摘要
光栅扫描显示器的屏幕是由位置固定的、离散的象素点所组成的。因而在其上生成的曲线只能是实际曲线的某种近似表示，并不是很美观的。例如有曲线的阶梯效应及曲线亮度不均等问题。该文说明利用多灰度光栅显示器可以在一定程度上解决这些问题，并且用给出的这些算法绘制曲线时，可以较好地解决上述问题。这些算法在动画制作中也可有典型的应用。
By means of microseismic modulate ratio method,the review and summary on the moderately strong earthquakes that occurred between 1970 and 1991 in Shanxi area have been made It is showed that the anomalies of Rs (the anomalous frequency of microseismic modulate ratio)in double district will occur before 4～5 years of M5 0 or so in Shanxi area,and 10 years of M6 0,and the phenomenon of periodic fluctuation aggravating will occur before 3 years or so of moderately strong earthquakes,the period will be 1 year
出处
《计算机工程与设计》
CSCD
北大核心
1997年第4期60-64,F003,共6页
Computer Engineering and Design
