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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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$$ This program will read an ASCII data file consisting of polar point
5 d) a! `* |0 t1 R+ N $$ data in two columns and create up to 1000 points. It will also
; e, A! Q- m8 X. v; x $$ optionally create a closed spline thru the points.' V; c9 F7 D9 Z( N' t; s. _5 U, s( W
; ^1 }4 G) X/ N7 A s0 d) D0 _9 g STRING/ tfn(132), fmt(80). C0 r& |# q# I& u/ h1 u# R9 [
NUMBER/ resp, r, theta, _$ T) ~6 b: j# z' p+ H1 P! I; D
ENTITY/ pts(1000), zero. ?( }3 n% t+ k1 Z6 I) {
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fmt = '#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@' + $
5 I7 J# K6 q" Q/ f: q* U '@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@'
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a20: TEXT/'Enter full path to data file', tfn, resp, deflt; C7 f+ l. q$ X$ H- N
JUMP/ a90:, a90:, resp2 z9 v/ D8 y6 A$ { P
@$ B o7 Y( k+ D FETCH/ TXT, 2, tfn! p2 U2 ^, q& W1 e- Q/ F
tfn = &SFNAME(2,IFERR,a20： ）' k1 H' K# U e) q
+ G) l" o& A9 o- v( N2 h $$ Find the space between the columns and set up the format string
" }" f, \( `4 X: ^ RESET/ 2& p( L# C0 b% P0 F- S' y# S
READ/ 2, USING, fmt, tfn! f7 @; n- J; o8 @1 Q
ii = 1; Y( n' Q) M( }6 u- g8 |) m
a25: jj = FNDSTR(tfn, ' ', ii + 1)
1 j' e g# k+ T$ o& s! D; Z3 i IFTHEN/ jj == (ii + 1)3 x! u | J! }5 l
ii = jj7 v6 m9 j5 i. w+ D6 l/ A8 V
JUMP/ a25:5 V% c8 M4 K& M* h W5 S: K
ELSEIF/ jj == 0
4 P/ ^8 V: Q L& | v* H3 K jj = FNDSTR(tfn, chrstr(9), ii + 1)
* S. P5 |8 ]& F6 u# ` ENDIF0 X% P- J; e7 W* D; p" c
fmt = REPSTR(fmt, '@', '#', jj)
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1 B9 y6 k s0 A2 v3 y( Q$ H zero = POINT/ 0,0,0# ]3 e; G' ]& ]; q
6 }* J Y5 |" h- H: U RESET/ 2" ?* i% y) w2 q7 k- K
ii = 01 K; K% x) @0 Z0 {6 X! S
a30: READ/ 2, USING, fmt, IFEND, a70:, IFERR, a70:, r, theta% K' o( ~5 T$ y/ z0 X
pts(ii = ii + 1) = POINT/ zero, POLAR, r, theta
$ m3 u3 `9 {. L( e2 Y; r if/ ii < 1000, JUMP/ a30:
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0 n9 X1 I; B( x% S2 Ca70: DELETE/ zero
9 O0 [6 D* s2 _( X FTERM/ TXT, 2
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VIEWE/ AUTO H# H, T6 ]* e$ p% A' c
) G8 r; Y; [% F. { CHOOSE/ 'Create closed spline thru ' + istr(ii) + ' points?', $
- M/ e- j/ f) q8 Q 'yes', 'no', deflt, 1, resp9 }1 R6 C& q3 z
IFTHEN/ resp == 5; d- x' c9 o* ^& s. E
BCURVE/ pts(1..ii), DEGREE, 3, CLOSED( g* b M5 p6 M' U. t
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CHOOSE/'Delete points', 'yes', 'no', deflt, 1, resp, n, a* a6 X, N3 T
IF/ resp == 5, DELETE/ pts(1..ii), Y8 g6 g/ F* @, {# M
ENDIF7 R/ `* l; L" S3 ^% j( ]
! c5 j( x8 l; P. a! e1 Ja90: HALT
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( a" I" ?4 M, e4 {& e/ b给你个例子，自己改造一下 |
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发表于 2006-11-2 21:57:28