Computer Assisted Cartography: Graphics or Geometry?

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Abstract
A classification of interactive graphic systems, currently used to prepare plans and maps in surveying practice, is presented. The first generation of systems are graphics editors storing drawings that can be graphically changed and redrawn. A second generation of systems provides the same functionality as the first, but the user can add certain types of information to the graphical elements (e.g., tube diameter or material). The state‐of‐the‐art third generation of systems internally stores models of reality. Drawings and reports produced in varying formats are just operations to make these internal models visible to the user. Such systems can automatically maintain constraints on the model during changes. This classification seems to reflect a very general trend in computer applications toward systems that integrate an increasing amount of knowledge about reality.

This publication has 1 reference indexed in Scilit:

  • MAPQUERY
    ACM SIGGRAPH Computer Graphics, 1982