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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：
( ^) Y! P, W5 ^
& z l! k' t7 I! W3 r0 I" QSub A() '本程序以20圆的圆心为坐标原点
# T8 V! K/ m. \0 m9 i Dim Y As Double '左上方小圆圆心纵坐标
8 A* Z* G2 @6 w8 B) P, Y Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量2 ?) {* Y* F: D C
Dim R As Double '小圆半径
' Y0 x: E) A0 G% Z6 T8 x Dim O(2) As Double '坐标原点
! V) ?# l) Z. }0 n Dim O1(2) As Double '左上方小圆圆心* w4 G/ [: Y1 v% |0 Y3 ?
Dim O2(2) As Double '右上方小圆圆心
& {* `* |* m& z6 ?7 ?' h$ c Dim O3(2) As Double '右下方小圆圆心3 {* i- E& a4 H' Z
Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点
! W2 M6 m! x( L. [- c Y1 = 10 '迭代运算边界条件0 t7 n6 u1 _* B' y! U
Y2 = 20# b; c; W2 M7 |! J1 L
Do '计算合适的小圆圆心纵坐标
& q4 [* P5 y3 O4 y/ E6 q2 o Y = (Y1 + Y2) / 2* s4 v! Y0 f$ v$ Q
B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2); T% N: S# }0 x# j9 [" f& a5 @
If B = 0 Then
6 ]4 @8 [! W: T* k0 F1 Y5 Q2 V Exit Do2 ~/ A' o8 ^ b
ElseIf Y = Y1 Then
4 C( A9 `1 M: V8 a9 }/ a5 F B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)
3 c+ }: W! E# {7 N) E3 u7 j2 g; g If Abs(B1) < Abs(B) Then Y = Y2. s" @- Z0 b: t* G$ Q
Exit Do
. @5 V5 B2 W+ P* p5 V4 t ElseIf Y = Y2 Then* K% @( H1 P$ U
B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)
6 B- i6 \9 ^ m9 n6 L* B1 k+ G If Abs(B1) < Abs(B) Then Y = Y1
+ T6 m" V* \+ X& a Exit Do
" _" p* [6 @9 X3 P G, G ElseIf B > 0 Then% A/ N9 O& H7 M e7 ?
Y1 = Y
; f, `" f5 c* J5 b1 e Else" e8 e- J8 ]" c& g0 E" n
Y2 = Y
& r' D# I0 @# W7 p End If* N$ v e- m1 q v% \. o
Loop8 S, W& @& F- }+ A$ `. M; x
R = Y ^ 2 / 40 '小圆半径
/ _; h% D) ^8 X1 I5 b6 L O1(0) = R - 10 \$ X# ?" @ ], G: w6 { L+ R
O1(1) = Y '各点赋值" ?9 c2 J# `$ |
O2(0) = Sqr(0.5) * (10 + R)
2 D: m8 \$ }/ [ n5 P5 U5 N O2(1) = O2(0)
& E2 I9 \- Q7 \ O3(0) = O1(1)
" c' ?! j. L( m$ k" b O3(1) = O1(0)
) k. @ N( O: m$ ]/ } P1(0) = -10: L L- z v4 @) R
P1(1) = -108 ~$ i) |+ j5 x7 q& O
P2(0) = -10* k4 g l- h" p/ R H4 _: b* F$ Y
P2(1) = 20
" i3 M' Y9 K2 \: x P3(0) = 20
5 V4 u8 i* N o; _' E P3(1) = -10, h# t r9 X) T; x
With ThisDrawing' ^3 d4 z# A# O/ T0 ?( z
.ModelSpace.AddLine P1, P2 '画直线7 y: B* x. M7 S
.ModelSpace.AddLine P1, P3
; H& I) [' h# E .ModelSpace.AddCircle O, 10 '画大圆7 r) F) c: g2 I- q" ]9 s9 z
.ModelSpace.AddCircle O1, R '画三个小圆
% v3 V0 H% z2 U) U, { .ModelSpace.AddCircle O2, R
9 _; P. s) K; g& P .ModelSpace.AddCircle O3, R
; W4 x8 q9 A( k8 |* H8 } End With
3 [+ h- ]* }, e" Q( h0 P9 |; F+ `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