基于Vega的视景仿真系统中的人机交互技术

一个先进的仿真系统必须有一个与之相应的高效的人机交互界面.文章主要探讨了在基于Vega的视景仿真系统中中文字符显示和视点旋转这两个技术.结合Vega和OpenGL,利用显示字符位图的方式绘制平面汉字,修正了时下中文字符显示主流技术在显示小字号字符时个别笔划过于纤细的缺点;在文中提出的视点旋转实现方案中,借鉴陀螺仪原理解决了在参照系中视点的姿态稳定问题,并给出了旋转视点的具体方法.该两种技术应用结果表明:使用了这两个方案的仿真系统界面友好,操作方便,极大地增强了系统的试验效果.

Human-Computer Interaction Used in a Scene Simulation System Based on Vega

An advanced simulation system must have a corresponding highly effective HumanComputer Interaction.This paper aims to introduce the methods of displaying Chinese Characters and observer circumgyrating in a scene simulation system based on Vega software.Using Vega and OpenGL,Chinese Characters are drawn on the screen through the use of a characters-bitmap.And in this way,the weakness that individual strokes of the characters displayed by using the mainstream technology of displaying small-size Chinese Characters are too slim is eliminated.As the method referred to in this paper,by using the gyro theory the stabilization problem of observer in frame of reference is resolved,and a detailed scheme is given,too.The result shows that the interface of the scene simulation system using these methods is very friendly and the system is very easy to manipulate.And the test effect is markedly improved when the system uses these methods.