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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 file2 J# \1 \* x( Q* g3 [6 X( Y
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$$ This program will read an ASCII data file consisting of polar point
! O8 v- [% z0 b$ t* K" {. Q $$ data in two columns and create up to 1000 points. It will also
F& K4 `1 i2 n, R' W$ ^% P2 n4 A0 { $$ optionally create a closed spline thru the points.# w' B8 U0 r1 O) O) \
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STRING/ tfn(132), fmt(80)
3 v" T& A" q" _+ i NUMBER/ resp, r, theta+ q1 f8 x6 X5 ?2 W0 e) d3 J! z
ENTITY/ pts(1000), zero: X) y0 x& w1 C! t5 s0 x
% Y( g8 @( L9 }8 [+ T fmt = '#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@' + $ V+ e( _( s$ |. @3 q
'@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@'0 F: M/ S2 O2 k' ^
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a20: TEXT/'Enter full path to data file', tfn, resp, deflt
$ g7 L j g# t5 c& l* h JUMP/ a90:, a90:, resp6 \" |( V. y, c* W. g4 e. G
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FETCH/ TXT, 2, tfn
9 h* u- L5 X1 f* Y* N tfn = &SFNAME(2,IFERR,a20： ）
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$$ Find the space between the columns and set up the format string: S& _8 a! M- r" }' y3 \/ a
RESET/ 2
7 z7 ` W. ?+ x7 {& M READ/ 2, USING, fmt, tfn
7 f1 W* o" i; }' X4 x) _ ii = 16 l/ W& W; A9 K6 ^* m2 R
a25: jj = FNDSTR(tfn, ' ', ii + 1)6 S/ R/ ^$ x. o6 @9 O7 J* U
IFTHEN/ jj == (ii + 1)
7 d) J* `/ H! M$ [# [- s% p ii = jj; }; f; ^( {/ s2 U; [6 U
JUMP/ a25:* p. a$ E( `' M0 D/ {
ELSEIF/ jj == 0
b( u9 m; B* J& q jj = FNDSTR(tfn, chrstr(9), ii + 1)2 i- j# z: g% N9 @! j. Q' c
ENDIF- l$ u# J& X' K; F
fmt = REPSTR(fmt, '@', '#', jj)* M3 o% p. V6 ~# l5 B% S- `8 w4 r
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zero = POINT/ 0,0,04 G( g& O' a, y! M
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RESET/ 24 t3 O' ? V2 j: ^" O4 D; _% ?* Y K
ii = 0
9 Z; t+ \- U/ w, D6 L6 B/ o; Ra30: READ/ 2, USING, fmt, IFEND, a70:, IFERR, a70:, r, theta# J( g* Z8 w" f" f9 H
pts(ii = ii + 1) = POINT/ zero, POLAR, r, theta* ~( l( ^+ U \9 Q
if/ ii < 1000, JUMP/ a30:
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a70: DELETE/ zero
7 o3 h# u) k* ]. f( R FTERM/ TXT, 20 q2 R, h1 \6 }, i1 P, L
+ p- t/ G# ]# F2 ` VIEWE/ AUTO" a, R @& E6 S6 ^7 }; G
0 t2 e L: N* z8 W" M CHOOSE/ 'Create closed spline thru ' + istr(ii) + ' points?', $
Y r9 G; L. \9 c* v0 a. r 'yes', 'no', deflt, 1, resp
5 D) l6 w5 u. f' e1 c [" z8 E IFTHEN/ resp == 5' G2 l: h+ T9 K
BCURVE/ pts(1..ii), DEGREE, 3, CLOSED9 g" Z" {' E& F
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CHOOSE/'Delete points', 'yes', 'no', deflt, 1, resp( u" l, ^6 \* k0 L$ L
IF/ resp == 5, DELETE/ pts(1..ii)
+ }$ w, {& O Z u: j ENDIF/ R1 X8 F$ S B
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a90: HALT' }0 }' j3 ^$ @+ E; f: {
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. J, f* @# C! q给你个例子，自己改造一下 |
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发表于 2006-11-2 21:57:28