|
% p, m4 J. V$ J, z- (defun c:lg (/ basepoint len high width amax n a nmax oldosmode)
9 t3 z( ~6 B- o4 h - ;;设置栏杆高度和方钢宽度默认值! {0 J J U' a9 j, [8 h) V
- (if (not lg_high)) O& \" |5 @4 f3 a6 M, d0 J" B
- (setq lg_high 5006 S/ P, W! V3 @
- lg_width 14
4 \0 t* |/ K, x2 e6 {* D$ u - )
5 I/ [/ t( z# G/ B: T - )1 W1 M$ @3 h. o u$ J, A, X
- ;;指定图形插入点
' |8 F; l' A( k' Z - ;;不接受空回车
( h9 g) `* [, @, x1 n/ B6 m9 p - (initget 1) a7 r) B) W/ P9 Q0 ~3 Z1 }7 J
- (setq basepoint (getpoint "\n指定插入点:"))" @ l- O% E; a$ b5 F4 }
- ;;指定栏杆长度和栏杆高度和(或)方钢宽度
: o6 K: B- Q( Z1 F8 d: ~ - ;;当用户指定的栏杆长度小于方钢宽度时图形无解,需要重新指定
. v# c9 M; N/ l- N - ;;用关键字指定栏杆高度和(或)方钢宽度后# z9 J- s, V6 L/ T9 P. z
- ;;需要重复运行指定栏杆长度的代码段
# [# s. u8 x# ~5 ?8 E9 O - (while (not len)& A7 L5 N( S- ?) V. E
- ;;检查是否存在上次指定的栏杆长度,如存在则做为本次的默认值
& h% N; o" X8 X8 n9 W$ p - (if lg_length
\+ {3 o7 z3 O - ;;存在默认值8 Y5 O! v* `2 ~* s& M% b# n" `
- (progn
: B& F$ I9 F, S7 ? - ;;指定栏杆长度接受空回车,不接受0和负数;可输入关键字"H"和"W"5 ^7 r: c! S) W' ^$ B
- (initget 6 "h w")
# j$ O* y4 b3 ~9 J$ O - (setq len (getdist basepoint. K/ e, n- G1 o9 Z+ z$ E2 `2 ]" O
- (strcat "\n指定长度[高度(H)/方钢宽度(W)]<"
) d6 g% L+ h. q0 E) S - (rtos lg_length 2)( V$ G; @- j* V6 H3 Z
- ">:") r8 |- m/ \/ U8 V! d ]
- )
* n& f7 G8 a- k1 ~, R - )
1 z& @9 c% R$ `, Z# a - )+ Z4 p( U) a/ J9 V- e3 U
- ;;空回车时栏杆长度使用默认值( r- K, q8 H ]
- (if (not len)
) t; P, O1 B" ^+ O. P" N _( M* J0 { - (setq len lg_length)
3 A4 V3 o% _9 S - )" g) P/ H" M& @9 y6 ^
- )+ H1 _7 ^3 N( m1 @. u9 r/ j2 V
- ;;不存在默认值% F" E4 ~4 h: C2 P/ a9 Q3 i# O
- (progn
5 P0 g/ Q. s4 k! Z" R( b - ;;指定栏杆长度不接受空回车,0和负数;可输入关键字"H"和"W"
5 I* L7 i6 b3 z8 o7 J' ] - (initget 7 "h w")
, l! E4 C8 v0 r3 J2 y- y9 u - (setq
1 Q3 ^/ R9 k" k! ?1 t6 K - len (getdist basepoint "\n指定长度[高度(H)/方钢宽度(W)]:")
0 g; `: F; d; ^& k - )1 m, \: a( E8 G/ \8 B
- )2 ?2 f0 I2 a1 h( S
- )
! p# j+ [* \1 g - ;;检查用户输入的是长度值还是关键字
1 @# S6 ~ l- c" c: d1 w& P6 m5 M - (if (numberp len)
1 p2 L$ j' J' } - ;;输入的是长度值
- f) p+ C. L, q - (if (< len lg_width)1 b' N h. u' C1 z1 [7 C
- ;;当长度值小于方钢宽度时清空输入值重新指定6 m( D3 \0 g+ Z; D. u
- (progn
6 u+ v, A/ m- M. J# w# [$ Q - (prompt (strcat "\n指定的长度不能小于" (rtos lg_width 2)))5 c; G4 Y, Q9 X$ b) W
- (setq len nil). }# \: X" w3 Z, J3 Y
- )
" N V2 ^# a$ e - )
8 |1 v7 b3 F; a* G# p7 D - ;;输入的是关键字2 C4 P' f+ r G
- (progn
