三度空間互動式旋轉圖型模組化設計在網路教學上的應用使用Java語言

The Modeled Design Suitable for 3D Interactive Circumrotate Graph in Web Teaching-Use Java language

10.29495/CITE.200707.0039

林建仲(Chien-Chung Lin)；林金池(Chin-Chih Lin)；賈蓉生(Thoung-Sheng Chia)

3D ； 景深 ； 法線 ； 光影 ； Field Depth ； Light ； Different angle ； network ； 3D ； N line

科技教育課程改革與發展學術研討會論文集

2006期（2007 / 07 / 01）

39 - 46

繁體中文

3D繪圖要件主要考量1.距離遠近景深－距離遠，感觀實體物件小；距離近，感觀實體物件大。當兩件重疊時，顯示距離近者；遮蓋隱藏距離遠者。2.深淺光影－立體各面反射光線的角度不同，以致明暗深淺不同。3.左右眼影像差異－觀看同一實體物件，左右眼將同時看到大部份相同的影像，但也有某小部份是左眼可看到，而右眼看不到；或是右眼可看到，而左眼看不到的。 3D圖像之繪製，是將物件各點的立體座標(x,y,z)，投影到只有二維空間之平面座標(x',y')如螢幕、相片、紙張等。因為螢幕上的圖案無法只從左眼觀看，而不從右眼觀看到。這也就是為什麼螢光幕上的立體圖像總是不如真實物件那麼清晰立體。因此，本3D圖像繪製研究目的之一，在研究如何盡力維護上述三要件中的項目(1)與項目(2)的條件，達到立體旋轉的效果。 有關3D繪圖應用多數使用既有的套裝軟體，無法親自設計及應用3D繪圖在自己的教學領域及實務上發展上。本研究另一目的在從基礎學理切入進行深度剖析3D動態繪圖，並以Java語言，建構立體圖型模組雛型，利用網路操作及解說，讓有意應用本研究成果的教師可輕易將本研究成果融入各相關課程教學領域。

All the physical objects in the university are certainly in 3D shapes. But, it is not certainly for us to see them as 3D images. We can see those objects as 3D shapes if the circumstance satisfies the following conditions: (1) The background of images is in field depth; (2) Objects reflex different amount of light; and (3) The images of objects are caught from different angles of our two eyes. When the 3D objects are drawn as the 2D pictures over a paper, it is the moment to change the 3D(x, y, z) to the 2D(x', y'). This time, we can hold the conditions (1) and (2) but not (3). That is the reason we can't see an image in paper as clearly as the real physical object. With regard to the existing software package that are generally applied to 3D drafting, and the disabilities for designing and applying 3D drafting personally in teaching field and the development of practice for teachers. Another purpose of the research is to (1) conduct a deeper analysis for 3D drafting by starting from basic theory. (2) use Java language to build a 3D graphic model. (3) take the advantages of web operation and exposition to let teachers who incline to adopt the result of research can easily apply it in related program teaching field.