Brief Preface
There are some fatal steps to make the Google map working. First of all, add a reference of Google Maps API in the head element:
Second, make the code run while page loading:
As you see, the last sentence code is most important. to initialize the object Map need two parameters, one is a HTML element which used to be a DIV, the other parame
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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
Recently made a project to use offline Google Maps development, and now Google Maps in China's development is not very perfect, resulting in the project is not decided.Later, a map plugin Mymapw.ocx was used to perfectly solve the drawbacks of WinForm form in which webbrowse write JScript is not to be loaded.At present
This article is an example of how PHP uses Google Maps. Share to everyone for your reference. Specifically as follows:
The PHP code is as follows:
Copy Code code as follows:
function selected ($param, $value) {
if ($param = = $value) print "SELECTED";
}
# Collect Any form data to control the display
$scale = 10;
$maptype = "G_normal_map";
if ($_request [scale]) $scale = $_request [scal
In order to successfully apply for the android map API key, you must prepare a Google account and System Certificate. Generally, Google accounts are required to publish keys on Google. Google accounts are common and Gmail accounts are acceptable. A program must be issued with a certificate. The certificate is actually
Copy Code code as follows:
var request;
var distancearray = [];
function Getdistance () {
Distancearray = [];
var directionsservice = new Google.maps.DirectionsService ();
for (var a = 0; a for (var b = 0; b if (a!= b) {
request = NULL;
Request = {
Origin:pointsarray[a],
DESTINATION:POINTSARRAY[B],
TravelMode:google.maps.DirectionsTravelMode.DRIVING,
UnitSystem:google.maps.DirectionsUnitSystem.METRIC
};
Directionsservice.route (Request, function (response, stat
Each image in Google Maps and Google Earth has a URL, for example, the address of our school map is http://kh.google.com/kh?v=3t= TRSTRQQRSSTTTQTSS (this is the URL of the graph)The variable v=3 in the URL represents the projection algorithm of the satellite graph using the Mercator projection algorithm, v=2 represents another algorithm (no longer supported)varia
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 to mark. All markup rendered by Directionsrend
This article mainly introduces how js + html5 obtains geographical location information of users and displays it on Google maps. It involves html5 element operation skills, for more information about how to obtain users' geographic location information and display it on Google Maps, see examples in this article. Share
Today in the collation of documents, found that there is also a Google Map download assistant-smart version, is written in C #. Check their official website, it seems a long time no update, it may be collapsed.I put. NET program hack is divided into three stages: software analysis, from the use of software to analyze the limitations of the function, that is, to provide clues to the next step, code analysis, analysis. NET code or IL code, looking for k
Recently made a project to use offline Google Maps development, and now Google Maps in China's development is not very perfect, resulting in the project is not decided.Later, a map plugin Mymapw.ocx was used to perfectly solve the drawbacks of WinForm form in which webbrowse write JScript is not to be loaded.At present
To display Google Maps on the android client, you need to use Google's API. This time, Google is directly used instead of the android SDK. Because there is no detail, how many differences are there between them, it is not clear yet. Wait for a while and take a closer look. The view shown on the map is:Com. google. andr
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, this should be the latest package at the presen
In simple positioning of Android Google Maps (1), we have obtained world maps. In fact, we have a lineCodeI haven't written it yet. If I add some code in mainactivity, we can simply locate it ~~~
1,Source code(The code is added on the basis of the previous code, if you do not know how to get the world map, see the http://blog.csdn.net/woshishuoshuoa/article/deta
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 maps
Recently, when I made a map, I thought about the color scheme and thought it was hard to see the color. So I learned from Google and opened the maps. google. com or local. google. com, the figure inside is really pretty nice. The screenshot method is used to obtain the map color using Photoshop software. After looking
Mappy.js is a jquery based map plugin, and let's look at how to use it.
Preparatory workFirst need to load the necessary JS and CSS files to the HTML page, of course, these files in our download package has been packaged, please feel free to download the use.
The code is as follows
Copy Code
Load location dataFirst we want to place a div in the HTML as a map container, and we can define the height and width of the container in the CSS.Now you need to ca
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 Google will make such a thing? Why was this keytool used earlier ?)
Now that th
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