地图服务相关逻辑
This commit is contained in:
parent
7978bd3a61
commit
f2015af2b7
|
|
@ -0,0 +1,236 @@
|
|||
import Vue from 'vue'
|
||||
|
||||
/**
|
||||
* 获取所有图层信息
|
||||
* @param {mapboxgl.Map} map - Mapbox 地图实例
|
||||
* @returns {Array} 图层信息数组
|
||||
*/
|
||||
export function getAllLayers(map) {
|
||||
if (!map || !map.getStyle()) {
|
||||
return [];
|
||||
}
|
||||
|
||||
const style = map.getStyle();
|
||||
return style.layers || [];
|
||||
}
|
||||
|
||||
/**
|
||||
* 安全地设置图层属性
|
||||
* @param {mapboxgl.Map} map - Mapbox 地图实例
|
||||
* @param {string} layerId - 图层ID
|
||||
* @param {string} property - 属性名
|
||||
* @param {any} value - 属性值
|
||||
* @returns {boolean}
|
||||
*/
|
||||
export function safeSetPaintProperty(map, layerId, property, value) {
|
||||
if (!map.getLayer(layerId)) {
|
||||
console.warn(`图层 ${layerId} 不存在，无法设置属性`);
|
||||
return false;
|
||||
}
|
||||
|
||||
try {
|
||||
map.setPaintProperty(layerId, property, value);
|
||||
return true;
|
||||
} catch (error) {
|
||||
console.error(`设置图层 ${layerId} 属性 ${property} 失败:`, error);
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
export function handleWheel(mapId = "home") {
|
||||
document.addEventListener("keydown", () => {
|
||||
// 允许鼠标滚轮缩放
|
||||
Vue.config.maps[mapId].scrollZoom.enable();
|
||||
}, { once: false, passive: false });
|
||||
document.addEventListener("keyup", () => {
|
||||
// 禁止鼠标滚轮缩放
|
||||
Vue.config.maps[mapId].scrollZoom.disable();
|
||||
}, { once: false, passive: false });
|
||||
}
|
||||
|
||||
export function initSprites(mapId = "home") {//../../../static/images/logo.png
|
||||
for (const sprite of Vue.config.sprites) {
|
||||
// Vue.config.maps[mapId].loadImage(`${Vue.config.baseUrl}/oe/${Vue.config.wwwrootBaseUrl}/sprites/${sprite}`, function (error, image) {
|
||||
Vue.config.maps[mapId].loadImage(`./static/sprites/${sprite}`, function (error, image) {
|
||||
if (error) throw error;
|
||||
if (!Vue.config.maps[mapId].hasImage(sprite))
|
||||
// 为图像启用 sdf： { sdf: true }，启用的 sdf 的图像，在 Symbol 图层中就能够通过 icon-color 属性来重新渲染图像的颜色。
|
||||
Vue.config.maps[mapId].addImage(sprite, image, { sdf: false });
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
export async function extractWMTSBoundsInfo(xmlContent) {
|
||||
const parser = new DOMParser();
|
||||
const xmlDoc = parser.parseFromString(xmlContent, "text/xml");
|
||||
|
||||
const featureTypes = xmlDoc.getElementsByTagName("Layer");
|
||||
const result = [];
|
||||
|
||||
for (let i = 0; i < featureTypes.length; i++) {
|
||||
const featureType = featureTypes[i];
|
||||
|
||||
// 提取 Name
|
||||
const nameElement = featureType.getElementsByTagName("ows:Identifier")[0];
|
||||
const name = nameElement ? nameElement.textContent || "" : "";
|
||||
|
||||
// 提取 WGS84BoundingBox
|
||||
const wgs84BoundingBox = featureType.getElementsByTagName("ows:WGS84BoundingBox")[0];
|
||||
|
||||
if (wgs84BoundingBox) {
|
||||
const lowerCorner = wgs84BoundingBox.getElementsByTagName("ows:LowerCorner")[0].textContent;
|
||||
const upperCorner = wgs84BoundingBox.getElementsByTagName("ows:UpperCorner")[0].textContent;
|
||||
if (name) {
|
||||
result.push({
|
||||
layerName: name,
|
||||
bounds: [Number(lowerCorner.split(" ")[0]), Number(lowerCorner.split(" ")[1]), Number(upperCorner.split(" ")[0]), Number(upperCorner.split(" ")[1])]
|
||||
});
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
/**
|
||||
* 触发指定图层的点击事件
|
||||
* @param {mapboxgl.Map} map - Mapbox地图实例
|
||||
* @param {string} layerId - 要触发的图层ID
|
||||
* @param {Array} lnglat - 经纬度 [经度, 纬度]
|
||||
* @param {Object} options - 附加选项
|
||||
*/
|
||||
export async function triggerLayerClick(mapId, sourceLayerId, layerId, lnglat, options = {}) {
|
||||
if (!Vue.config.maps[mapId] || !layerId || !lnglat) {
|
||||
console.error('缺少必要参数');
|
||||
return null;
|
||||
}
|
||||
|
||||
const [lng, lat] = Array.isArray(lnglat) ? lnglat : [lnglat.lng, lnglat.lat];
|
||||
|
||||
// 1. 确保地图和图层存在
|
||||
if (!Vue.config.maps[mapId].getLayer(layerId)) {
|
||||
console.error(`图层 ${layerId} 不存在`);
|
||||
return null;
|
||||
}
|
||||
|
||||
// 2. 将经纬度转换为屏幕坐标
|
||||
const point = Vue.config.maps[mapId].project([lng, lat]);
|
||||
|
||||
// 3. 查询该点/源下的图层要素
|
||||
const bbox = [
|
||||
[point.x - 1, point.y - 1],
|
||||
[point.x + 1, point.y + 1]
