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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 z' ?: g$ W8 V2 x) c
. _! f) r5 V# V& a0 N/ S( CSub A() '本程序以20圆的圆心为坐标原点+ A/ m) c3 k7 o5 V
Dim Y As Double '左上方小圆圆心纵坐标; Y7 @. c" F$ u6 \$ E' P( z0 J
Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量- {0 Q! p+ v E4 s: A4 O" m
Dim R As Double '小圆半径% D* P# \2 N5 H* F
Dim O(2) As Double '坐标原点
4 `9 q3 W/ c/ C" Q) }0 ~ Dim O1(2) As Double '左上方小圆圆心
* J/ W' d0 L- _ Dim O2(2) As Double '右上方小圆圆心3 b: e$ c. G f' \. p1 x" @1 I1 `; U
Dim O3(2) As Double '右下方小圆圆心
- P0 s0 X8 G% u; c& ]0 z: I, ? Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点3 ~% I2 H5 I$ [) ~% g9 {5 k
Y1 = 10 '迭代运算边界条件
" O) F' P: T" B0 _- |: I& m Y2 = 20
' K7 p8 x- k* A Do '计算合适的小圆圆心纵坐标
* C u6 Q4 }+ Y1 L I/ L Y = (Y1 + Y2) / 2
& b) I- s9 B: x- ?9 j9 e6 H2 o7 ` B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)
0 }# ?( X, m7 X& ]# u2 `( h- ] If B = 0 Then
" O7 t: F' ~$ g% \9 _ Exit Do- K" j) V c& H2 ?7 Y
ElseIf Y = Y1 Then! m+ {" l7 w8 R; j* ]5 y# ^
B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)# O% L) B0 w7 c% I: C
If Abs(B1) < Abs(B) Then Y = Y2& N1 l! @; ^/ c1 G
Exit Do
* J- c$ L1 G0 a2 c% a ElseIf Y = Y2 Then& E4 }+ C1 H& D) j8 s
B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)5 d7 l9 B, H8 O1 i. m* G; E4 L1 u* b
If Abs(B1) < Abs(B) Then Y = Y12 V0 d* {; ~% W B9 R! d
Exit Do* z& N; D* J& ]
ElseIf B > 0 Then" l# v- r- a+ e* \( T3 ?' [
Y1 = Y" F' t# _" V* X# `4 s
Else
1 m H6 r9 `! l2 z+ { Y2 = Y
6 a' g& d0 F. g; _$ h End If, T6 l( w$ `# p
Loop
# }5 y: D5 ^7 J' f# H0 A( }# U R = Y ^ 2 / 40 '小圆半径2 R5 X5 G9 M# ?
O1(0) = R - 10
! }- b$ h1 o' ^" v' W5 B- Y4 i O1(1) = Y '各点赋值
* H& J. w3 o( ^$ l O2(0) = Sqr(0.5) * (10 + R)" ^% s5 b: u T. t7 m
O2(1) = O2(0)$ ?/ {* ?4 X2 I/ ^7 U8 ^, [
O3(0) = O1(1)
3 u/ X, E3 U5 `, I% r* T5 z O3(1) = O1(0)
% V' t7 _7 x- ?! p: X# u P1(0) = -10) s$ g. d0 t! O( i: y" _
P1(1) = -10/ e* w! A- j L3 L1 Z w
P2(0) = -10# ^) k b8 |- S7 S7 `; D+ a
P2(1) = 20
+ ~% J: K) h" x+ @2 x" [( c9 l: X P3(0) = 200 ?2 K% F# ?+ B# J* @6 E: f
P3(1) = -10: e o( C V; Z T: V6 W
With ThisDrawing
* z5 e, K. j* x/ O* f1 j/ M .ModelSpace.AddLine P1, P2 '画直线
; @6 _( F/ P) j/ [- E/ T6 P .ModelSpace.AddLine P1, P3
: X: W) {' K6 }' ^+ ^$ q4 Q6 _ .ModelSpace.AddCircle O, 10 '画大圆* p7 q9 s; N6 Q0 d! {6 w
.ModelSpace.AddCircle O1, R '画三个小圆
' {4 w: f3 C( K( x4 P8 {2 X7 F8 s .ModelSpace.AddCircle O2, R& o; e% v# A! U9 u6 E
.ModelSpace.AddCircle O3, R5 q m+ j3 @1 }; a* a: O; l" N; g
End With( |6 X6 v$ j$ X7 K0 S+ T* ?; l8 J
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