9. Ios

  • 9.34. IOS Audio and Video (Audio & Video)

    9.34.1. Brief introduction ¶ Audio and video are quite common in the latest devices. Adding iosAVFoundation.framewo...
    2025-10-25 13:32:31 UTC
  • 9.35. IOS file processing

    9.35.1. Brief introduction ¶ File processing can not be explained intuitively through the application, we can underst...
    2025-10-25 13:32:34 UTC
  • 9.36. IOS map development

    9.36.1. Brief introduction ¶ IOS maps help us locate locations, and IOS maps use the MapKit framework. 9.36.2. ...
    2025-10-25 13:32:33 UTC
  • 9.37. In-app purchase of IOS

    9.37.1. Brief introduction ¶ In-application purchases are used by the application to purchase additional content or u...
    2025-10-25 13:32:34 UTC
  • 9.38. IOS iAD integration

    9.38.1. Brief introduction ¶ IAD is an advertising platform launched by Apple that helps developers generate revenue ...
    2025-10-25 13:32:34 UTC
  • 9.39. IOS GameKit

    9.39.1. Brief introduction ¶ GameKit is a commonly used framework in iOS SDK. It has three core functions: Intera...
    2025-10-25 13:32:31 UTC
  • 9.40. IOS storyboard (Storyboards)

    9.40.1. Brief introduction ¶ Storyboards is only introduced in iOS5, and when we use Storyboards, the deployment targ...
    2025-10-25 13:32:32 UTC
  • 9.41. IOS automatic layout

    9.41.1. Brief introduction ¶ Automatic layout is introduced in iOS 6.0. only IOS6.0 and later versions are supported....
    2025-10-25 13:32:33 UTC
  • 9.42. IOS-Twitter and Facebook

    9.42.1. Brief introduction ¶ Twitter has been integrated into iOS5.0, while Facebook has been integrated into iOS 6.0...
    2025-10-25 13:32:34 UTC
  • 9.43. IOS memory management

    9.43.1. Brief introduction ¶ The basic idea of memory management under iOS is reference counting, which controls the ...
    2025-10-25 13:32:30 UTC
  • 9.44. IOS application debugging

    9.44.1. Brief introduction ¶ When we do an application, we may make all kinds of mistakes, which can lead to all kind...
    2025-10-25 13:32:32 UTC
《地理信息系统原理、技术与方法》  97

最近几年来,地理信息系统无论是在理论上还是应用上都处在一个飞速发展的阶段。 GIS被应用于多个领域的建模和决策支持,如城市管理、区划、环境整治等等,地理信息成为信息时代重要的组成部分之一; “数字地球”概念的提出,更进一步推动了作为其技术支撑的GIS的发展。 与此同时,一些学者致力于相关的理论研究,如空间感知、空间数据误差、空间关系的形式化等等。 这恰好说明了地理信息系统作为应用技术和学科的两个方面,并且这两个方面构成了相互促进的发展过程。