The present invention relates to a parametric modeling method for a traditional Korean building tile roof. The method includes the steps of: selecting reference points on a neck structure of the traditional Korean building tile roof; setting the reference points as base points of the tile roof; generating a background surface of the tile roof by connecting the base points; dividing the background surface of the tile roof; and arranging tiles on the divided background surface. The present invention can generate the background surface of the tile roof by selecting the reference points on the neck structure of the traditional Korean building tile roof and selecting the reference points as bas points of the tile roof, thereby enabling automatic tile roof design and free variation of the tile roof shape.
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