COMPLEXITY TRANSFORMATION FOR AN INDIVIDUAL LINEAR FEATURE IN DIFFERENT SCALES TOPOGRAPHIC MAPS

摘要

Cartographic generalization is the method whereby information is selected as represented on a map in a way that adapts to the scale of the display medium of the map. In the way, not all intricate geographical are preserved. In order to create a suitable and useful map to convey as much information as possible to users, the cartographers have to adjust the content within their maps so that strike the right balance between the map's purpose and actuality of the reality. Well generalized maps are those that emphasize the most important map features while still representing the world in the most faithful and recognizable way. The level of detail and important in what is remaining on the map must outweigh the insignificance of items that were generalized. On a map, over 80% of features are line features. Every feature has its own complexity. Usually, more complex feature has more information. Different line features has different importance. When doing map generalization, the less important features are deleted, and the features with more importance are retained. In the retained feature part, some line features are simplified and some ones have no change. Which features can be retained? And how the complexity is simplified? Therefore, the objective of this study is to find out the transformation of complexity in an individual linear feature in different scales maps.