机载电子综合显示系统图形反走样技术的研究

【作者】 舒若；

【导师】 张焕春；

【作者基本信息】 南京航空航天大学 ， 测试计量技术及仪器， 2003， 硕士

【摘要】 机载电子综合显示系统中，图形显示占据重要的地位。由于飞行状态复杂，座舱内画面显示要求动态、实时、清晰。而硬件系统采用的是光栅图形显示，字符和线条的旋转受光栅扫描显示器的限制存在走样现象，不处理的话将影响显示效果，甚至难以辨认。本文在上一届研究生研究的基础上，在图形生成算法上加以进一步改进，提高了图形质量和显示速度。 本文基于Bresenham算法，依据直线的对称生成原理，提出了一种新的直线快速反走样技术，对罗盘字符的反走样算法做了进一步的论述，编制了全罗盘画面的程序。并结合计算机动画技术，在计算机上进行了罗盘旋转的仿真。更多还原

【Abstract】 The graphics display plays more and more important role in the Electronic Flight Instrument System. The complex situation of flight requests that the graphics display of cockpit must be dynamic,real-time and legible,But in the raster graphic display system,scale lines and character will be distorted seriously owe to the limit of the display of CRT,which affects the display quality. The thesis based on the research of the last graduate student makes further research on the graphics creating arithmetic which makes the quality and the speed of display improved.Based on Bresenham’s algorithm,the thesis gives a fast technique for drawing anti-aliased straight line according to the symmetry of the straight line, dissertates the arithmetic of antialiasing the compass small character and offers the program of the compass picture. At the same time,the rotation of the compass is imitated according to the technology of computer animation.更多还原