LightHouse-UESTC/Code/triad_openvr/README.md

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# Triad OpenVR Python封装库
这是一个增强的OpenVR的封装库对比现有的一些较为完善的库如 [cmbruns](https://github.com/cmbruns)开发的 [pyopenvr library](https://github.com/cmbruns/pyopenvr)。Triad OpenVR Python 封装库是为了更加简便的方式去使用python处理SteamVR跟踪系统的数据。
## 一、使用样例
通过python获取SteamVR的手柄的位置并绘制在Figure上示例代码如下
```python
import triad_openvr as vr
import pylab as plt
v = vr.triad_openvr()
data = v.devices["controller_1"].sample(1000,250)
plt.plot(data.time,data.x)
plt.title('Controller X Coordinate')
plt.xlabel('Time (seconds)')
plt.ylabel('X Coordinate (meters)')
```
![Example plot of captured data](images/simple_xcoord_plot.png "Example Plot")
## 二、配置文件
config.json的作用是通过序列号识别设备以便为同一物理设备保持相同的名称。为了使其正常工作只需在'config.json'文件中更改序列号和名称。以下是一个配置文件的示例:
```
{
"devices":[
{
"name": "hmd",
"type": "HMD",
"serial":"XXX-XXXXXXXX"
},
{
"name": "tracking_reference_1",
"type": "Tracking Reference",
"serial":"LHB-XXXXXXXX"
},
{
"name": "controller_1",
"type": "Controller",
"serial":"XXX-XXXXXXXX"
},
{
"name": "tracker_1",
"type": "Tracker",
"serial":"LHR-XXXXXXXX"
}
]
}
```