Subimage motion in a three-dimensional computer graphic system is much easier for the user to control if the subimage moves the same direction as his hand while he manipulates the control device. The implementation of such coordinated motion of hand and subimage implies modification of the normal procedure for calculating transformations. The convenience of such manipulation also depends on appropriate selection or design of the input device.
This paper reviews the relevant attributes of locator devices and presents an approach to selection. It presents the mathematics of transformation nesting and "compensation" to preserve motionsynchrony. Finally, it offers a case history of an interactive graphic system whose human factors were improved by these techniques.
本文回顾了定位器设备的相关属性,并提出了一种选择方法。它提出了转换嵌套和“补偿”以保持运动同步的数学方法。最后,提供了交互式图形系统的案例历史,这些图形系统的人为因素通过这些技术得到了改善。 P>
Three-dimensional computer graphics;
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