initPickHandler() {
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if (isPicking.value) {
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if (pickHandlerCross) {
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pickHandlerCross.destroy();
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pickHandlerCross = null;
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}
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isPicking.value = false;
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// isUploaded.value = false;
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ElMessage.info('已关闭--断面截面--拾取点坐标功能！');
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return;
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}
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ElMessage.success(`开始--断面截面--拾取坐标功能，请点击地图选择点位！选取完请及时关闭，避免影响其他功能！`);
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isPicking.value = true;
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if (!viewer?.scene?.canvas) return;
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if (pickHandlerCross) {
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pickHandlerCross.destroy();
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pickHandlerCross = null;
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}
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pickHandlerCross = new Cesium.ScreenSpaceEventHandler(viewer.scene.canvas);
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const clickAction = (movement) => {
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const position = getPickPosition(movement.position);
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if (position) {
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addPointToViewer(position);
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}
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};
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pickHandlerCross.setInputAction(clickAction, Cesium.ScreenSpaceEventType.LEFT_CLICK);
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}
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function confirmPoints() {
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if (pickedPointsCross.value.length < 2) {
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ElMessage.warning('请先选择两个点后再进行确认！');
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return;
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}
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const point1 = pickedPointsCross.value[0];
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const point2 = pickedPointsCross.value[1];
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console.log('第一个点信息：', {
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longitude: point1.longitude,
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latitude: point1.latitude,
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cartesian: point1.cartesian
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});
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console.log('第二个点信息：', {
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longitude: point2.longitude,
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latitude: point2.latitude,
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cartesian: point2.cartesian
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});
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isUploaded.value = true;
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ElMessage.success('正在进行--断面截面--数据分析上传，请稍等...');
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}
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defineExpose({
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clearPoints
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});
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</script>
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