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发表于 2008-5-10 20:16
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***************珍珠项链建模源代码********************
0 _5 }- O. m, J) ~, s6 t$$佛珠* F% a+ {! C& O
$$实体变量声明。, z* F, c9 v& d, L/ d0 L
entity/pt(11) $$选择的点数
. \/ F; d- M% X( ^9 f+ X/ Qentity/obj1,obj2,obj3,obj41 D" ]! ^, I/ L# I
entity/mycolor
1 `% B$ U: X2 W4 ]entity/results(1000) $$生成的点集
& B$ Y& y; F& v. j& V$ Wnumber/num2,num $$点集的数量3 U/ {, r' v: l: ]
number/beaddia $$佛珠直径
( {+ _+ R* h8 Q- j1 Tnumber/a(3),b(3)1 G+ ]/ Q$ F! b" K
data/num2,108
' T) R* }& o8 p% G9 L0 T0 {% d$$print/'num2',num2# ^6 ?) L7 [4 j3 o8 I, A
$$选择屏幕点
1 J4 h. h& t+ |4 y# O; Lnum=1
; [0 s" k1 W' y$ a; Cl10:# j$ n J9 o0 Q1 R' i/ w2 g' X
if/num>11,jump/l30:
% d- X" `1 ^7 d" S4 E, P4 [9 Ipos/'pick a point',x,y,z,resp- v ?0 U: ?6 z9 K% ]) B
jump/l10:,trm:,,,l20:,resp6 y1 }6 }% m7 y# _+ S; M
# [1 J {! F0 o* }+ _# b
l20:, d" l5 q8 i$ l1 V
pt(num)=point/x,y,z
/ L v* J( z: |- m* O/ vnum=num+1; C) H) I- g, V
jump/l10:5 [& Z9 @: Z5 d. o' Y8 B. n0 m
& U, |4 l( g$ r/ [! r9 s/ a+ Z' H2 D6 K
$$创建封闭的样条曲线- d: N7 n9 M5 l+ U
l30:
4 _: p M5 d3 z5 ?; s+ X. sobj1=spline/closed,pt(1..num-1)
+ r2 N h& U5 e/ Z2 `- @5 ndelete/pt9 I* \: |7 S0 q1 n1 w q
$$样条曲线分段,创建点集(等弦长,弦长=beaddia)
7 Z1 Z4 H' {2 u! l" M, M Scpset/earcl,obj1,num2,results
% A9 u# R* h; h/ k3 z$$计算球体的直径
) c6 J/ R8 Y* B0 m, n" W$ [a(1..3)=&point(results(1))/ H% X9 @+ H0 J3 j& i% n' |
b(1..3)=&point(results(2))$ i D# _* s: M9 L9 Q$ A. x
beaddia=sqrtf((a(1)-b(1))**2+(a(2)-b(2))**2+(a(3)-b(3))**2)( B' z: X) H' R% n. l
( ^$ K1 q- H0 f% N8 g5 A
# h% D! O* x" d& S, K5 a
$$在样条曲线的分段点上创建佛珠
@* y5 K! G# g# S+ xnum=1
7 @- x+ P Q: ]6 z6 b. vl40:# C/ U& L& M. H0 v4 ~. k- d! J
if/num>108,jump/l50:
: O4 g5 b# L# R2 I7 }7 Ja(1..3)=&point(results(num))$ r' K5 v# }0 d3 Z1 l- V! g3 ~
obj2=solsph/origin,a(1),a(2),a(3),diamtr,beaddia1 y$ p# ^6 `6 b) n$ }
num=num+13 A0 T7 P. J, e* c
jump/l40:
* h: y$ N! o) K( @: ^ t' i( @- l6 u8 h5 z: F5 Q6 }5 m+ j
$$创建线* e% _ \8 l \' y2 f3 T
l50:
# k* I6 G6 ~5 V& w, {: Tobj3=spline/results(1..108)
4 h% t! D) Q& k- t2 H. Xobj4=soltub/obj1,diamtr,beaddia/8) D- W8 G+ h9 F& t8 M3 K& h
! r P* I. f' a5 [; A) T' \delete/results, r! X/ w: }0 d& j6 u
delete/obj1
3 Y. W: b' h8 C3 |, ]delete/obj3
+ {" M9 v j" h3 `8 V( L) m$$程序结束) ~9 j# l2 W7 b6 m7 M0 l
trm:* ~, e# D/ y, f8 l" B) y7 F1 A+ }
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