Baidu Maps
 Screenshot of the Sim City-like style that Baidu Maps offers for the city of Shanghai, China. | |
| Type | Web mapping |
|---|---|
| Owner | Baidu |
| Website | Baidu Maps |
| Available in | Chinese |
| Launched | 2005 |
| Current status | Active |
Baidu Maps is a desktop and mobile web mapping service application and technology provided by Baidu, offering satellite imagery, street maps, street view ("Panorama" - zh:百度全景) and indoor view[1] perspectives, as well as functions such as a route planner for traveling by foot, car, or with public transportation. Android and iOS applications are available.
Baidu Maps is available only in the Chinese language and before 2016, it offered maps only of mainland China, Hong Kong, Macau and Taiwan, the rest of the world appearing unexplored.[2] Currently Baidu Maps also offers maps of Thailand, Singapore, Japan and South Korea.[3] Baidu mainly uses map data supplied by NavInfo in Greater China[4](together with MapKing in Hong Kong and Here and LocalKing in Taiwan), and OpenStreetMap in other countries.
History
- September 2005 - Baidu Maps is released
- 2010 - Baidu adds a unique 3D highly detailed view for select cities, very similar to the computer game SimCity.[5] The images are licensed from digital mapping service Edushi.[6] Cities being currently covered include Beijing, Shanghai, Guangzhou and Shenzhen.
- November 2011 - Baidu launches satellite imagery with much better resolution for the Greater China region than Google Maps[7] City-level only includes Beijing, Shanghai, Guangzhou, Shenzhen, Hong Kong, Macao and other major cities.
- September 3, 2012 - at its annual Baidu World event, Baidu reveals 360-degree digital imagery for select buildings[6]
Coordinate system
Baidu Map uses the Mercator projection, with latitude and longitude expressed in degrees, and distances in meters. However, it uses the BD-09 coordinate system, which adds further encryption to the already encrypted national standard in China, GCJ-02[8] (which in turn is offset from the de facto standard around the world, WGS-84).
The Baidu Map API documentation specifies that real GPS coordinates must be converted via a coordinate conversion interface.[9] An HTTP interface, JavaScript API, Android SDK, and iOS SDK are available.
The JavaScript coordinate conversion API is demonstrated online by Baidu, but without any reverse (to GCJ-02) conversion capabilities.[10] Open source implementations in R [11] and various other languages[12] exist.
Street view service
The street view service of Baidu Maps was first launched on August 21, 2013.[13] This is a list of cities supported as of March 11, 2015:
External links
- Baidu Maps
- Baidu Map API example plotting markers with WGS-84, GCJ-02 and BD-09 coordinates
References
- ↑ "Indoor view of Chinese restaurant". Baidu Maps. Retrieved 5 April 2015.
- ↑ "Why do Baidu and Tencent QQ Map(s) only show China, and blank for the rest of the world?". 5 April 2015.
- ↑ "百度地图和支付宝抢在春节前登陆日本". 环球网. 2016-02-01. Retrieved 2016-02-14.
- ↑ Lee, Mark (6 July 2012). "Apple Shares Google China Map Partner in Win for AutoNavi: Tech". Bloomberg.
- ↑ "Baidu beats Google when it comes to mapping". 23 November 2010. Retrieved 5 April 2015.
- 1 2 Millward, Steven (3 September 2012). "Baidu Maps Gets 8-Bit 3D Views, Makes Real Life Feel Like Sim City [UPDATED]". TechInAsia. Retrieved 5 April 2015.
- ↑ Custer, Charlie (6 November 2011). "Baidu Maps Launches Satellite View". TechInAsia. Retrieved 5 April 2015.
- ↑ "Frequently Asked Questions". developer.baidu.com/map (in Chinese). Baidu.
- ↑ "Coordinate Conversion API". developer.baidu.com/map (in Chinese). Baidu.
- ↑ "Conversion from GCJ-02 coordinates used by Google Maps in China to BD-09". Baidu Map JavaScript demos (in Chinese).
- ↑ "A package for geocoding, reverse geocoding and coordinate transformations between WGS-84, GCJ-02 and BD-09 coordinate systems". 15 February 2014.
- ↑ Lee, Googol. "Transform coordinates between Earth (WGS-84) and Mars in China (GCJ-02)".
- ↑ "百度全景：真实世界 百度地图触手可及".
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