Backend DevelopmentPHP TutorialUsing Baidu Map API to realize indoor map display and navigation in PHPUsing Baidu Map API to realize indoor map display and navigation in PHP
Use Baidu Map API to realize indoor map display and navigation in PHP
With the continuous advancement and development of science and technology, indoor navigation systems have attracted more and more attention, and Baidu Map is the most commonly used in China. One of the map services, it provides a rich API interface for developers to use. In this article, we will explore how to use PHP combined with Baidu Map API to realize indoor map display and navigation.
1. Environment preparation
Before we start, we need to ensure that PHP has been installed in the environment, have a Baidu Maps developer account, and register an application to obtain an API key in order to complete Baidu Map API calls.
2. Introduction of Baidu Map API
First, we need to introduce the JavaScript file of Baidu Map API into the PHP file. Assuming that our file is called "indoor-map.php", we can add the following code in the header:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>室内地图展示与导航</title>
<style type="text/css">
#map {
width: 100%;
height: 500px;
}
</style>
<script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=你的API密钥"></script>
</head>
<body>
<div id="map"></div>
</body>
</html>It should be noted that "your API key" in the above code needs to be replaced by your The key I obtained from the Baidu Map Developer Platform.
3. Display indoor map
After the page is loaded, we can display the indoor map by calling the relevant methods of Baidu Map API. Add the following code in the
<script type="text/javascript">
// 创建地图实例
var map = new BMap.Map("map");
// 设定地图的中心点和缩放级别
var point = new BMap.Point(116.404, 39.915);
map.centerAndZoom(point, 17);
// 启用室内地图控件
map.enableIndoor();
// 展示室内地图
var indoorManager = new BMapLib.IndoorManager(map);
indoorManager.enableIndoorMapControl();
// 添加室内POI图层
var poiLayer = new BMap.IndoorPOI(map);
poiLayer.enable3DBuilding();
// 加载室内地图
indoorManager.setMapCallback(function(result) {
if (result.error === 0) {
indoorManager.show(result.floor_index);
}
});
indoorManager.init("室内地图ID");
</script>Among them, the "indoor map ID" in the code needs to be replaced with the ID of the specific indoor map you are using.
4. Indoor Navigation
To implement indoor navigation, we need to use the path planning function of Baidu Map API. Add the following code in the <script> tag of the page: </script>
// 创建室内导航对象
var indoorRoute = new BMap.IndoorRoute(map, {
renderOptions: {
map: map,
autoViewport: true
},
onMarkersSet: function(data) {
// 设置起点和终点图标
var iconStart = new BMap.Icon("起点图标URL", new BMap.Size(32, 32));
var iconEnd = new BMap.Icon("终点图标URL", new BMap.Size(32, 32));
var startMarker = new BMap.Marker(data.start.point, {icon: iconStart});
var endMarker = new BMap.Marker(data.end.point, {icon: iconEnd});
map.addOverlay(startMarker);
map.addOverlay(endMarker);
}
});
// 定义起点和终点
var startPoint = new BMap.Point(116.404, 39.915);
var endPoint = new BMap.Point(116.409, 39.916);
// 开始室内导航
indoorRoute.route(startPoint, endPoint);The "starting point icon URL" and "endpoint icon URL" in the code need to be replaced with your own defined icon URL address.
5. Notes
When using Baidu Map API, you need to pay attention to the following points:
- You need to ensure that the PHP environment can run JavaScript code normally.
- When calling Baidu Map API, you need to introduce the correct API key.
- When displaying indoor maps, you need to replace "Indoor Map ID" with the specific map ID.
- When using the indoor navigation function, you need to replace the specific coordinates of the start and end points and the icon URL address.
This article introduces how to realize indoor map display and navigation by combining PHP and Baidu Map API. I hope this article will be helpful to you in developing indoor navigation systems.
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