|
|
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
- E$ }! `+ @! V. M
1 K% }0 V% R/ c/ Q" W# c $$ This program will read an ASCII data file consisting of polar point) `! P u( I1 R- a/ l
$$ data in two columns and create up to 1000 points. It will also
: ^" z+ ]4 o( {+ I" t $$ optionally create a closed spline thru the points.
. p6 R. ?" ^, u0 D' o! r
2 m5 |8 D" c0 P, E |7 x STRING/ tfn(132), fmt(80)" c2 Q& x9 y l$ r9 V0 d/ l5 e/ N
NUMBER/ resp, r, theta0 |$ y L# ^: F/ b0 l- E
ENTITY/ pts(1000), zero
# }! r$ F: A0 ^$ x
8 S5 ~; e* Q9 L9 ^ fmt = '#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@' + $
. o9 L1 i. O4 ~# H2 s: j, x '@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@': ]1 V1 C+ F1 r" z3 A- X
* l' F4 {" k; F S4 ]1 S
a20: TEXT/'Enter full path to data file', tfn, resp, deflt
% R. Q" D. }( h, H- ~ JUMP/ a90:, a90:, resp* y2 Z! W4 @3 ^
2 L- |8 L9 N& P8 a% R+ i2 }, ~
FETCH/ TXT, 2, tfn
9 P4 d7 k, V9 R8 p2 Y tfn = &SFNAME(2,IFERR,a20： ）; R0 Q: t* v5 ?8 C) a# w5 V
7 P. a# ~4 G! ]6 C5 N# ^ $$ Find the space between the columns and set up the format string/ s1 H; D- S% H4 |
RESET/ 2
, v( f1 ]" ]5 c/ V! y5 z5 C READ/ 2, USING, fmt, tfn
# D, K) W: w! ]8 u O; p9 D0 O ii = 1: ?3 |4 Z q/ o7 d o0 I" D
a25: jj = FNDSTR(tfn, ' ', ii + 1)! H# U' s) D3 D. e E
IFTHEN/ jj == (ii + 1)3 l) C) j" \; ]8 f6 F: P: l
ii = jj2 A3 \4 g/ w7 ^) h; n5 _& f5 n
JUMP/ a25: e% ~, ]1 A( c( P4 j/ i. u2 b
ELSEIF/ jj == 0
8 z8 v5 c4 D4 { jj = FNDSTR(tfn, chrstr(9), ii + 1)
+ ]* O8 T' s M/ M) Z. I ENDIF
~ J, p; I/ {9 f* n- P- p6 c fmt = REPSTR(fmt, '@', '#', jj)$ `7 {3 f; a* m) a+ a5 w* i
6 v9 C3 {/ _) |' n$ a k1 B' f
zero = POINT/ 0,0,0% {( I$ E5 N1 o
4 r; w0 i" E. {8 z5 d' e
RESET/ 2
; m- a) z! j9 ~3 Z( z2 l% k ii = 01 J& L1 S- E8 T' L' d
a30: READ/ 2, USING, fmt, IFEND, a70:, IFERR, a70:, r, theta2 b2 ~+ Z+ k/ B9 W( o
pts(ii = ii + 1) = POINT/ zero, POLAR, r, theta# ]" P" @7 Z+ h2 t/ Z3 y
if/ ii < 1000, JUMP/ a30: _# n5 p: P+ F& r% G4 i/ E/ l4 J
! T- Z6 H; {; ~" S `: b
a70: DELETE/ zero
s' D2 ? n9 P: C* j6 s1 H6 I FTERM/ TXT, 2/ v( h4 F ]/ E- |% I- U9 R0 G
8 b9 }8 m" e; D5 A
VIEWE/ AUTO7 `! F. l% f2 x) l( z) ~( X: U2 U; T" t
5 c2 p3 Z- \, n) `4 W/ V% j CHOOSE/ 'Create closed spline thru ' + istr(ii) + ' points?', $4 s3 C& ?- y4 M, Y- k; D$ k, d
'yes', 'no', deflt, 1, resp
6 Y8 j* K; c& ~ IFTHEN/ resp == 5
3 S8 ]! I @+ P0 B BCURVE/ pts(1..ii), DEGREE, 3, CLOSED
- x- m: f2 W$ C8 S! G) [ m
' E8 m2 |+ `( M9 b2 Z* v CHOOSE/'Delete points', 'yes', 'no', deflt, 1, resp$ }. x5 b: [, d5 C
IF/ resp == 5, DELETE/ pts(1..ii)% `8 _5 X1 O- t$ p& p$ W5 R( j: R
ENDIF
# G! `( M9 v0 B9 D1 h. |6 a( M' O/ n- }; b' I) x
a90: HALT
/ U N3 V/ n% ~* ]
8 e% F B) B* n' L9 v2 D) m( F; l; K8 A( l) F% n
给你个例子，自己改造一下 |
|
发表于 2006-11-2 21:57:28