Programmer Help

catalog 1, Introduction 2, Map of gaud 3, Tencent map 4, Summary 1, Introduction Recently, in the project, it is necessary to use the function of obtaining the user's current geographic location information, obtaining the scene of the current user's location saved in the database, and supporti ...

Demand: display the population distribution of a region on the map, and display the total population of a certain category of each location on the circle (the effect is the same as the aggregation map). design sketch: Implementation steps 1. Import documents <script type="text/javascript" src="https://Webapi. Amap. COM / map ...

Case story: in the Android car test process, the customer feedback low probability occasionally appears in the process of starting the Gaode map App, An error was reported: "the Gaud map can't continue to run". The customer said that it only happened once, but it hasn't been repeated in the future, The test manager arranged us to be ...

Jane book: https://www.jianshu.com/p/8189f4da31f6 Meet a demand: draw polygon area on Gaud map What else can we do Goldmaps sdk reference manual , found a way:[ addPolygon(PolygonOptions options)] public final Polygon addPolygon(PolygonOptions options) Add a polygon object to the map. Understand the main categ ...

Jane book: https://www.jianshu.com/p/34421190a526 It's not a need, it's just a good ape When checking the Gaud map API, you can see such an interface:[ AMap.OnMarkerDragListener] public static interface AMap.OnMarkerDragListener marker Drag the event listening interface. So I thought, why don't we make a polyg ...

One of the functions used in the project is to open map app to realize address navigation by clicking address. The following picture: The implementation idea is to click the marker icon in H5 page and then carry out the route planning and navigation of the current location and the address on the page. Because the project uses the Gaud map, so ...

Explain Due to the needs of the project, this function is similar to the location of wechat friends circle publishing thinking You can use the API of the third-party map service provider to query the POI list according to the current location, and then display it on the applet interface The effect is: code implementatio ...

​   It takes about eight minutes to read the text.   1 Target scenario   What a terrible thing it is for a girlfriend to know Python!   A friend told me that he had neglected one thing. If his girlfriend knew Python, wouldn't it be a rollover? If so, is the geographic location of the picture sent by the girlfriend real? It's time to put a Big B ...

Preface: In the recent project, the three-level information of provincial and urban areas in China has been used, but the information found on the Internet is relatively old. It doesn't match the latest regional information. Later, I saw that there was such information on the map of Gaode, so I analyzed the api interface and generated the sql i ...

Define a tile address ol.source.TileImage.tileUrlFunction Official documents Therefore, we only need to override the ol.source.TileImage.tileUrlFunction method Data preparation The crawler downloads some pictures with the smallest magnification of 256 * 256 Simple server configuration, put these pictures under tomcat to make them access nor ...