, locating and so on.
The JavaScript code is as follows:
1function Getquadtreeurl_ (lon, LAT)2{3 var PI = 3.1415926535897;4 var digits = 18; How many digits precision5//Now convert to normalized square coordinates6//Standard equations to map into Mercator projection7 var x = (180.0 + parsefloat (lon))/360.0;8 var y =-parsefloat (lat) * pi/180; Convert to radians9y = 0.5 * Math.log ((1+math.sin (Y))/(1-math.sin (y)));11Y *= 1.0/(2 * PI); Scale factor
Map-based application development is a required feature for new mobile devices. To develop a map-based app in Android, Google has provided the Map Library as an additional function. This article describes how to develop a library based on
About this article
Map-based applica
How does ArcGIS Server overlay a small map to google maps or virtual Earth?
I own a factory. Map It is CAD and converted to shape format. Then place the map correctly on the map of Google Maps in Shanghai. online doc
Use Google map API with jquery 1-3
Use Google map API with jquery (1) -- controls and listeners [Post] Use Google map API with jquery (2) -- Annotation, floating window [Post]
Use Google
Google Maps Javascript. API allows you to use Google Maps on your webpage. before using the API, you must apply
API keys. To apply for an API key, go to http://code.google.com/apis/maps/signup.html. Assume that the obtained key is abqiga.
Jquery acquisition is no longer cumbersome here. There are many introductions on the Internet about jquery.
Then we will use jquery and
From: http://logfei.blogspot.com/2008/11/blog-post_18.htmlTo locate a point in a map, the most common thing is to use a geographic coordinate to locate the point. However, Google map API also provides multiple sets of coordinate systems different from geographical coordinates, so that we can use different coordinates to locate the information displayed on the
This document describes how to use the Google Map service. Main reference source: https://developers.google.com/maps/documentation/android/start? Hl = zh-CN. It still takes a long time to connect the simulator and the actual mobile phone. Latest GoogleMaps Android API v2 has integrated the map service into Google Play
Google maps contain UI elements that allow users to interact with maps. These elements are called "controls ". You can combine these controls in Google Maps to set map styles.
The map API has a large number of built-in controls that can be used in the MAP:
Glargemapcontrol
Google Maps JavaScript. API allows you to use Google Maps on your webpage. before using the API, you must applyAPI keys. To apply for an API key, go to http://code.google.com/apis/maps/signup.html. Assume that the obtained key is abqiga.Jquery acquisition is no longer cumbersome here. There are many introductions on the Internet about jquery.Then we will use JQuery and
This section describes how to use Google map on Android phones. We generally use Google map API + location API, that is, map API + status API, if we add some server and network knowledge, we can create very creative applications, and these are the popular lbs, the main techn
configuration is completed at this time, the map will be displayed on the interface, but at this time, make sure that the Google map demo can display the map.
5. Test Google map demo
You can also import the
I used to look forward to the Chinese version of Google Maps in "Application Development and Analysis of Google Maps ".The birth of APIS is expected to create Google map applications for thousands of third-party websites. Today, I accidentally discovered that the Chinese map
When you have a reasonable number of tags, it is common to make Google map tags. However, once you have hundreds or even more targets, your performance quickly begins to decrease. InArticle, I will tell you some ways to improve performance. At the same time, I will put a test page to compare their efficiency.
If you are using Google
I have heard that the Google map API has been made public, but there is no time to read it. Today I have read two articles about this.ArticleI think it's good. I understood something.
Article 1:[Source code] HOWProgramUsing Google map resources Original address: http://bbs.msproject.cn/default.aspx? G = posts t = 20
This is an experiment that I did when I first came into contact with the Google map API last year. I didn't do any further work in the future, but I wrote a draft and kept it in my blog post. Although some ideas are naive, there are even some errors. Today it seems that there are still some reference values, so I will release the draft for you to have a look. The original text is as follows:
0. Descripti
Introduction
Do not know when to start, the map application has been so popular, based on the WEB application of a variety of maps. The most famous is Google Map, Yahoo map, Bing map, and so on, with the highest usage of Google M
Recently, I am working on a mobile phone map. Many things are fresh due to my new contact. I encountered a lot of problems in the meantime. This article solves the primary problem for me. I will repost it here for reference only by developers who have encountered such requirements as I did.
When you have a reasonable number of tagsThe map tag is common. However, once you have hundreds or even more targets,
Google maps are popular and useful in searching for stores or other interesting places we want to know. maps are specially integrated into their websites by some stores so that they can be easily located.
Although it is not easy to integrate, Google Maps are simple and eye-catching. it takes a long and complex process to integrate it on your site. however, thanks to jQuery, which has many practical
Due to work requirements, you need to use the map on the company's website to view Google map APIs over the past two days. Today, I will share with you some of my usage methods:
Demo address: http://www.yaohaixiao.com/code/googlemap%20sample/index.htmProgram code /*
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