2 y+ |3 o2 j% d4 u& o - ;;用已存在的高度值和方钢宽度值做为下一步输入的默认值
! E9 y% G6 ~! E! Z, ^$ }. X - ;;用户输入时接受空回车,不接受0和负数
8 g2 {: M' T* A) Y$ e: ~' P - (initget 6): m% r8 K3 S5 T# J" \- ]; @" M
- ;;检查用户输入的关键字是"H"还是"W"
0 B5 u4 B4 _8 S* d0 z* v& ~3 N! X - (if (= len "h")
% _! c6 U9 d( z, Y" r ^0 E' {! _; q' [9 a - ;;用户输入的关键字是"H",指定高度% g! U2 D. c4 n u/ F% f! `! d
- (progn1 U* U+ {# S$ E( _; ]
- (setq high6 A1 h9 s. E0 U7 {1 {$ g
- (getdist basepoint
0 q* N3 ^% ?' T - (strcat "\n指定高度<" (rtos lg_high 2) ">:")
; @$ l) p0 V9 g) H$ S! S - )
6 R( O7 B* B" Z8 c) T: f, H5 m+ M - )
" v' f( T% t5 }& J, o/ b2 } - ;;用户输入新的高度时修改默认值! K2 s" D2 y. d" a7 M" O/ e! z
- (if high" d0 G* Z6 m, Y8 K- D
- (setq lg_high high)2 ^- X& U2 g* J$ F3 _
- )) P2 v* l; Q9 { `; u0 @/ J
- ); O% V3 G" j, g& l! K) h
- ;;用户输入的关键字是"W",指定方钢宽度1 p) K; n) r9 Q& f
- (progn5 z3 l/ G f3 q# y$ ~' V: a
- (setq width
% ~6 [1 A6 @1 H; I; y - (getdist+ T7 F; b; n. E
- basepoint. ]" Q% Q0 T& D E
- (strcat "\n指定方钢宽度<" (rtos lg_width 2) ">:")) u- F% x$ `& Q0 l
- )
4 z+ m1 y9 Y, c3 M: W" v) z) g - )! O; }9 f3 v; W- e
- ;;用户输入新的方钢宽度时修改默认值
# _9 Y* f5 d/ A _1 h6 J - (if width: C& g% \$ R/ ?/ C
- (setq lg_width width)
h/ r" L' | t5 q( }1 L2 _ - )8 K" M% t+ m/ |( e8 |) C
- )6 X( V9 j9 N- s# Q3 Z7 e
- ): k3 h6 k ?' g+ I5 e6 V" g" T8 _
- ;;清空变量,返回循环体的开始处重新由用户指定栏杆长度
/ m: f3 V8 N' O5 S: q - (setq len nil)
3 [2 j% Y- v# e _( j - )
( O. t( d8 j$ C" ] - )+ r# P! o. x( R& a9 M) v: x" `7 O
- )' C8 j( d: J0 q' ]; C
- ;;把用户指定的栏杆长度赋值给全局变量,以便用做下次输入的默认值
) @: c9 X+ [% t* `7 Y; x0 b - ;;计算用户可以指定的花形数量的上限6 {1 c7 C o0 R. _4 P) W# Z- }
- ;;用于下一步检查用户指定的花形数量是否合理6 p. y( _! x& l$ m& N7 `
- (setq lg_length len* S9 }: o& G* Q6 g/ \
- nmax (1+ (fix (/ (- len lg_width) (* lg_width 3))))
- K9 F7 d5 C2 m) v' P- c - )
3 L3 {" J1 [0 O$ ]8 d4 O8 O3 @ - ;;指定花形数量或A段最大长度
8 M- T0 _0 w% o" [/ C9 ?6 T - ;;如用户指定的是花形数量,则按用户指定的花形数量画图
" j) E/ A4 V8 s+ M' W- L - ;;如用户指定的是A段最大长度# }* G' W* G4 R
- ;;则在A段长度不超过用户指定值的前提下按最少的花形数量画图! f/ g' i1 r2 V6 S' [" x" g
- ;;用户指定的花形数量不允许超过前面计算的上限nmax,否则无解
( R+ E4 h% ?* U; f- H1 |9 h - ;;用户指定的A段最大长度不允许小于方钢宽度的1.5倍,否则可能导致无解
0 o2 p7 O' }5 Q - (while (not n); x9 P% J% h Q M) X! u
- ;;检查是否存在上次指定的花形数量,如存在则做为本次的默认值& y$ i m/ {1 M! H
- (if lg_n: T2 k% X' u# B' p
- ;;存在默认值& j7 B7 \; x5 Q& ]! v
- (progn: b+ O- o) M0 C$ I
- ;;指定花形数量接受空回车,不接受0和负数;可输入关键字"L"
