1. Reset the starting point of the closed polyline (lower left, upper left, upper right, lower right)
2. Reset the clockwise direction of a closed polyline
(defun c:xdtb_plreset (/ bb corner left-up pts ss val x)
(if (not #xd_var_global_polyline_mode)
(setq #xd_var_global_polyline_mode 1)
)
(xdrx_initget "0 1 2 3")
(if (setq val (getint (xdrx-string-formatex
(xdrx-string-multilanguage "\n多段线起点[左下(0)/左上(1)/右上(2)/右下(3)]<%d>:" "\nPolyline starting point [lower left (0)/upper left (1)/upper right (2)/lower right (3)]<%d>:")
#xd_var_global_polyline_mode
)
)
)
(setq #xd_var_global_polyline_mode val)
)
(if (not #xd_var_global_polyline_clockwise)
(setq #xd_var_global_polyline_clockwise 1)
)
(xdrx_initget "0 1")
(if (setq val (getint (xdrx-string-formatex
(xdrx-string-multilanguage "\n时针方向[逆时针(0)/顺时针(1)]<%d>:" "\nClockwise direction [counterclockwise (0)/clockwise (1)]<%d>:") #xd_var_global_polyline_clockwise
)
)
)
(setq #xd_var_global_polyline_clockwise val)
)
(if (setq ss (xdrx-ssget (xdrx-string-multilanguage "\n选择要处理的封闭多段线<退出>:" "\nSelect closed polylines to process <Exit>:")
'((0 . "*polyline") (-4 . "&=")
(70 . 1)
)
)
)
(progn
(setq bb nil)
(mapcar
'(lambda (x)
(setq pts (xdrx-getpropertyvalue x "vertices")
corner (xdrx-points->4corner pts)
left-up (nth #xd_var_global_polyline_mode corner)
)
(setq bb (cons x bb))
(xd::polyline:resetstartpoint x left-up)
(cond
((and
(= #xd_var_global_polyline_clockwise 1)
(xdrx-curve-direction x)
)
(xdrx-curve-reverse x)
)
((and
(= #xd_var_global_polyline_clockwise 0)
(not (xdrx-curve-direction x))
)
(xdrx-curve-reverse x)
)
)
)
(xdrx-ss->ents ss)
)
(xdrx-prompt (xdrx-string-formatex (xdrx-string-multilanguage "\n重设了%d个多段线起点和时针方向." "\nReset starting point and clockwise direction of %d polylines.")
(sslength ss)
)
)
)
)
(princ)
)
