5. Perl

  • Socket, also known as “sockets”, applications usually send requests to or reply to network requests through “sockets”,...
    2023-12-18 23:00:02 UTC
  • There are two different implementations of object-oriented programming in Perl: One is based on th...
    2023-10-20 23:00:03 UTC
  • In this section, we will introduce you to the connection to the Perl database. In Perl 5 we can use the DBI m...
    2023-10-25 23:00:04 UTC
  • 5.44.1. What is CGI? # CGI is currently maintained by NCSA. NCSA define...
    2023-10-20 23:00:03 UTC
  • Each package in Perl has a separate symbol table, which defines the syntax as follows: package mypack; ...
    2023-10-20 23:00:03 UTC
  • You can create processes in different ways in Perl. This tutorial will discuss the management of some process...
    2023-10-23 23:00:04 UTC
  • POD (Plain Old Documentation) documents can be embedded in a module or script in Perl. POD is a simple and ea...
    2023-10-20 23:00:03 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.