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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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* |1 \, \& B' L+ }2 R) ]0 K $$ This program will read an ASCII data file consisting of polar point8 r" M8 `, X0 @( N* E5 |
$$ data in two columns and create up to 1000 points. It will also, c) J @$ h7 q
$$ optionally create a closed spline thru the points.. H+ o9 f( N# G+ ~5 h z( S' u
/ @4 O) T. @; L1 k STRING/ tfn(132), fmt(80)1 T& w) [' c) H! F2 n
NUMBER/ resp, r, theta
% W( o) b# M6 w( T' u ENTITY/ pts(1000), zero
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5 x' d9 R# D& S# Q/ g9 j" n fmt = '#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@' + $: ~& R% P {! X, H7 j; x6 R
'@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@'* _( _8 {! I, x; u* l
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a20: TEXT/'Enter full path to data file', tfn, resp, deflt
' B2 _8 Q- @3 ?& R% v% V JUMP/ a90:, a90:, resp
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FETCH/ TXT, 2, tfn9 r3 p. L& U5 o0 R. K% D
tfn = &SFNAME(2,IFERR,a20： ）3 `% e: N: q8 A3 S* B7 U
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$$ Find the space between the columns and set up the format string
* S* v7 t3 a7 z: @. X1 O' H* V% } RESET/ 2' d+ H8 P1 R- `3 x( f/ |" a) k& C3 {
READ/ 2, USING, fmt, tfn
2 h3 K( z: z" x ii = 1, J2 s( B' N* P+ {: |" e \
a25: jj = FNDSTR(tfn, ' ', ii + 1)& u& a% r) ~: r8 l0 T8 _ s3 Z! n
IFTHEN/ jj == (ii + 1)4 k7 I) C% f. v- L
ii = jj
0 a$ a; @3 u( x( H- _- `. @' k JUMP/ a25:
. k H# {1 D: |- x4 g ELSEIF/ jj == 0
2 j8 E! {6 t, O# {- P* o jj = FNDSTR(tfn, chrstr(9), ii + 1)
2 S' _$ t9 g/ N# q g( @4 A ENDIF# x' w( Y7 T$ `2 m9 a4 h
fmt = REPSTR(fmt, '@', '#', jj)2 E# i: N- ]+ q; y
d8 y, W4 `( }) M3 L0 L1 U$ W zero = POINT/ 0,0,0$ n$ I/ O4 V% C% ^* U
) A, S+ b2 b" V+ m" q* s RESET/ 28 @2 C7 Q7 d* {& `
ii = 0' X( `0 N2 i3 ?9 A/ e T
a30: READ/ 2, USING, fmt, IFEND, a70:, IFERR, a70:, r, theta
9 C1 }& V" l- c' U# `8 W5 X pts(ii = ii + 1) = POINT/ zero, POLAR, r, theta
' H$ M, a/ d' G2 I3 f if/ ii < 1000, JUMP/ a30:
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a70: DELETE/ zero
# b1 }. W5 S( v; A. f0 o FTERM/ TXT, 27 N. {5 q6 Z3 `; Z; h5 J& ~
* }3 [8 e5 v- A+ w1 l- z: } VIEWE/ AUTO
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CHOOSE/ 'Create closed spline thru ' + istr(ii) + ' points?', $( A2 S4 s$ j# v; `0 B
'yes', 'no', deflt, 1, resp
8 x: N3 f" U$ F1 i0 D+ I# e: z/ l$ @ IFTHEN/ resp == 5
& n" I7 w- n+ _' z BCURVE/ pts(1..ii), DEGREE, 3, CLOSED
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CHOOSE/'Delete points', 'yes', 'no', deflt, 1, resp3 q6 R' L4 E# U F' T5 b
IF/ resp == 5, DELETE/ pts(1..ii)6 i! E8 ^% W' e+ _7 Q5 Q9 C8 J
ENDIF
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给你个例子，自己改造一下 |
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发表于 2006-11-2 21:57:28