VGA改变扫描起始地址实现多踪曲线快速滚动技术

VGA Multi-Curve Fast Panning Technique

提出一种利用VGA显示卡可改变显示帧存扫描起始地址使图像移位的原理实现多踪曲线快速滚动。由于它没有重复生成—清除—再生成曲线这种耗时的过程,速度可以非常快。

VGA card possesses the function of changing scan address register's contants to shift the graph on CRT.Which can be used to fast generate multi-curves panning(shift horizontally) on screen without the procedure of repeatedly forming curve in dot and deleting curve in dot, so the process speed must be very high.