本程式庫導入了物件的觀念，並且提供了物件管理的機制，使得開發的過程更為容易，並且可以輕易的用多個景觀視窗來觀察同一個世界。另外，在遠近效果的表現上，特別利用了漸層色及不透明度來增強呈現的效果。 This thesis comes up with a Graphic Library in Java. The purpose that makes users can finish the complex drafting in the short time. First of all, through object-oriented perspective, that supports object management function to make simply during process of developing as well as that easy to observe a world with several views. In addition, we use gradient color and opacity to enhance effect in Depth Cueing.
