We used AutoLISP language to compile BXH.LSP (label serial number), which solves the above problems well. This program adds a BXH command to AutoCAD, which can easily mark the serial number in the drawing, and it is also very convenient to modify or delete the label , Work efficiency has increased more than ten times. According to the compilation principle of this program, it can be deduced to use the procedures such as marking the serial number on the mechanical drawing and marking the welding symbol.
The source program of BXH.LSP is as follows:
; ---------------------------
(defun C: Bxh (/ p1 p2 p3 1 ang 1 bx bxh radi txth); standard number (setq radi 5); circle radius (setq txth 5); word height (if (not bx) (setq bx 1))
(setq p1 (getpoint "please select the starting point:")); select a point on the part (setq p2 (getpoint "please select the second point or enter to indicate that there is no second point")); point at the marked position (setq bxh ( geTInt (gstr "Please enter the serial number" bx))); serial number (if bxh (setq bx bxh))
(cond (p2
(command "layer" "set" 2 ""); Change to draw thin line layer (setq ang 1 (angle p1 p2))
(setq p3 (polar p1 ang (-(distance p1 p2) radi))); draw circle, line (command "pline"
(polar p1 ang 1 0.25)
"w" 0.5 0,5 "A" "CE" p1 "A" 359.9 "L" "W" 0 0 p3 "")
(command "circle" p2 radi)
(command "layer" "set" 6 ""; change to write text layer "text" "J" "M" p2 txth 0 bx); write text)
((not p2); if it is directly marked in the part (command "layer" "set" 2 ""); change to draw a thin line layer (Command "circle" p1 radi); draw a circle (command "layer" "set "6" "; change to write text layer" text "" J "" M "p1 txth 0 bx); write text)
)
(setq bx (+ bx 1))
(princ)
)
; -----------------------
To use the program, at the Command: prompt, type (Load "BXH"), press Enter, and then type BXH, and then follow the on-screen prompts to enter the corresponding items. Because this command is often used, it is recommended to install it in the menu file and add an item in the appropriate location of ACAD.MNU:
Standard serial number] ^ c ^ c (LOAD "BXH"); BXH; It is most convenient to click with the mouse
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