# 介面最適區域 UI Zone

## 前言

介面最適區域(UI Zone)是綜合[人眼視覺能力](/researchonvrui/ergonomic-issues/jie-mian-zui-yu/ren-yan-kan-neng-li.md)、[手部操控能力](/researchonvrui/ergonomic-issues/jie-mian-zui-yu/shou-bu-cao-kong-neng-li.md)與[設備限制](/researchonvrui/ergonomic-issues/jie-mian-zui-yu/xian-zhi.md)之三項考量而規劃出在VR三維世界中適合放置UI的範圍。此UI Zone 幫助設計師在規劃UI佈局時既符合硬體設備之條件，同時避免造成使用者視覺、操作之疲憊與不適。

{% hint style="info" %}
詳細人因要素與設備限制可於下節中查看
{% endhint %}

## 水平UI Zone

![](/files/-MYhDXUpD-8zABRqdF2t)

| 範圍                       |                       區域                      | 備註                         |
| ------------------------ | :-------------------------------------------: | -------------------------- |
| <p></p><p>±60°（110°)</p> |   <p></p><p>雙眼水平視場 </p><p>Horizontal FOV</p>  | <p></p><p>頭、眼固定不轉動</p>     |
| <p></p><p>0°\~±30°</p>   | <p></p><p>主要訊息區  </p><p>Main Subject Zone</p> | 放置最高階層訊息                   |
| ±30°\~±60°               |   <p>次要訊息區 </p><p>Secondary Subject Zone</p>  | 放置次高階層訊息                   |
| ±60°\~±85°               |   <p>延伸訊息區 </p><p>Extended Subject Zone</p>   | 脖子舒適轉動幅度為25°\~30°          |
| ±85°\~                   |                    不適合放置介面                    | HMDs使用者不喜歡在非必要下進行脖子轉動 \[1] |

\[1] Fröjdman, S. (2016). USER EXPERIENCE GUIDELINES FOR DESIGN OF VIRTUAL REALITY GRAPHICAL USER INTERFACES controlled by head orientation input. Retrieved from <https://www.diva-portal.org/smash/get/diva2:939381/FULLTEXT01.pdf>

## 垂直UI Zone

![](/files/-MYhDdKxk5eicnUjG49h)

{% hint style="info" %}
由於顯示器的重量讓使用者抬頭不易，建議將介面放在正常視野範圍內。
{% endhint %}

**站立情境**

| 範圍                    | 區域                                     |
| --------------------- | -------------------------------------- |
| -10°                  | 正常視線(normal line of sight)             |
| 25°\~-30°             | 垂直介面合適區域                               |
| -20°                  | 最佳放置介面處                                |
| 0.75m\~1m , 25°\~-30° | 最佳直接互動區域(Best Direct Interaction Zone) |

![](/files/-MYhDpEZOGjcXDaC341E)

**坐下情境**

| 範圍                            | 區域                                     |
| ----------------------------- | -------------------------------------- |
| -15°                          | 正常視線(normal line of sight)             |
| -15°\~-50°                    | 垂直介面合適區域                               |
| 0.75m\~1m , 20°\~table height | 最佳直接互動區域(Best Direct Interaction Zone) |

## **深度UI Zone**

![](/files/-MYhDkQLTYRBltVCkKNN)

| 範圍          | 區域                               |
| ----------- | -------------------------------- |
| \~0.75m     | 不適合放置介面 No-No Zone               |
| 0.75m\~3.5m | 介面合適放置位置                         |
| 0.75m\~1m   | 可直接操控區域 Direct Manipulation Zone |
| 1m\~3.5 m   | 遠端操控區域(Remote Control Zone)      |
| 2.5m        | 長時間注視之介面放置處                      |

註：以Oculus Rift CV1 作為規格參考

##

參考資料：

1. Oculus. (2015). Navigating New Worlds: Designing UI and UX in VR\[Presentation]. Retrieved from <https://www.youtube.com/watch?v=braV_c4M8oI>
2. Alger, M. (2015). Visual Design Methods for Virtual Reality. Personal Website, (September), 98. Retrieved from <http://aperturesciencellc.com/vr/VisualDesignMethodsforVR_MikeAlger.pdf>


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