1. Angularjs2

  • 1.1. Angular 2 tutorial

    Angular2 is an open source JavaScript library maintained by Google to assistsingle-page applications. Angular2 is an ...
    2025-10-25 13:32:29 UTC
  • 1.2. Angular 2 JavaScript environment configuration

    In this section, we will show you how to configure the execution environment of Angular 2. This chapter uses JavaScript to...
    2025-10-25 13:32:29 UTC
  • 1.3. Angular 2 TypeScript environment configuration

    This chapter uses TypeScript to create Angular applications, which is also officially recommended, and the examples of this ...
    2025-10-25 13:32:29 UTC
  • 1.4. Angular 2 architecture

    The Angular 2 application mainly consists of the following eight parts: 1.Modules 2.Components 3.Templates 4...
    2025-10-25 13:32:29 UTC
  • 1.5. Angular 2 data display

    In this section, we will show you how to display data on the user interface in three ways: Display the properties of a c...
    2025-10-25 13:32:28 UTC
  • 1.6. Angular 2 user input

    When a user clicks a link, presses a button, or enters text, the interaction of these users will be triggered. DOM event...
    2025-10-25 13:32:29 UTC
  • 1.7. Angular 2 form

    In this section, we will show you how to build an Angular form using components and templates. Using Angular templates, we...
    2025-10-25 13:32:28 UTC
  • 1.8. Angular 2 template syntax

    We have touched on the templates of Angular in the previous chapters, and in this article we will cover the syntax use of An...
    2025-10-25 13:32:29 UTC

Principles, Technologies, and Methods of Geographic Information Systems

 102

In recent years, Geographic Information Systems (GIS) have undergone rapid development in both theoretical and practical dimensions. GIS has been widely applied for modeling and decision-making support across various fields such as urban management, regional planning, and environmental remediation, establishing geographic information as a vital component of the information era. The introduction of the “Digital Earth” concept has further accelerated the advancement of GIS, which serves as its technical foundation. Concurrently, scholars have been dedicated to theoretical research in areas like spatial cognition, spatial data uncertainty, and the formalization of spatial relationships. This reflects the dual nature of GIS as both an applied technology and an academic discipline, with the two aspects forming a mutually reinforcing cycle of progress.