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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：5 |! C a2 F8 R' t, E4 c: k9 ^
4 n& I, L/ C& FSub A() '本程序以20圆的圆心为坐标原点! b& s y8 f7 J- x8 d7 C! y/ F% J' K, b
Dim Y As Double '左上方小圆圆心纵坐标0 e# s$ T% Q' R S
Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量/ o# h& n% A% R; ?
Dim R As Double '小圆半径
& Y6 m* m* p5 E& U% F9 m# x* | Dim O(2) As Double '坐标原点1 Q, r3 }0 }9 E* v: R# j @7 b: c
Dim O1(2) As Double '左上方小圆圆心9 h8 e/ ^) B, Q& e
Dim O2(2) As Double '右上方小圆圆心* X( R8 P5 i. k0 V* Z
Dim O3(2) As Double '右下方小圆圆心
1 F8 V* @+ j9 L$ d7 [. Y6 ?# I5 n# c Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点
. T0 m: e: h: R+ ?1 e# \: { Y1 = 10 '迭代运算边界条件: I0 g1 [ k$ [7 I# a; p4 }
Y2 = 20
8 c* G) m, u: J9 q" @; e& U Do '计算合适的小圆圆心纵坐标! ]0 c7 E& E! v
Y = (Y1 + Y2) / 2( e. D7 V: `5 k( Z2 }+ r+ h. l
B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)
# j! U3 ^- n- V- q- F If B = 0 Then
$ k" \- r8 L( d( _ Exit Do! v! m9 D: ]6 Q2 e
ElseIf Y = Y1 Then z* ]" [: ?" O+ ?
B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)
9 q+ I/ w3 `$ [+ @3 o. y+ @/ `' K If Abs(B1) < Abs(B) Then Y = Y24 v0 _. T7 l: _2 v" v1 E# F
Exit Do
9 H& m: F: Z' s% d- B" J: @! Y ElseIf Y = Y2 Then5 H' |1 e. r8 i7 d5 Z& j( [
B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)
$ A' M. J: ?& x L If Abs(B1) < Abs(B) Then Y = Y1
9 n8 [) k, A1 n( b/ w. y) w, d Exit Do
) i4 z' J& y# A: g% q4 D a ElseIf B > 0 Then
7 h- k+ @) _! w' m& m# M& c. m Y1 = Y4 G2 [6 o: x# o9 [2 P
Else7 r& S0 s2 n+ ~
Y2 = Y5 e% t1 y4 k. f! V' S" B: h
End If; p2 W& X( t! [8 e
Loop
: K9 ^9 @& t D R = Y ^ 2 / 40 '小圆半径/ ]9 [; o4 x. ~
O1(0) = R - 10& h0 u1 F* }+ O' ?. a
O1(1) = Y '各点赋值
& P6 {! r2 g7 |9 W6 o O2(0) = Sqr(0.5) * (10 + R)
1 r: j8 x" D$ P, I5 ~6 t O2(1) = O2(0)8 M Y; ?; E$ u" G) A
O3(0) = O1(1)
- F2 F2 k5 o4 P: r# H# c0 I' V# P O3(1) = O1(0)
/ ~$ V% R) _ e+ e P1(0) = -10& `7 W3 m9 i, w) l$ S* p$ d
P1(1) = -102 o5 h6 o" D6 T# T$ D/ V& a
P2(0) = -10
$ K! k S" a( e P2(1) = 20, E$ X, r4 z: G4 b8 w
P3(0) = 20
' w7 H/ m' }4 S1 c3 a, y P3(1) = -10+ A2 _. u9 a$ T
With ThisDrawing
9 V" W8 I3 v4 O .ModelSpace.AddLine P1, P2 '画直线8 q: L3 U% `) |5 C4 e& v2 x
.ModelSpace.AddLine P1, P3
8 F1 l8 Q6 u- ~3 g8 b .ModelSpace.AddCircle O, 10 '画大圆
% ?5 U7 T/ H! f$ P .ModelSpace.AddCircle O1, R '画三个小圆
y6 y! H% k2 E9 A# H: Z .ModelSpace.AddCircle O2, R% }9 v& ?6 Y9 d! k0 Y! s9 e
.ModelSpace.AddCircle O3, R8 u" j6 }" r, n: [
End With! [7 v; @5 |0 Y: {) ^( R& `
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