Abstract
 Scale-Dependent Rendering with Knowledge Base Track: Cartography and Map Production Author(s): Jinmu Choi The geometric representations of geographic features are mostly dependent on the visual scale. A building may be a point in a small scale but a polygon in a large scale. This paper describes a methodology that allows a scale -ependent rendering with a symbol knowledge base. To render features at a particular scale, we first specify scale ranges and symbol rules for each feature and then store them in a symbol knowledge base. The main contribution of the paper is an algorithm for feature geometry reconstruction based on the scale for adequate symbolization. Another useful methodology is the use of knowledge base for symbolization that can be accumulated and adapted for various mapping applications. Jinmu Choi Mississippi State University Geosciences PO Box 5448 Mississippi State , MS 39762 US Phone: 662-325-5803 Fax: 662-325-9423 E-mail: jc778@msstate.edu |
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