我得到pt1,我想从pt1得到pt2,用于打印窗口选项:
- ; get the plotting area
- (setq pt1 (getpoint "\nSelect Lower Left Hand Corner of Plotting Area: "))
- (setq x1(+30 car pt1))
- (setq x2(+40 caddr pt1))
- [color="#f4a460"](setq pt2 (x1 x2))[/color]
- (command "-plot" "Y" "" "D2F.PC3" "" "" "" "" "Window" pt1 pt2 "Fit" "Center" "" "" "" "" "" "" "" )
但我知道pt2错了,怎么纠正呢? |