Manual/PartII/Gesture System
Wikipedia，自由的百科全书
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Gesture system手势系统
The Gesture system is designed as an alternate way of entering different transform modes. The tool is designed to figure out what mode to enter based on a hand-drawn gesture. There are three gestures the tool recognizes:
- Scale
- Translate
- Rotate
手势系统是一个完全不同的变换模式。这个工具是为了方便手绘姿势的输入而开发的。 如下三种手势可以被识别：
- 缩放
- 平移
- 旋转
Scale|缩放
To activate Scale mode draw what appears to be a V shaped curve using the LMB. (Example Scale gesture) is an example of a hand-drawn V. It doesn't have to be exact but the closer and sharper it is the better the tool will understand. If the V has some roundness in it it most likely will be interpreted as a request for Rotate mode.
要激活缩放模式，用 LMB画一个类似v字型的线。不需要很精确，但是还是应该画得比较有型些。好让系统识别。如果太圆了，就可能被识别成旋转模式
Rotate|旋转
To activate Rotate mode draw what appears to be a C shaped curve using the LMB. (Example Rotate gesture) is an example of a hand-drawn C. It doesn't have to be exact but the smoother the curve the better the tool will understand. If the C has a sharp corner in it it most likely will be interpreted as a request for Scale mode.
激活旋转模式，用鼠标左键就画一个c。同样不需要很精确。但是那个弯太尖的话，系统就有可能认成缩放模式。
Translate|平移
To activate Translate mode draw what appears to be a - or line using the LMB. (Example Translate gesture) is an example of a hand-drawn -. It doesn't have to be exact but the straighter the line the better the tool will understand. If the - deviates to much from a straight line it most likely will be interpreted as a request for either Scale mode or Rotate mode.
用鼠标左键画一个“一”字就能激活平移模式。当然要画得符合一个手写体的“一”。不要有太大偏颇。不然系统就会误认为是旋转或者缩放。
Transform modes|变换模式
The Gesture system can also be used while in a particular Transform mode. For example, while in Grab mode, to pre-select a translate axis prior to clicking the MMB you can use move the mouse in a linear fasion in alignment with one of the global coordinate axes and then click the MMB. 手势系统可以做一些特别的变换模式。比如，在平移时，用鼠标中键选择一条轴，这样你移动的时候就可以对齐一条全局的坐标轴。然后再点鼠标中键取消。
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