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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" Z+ @2 {2 t/ f5 V! y! l4 G' j9 Z4 w
! h# h3 s/ L1 E3 x- R $$ This program will read an ASCII data file consisting of polar point, C0 }3 U2 l3 ?& }
$$ data in two columns and create up to 1000 points. It will also
: E9 e/ V9 u/ Z' c $$ optionally create a closed spline thru the points.
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, B8 E' s8 h' |1 ] STRING/ tfn(132), fmt(80)
. ^2 G |! H; q1 G! r& J NUMBER/ resp, r, theta; S# i6 g, N* Q, |) d/ \
ENTITY/ pts(1000), zero+ J& `' L) H: g3 @" X% \
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fmt = '#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@' + $6 Q4 p, s/ Q2 H) s( o9 D
'@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@', R! ~% `: U" q& v4 x8 \1 [
4 V$ d, U! o5 f Ya20: TEXT/'Enter full path to data file', tfn, resp, deflt" m7 Y" ^. d% w5 l5 v
JUMP/ a90:, a90:, resp
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FETCH/ TXT, 2, tfn8 L$ n+ S% j, A9 b2 g6 P# p
tfn = &SFNAME(2,IFERR,a20： ）
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$$ Find the space between the columns and set up the format string
* a0 L& t7 h0 ^' ~ o RESET/ 2
m, H+ V8 R- r0 a( _: K: G7 r READ/ 2, USING, fmt, tfn
4 b8 W7 M$ l) L# D' z5 ? ii = 1
/ z9 u! C0 k& f+ I9 e% Q1 Wa25: jj = FNDSTR(tfn, ' ', ii + 1)
# y' _4 t! {% b6 k! ] IFTHEN/ jj == (ii + 1)( Z: D* B7 C. d+ ^1 @
ii = jj
0 K! v6 H/ S, E! S JUMP/ a25:
4 Q) V A. O( Y& u+ X ELSEIF/ jj == 0
0 ~& Q8 h: K7 G+ Y$ }0 Z O jj = FNDSTR(tfn, chrstr(9), ii + 1)
X1 X# l8 G% a6 ?# Z+ K7 y& d ENDIF& A: y9 H' b8 P9 n& X( a% d
fmt = REPSTR(fmt, '@', '#', jj)
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- t# k2 }1 i3 f zero = POINT/ 0,0,0" _8 q- R; r: F- O1 Z* D
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RESET/ 2
) R% n, k3 x v4 k4 m ii = 0 @$ A5 C/ C* R# S1 a3 h3 U
a30: READ/ 2, USING, fmt, IFEND, a70:, IFERR, a70:, r, theta3 y9 O6 P+ I/ ?
pts(ii = ii + 1) = POINT/ zero, POLAR, r, theta/ ]/ L3 ^% f: h+ K- d2 [; G
if/ ii < 1000, JUMP/ a30:! Z+ u; A# ]& p# k
1 S8 Z, b/ Z6 ?! O) m2 x7 H, n, T% ia70: DELETE/ zero
* y4 {+ O/ g: A# Y* Y+ D FTERM/ TXT, 29 |, U7 q; z8 w: C5 O
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VIEWE/ AUTO
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5 x; i& Y: s, O4 ~. F3 g$ ]& k" L CHOOSE/ 'Create closed spline thru ' + istr(ii) + ' points?', $
# k6 r4 F- ]" I0 G0 l 'yes', 'no', deflt, 1, resp4 @; c5 t* r D" k. n2 v% @
IFTHEN/ resp == 5. t* U, W3 g4 Y0 B* d; f
BCURVE/ pts(1..ii), DEGREE, 3, CLOSED
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CHOOSE/'Delete points', 'yes', 'no', deflt, 1, resp0 l$ Y2 k0 N$ @$ ]8 N, w
IF/ resp == 5, DELETE/ pts(1..ii)/ h. K5 [ c# \: f5 L4 n" o* I
ENDIF: a9 ^, z/ \4 E% `: W
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a90: HALT8 {% p+ R$ ^/ v' h6 r5 e+ ]7 U* t' X
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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