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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：4 h* M+ D' V4 i5 ]' u `5 p2 ~+ c; c
( H+ P$ R% |+ u3 m6 LSub A() '本程序以20圆的圆心为坐标原点& S% B4 V; n$ u$ x2 N
Dim Y As Double '左上方小圆圆心纵坐标, q- O3 `; v' v c. e3 q6 |' B
Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量8 r( j/ |) ?7 m' Z! r$ ~
Dim R As Double '小圆半径
0 t( \ v/ x" {$ g2 j0 X Dim O(2) As Double '坐标原点5 J# v& [2 m) y
Dim O1(2) As Double '左上方小圆圆心
" U% ^/ s9 ^, X1 C Dim O2(2) As Double '右上方小圆圆心
( z/ h1 T1 K! ~% N Dim O3(2) As Double '右下方小圆圆心3 l0 ] |0 [. ] S7 S
Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点 U/ h5 ?2 J. Z1 M, c \$ X# X
Y1 = 10 '迭代运算边界条件
" I- `+ V5 J. m& X: G6 B% i$ p Y2 = 20
1 }7 C j% t9 z7 Q6 l0 A3 r Do '计算合适的小圆圆心纵坐标
2 \& S% O' J9 h Y = (Y1 + Y2) / 2
0 l( g* B& f1 c, Y9 @) ] o B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)
4 `1 C2 u7 ~8 c" w- b# Q3 F If B = 0 Then$ E* T' ~! j0 j/ c
Exit Do
5 X% H# [" K5 d% B' c ElseIf Y = Y1 Then, E2 i' g1 w. x
B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)2 z( X; x1 t* p, R$ ?: L @6 e: Q
If Abs(B1) < Abs(B) Then Y = Y2
3 K$ }# n6 z( ^ Exit Do- ^) t" ?% `9 ] F# T
ElseIf Y = Y2 Then
- a8 E" |( G% D5 G+ ^ B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)3 _5 r! o9 r/ k& F7 f1 |6 K
If Abs(B1) < Abs(B) Then Y = Y1; V5 T6 n l. }7 `+ S" {$ J
Exit Do
6 ^( ]; `, e* P: m/ [ ElseIf B > 0 Then
% @# G3 l' b6 [ Y1 = Y8 M+ z' s* }8 l T6 D M; E
Else& `% ^) z2 s& A8 U6 a
Y2 = Y
1 |& M; C# {& D# W& ? End If
& W `# {2 @3 I6 m Loop$ G H9 t* M* [' f' Y
R = Y ^ 2 / 40 '小圆半径. _( [% S, t. t
O1(0) = R - 108 W4 f( v! S3 v! i% T h J
O1(1) = Y '各点赋值! Z7 o- g6 g" h
O2(0) = Sqr(0.5) * (10 + R)
7 U' b( a( S& E2 ? O2(1) = O2(0)3 [( x2 W3 Z- R) B: b
O3(0) = O1(1)
2 ]4 x2 ~3 S5 l2 q* h4 Q: ^ O3(1) = O1(0)! E. l5 f* o+ y; h) R4 w( Y
P1(0) = -10
1 C0 H( L* r0 [4 v% K P1(1) = -107 \3 Q# D. V/ |! f. |/ w/ m
P2(0) = -10
1 j- U" K2 L, A' d# l L+ F4 H9 K P2(1) = 201 m( F" R* R/ F7 P- @ X
P3(0) = 20! `- g, B- N; m4 j5 r" D0 B; y
P3(1) = -10" T$ \1 ] f {4 x
With ThisDrawing
/ ~& ^/ N2 G, M: N .ModelSpace.AddLine P1, P2 '画直线
/ Y* L- j7 l& S" U .ModelSpace.AddLine P1, P3, ^3 J* w4 k! S% o; z
.ModelSpace.AddCircle O, 10 '画大圆; \6 t! h5 c% w- `' Q' L
.ModelSpace.AddCircle O1, R '画三个小圆0 p9 s& w5 t( u% m5 V; x' G. i
.ModelSpace.AddCircle O2, R
( D' Y3 M& k7 A5 t, D5 A) u .ModelSpace.AddCircle O3, R
- u+ _/ X! g* |. ?/ k2 A: A End With
( Z5 ], g* h* ]4 HEnd 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