[ARX函数]：关于getOffsetCurves函数的问题

xinxiande

请教大家关于: getOffsetCurves的第一个参数offsetDist具体指的是什么距离.正负值的区别是什么,正常情况下是正值吧!这样的话,如果是偏移一条曲线怎么去区分是往做偏移还是往右偏移啊,在autocad下面offset命令是让用户自己去选择方向的,我如果用程序指定方向,该怎么做呢??
谢谢大家了!

binbin

这是帮助的一段话
If the offsetDist value is negative, it is usually interpreted as being an offset to make a smaller curve (that is, for an arc it would offset to a radius that is offsetDist less than the starting curve抯 radius). If the negative value has no meaning in terms of making the curve smaller, a negative offsetDist may be interpreted as an offset in the direction of smaller X,Y,Z WCS coordinates. This is not enforced, so custom entities can interpret the sign of the offsetDist value however they want.

大概的意思是:如果offsetDist是负的,会产生一条长度下的曲线(如Arc)
如果长度一致,产生一条X,Y,Z较小的曲线,自定义实体就随你怎写都行

xinxiande

我就是这个看不懂啊??能不能说的清楚点啊??