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Pottery Wheel Throwing Using Leap Motion Controller 以 Leap Motion 操作的拉坯 模型

Pottery Wheel Throwing Using Leap Motion Controller 以 Leap Motion 操作的拉坯 模型 Advisor: Shing-Min Liu Member: 張家銓、孫昕霈、蘇郁翔、邱彥鈞 Department of Computer Science and Information Engineering, National Chung Cheng University, Taiwan. Introduction

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Pottery Wheel Throwing Using Leap Motion Controller 以 Leap Motion 操作的拉坯 模型

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  1. Pottery Wheel Throwing Using Leap Motion Controller 以Leap Motion操作的拉坯模型 Advisor: Shing-Min Liu Member: 張家銓、孫昕霈、蘇郁翔、邱彥鈞 Department of Computer Science and Information Engineering, National Chung Cheng University, Taiwan Introduction 本專題建出一個拉坯模擬系統，可以用手指來即時操作的拉坯立體模型。主要概念是在以Bullet建構的物理環境中,生成一個柔性物質的Mesh模型當作坯體，並且以「擴增實境」的技術，把該模型呈現在某個限定的區域。偵測手部動作則是使用leap motion這個新產品。當使用者擺出手勢，mesh模型就會合理的受力及型變，進而達到模擬手拉胚的效果。 Methodology 為了模擬將陶土放置在旋轉的轉盤上，開始操作陶土的這些過程，我們設計出一套模式能同時旋轉陶土並進行受力的形變計算。 每個frame刷新的同時，利用旋轉函式將坯體旋轉一定角度，能達到旋轉的視覺效果。接著，便開始將手指與手掌的力作用於這個旋轉的坯體，此概念為計算坯體節點與指間(或手掌)的直線距離，假如該距離在偵測範圍內(指尖寬度以及手掌面積)，則對節點產生適當的物理變化；如此一來，便能模擬轉動過程中操作胚土的互動行為。 • Development tools • Visual studio 2010 • Bullet Physics 物理引擎 • Leap motion SDK (Software Development Kit) • Artoolkit擴增實境 LEAP指尖和手掌向量示意圖 Result Flowchart 坯體模型建立 基本手勢 完成品範例 以AR技術顯示於真實世界 使用者操作 Leap Motion 偵測並回傳手部資訊 中央凹陷 高腳杯 物理型變計算 更新顯示結果 Components 托高 盤子 壓平 桶子 使用者 使用情景 Bullet物理引擎物件 Artoolkit擴增實境應用

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