) s. y# I1 @' L* I8 f" d Y$ E - (initget 6 "l")1 J% r& y1 r( E7 |8 h( |
- (setq n (getint (strcat "\n指定花形数量[A段最大长度(L)]<"0 A: H' @# X& Z7 d0 U3 m1 t
- (rtos lg_n 2): k$ N2 |/ S5 N+ |
- ">:"
. x6 L2 m6 A9 ~; J! _- S - )* a3 t/ {) g% a4 B) K6 N w- h
- )% |4 j8 u# J5 N9 {
- )% X! c" h$ @* g+ D) z* X
- ;;空回车时花形数量使用默认值
" ^$ |$ u# ]' e9 d6 |: ~ - (if (not n)
+ V$ D! Y/ I ^2 R- I - (setq n lg_n)8 J- {3 ` W, X a4 X
- )8 S7 J h \& b2 F$ ^
- )2 R) E; G- e* a- Q+ N7 |
- ;;不存在默认值1 g8 H' @/ A! l& S5 `/ s6 L
- (progn
+ A. d# J: ^* \ - ;;指定花形数量不接受空回车,0和负数;可输入关键字"L"# u! I; Q+ B" E# p |# f
- (initget 7 "l"). S3 D) O! u4 Q$ i1 [
- (setq n (getint "\n指定花形数量[A段最大长度(L)]:"))
" W2 H" I/ \6 M& N: B - )
! E7 Q# I/ u+ V1 ]5 ?) h4 U! K( N - )
$ c5 c4 h, s" e( s - ;;检查用户输入的是花形数量值还是关键字8 H" n" A; H7 \ u8 |" w
- (if (numberp n)
: u' A' q! t4 T - ;;输入的是花形数量值0 G3 N- D/ {3 ]
- (if (> n nmax)
8 ^! C2 A8 G0 S+ ? p, J0 S - ;;当花形数量值大于上限时清空输入值重新指定
1 A, q3 ?) f) Z+ r - (progn" D% ?7 c: F5 U Z
- (prompt (strcat "\n指定的花形数量不能大于" (rtos nmax 2)))$ ]" F) W9 U; Z/ I" [
- (setq n nil)
' n8 h9 f) U; v, k$ G - )
1 J; a! t! k, q' d7 _ - ;;当用户指定的花形数量合理时存入全局变量! J3 y* U8 o1 [, G. P4 F9 H0 v
- ;;以便用做下次输入的默认值: g! @' ~9 o5 k8 f
- (setq lg_n n)
# e2 E. T9 L/ Y" F5 I - )
' B- C" ^! G M+ C - ;;用户输入的是关键字$ R' S- G) ~& ]0 e- I$ ?5 ~
- ;;指定A段最大长度
. O; ^" \" V3 j! m8 C# o$ o - (progn ^: V" O+ W" |' g
- ;;用户指定的A段最大长度不允许小于方钢宽度的1.5倍
% ~3 s: x9 U) l$ `" z - ;;否则可能导致无解
3 X$ ]9 P# S/ I" Q( Z& s$ @4 k - (while (not amax)
* ]& w5 @; {2 p; m - ;;检查是否存在上次指定的A段最大长度,如存在则做为本次的默认值
0 r* s& M7 J; e; Y, |6 R$ T - (if lg_amax
7 j+ E4 n% e; N1 {9 ^ - ;;存在默认值& p) g( Q, I. T/ Y- I. m) `. E! z+ M
- (progn
. H' ~# X/ G" l/ h H k$ n - ;;用户输入时接受空回车,不接受0和负数
" P- q: g$ P3 w# s - (initget 6)
' B7 U+ `6 [" X1 ]2 D - (setq amax (getdist basepoint
' N# t! M$ t9 F; {5 x& D - (strcat "\n指定A段最大长度<"
7 v( n+ k5 ?0 v2 D - (rtos lg_amax 2)
- o }" o! ~" I( J2 U - ">:"6 Q4 _# d: {9 h* g; k
- )* T$ l5 s7 e) K( p H ?8 ? Q
- )
3 [% c0 d' L' f8 N$ V - ): Y4 s$ N g6 D: }4 R
- ;;空回车时A段最大长度使用默认值- X* ]: w# P& E. x% w! O3 P! _
- (if (not amax)+ R, r2 G1 Z$ B# s
- (setq amax lg_amax)
9 B3 Y% p+ x8 m3 }2 _, N3 m# m5 P$ X - )$ v- ?$ Z$ O5 l2 p* M
- )
9 w' |! _& Q1 n4 q- | - ;;不存在默认值
b2 i; A% ?* S% e - (progn
8 o* m) Y8 c3 k+ ?' `0 h - ;;用户输入时不接受空回车,0和负数: z, Q. e. i1 {$ {# }
