From d0f5933cb7fe9196ca0250252efc820a1a9d947e Mon Sep 17 00:00:00 2001
From: riku <risaku@163.com>
Date: 星期三, 08 五月 2024 22:47:30 +0800
Subject: [PATCH] 新增历史轨迹菜单
---
src/utils/map/calculate.js | 57 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 57 insertions(+), 0 deletions(-)
diff --git a/src/utils/map/calculate.js b/src/utils/map/calculate.js
index 058531f..505d082 100644
--- a/src/utils/map/calculate.js
+++ b/src/utils/map/calculate.js
@@ -4,6 +4,52 @@
import { map } from './index_old';
+function _prepare4convert(lnglats) {
+ var coor = [];
+ var maxLength = 1000;
+ var start = 0;
+ var end = start + maxLength;
+ while (end <= lnglats.length) {
+ coor.push(lnglats.slice(start, end));
+ start += maxLength;
+ end += maxLength;
+ }
+ if (start < lnglats.length) {
+ coor.push(lnglats.slice(start));
+ }
+ return coor;
+}
+
+function parse2LngLat(lnglats) {
+ // 鍒涘缓鍖呭惈4涓妭鐐圭殑鎶樼嚎鍙婃枃瀛楁爣娉�
+ var path = [];
+ lnglats.forEach(function (value) {
+ // eslint-disable-next-line no-undef
+ path.push(new AMap.LngLat(value[0], value[1]));
+ });
+ return path;
+}
+
+/**
+ * 灏唃ps缁忕含搴﹁浆鎹负楂樺痉鍦板浘缁忕含搴�
+ * @param {*} lnglats
+ * @param {*} callback
+ */
+function _convertLatlng(index, coor, lnglats, callback) {
+ if (index < coor.length) {
+ var path = parse2LngLat(coor[index]);
+ // eslint-disable-next-line no-undef
+ AMap.convertFrom(path, 'gps', function (status, result) {
+ if (result.info === 'ok') {
+ lnglats.push.apply(lnglats, result.locations);
+ _convertLatlng(index + 1, coor, lnglats, callback);
+ }
+ });
+ } else {
+ callback(lnglats);
+ }
+}
+
export default {
/**
* 鏍规嵁鍧愭爣鐐广�佽窛绂诲拰瑙掑害锛屽緱鍒板彟涓�涓潗鏍囩偣
@@ -55,5 +101,16 @@
coors_GD.push(p);
}
return coors_GD;
+ },
+
+ convertFromGPS: function (gps, callback) {
+ var coor = _prepare4convert(gps);
+ _convertLatlng(0, coor, [], function (result) {
+ var gd = [];
+ result.forEach((r) => {
+ gd.push([r.lng, r.lat]);
+ });
+ callback(gd);
+ });
}
};
--
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