我在软件中编写了一个画齿轮的LSP程序。问题在于显示直径。
' i% k8 g5 d" b2 a2 iM=4,Z=40所得出的齿根圆直径为150.35，而半径为75.18。4 `3 E. u/ k6 P9 J4 W+ K' {( |6 {/ x
而根据计算公式（齿根圆=分度圆-2*1.25*m）得出的是150。9 V, _4 [* C& T7 r S3 o
画其它的数据却没问题哦!!!!!!!!!
a% ]" y8 W, h2 c( D$ \为何会这样？有请高手讲解下。 附带LSP程序：驱动命令为GEAR
- {3 g" [0 k0 k$ W O(defun c:gear(/)
; ?% [' C4 Y: E% h( setq% U+ Y( W, x+ @
p0 (getpoint"输入齿轮中心p0: ")/ w0 M0 b' p; I- j
m (getreal"输入齿轮模数M: ")
" I6 P2 K+ i4 bZ (getint"输入齿轮齿数Z: "): f! v0 h2 x! n. w6 J* b
ha 1
; m3 p& P, b. G. Rc 0.25
0 T2 G7 c4 Z9 _: }$ F2 L( ca (/ pi 9)
- k# @5 q, N- S; S( vra(/ (* (+ z (+ ha ha)) m) 2): P7 w, S/ w! o+ u- [( l
rf(/ (* (- z (* (+ ha c) 2)) m) 2)
* [) g& f+ H+ w* C6 tr(/ ( * m z) 2)
4 j3 z$ d3 M, ]0 w& Frb ( * r (cos a))7 [# ] `% `6 b3 [. e% W
ri rb
* d4 P9 Z. I: nang 05 j% \+ t s9 y; n L1 M( A& f
g (polar p0 ang rb)" k$ _! I$ }0 `5 x1 `7 @
)( F: V$ Q7 ~& g9 O2 A7 @
(command "circle" p0 ra)$ l* O& e( N! C3 i
(command "circle" p0 rf)
5 F& {: ]- T; ^8 q3 q9 Z! `7 z1 j(command "circle" p0 r)
- Z! k5 v" ?5 q* \* n2 @(command "circle" p0 rb)! E+ S* [2 r& ?8 f: P! |% h& u
(command "line" g)/ w' X- g7 F. x3 R$ \
(while (< ri ra)- Q" \7 h7 x8 a1 e
(setq
# s* R) r7 [* t. i3 D2 kang ( + ang(/ pi 360))
6 ~! y' l8 X* I) x5 jri ( / rb (cos ang))
1 ]! r0 l$ I6 v2 K$ O7 g* tcta (-(/ (sin ang)(cos ang)) ang); t& ~$ \7 _/ v
g(polar p0 cta ri))
0 _9 h! A& ~+ U5 x# R( x/ E* R5 Q+ c(command g))9 {# c& [5 E" I4 S% b- d8 l
(command)) |
发表于 2007-12-12 14:50:23