- (initget 7)
. k& M! Y0 Y+ ] - (setq
* V* P5 }: J' K# P* E& e/ J- f - amax (getdist basepoint (strcat "\n指定A段最大长度:"))
3 o* O" O+ w+ x5 n - )7 R% L- [7 I* D, U e
- ): ], Q7 a( w) f3 l
- )
) g+ P# m7 e c - ;;当A段最大长度小于方钢宽度的1.5倍时清空输入值重新指定
+ F/ O. S5 f' s, y$ M - (if (< amax (* lg_width 1.5))
. H' ^. r% O8 g" m; v - (progn
6 w$ C6 c# r& R( r - (prompt (strcat "\n指定的A段最大长度不能小于"& B2 Z) ^& N& J. }1 y2 L
- (rtos (* lg_width 1.5) 2)$ M: S& I: z) i& M1 h
- )
1 z4 [* L% f( ~; _ - )
4 b: Z. V. |3 Y - (setq amax nil)
d9 |( B* @. t/ C - ); o, c7 C* V4 {' R
- )9 S( b, m' S4 y+ j4 D
- ), m9 `8 H) h0 f: Y7 f: {7 Y
- ;;把用户指定的A段最大长度存入全局变量,以便用做下次输入的默认值" k7 _7 O4 [- b8 d+ N; z1 f
- ;;计算最少的花形数量,当算得的结果为0或负数时,取花形数量为15 G, m, B# Q& G1 R6 D# A7 z
- (setq
$ N- v+ U. ~& a U/ j% t9 O- t - lg_amax amax
2 n" E+ A# k, R1 a7 q, E5 x. Q - n (1+ (/ (- len (* amax 2) lg_width)9 V9 D( r7 G* t! l
- (+ (* amax 2.5) (* lg_width 3))% ]/ E# X! K$ E5 | D
- )9 l; b) g2 X, `( @8 K
- )
0 B/ C" j7 M8 N" y0 S8 ~ - )- E- d5 F6 d" D
- (if (> n (fix n))
0 O% v7 U8 q0 V$ v8 A! t" Q - (setq n (1+ (fix n)))7 j( w \: Z, I0 V3 k; V" [
- )$ o& {; E O! C3 q4 b
- (if (< n 1)
# y7 p; w" B9 E# J% x4 j1 X7 u - (setq n 1)
9 A1 I% R6 a7 p, r8 g0 R - )4 J% o: J& Q; R2 n, `7 K
- )8 N8 C5 \% Z# Z0 k
- )5 b+ E n$ Q& |" L" P4 @
- )
( w. h& J6 g: L& v - ;;画图0 A- R5 [- Y, h: H! I
- ;;记住原来的对象捕捉设置& w7 h. P: O; n, y
- ;;按花形数量计算A值; N# P5 I d* j8 i: p# X# Q
- (setq/ i7 Q3 P3 s+ @" \. I
- oldosmode (getvar "osmode")
) m5 j% [/ Q2 r1 n! H - a (/ (- len (* lg_width (+ (* (1- n) 3) 1)))
9 _3 u$ i+ `4 H5 D - (+ (* (1- n) 2.5) 2); c- w0 }( K% {2 k% C5 r
- )
1 P/ E0 e% P3 T) C. P7 n3 s. j - )1 z/ j2 Q' m A
- ;;暂时关闭对象捕捉0 o! r9 M2 w9 {' j
- (setvar "osmode" 0)( W3 I/ n9 i& y. N4 W3 z3 F# p
- ;;屏蔽命令回显1 V5 u) K) c* K$ | y1 r% \
- (setvar "CMDECHO" 0)
& V( h! L2 Q/ S) B/ B - ;;以指定的插入点为左下角,按指定的栏杆长度和高度确定对角,画矩形% X! b j; v0 A8 \$ l- B' Z! h) o
- (command "rectang"
+ V, {; p) Q' m - basepoint
3 C+ L( f- O ?) S/ V - (list (+ (car basepoint) len) (+ (cadr basepoint) lg_high)). r6 A/ S, e2 z
- )4 p' S: h9 d: n, V& I7 M
- ;;在第一个矩形外侧一个方钢宽度处画第二个矩形
. b2 k P; e$ L" k |0 A4 k - (command "rectang"* Z0 E0 ]+ T) ]! `) ]
- (list (- (car basepoint) lg_width)
8 b5 x9 W+ [/ ]) ~0 Z6 N9 [ k - (- (cadr basepoint) lg_width)& c/ `9 a# U6 q L$ E
