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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- o" f3 M5 t6 i8 c6 x/ a
i, d0 u6 _3 \: z3 r $$ This program will read an ASCII data file consisting of polar point
; T& t+ v: o, w# H/ K $$ data in two columns and create up to 1000 points. It will also' I; F: D4 G( o$ `
$$ optionally create a closed spline thru the points.
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5 P1 z; p5 E/ B$ J$ A% f, G y STRING/ tfn(132), fmt(80)0 Z6 M! F. _! M/ r2 Y+ k, G9 R
NUMBER/ resp, r, theta4 w7 D$ {8 u. G
ENTITY/ pts(1000), zero" }! n1 i9 l5 B) `: x: }% W
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fmt = '#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@' + $$ k! |: V- w* K* O c$ R; k3 l: S% @
'@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@': ?' f# \4 s% Z1 H% e4 b2 l
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a20: TEXT/'Enter full path to data file', tfn, resp, deflt7 D9 r( V3 o' |) G* Q z
JUMP/ a90:, a90:, resp
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8 v- o* m) n" e/ E; x FETCH/ TXT, 2, tfn
- ~; g3 K- F6 q5 v& C8 k3 H tfn = &SFNAME(2,IFERR,a20： ）, O* G3 t+ P% z- g# q9 D
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$$ Find the space between the columns and set up the format string
; D/ z: S. Z# J RESET/ 2
0 r: P4 G% j5 O" B! t READ/ 2, USING, fmt, tfn
* l+ d& }, T) {& m+ `! `) N ii = 1& l: k+ q" g+ K* K9 G0 a+ T1 c
a25: jj = FNDSTR(tfn, ' ', ii + 1)1 p S. ]; j& `2 j
IFTHEN/ jj == (ii + 1)
6 @. N4 ]5 v( q& \9 ^+ T+ G ii = jj
9 ]3 A9 m! z# w( r j JUMP/ a25:
. w; C7 c& x, U2 w6 t0 U9 p ELSEIF/ jj == 0
p+ X/ }+ P) s U jj = FNDSTR(tfn, chrstr(9), ii + 1)
5 F8 D- V: b, p5 f7 B( o ENDIF ], d/ O; q, {, }
fmt = REPSTR(fmt, '@', '#', jj): r! p# z6 G6 E0 l
, D8 H( j# g2 s/ ?5 ?& O zero = POINT/ 0,0,0/ T" G& q3 i6 O
4 ~1 J. K- q6 G RESET/ 2
7 ]# Q# G: m7 l4 k; v ii = 0
% C( }8 z6 o3 i& w; m) Z. da30: READ/ 2, USING, fmt, IFEND, a70:, IFERR, a70:, r, theta$ N/ ]; r! X3 h8 f! w/ H
pts(ii = ii + 1) = POINT/ zero, POLAR, r, theta3 C+ b! p9 c5 g- ^4 Q6 |
if/ ii < 1000, JUMP/ a30:/ |6 ^- ?4 {0 k: k% t- z& f9 W
% g5 I s5 H6 e2 T' ma70: DELETE/ zero: T7 N" ~; q F) d/ H: B' l
FTERM/ TXT, 2
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* M# `* l1 ]3 T; R9 p0 T* R/ i VIEWE/ AUTO
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# g. g" J- ?" }$ V. c( F CHOOSE/ 'Create closed spline thru ' + istr(ii) + ' points?', $
( W! d$ i5 n/ K 'yes', 'no', deflt, 1, resp5 w8 c. _7 f: x5 [
IFTHEN/ resp == 5
" S ?4 E6 m! ` BCURVE/ pts(1..ii), DEGREE, 3, CLOSED
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CHOOSE/'Delete points', 'yes', 'no', deflt, 1, resp) H! r" A) D# G. n1 B
IF/ resp == 5, DELETE/ pts(1..ii)* b! Z V' v& N4 H/ m
ENDIF
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2 x' V" R0 [6 U$ u1 ja90: HALT
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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