计算机图形数据处理技术

DATA PROCESSING OF GRAPHICS ON COMPUTER

采用按位分段的方法存储数据，并合成组合数据。对不同精度的图形数据选择不同的分段技术，压缩图形数据的存储量。组合数据的分解采用Ｃ语言的“位移运算”和“与运算”，可以加快计算速度，该方法已应用在ＳＵＮ－３工作站矢量汉字系统和ＡＰＰＬＥ－Ｉ微机矢量汉字系统中。

This paper presented a method for accessing data of drawing on computer.Thecomposite data can be made with a part of segment according to bits,The different means ofsegment is selected according to thc different precisions Qf graphic data,and the accessquantity of data can be decreased.The resol ution of composite data is made by means of“BitShit operation,and“And operation”with C Language to speed up the opertion.The methodhas been appl ied to the vectorial ideographic system in Sun-3 workstation and APPLE -II&computer。