|
|
发表于 2007-2-2 22:17:32
|
显示全部楼层
来自： 中国黑龙江哈尔滨
Subject: Sample GRIP program to create polar points from file
2 h& `2 F4 u2 B9 r; [, Y5 U! {+ z5 p
$$ This program will read an ASCII data file consisting of polar point1 z0 g { O; g. s6 `6 U; m
$$ data in two columns and create up to 1000 points. It will also
?% o2 V. H' ^; B7 x7 s0 G $$ optionally create a closed spline thru the points.
* Q3 `8 V& j# ?8 V8 H8 t) V1 x$ q' T2 }7 l* ?
STRING/ tfn(132), fmt(80)
p+ O: f+ P$ W, v! t* V NUMBER/ resp, r, theta& |1 J: T9 t$ x: x% Y
ENTITY/ pts(1000), zero
! j2 e7 y, ~. v; t' C% m, ?7 P4 g! x0 b1 d7 Z, g, I4 H- w% B
fmt = '#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@' + $; [; r% J) J: c5 T% U
'@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@'
U! X- L( K) X, E- H. C, Y+ s/ C5 l( U7 g: U6 f- e
a20: TEXT/'Enter full path to data file', tfn, resp, deflt5 L- D! f" F+ W; L' c
JUMP/ a90:, a90:, resp) F, l" ~2 s+ `! M# z; S1 `7 B6 B
8 U, s& w2 Y& V, ] g' u FETCH/ TXT, 2, tfn
. b4 X8 ~" i5 ]+ a4 D# w' W& t, Y tfn = &SFNAME(2,IFERR,a20： ）
8 T& w. ^3 b- k
$ Q/ x% y0 @! @$ \9 X7 w( w $$ Find the space between the columns and set up the format string
Z' L$ U6 o" t# _$ V9 Y6 }' Z9 p RESET/ 2* Y- E2 @4 k. v
READ/ 2, USING, fmt, tfn* g s$ [; \: @+ a' J8 f
ii = 1
- _5 \5 G# ^7 Ya25: jj = FNDSTR(tfn, ' ', ii + 1)
2 t5 v1 z! R, Y- s( S8 @ IFTHEN/ jj == (ii + 1); d/ ?' p8 c' W ~- {
ii = jj( r) d( a" U) K' d1 A6 I
JUMP/ a25:
$ G% G( q# o- W6 | ELSEIF/ jj == 0
8 S* t ?7 X( O3 I0 ?, z4 m jj = FNDSTR(tfn, chrstr(9), ii + 1)
m; \. v+ J/ M- p: M. F ENDIF
- ^: `7 L' U+ X fmt = REPSTR(fmt, '@', '#', jj)
! {0 l" r" C' `4 ~
2 H' d8 d: a3 m% r8 u9 Z( ? zero = POINT/ 0,0,0! G: o7 J: O' H1 O" w# `# i
. `/ V0 X. m& ? RESET/ 2 p1 K) ^8 [& v+ d3 g
ii = 0) @* Y1 }% g4 J% e% P# H3 l
a30: READ/ 2, USING, fmt, IFEND, a70:, IFERR, a70:, r, theta/ x5 O# x, M; E1 q
pts(ii = ii + 1) = POINT/ zero, POLAR, r, theta5 ?' U4 U* _+ r( E! ~2 O$ E
if/ ii < 1000, JUMP/ a30:5 B; r$ Q+ Z) Q# U E4 O j
2 r5 y; W9 H' ]5 G+ ^" Ga70: DELETE/ zero
9 V- `& v5 _2 e: w2 C FTERM/ TXT, 2
. x' c" M7 ]2 ?/ M( \7 E4 @6 k: F$ p
VIEWE/ AUTO
) b h4 Z6 W. }' T/ Q& g" F" j8 ^, }- w8 v
CHOOSE/ 'Create closed spline thru ' + istr(ii) + ' points?', $
9 \1 p% X& R, r5 d 'yes', 'no', deflt, 1, resp
6 P3 D4 s& N% K1 [& Y IFTHEN/ resp == 5- L$ u2 ]$ v* Q D3 }0 K& `3 ]4 G
BCURVE/ pts(1..ii), DEGREE, 3, CLOSED' u/ q: e( N9 K' ]
- w6 L7 l. D# b5 |
CHOOSE/'Delete points', 'yes', 'no', deflt, 1, resp
8 n* }$ [+ ~& V1 F7 ~ IF/ resp == 5, DELETE/ pts(1..ii)
0 d2 K2 V1 i. j6 n. H% Q: d" L ENDIF% X5 p, S7 S7 ~1 D; X' J) D
7 T8 [6 F! H6 S8 _% Q7 H+ h3 N
a90: HALT: L& |4 `7 @8 m! L% `1 P0 |
/ ?; q9 w* D# o7 z% D
* ]/ E8 h) b2 K
给你个例子，自己改造一下 |
|
发表于 2006-11-2 21:57:28