- )
/ l& R$ U: s4 P0 ]3 R2 A - (list (+ (car basepoint) len lg_width)
* w9 Q7 j) u: j z% V3 u - (+ (cadr basepoint) lg_high lg_width)
9 b" H% B& C% E, T; E - )
) h( W$ x+ k5 \8 H3 J) s - )) g6 r1 m; \- b. _6 T
- ;;将指定点移到其右侧A距离处$ ~. i2 U. _0 v; {4 S% |2 X
- (setq basepoint (list (+ (car basepoint) a) (cadr basepoint)))
$ D2 M; J" ?, s1 E( ^& q - ;;以此点为左下角,按方钢宽度和栏杆高度确定对角,画矩形,即第一条栏杆* w! |" ]* T* [
- (command "rectang"' H- m& }8 y$ o
- basepoint5 }! h: ?; E+ j$ P6 `
- (list (+ (car basepoint) lg_width)
1 _5 a4 G3 D( H - (+ (cadr basepoint) lg_high)
* {* N p$ U3 j; f1 \ - )% [: ?' P d; |9 [# \ A
- )5 [# }) k7 X; g8 ]6 v# C9 \+ h. `
- ;;用循环语句,依次移动指定点并画出其余矩形(栏杆)
" r1 M" u% U+ [- w/ J - (repeat (1- n)
' s, P' S3 A, i* h( N S0 [6 Q7 b - (setq
* F6 j, U& R1 a% a2 i - basepoint (list (+ (car basepoint) a lg_width) (cadr basepoint))
! e; \* Q6 x7 [/ n. x5 { ` - )
1 p8 e2 ~# k) D( C7 o* d- n2 O - (command "rectang"
- W1 `$ l! ]3 o# } - basepoint
& Q) N0 Y4 k: {6 W+ m# U! ] k5 q - (list (+ (car basepoint) lg_width)
4 H$ Q A& {, q& w- C - (+ (cadr basepoint) lg_high)! w& p2 G I9 I. u. |9 K- }
- )' ~1 n* T6 n% Z, W+ u1 o
- )! [# |. t, W% A
- (setq basepoint (list (+ (car basepoint) (* a 0.5) lg_width)
' I2 t3 G$ j" z- M - (cadr basepoint): d; q! U2 S$ ^9 B0 P0 Q8 L3 S
- )! V2 j- N0 {+ [
- )- j( @. I5 n7 z! e3 d
- (command "rectang"& ]) l% y. F7 k/ Y" C
- basepoint1 S. a8 b9 Y" n9 i% x2 W/ z
- (list (+ (car basepoint) lg_width)
: O7 F# c8 o, t& M! Q - (+ (cadr basepoint) lg_high)
+ ~3 o6 ]& C# p - )
2 E$ c: e0 ` B5 U I - )0 y4 Z6 b. R7 r
- (setq. i6 k# N; m4 b u
- basepoint (list (+ (car basepoint) a lg_width) (cadr basepoint)); P( K8 \1 L4 z3 G x
- )
: W0 H. f' _: s* I& f) }( t - (command "rectang"0 U/ V( c# v4 h- L0 }6 z7 ]9 Z8 G
- basepoint) P1 M7 G; s H U. I3 Z
- (list (+ (car basepoint) lg_width)
( R) k4 z3 i5 F [/ B. E; | _ - (+ (cadr basepoint) lg_high)
5 [' B7 T6 e" ~# B - )
" k+ o: m4 s* _! h - )" M0 I- E" X" w1 v1 H9 y6 ~, N
- )
$ ~' f' D% x" M) I% h! m2 x - ;;恢复对象捕捉设置
|; `& F7 ?$ W8 X$ h - (setvar "osmode" oldosmode)& B7 u7 V0 `1 u
- ;;打开命令回显# U; d l# y3 o- C1 i" l$ ?0 `
- (setvar "CMDECHO" 1): e9 U" `7 \& {7 i7 ~
- (princ)3 d# D, s7 S8 S7 x
- )
7 M" J* }# ~3 o
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