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发表于 2007-3-9 14:41:30
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来自： 中国辽宁营口
用VBA画图方法
VBA源代码：
% S4 |/ `, O t
- [7 W: K. X& W w. Z1 mSub A() '本程序以20圆的圆心为坐标原点
) b* F& B' O4 p7 d7 q$ s' ~( O1 R Dim Y As Double '左上方小圆圆心纵坐标
" X& h( G" e7 ^9 J; A3 ~ Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量' J3 Z7 l0 v. V$ \" ^2 J
Dim R As Double '小圆半径% [+ T# ~, X# n' H/ C7 Q! V
Dim O(2) As Double '坐标原点
5 ~" a, c3 L! e5 {1 g Dim O1(2) As Double '左上方小圆圆心1 R6 \8 [/ O( r/ K+ }
Dim O2(2) As Double '右上方小圆圆心
2 `! y2 U, ?( s& A8 | x% \6 Q7 t7 V0 b Dim O3(2) As Double '右下方小圆圆心
* s- M B. G6 \8 D$ d Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点! W5 |5 A4 B$ d
Y1 = 10 '迭代运算边界条件
+ i. V# m0 X$ h4 D Y2 = 20- ]2 U# X) b- R8 g- C s% N
Do '计算合适的小圆圆心纵坐标
2 v5 e, y$ E+ i: P& ^ Y = (Y1 + Y2) / 2% c& Q8 t) A8 p
B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)6 n- b" p( d, I; Y; N! i7 i$ o! m
If B = 0 Then3 C$ t- e( t* r, h/ S! t
Exit Do% ?, C+ a! \5 u+ z
ElseIf Y = Y1 Then7 Q( j" q! w. o+ _$ ~
B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)
$ V1 D- k/ o B$ D3 z+ _ If Abs(B1) < Abs(B) Then Y = Y2 U" f9 W7 V4 U3 \6 F
Exit Do! X* T8 T9 b& a0 g' \$ c
ElseIf Y = Y2 Then0 q4 a' Q* N, |) j. P) d
B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)
; ^1 k' M# i& B9 {! {" ~$ z If Abs(B1) < Abs(B) Then Y = Y1
, X. k9 Z: Q! Z+ N* y9 G! W- l Exit Do' @3 b. A5 Y4 U8 K; O
ElseIf B > 0 Then! F/ [5 U7 w& S0 Z; @
Y1 = Y
+ a4 H2 W2 p3 ^4 o) }) | Else3 t& G8 G4 J( u/ x. [
Y2 = Y
' a8 y) r2 m& ` End If
( n- h# ]: W) O' o9 B9 e+ K) _ Loop% g0 A# g8 F0 W( y+ _6 x
R = Y ^ 2 / 40 '小圆半径
# |- d0 w/ z0 o" i3 H8 g O1(0) = R - 10! P4 ?3 p6 J" S3 s
O1(1) = Y '各点赋值
! [+ l' L" n( L O2(0) = Sqr(0.5) * (10 + R)
9 ?( M7 L1 n: `) ~# D+ o O2(1) = O2(0)
: t2 ]$ `! b( Y1 T; F+ l O3(0) = O1(1)" C) A$ t5 @9 m- O, p% x
O3(1) = O1(0)$ d7 B3 A0 T. U! G9 \' p! \0 i; w
P1(0) = -10: \" Y) C! Q" V9 {
P1(1) = -10
2 w9 Q; H4 D( S* X; x P2(0) = -10
1 J! L+ u: M) Y: D" q, A P2(1) = 20
. V8 d: ^- b b f2 B m P3(0) = 20
% A7 j; z* a6 z* P3 [: g8 Z P3(1) = -10
k, w: H# F L; x' x With ThisDrawing! D6 R5 g) F2 q3 l: Y2 e3 ?
.ModelSpace.AddLine P1, P2 '画直线 z6 I% D3 c1 S+ Z; ?6 Y I& ?
.ModelSpace.AddLine P1, P30 K) L6 J! p) B7 A7 v1 d
.ModelSpace.AddCircle O, 10 '画大圆0 ^7 c8 q3 L9 G! p H. e
.ModelSpace.AddCircle O1, R '画三个小圆
; a2 G6 U" L S0 L z6 }! E' R9 t0 S/ j .ModelSpace.AddCircle O2, R
a- r3 k% o8 x2 R$ y8 e .ModelSpace.AddCircle O3, R
- d# o* ~8 d7 T% v End With& l8 Y( D4 a2 t) e3 G
End Sub |
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发表于 2007-3-9 09:43:24
发表于 2007-3-9 12:21:41
楼主
都好厉害，我没想到的都给想到了／
:L