|
||||
];
|
||||
|
||||
const map = Vue.config.maps[mapId];
|
||||
console.log("layerId: ", layerId, " sourceLayerId: ", sourceLayerId, " options: ", options);
|
||||
|
||||
// 尝试从图层获取 source id（一些图层的 source 名称与 layerId 不同）
|
||||
const layerObj = map.getLayer(layerId);
|
||||
const sourceId = (layerObj && layerObj.source) ? layerObj.source : layerId;
|
||||
const source = map.getSource(sourceId);
|
||||
|
||||
// 在浏览器控制台或 triggerLayerClick 中运行（替换 sourceId/sourceLayerName）
|
||||
const feats = map.querySourceFeatures(sourceId, { sourceLayer: "sample_station_TS-46-1_Ship_CTDI_SY" }) || [];
|
||||
console.log(sourceId,">>>>>>>>>>>>>>>>>>>>sample_station_TS-46-1_Ship_CTDI_SY",' ======sample of features:', feats.slice(0, 5));
|
||||
console.log('props keys:', feats.slice(0, 5).map(f => Object.keys(f.properties || {})));
|
||||
|
||||
let relatedTracks = map.querySourceFeatures(sourceId, {
|
||||
sourceLayer: sourceId,
|
||||
// 支持的过滤条件：==, !=, >, >=, <, <=, in, !in, all, any, none, has, !has
|
||||
filter: ['==', ['get', 'sample_name'], options.sample_name]
|
||||
});
|
||||
console.log("relatedTracks: ", relatedTracks);
|
||||
|
||||
// 打印样式中与该 source 关联的所有 source-layer（便于调试 vector tiles 的 layer 名称）
|
||||
try {
|
||||
const styleLayers = map.getStyle().layers || [];
|
||||
const sourceLayerNames = new Set();
|
||||
styleLayers.forEach(l => {
|
||||
if (l.source === sourceId && l['source-layer']) sourceLayerNames.add(l['source-layer']);
|
||||
});
|
||||
console.log('candidate source-layer names for', sourceId, Array.from(sourceLayerNames));
|
||||
} catch (err) {
|
||||
console.warn('failed to enumerate style layers for debugging:', err);
|
||||
}
|
||||
|
||||
// 使用表达式 ['==', ['get', prop], value] 来做精确匹配
|
||||
const propName = 'sample_name';
|
||||
const propValue = options.sample_name;
|
||||
const filterExpr = ['==', ['get', propName], propValue];
|
||||
// const filterExpr = ['==', propName, propValue];
|
||||
|
||||
let features = [];
|
||||
try {
|
||||
if (source) {
|
||||
// 如果 source 尚未加载完，等待一次 sourcedata（有时 vector tiles 尚未请求完成）
|
||||
if (!map.isSourceLoaded(sourceId)) {
|
||||
console.log('source not loaded yet, waiting for sourcedata:', sourceId);
|
||||
await new Promise((resolve) => {
|
||||
const onData = (e) => {
|
||||
if (e && e.sourceId === sourceId && map.isSourceLoaded(sourceId)) {
|
||||
map.off('sourcedata', onData);
|
||||
resolve();
|
||||
}
|
||||
};
|
||||
// 超时保护，2秒后继续
|
||||
const timeout = setTimeout(() => {
|
||||
map.off('sourcedata', onData);
|
||||
resolve();
|
||||
}, 2000);
|
||||
map.on('sourcedata', onData);
|
||||
});
|
||||
}
|
||||
|
||||
console.log("sourceId: ", sourceId, " sourceLayerId: ", sourceLayerId, " options: ", options);
|
||||
// 优先使用 querySourceFeatures（对 vector/geojson 源性能更好）
|
||||
features = map.querySourceFeatures(sourceId, { sourceLayer: sourceLayerId, filter: filterExpr }) || [];
|
||||
}
|
||||
} catch (err) {
|
||||
console.warn('querySourceFeatures failed:', err);
|
||||
}
|
||||
|
||||
// 如果通过 source 查询不到，再退回到渲染层查询（rendered features）作为兜底
|
||||
if (!features || features.length === 0) {
|
||||
try {
|
||||
features = map.queryRenderedFeatures(bbox, { layers: [layerId], filter: filterExpr }) || [];
|
||||
} catch (err) {
|
||||
console.warn('queryRenderedFeatures fallback failed:', err);
|
||||
features = [];
|
||||
}
|
||||
}
|
||||
|
||||
console.log('resolved sourceId:', sourceId, 'found features:', features.length);
|
||||
|
||||
// 4. 创建事件对象
|
||||
const eventObject = {
|
||||
lngLat: { lng, lat },
|
||||
point: point,
|
||||
features: features,
|
||||
options: options,
|
||||
originalEvent: createSimulatedEvent(point),
|
||||
target: Vue.config.maps[mapId].getCanvas(),
|
||||
type: 'click',
|
||||
layerId: layerId,
|
||||
timestamp: Date.now()
|
||||
};
|
||||
|
||||
// 5. 触发图层特定的点击事件
|
||||
Vue.config.maps[mapId].fire('click', eventObject, { layerId: layerId });
|
||||
|
||||
return {
|
||||
event: eventObject,
|
||||
features: features,
|
||||
success: true
|
||||
};
|
||||
}
|
||||
|
||||
function createSimulatedEvent(point) {
|
||||
return {
|
||||
type: 'click',
|
||||
clientX: point.x,
|
||||
clientY: point.y,
|
||||
preventDefault: () => { },
|
||||
stopPropagation: () => { }
|
||||
};
|
||||
}
|
||||
Loading…
Reference in New Issue