数控切割软件中TrueType字体的提取和处理

Pick-up and Disposal of TrueType Font in NC Plasma Cutting System

由于TrueType字体丰富的字形表现样式,所以在切割软件中被广泛使用。首先介绍了TrueType的数据结构和字形描述,通过调用Windows系统的API函数,从具有丰富资源的字库中提取矢量字符;然后,采用折半分割Bezier曲线算法求出字体环的交点,利用交点实现字体的交叉处理。

Because of the rich performance of TrueType font ,so it is Widely used in the software of cutting system. Firstly,the paper introduces the TrueType font and the data structures. By calling the Windows API functions,the character models can be gotten from the font library. Then,by using half segmentation algorithm of Bezier curves,the intersection point of font-loop is obtained, which helps us to handle the cross-loop font successfully.