以3D視點控制介面呈現可瀏覽之資訊空間

Abstract

就建築設計領域而言，3D模擬環境具有其不可或缺的優點，然而，一般的3D環境瀏覽器雖提供了簡單的瀏覽控制工具，讓使用者得以調整視點，就如同在真實世界中移動位置以及方向一般進行環境的觀察及探索；但在3D構成的環境中，人們常會發現難以掌握自由形體空間的相對關係，以及容易喪失方向感的問題。儘管我們生存在一個由三度空間構成的環境中，真實世界仍包含了許多讓我們得以理解環境的象徵和暗示的資訊，以及行動上的條件與限制是無法在電腦模擬中被正確表現出來的。 要讓使用者在虛擬環境中順利進行空間的瀏覽需要透過良好的使用介面協助，而視點控制是個重要的環節。而在各種型態的虛擬環境應用程式中，針對環境以及使用者的作業需求和目的會採取不同的視點控制方法，這些視點大多是由設計者事先定義，然而在複雜的動態環境下，使用者無法根據環境需要迅速而正確的找到目標。 本研究以建築設計的應用領域出發，透過一個可瀏覽的資訊空間為基礎，針對使用者在空間中所常使用之視點控制模式進行探討，並利用設計者所熟悉的虛擬環境應用程式，建立一個可彈性調整的視點控制介面， 讓使用者得以透過圖形化的操作介面在瀏覽過程中調整所需的視點；同時透過模組化的過程，讓視點控制功能得以移植於其它虛擬環境中供設計者所使用。

As far as the field of Architecture design is concerned，3D simulation is indispensable . However，a general 3D browser provides the user simple navigation tools to adjust viewpoint，just as moving his position and orientation in real world to observing and exploring the environment . But most people are hard to find the relationship in free form space and used to get lost in a 3D world . Though we live in a three-dimensional environment，the real world still contains many cues and metaphors to allow us to realize the environment，and limitations in action can’t be expressed correctly . To navigating in a virtual environment successfully needs fine user interface，and camera control is essential to user interface ..The various virtual environment applications will take different camera control methods to certain circumstances and user’s task. These camera control methods are often predefined by designer. However，the users will hard to find the target rapidly and accurately according to the circumstances in a complex dynamic environment . The purpose of this research is to investigate the camera control modes based on a navigable information space. By using the virtual environment editor which is friendly to designer to develop a adjustable camera control interface，to allow the user to modulate the viewpoint in a navigation process through the graphical user interface. And these camera control functions can be transplant to other virtual environment through a modular development.