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发表于 2007-2-2 22:17:32
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来自： 中国黑龙江哈尔滨
Subject: Sample GRIP program to create polar points from file
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$$ This program will read an ASCII data file consisting of polar point
3 f, k6 l0 X) ]$ u( i( ~& k0 V $$ data in two columns and create up to 1000 points. It will also
& A' s+ d& O4 ^ $$ optionally create a closed spline thru the points.
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STRING/ tfn(132), fmt(80)$ l0 B5 P% y( g5 C
NUMBER/ resp, r, theta
* V2 z% } i2 e ENTITY/ pts(1000), zero3 t7 ~8 F1 i, q8 ?/ B) I+ B
2 C8 u% G3 s8 W/ |, y8 C: Y: a fmt = '#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@' + $% Y& U, K' b; m0 R: F% [: o: i2 s
'@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@'
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a20: TEXT/'Enter full path to data file', tfn, resp, deflt6 @8 g6 J2 X4 r8 Q
JUMP/ a90:, a90:, resp( t# H3 }( @ S i. m
1 `' J" F0 @/ y v. R# M7 i: _2 e FETCH/ TXT, 2, tfn
' ^ q% Q; Y: l! w5 G' l4 T& B tfn = &SFNAME(2,IFERR,a20： ）
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9 ^0 r B i7 o $$ Find the space between the columns and set up the format string6 Z! P; A) \+ }% Y7 C. B
RESET/ 2) S" m5 h: e. e4 F+ @1 a" X; p" e
READ/ 2, USING, fmt, tfn
5 E' t3 d; g/ I K# Y ii = 1
8 b' N3 L* C+ M0 c& z/ ]7 J: \a25: jj = FNDSTR(tfn, ' ', ii + 1)2 _6 |6 [. L. J2 o/ Y# C
IFTHEN/ jj == (ii + 1)' b1 b$ p n% N0 P, E
ii = jj3 n# X. n1 ~- t) |7 D$ p
JUMP/ a25:' ]8 G/ J4 {1 ^
ELSEIF/ jj == 0
" L" L" U- [/ {/ N2 E9 n jj = FNDSTR(tfn, chrstr(9), ii + 1)* H( \: N2 H% K
ENDIF( s- v: T& S6 Q5 [% y
fmt = REPSTR(fmt, '@', '#', jj)4 X# R9 s5 g+ D% W) O" L
4 E2 J$ n- X) X0 D7 X, E5 f zero = POINT/ 0,0,0
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RESET/ 2, I3 T6 D, m/ W+ b" d- v
ii = 0
J' Q: P; p* a! M9 Za30: READ/ 2, USING, fmt, IFEND, a70:, IFERR, a70:, r, theta: A! R% ?1 q) Q G! J, c( U/ N
pts(ii = ii + 1) = POINT/ zero, POLAR, r, theta
. A6 @/ b2 W" b' A. Y0 d if/ ii < 1000, JUMP/ a30:
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- \0 G$ s2 W; Ja70: DELETE/ zero
3 C$ S9 n) h/ I6 ^ FTERM/ TXT, 2( \2 r# P: @9 G6 o, I
* \5 ^) C4 ^* n VIEWE/ AUTO! l4 W. m. w5 }; `/ ~
' @* C' U" I7 a CHOOSE/ 'Create closed spline thru ' + istr(ii) + ' points?', $
3 H4 e# p s- h. H 'yes', 'no', deflt, 1, resp
+ M3 T% V5 ~ _2 j& b2 o IFTHEN/ resp == 5
: s# N& Z; }5 { BCURVE/ pts(1..ii), DEGREE, 3, CLOSED, m3 _; Y& [$ f
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CHOOSE/'Delete points', 'yes', 'no', deflt, 1, resp% C2 L+ T) P8 s$ w; c6 i
IF/ resp == 5, DELETE/ pts(1..ii)& A/ p+ M* G& S, ^* ~) G
ENDIF
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a90: HALT3 V' G9 a% e. y9 U, Y q
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; j i6 k* I1 f0 Z! j给你个例子，自己改造一下 |
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发表于 2006-11-2 21:57:28