From 5fdaf3cff8add48bb5c1f0da74378b271f3cdbdf Mon Sep 17 00:00:00 2001
From: 罗广辉 <guanghui.luo@foxmail.com>
Date: Mon, 07 Apr 2025 21:41:03 +0800
Subject: [PATCH] feat: 选择性清除实体
---
src/views/Home/useMapAggregation/useMapAggregation.js | 45 ++++++++++++++++++++++-----------------------
1 files changed, 22 insertions(+), 23 deletions(-)
diff --git a/src/views/Home/useMapAggregation/useMapAggregation.js b/src/views/Home/useMapAggregation/useMapAggregation.js
index d41f71f..7d0da18 100644
--- a/src/views/Home/useMapAggregation/useMapAggregation.js
+++ b/src/views/Home/useMapAggregation/useMapAggregation.js
@@ -50,7 +50,7 @@
// 确定缩放比例
const determineScaling = () => {
- console.log('确定缩放比例');
+ // console.log('确定缩放比例');
if (!viewer) return;
let height = viewer.camera.positionCartographic.height;
// 根据高度展示对应的 gJson
@@ -61,9 +61,9 @@
active = item.name;
removeEntities();
removeLabel();
+ renderOutline(item);
if (!item.gJson && !item.splashedList?.length) return;
item.gJson ? aggregation(item) : splashed(item);
- renderOutline(item);
break;
}
}
@@ -160,8 +160,6 @@
const splashedList = type === 'device'
? await getDeviceList(areaCode)
: eventList.map(i=>({eventId:i.id,latitude:Number(i.latitude),longitude:Number(i.longitude),type:'event'}))
- console.log(list, 'list');
- console.log(splashedList, 'splashedList');
const hierarchy = convertToHierarchy(areaCode.slice(0, 6));
const jsonPath = hierarchy.join('/');
const jsonPathPre = hierarchy.slice(0, hierarchy.length - 1).join('/');
@@ -169,14 +167,10 @@
scalingJudgment[0].gJson = null;
scalingJudgment[0].splashedList = splashedList;
active = null;
- // 轮廓
- const outlineGJson = await getOutLine(jsonPathPre, hierarchy);
- scalingJudgment.forEach(item => item.show && (item.outline = outlineGJson));
// 省
if (hierarchy.length === 1) {
const gJson1 = await getFiler(`${defaultDir}${jsonPath}/indexDistrict.json`);
const gJson2 = await getFiler(`${defaultDir}${jsonPath}/index.json`);
-
scalingJudgment[1].gJson = {
...gJson1,
features: gJson1.features.map(item => {
@@ -184,10 +178,7 @@
return { ...item, data: {...findData,type: type + 'Aggregation'} }
}),
};
- console.log(injectData(gJson2, list));
scalingJudgment[2].gJson = injectData(gJson2, list);
- const { lng, lat } = getCenterPoint(gJson2.features.map(item => item.properties.center));
- flyTo({ longitude: lng, latitude: lat }, 0, scalingJudgment[2].height);
}
// 市
if (hierarchy.length === 2) {
@@ -195,8 +186,6 @@
scalingJudgment[2].show = false;
const gJson1 = await getFiler(`${defaultDir}${jsonPath}/index.json`);
scalingJudgment[1].gJson = injectData(gJson1, list);
- const center = getCenterPoint(gJson1.features.map(item => item.properties.center));
- flyTo({ longitude: center.lng, latitude: center.lat }, 0, scalingJudgment[1].height);
}
// 区县
if (hierarchy.length === 3) {
@@ -204,16 +193,18 @@
scalingJudgment[1].show = false;
scalingJudgment[2].gJson = null;
scalingJudgment[2].show = false;
- const outlineGJson = await getOutLine(jsonPathPre, hierarchy);
- const center = outlineGJson.features[0].properties.center;
- flyTo({ longitude: center[0], latitude: center[1] }, 0, scalingJudgment[0].height);
}
- determineScaling()
+ // 轮廓
+ const outlineGJson = await getOutLine(jsonPathPre, hierarchy);
+ scalingJudgment.forEach(item => item.show && (item.outline = outlineGJson));
+ const [longitude,latitude] = outlineGJson.features[0].properties.centroid
+ flyTo({ longitude, latitude }, 0, scalingJudgment[(hierarchy.length-3) * (-1)].height);
};
watch(
selectedAreaCode,
async (newValue, oldValue) => {
+ if (!viewer) return
viewer.scene.postRender.removeEventListener(determineScaling)
initMapData(newValue).then(()=>{
viewer.scene.postRender.addEventListener(determineScaling)
@@ -224,8 +215,9 @@
//散点机巢
function splashed(row) {
- row.splashedList.forEach(item => {
+ row.splashedList.forEach((item,index) => {
viewer.entities.add({
+ id: `aggregation-splashed-${index}`,
position: Cesium.Cartesian3.fromDegrees(item.longitude, item.latitude),
label: {
// 随机整数
@@ -286,17 +278,18 @@
// const {lng,lat} = getCenterPoint(item1.geometry.coordinates[0][0])
return {
name: item1.properties.name,
- position: item1.properties.center,
+ position: item1.properties.centroid,
data: item1.data,
id: item1.region_code,
}
});
// 遍历特征并添加实体
- featuresList.forEach(feature => {
+ featuresList.forEach((feature,index) => {
if (!feature.position) return;
const position = Cesium.Cartesian3.fromDegrees(feature.position[0], feature.position[1]);
viewer.entities.add({
position: position,
+ id: `aggregation-name-${index}`,
label: {
text: feature.name,
font: '14pt Source Han Sans CN',
@@ -309,12 +302,13 @@
},
});
viewer.entities.add({
- id: feature.id,
+ id: `aggregation-count-${index}`,
position: position,
label: {
- text: feature.data.total_device_count.toString(),
+ text: (feature.data.total_device_count || 0).toString(),
font: '12pt Source Han Sans CN',
fillColor: Cesium.Color.BLACK,
+ outlineColor: Cesium.Color.BLACK,
style: Cesium.LabelStyle.FILL_AND_OUTLINE,
eyeOffset: new Cesium.Cartesian3(0, 0, -10), // 让label "浮" 在广告牌前面
},
@@ -423,7 +417,11 @@
// 移除 点 和 gjson 实体
const removeEntities = () => {
viewer.dataSources?.removeAll(true);
- viewer.entities?.removeAll();
+ // viewer.entities?.removeAll();
+ const entitiesIDs = viewer.entities.values.map(i=>i.id)
+ entitiesIDs.forEach(item => {
+ item.includes('aggregation-') && viewer.entities.removeById(item)
+ })
};
// 移除弹框标签
const removeLabel = () => {
@@ -433,6 +431,7 @@
// 移除所有监听事件，变量置空
const removeAll = () => {
+ if (!viewer) return
removeEntities();
removeLabel();
// viewer.camera.moveEnd.removeEventListener(determineScaling);
--
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