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A study of line reduction methods for interactive computer mapping

By Smith Peter


With the increasing availability of powerful graphics workstations, interactive computer mapping systems are becoming more and more popular. The art of map making is thousands of years old and much is still relevant, However, with the new electronic media and interactive usage come new problems. One important problem is this context is associated with map generalization. Generalization involves the removal of irrelevant or excessive data and basĀ· the goal of achieving the greatest possible clarity of meaning, good legibilty and simplicity [ref IMH82]. In the past, map generalization has been manual, relying mainly on the knowledge, experience, and intuition of the individual cartographer. In the interactive environment generalization must be automated - features appearing and disappearing as dictated by scale. As generalization lacks a clear underpinning theory there is still much work to be done in this field. This report is mainly (because of time limitations), but not whoJly, to do with one aspect of generalization - line reduction. Several line reduction methods are intoduced, and a study is made of their relative effectiveness

Topics: Field of Research::08 - Information and Computing Sciences::0801 - Artificial Intelligence and Image Processing::080103 - Computer Graphics
Publisher: University of Canterbury
Year: 1987
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