|
|
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! G# E3 L. L, @9 ~2 X+ @
( B1 a H# }$ K9 R2 f1 A $$ This program will read an ASCII data file consisting of polar point# j7 U' i! s6 N) M% B! A( r% ]
$$ data in two columns and create up to 1000 points. It will also" i. y G* |) ~4 w+ H& T/ N
$$ optionally create a closed spline thru the points.
) o4 b p8 v- D- r5 k! }
8 d6 X5 D9 [" p9 g! U. m( k T" Z# } STRING/ tfn(132), fmt(80)3 Z; l; H3 T# `+ v: }
NUMBER/ resp, r, theta# g" p+ y$ T: H$ U; I
ENTITY/ pts(1000), zero
8 E) X, w6 r: F! Y
8 C! V% K4 w: d( l9 j+ \+ P fmt = '#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@' + $
( z1 G y- N5 n) b '@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@'
( C( L7 k; S9 D S1 Q
) M5 A# S5 T: t8 i& _a20: TEXT/'Enter full path to data file', tfn, resp, deflt. q* \" h" V# L! U3 c7 |+ `
JUMP/ a90:, a90:, resp
+ N1 v: G) ]3 i- b ] }; X* ?# I8 `+ @
FETCH/ TXT, 2, tfn
6 B2 f/ J. A* S7 N* B tfn = &SFNAME(2,IFERR,a20: )
- `" S1 ^9 _9 L8 z w, c1 \, ?
; E2 y" f% s6 t1 _( M6 [' l& v4 _ $$ Find the space between the columns and set up the format string
, x) i2 G C8 m y3 d0 C RESET/ 2
3 O! w; ^- T& j READ/ 2, USING, fmt, tfn
) l; n' j" q) {- z! ?$ H ii = 1
# e6 d& V. F; E. h6 T. \7 Va25: jj = FNDSTR(tfn, ' ', ii + 1)
9 l, g' b. k& B! A/ w: \ IFTHEN/ jj == (ii + 1)
2 Z- j$ I! M1 E, r5 s4 k) t2 F0 e ii = jj
; |1 I& H. \% @ U4 M JUMP/ a25:
. E# g4 n3 a9 o ELSEIF/ jj == 01 L) ^/ B4 d4 c' Z& J
jj = FNDSTR(tfn, chrstr(9), ii + 1)) C6 r3 U `% I9 x: g" E. [0 e; |
ENDIF5 x5 U1 I4 h: E- M; U
fmt = REPSTR(fmt, '@', '#', jj)
$ Q$ {0 I. E" v$ A3 p' i! C% D9 ]$ n& a6 A. `0 q
zero = POINT/ 0,0,0* \4 ]" I3 F9 h) {0 K& I+ {; C
% }; n, n# P4 G) T) [ RESET/ 2* n; h1 N3 e. ^3 [
ii = 0
# u& I& G% k) E: F9 ga30: READ/ 2, USING, fmt, IFEND, a70:, IFERR, a70:, r, theta& r- U( j7 G( `
pts(ii = ii + 1) = POINT/ zero, POLAR, r, theta/ l* u; i/ O7 x! o, X- E
if/ ii < 1000, JUMP/ a30:) _4 z! R4 x2 h9 |% i6 s
) I! j1 D" w! J% m4 D
a70: DELETE/ zero- ]5 M+ V( M4 r! q- S5 M3 n6 F1 ^5 }: O
FTERM/ TXT, 2/ D' V9 v6 T" u! R d8 y
* s R( k! I5 B) w. h2 K VIEWE/ AUTO# b* [! M. c' v0 l* e v, T
3 u- _5 c# A1 ~5 W4 @. R" H, Q CHOOSE/ 'Create closed spline thru ' + istr(ii) + ' points?', $: v' Y5 M' _ P% G, @
'yes', 'no', deflt, 1, resp9 ]8 L* C9 J) W/ L
IFTHEN/ resp == 58 @4 J9 o, ?( ?0 u
BCURVE/ pts(1..ii), DEGREE, 3, CLOSED% _! E0 I: f. j8 x4 f8 ~# N$ O1 A
2 X. k: m, a* c) P: X
CHOOSE/'Delete points', 'yes', 'no', deflt, 1, resp
+ n2 y, T: z, c IF/ resp == 5, DELETE/ pts(1..ii). B" W9 {% O: B+ r6 j8 ~- o: l
ENDIF6 \4 Q4 `1 f4 m. x1 i) \& m4 Q9 ?
' ^8 R* B3 j1 N* s2 w# Ga90: HALT# w) b( C9 E9 D
5 Z7 G5 N9 \. X& {
$ m! {* Q7 R/ C3 f# Q给你个例子,自己改造一下 |
|