| 24 | [PNG data]
5 | 15 | 25 | [PNG data]
This table is easy to query for a particular tile: for example, the query level is 8, the column number is 116, the row number is 192 of the tile data:
SQLite>SELECTfromWHERE=8and=116 and=192; [PNG data]
Tile_data is a binary stream file that can be easily read from the Mbtiles database, whether it's a desktop app or Android or iOS app.
Here is a demo program I made with Delphi:
Cita
Google Maps API Reference manual Map
Constructors/Objects
Description
Map ()
Creates a new map in the specified HTML container, which is typically a DIV element.
Overlay Layer
Constructors/Objects
Description
Marker
Create a tag.
Markeroptions
The option t
The offline development package for Google Map API V3 (3.9.12), which was previously downloaded from Rover Tang, is always working, but when using the offline package, it is found that the online satellite map cannot be displayed.
It should be Google's online satellite map service address has changed. It encapsulates an up-to-date 3.16.2 version of the offline development package, tested, online street
The steps are as follows:
Prerequisites: Each Google Maps API Key corresponds to an MD5 fingerprint (fingerprint Certificate). That is to say, before obtaining the map API Key, you must use the keytool provided by Java JDK to generate an MD5 fingerprint. (Does sun have long known that
Your project has the need to get the coordinates of the current click or to get information about the current street.Estimate this for the novice, or is more troublesome, because from the official internet to find this is not very easy to find, to look for a long time, good luck may be found in a sudden.Give yourself a test case. The code is as follows:注意: Please introduce yourself to the local jquery, because to use the AJAX request, Google's geo-service interface.The core of the code is the UR
In, I wrote an offline Google Maps API Development Kit (GMAP can be developed without a network). Later, liongis reorganized a new package, even an offline package of V3. Today, on the basis of liongis, I have reorganized and released an offline Development Kit for you. Compared with the liongis offline package, I only upgraded the version from 3.4.x to 3.8.2, th
In the case of non-external network, we call the Google API can not load the phenomenon of the map, you can change the domain name try maybe just fineFor example, my own access to the API is always written like this:Https://maps.googleapis.com/maps/api/js?key= ... sensor=tru
Implementation of Google Maps API encoding line algorithm
In the secondary development of Google Maps API, we encountered the encoding line algorithm problem through gpolyline. fromencoded can effectively improve the rendering s
Effect (new Firefox test):
Code:
Google Maps JavaScript API v3 (reference documentation): Https://developers.google.com/maps/documentation/javascript/basics
Reference document of Baidu Map API: http://developer.baidu.com/map/jsmobile.htm
Google Maps calls API independent files for display, but it cannot be displayed after being added to its homepage! One of my Google map codes can be opened by running them on the server, but it cannot be displayed after the code is added to the default homepage of ecmall2.3 .. There was a blank space. I found a classma
As you know, Google Maps is more and more popular around the world. Is it possible to integrate Google Maps into my MapGuide Enterprise Fusion viewer as base map? Yes, it is!
As MapGuide Fusion viewer uses a subset of OpenLayers, it allows us to access to the underlying OpenLayers
During personal space project development, modules on the page can drag and drop their positions freely. The module named "" contains an instance of a Google map object. We use the API service provided by Google Maps V3.
During the drag and drop operation on its container, in IE7, a bug occurs: the map block is overwr
The source code is as follows:
The first two scripts in this Code point to the Services released by Google map API and ArcGIS online. With these two scripts, you can call the objects and methods in Google map. From the second ESRI script, it seems that a lot of code is used, so it may be difficult to use your own ArcGIS Server to publish a similar service, I do
your own database.ExampleJQuery Location SelectorThe location selector plugin makes it easy to find and select a location on a Google map. Provides a central location and radius, and it can also select an area. All data can be automatically saved to any HTML INPUT element, or it can be processed by JavaScript.ExamplePlanetary.jsPlanetary.js is a JavaScript library used to build great interactive Earth. It uses D3 and Topojson to transform and render
extends:http://blog.csdn.net/qduningning/article/details/44778751
Due to the public to do well-known reasons in the domestic use of Google Maps is not very convenient, in the development if the direct use will have some problems. But the domestic such as Baidu Map, gold map, etc. can not provide detailed map data abroad, so study it,,,
Using Google
When talking about the default control and gmap2 settings on the map, I mentioned the Google map local search bar control. It is very easy to add this control to the map, you do not need to call gmap2.addcontrol (). You only need one sentence:
Map. enablegooglebar ();
In this way, you can add this search box in the lower left corner of the map and replace the original Google logo image.
Currently, you can u
Comments: Today, we will use html5 geolocation in combination with google maps to develop a small application. If you are interested, may you kindly advise me to develop a small application using html5 geolocation in combination with google maps. The api address for
maps. The leaflet is designed to be simple, high performance and very good to use. It's out-of-the-box and works very efficiently on all major desktop and mobile platforms, although it absorbs a bit of modern browser HTML5 and CSS3, but can still run on older browsers. Example
Leoxu Translated 2 days ago 0 people top top Good translation!
jQuery store locator This jQuery sucks, it uses the nbs
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