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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：
2 [ f+ ? G" d* s, W5 z2 I
% l1 j& [0 ?. \Sub A() '本程序以20圆的圆心为坐标原点
' X# p- P$ ]9 {' t( \' W2 R+ } Dim Y As Double '左上方小圆圆心纵坐标1 v. v5 y- W# T1 v' G- I
Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量0 X. D9 i* J1 o0 s5 g# E
Dim R As Double '小圆半径
) {( ^* s! |2 M Dim O(2) As Double '坐标原点/ q' W6 I- _3 @' Q6 c# @2 k4 q" G
Dim O1(2) As Double '左上方小圆圆心: [: q+ o$ ?8 R
Dim O2(2) As Double '右上方小圆圆心 l7 `& Q" h& a& N* {8 I) w/ u
Dim O3(2) As Double '右下方小圆圆心; S# M2 | j# q& f& ?7 M1 g
Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点
+ H- Z* l9 p4 x# ?: `0 ^0 C; n Y1 = 10 '迭代运算边界条件
" U& V& z& J& ^4 W( [, R: S Y2 = 20) h$ o6 u" I( d9 Q
Do '计算合适的小圆圆心纵坐标4 I3 j( l; `1 ^$ g, ^* L: c" }1 q
Y = (Y1 + Y2) / 2( o7 \3 v( G X7 |0 k
B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)
# [1 O6 J( r% B) N- Q If B = 0 Then" @4 l& N/ l1 ]+ m; u
Exit Do) S7 |, F: B+ O' r
ElseIf Y = Y1 Then
$ o3 Q# o" _$ V6 u3 i" @ B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2). U2 y: H9 i# |% q
If Abs(B1) < Abs(B) Then Y = Y2
& s5 |, f* B) h- j- g Exit Do
# x4 w& I. M" @' o$ \& h2 ] ElseIf Y = Y2 Then
7 n y7 p S. b" G9 k B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)
0 c" f; t1 V l$ b! B8 G If Abs(B1) < Abs(B) Then Y = Y1* T; c% H5 ?+ b1 M: d" s
Exit Do
1 R5 w! Y' r0 H0 [ ElseIf B > 0 Then
, A I8 a( r; t1 J, Y' |2 h Y1 = Y# B# X$ F, s r' q6 f
Else Z& X. m0 P/ Y5 [, g7 [* j+ d
Y2 = Y
2 @5 g; ^: q2 }# e6 s End If
' A& P" I4 h6 t5 v4 u Loop
# J. x3 Q1 A- B4 o R = Y ^ 2 / 40 '小圆半径' o$ g' G* z5 t* X% _
O1(0) = R - 10" }5 a' }4 `$ u5 _
O1(1) = Y '各点赋值 A; ?- i0 q/ W7 ]
O2(0) = Sqr(0.5) * (10 + R)) m' s9 B& s" n: b
O2(1) = O2(0)# M% I/ S# z7 g4 c- R0 i7 g
O3(0) = O1(1)
5 }0 D& Y. M* J! y9 O4 ` O3(1) = O1(0)5 w4 e5 A% _: ^3 o) x
P1(0) = -101 m# U9 d4 b) Y5 |2 k
P1(1) = -10- O2 j; z3 J5 R
P2(0) = -105 i( l8 m* r5 B: r3 }
P2(1) = 20! \/ n0 J0 x) ^; n/ R
P3(0) = 20
, Q+ Y1 U' ?/ {, I P3(1) = -108 O/ Z$ o7 J& U0 `
With ThisDrawing7 m; a- K$ G s2 |6 l. W9 _
.ModelSpace.AddLine P1, P2 '画直线4 [) R- b, o: g" A/ i; g V8 Y
.ModelSpace.AddLine P1, P35 W$ W! @3 a1 F% H
.ModelSpace.AddCircle O, 10 '画大圆4 o, K+ c" \# F% n- x
.ModelSpace.AddCircle O1, R '画三个小圆
* a3 L- h# M \0 ~* I; b .ModelSpace.AddCircle O2, R1 V H' i& j; S: N. ^3 \
.ModelSpace.AddCircle O3, R
1 d! k& n. {; n8 l# F, H+ l1 R' O. ] End With
1 u2 |' L2 n5 q6 t' U2 a; nEnd 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