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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********************, r4 k" I; N5 H2 r
$$佛珠
) F5 f/ x' o! U J* n$$实体变量声明。
+ ~$ H9 e! z; D7 X/ f4 A% Wentity/pt(11) $$选择的点数
0 ^ a n$ W+ D7 i1 ?( dentity/obj1,obj2,obj3,obj4
: ~ ]- d! L& }, V5 Lentity/mycolor
$ C# h! y) Q7 J( g! E: O' Zentity/results(1000) $$生成的点集5 ~& {9 \0 j4 g2 g" _1 g# K$ \* \
number/num2,num $$点集的数量
" w# T! J8 T9 S! I& G/ K: Mnumber/beaddia $$佛珠直径
/ F/ A$ F+ {/ O$ t# @number/a(3),b(3)! G5 c' H6 E/ [3 M
data/num2,108
0 f5 V) R! l: Q% |$$print/'num2',num2
2 Q- b8 U4 o4 Z3 B$ k$$选择屏幕点
0 K) h) U$ K" ?' _% Pnum=1) w- j" l+ L# Q& v: g: F( f+ T
l10:( N3 @, M5 [( l& I0 f
if/num>11,jump/l30:$ A3 m" I% V* v
pos/'pick a point',x,y,z,resp. B, i6 C8 z7 _/ W
jump/l10:,trm:,,,l20:,resp
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, R+ b, Y9 b- H" ^5 h9 e: El20:
& X3 S0 x, t/ M. r8 c: y. W6 l' jpt(num)=point/x,y,z
- O7 {7 T; u1 ]: d: w1 Pnum=num+1
; i& c" U2 H% [" Ljump/l10:
4 c3 k9 g6 E+ W) p
& F( c. X4 x, t$$创建封闭的样条曲线8 r% F6 j! X2 K5 A' F
l30:
* U0 D; w2 v/ K9 U7 O: cobj1=spline/closed,pt(1..num-1)
' F$ @5 ~# y4 w& x# Kdelete/pt
* h! e" {3 \1 g( i* E s$$样条曲线分段,创建点集(等弦长,弦长=beaddia)4 a$ Y1 g! M. E: Y0 i1 M
cpset/earcl,obj1,num2,results
% }0 P) P& \( f! n6 W' Q B$$计算球体的直径
~ y$ T$ g2 d/ J# S( h1 r% |) Va(1..3)=&point(results(1))$ h) b% n: |* q
b(1..3)=&point(results(2))
/ ` f w: y1 f0 Y3 }beaddia=sqrtf((a(1)-b(1))**2+(a(2)-b(2))**2+(a(3)-b(3))**2)
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& }, n; F6 Q, [, R1 p! h1 I! `) a5 D+ G2 ?! r M! V
$$在样条曲线的分段点上创建佛珠
\* \& R$ E. Q# M6 vnum=1
1 F) N8 A8 A dl40:6 ^8 q9 c0 Q( A2 ?) P" l5 x( L
if/num>108,jump/l50:2 L7 [# F3 P; \" i2 k2 E
a(1..3)=&point(results(num))' b) d! |8 L9 j; \6 e
obj2=solsph/origin,a(1),a(2),a(3),diamtr,beaddia1 [( @+ @ Z6 u- X! b5 g" d
num=num+1
1 |+ E! m7 K3 X+ z* Ejump/l40:
$ B1 Y3 {; ]( P, U7 F& r+ q' Y$ h/ F* f# E
$$创建线. ?) `2 L1 ~+ q4 W A4 G" S
l50:
. p* c& n$ H$ w% r* L: o' P2 e+ robj3=spline/results(1..108)
6 L4 z/ \6 d" cobj4=soltub/obj1,diamtr,beaddia/8
& z0 @' h# Q; T& i5 m
4 ^" z6 \( z/ f' u7 W: ndelete/results
: N% l( z3 l# b8 P5 Adelete/obj1
. H; V: k+ u. s4 d( rdelete/obj3
2 l6 [- u& p+ Y$$程序结束6 k- I0 l8 P/ Q( o1 d$ e
trm:' A9 w" |1 w& g1 n& l3 _
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