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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：
h' y5 z0 B3 T2 I! k) S. Y+ U & D- @7 @4 i- f# ]! ?
Sub A() '本程序以20圆的圆心为坐标原点7 ^3 b( p$ l$ B% d' e S0 H
Dim Y As Double '左上方小圆圆心纵坐标
1 S# @) E- g( n Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量
' m' y* \9 H( Q ^8 E! W w2 L; c, ~ Dim R As Double '小圆半径8 G+ P( M3 i6 i) V
Dim O(2) As Double '坐标原点
# ^% e2 b9 v! N- {* A' Z Dim O1(2) As Double '左上方小圆圆心
/ o; u) q# O. u# l Dim O2(2) As Double '右上方小圆圆心: p& t# J1 m( s0 Y1 J5 l3 d
Dim O3(2) As Double '右下方小圆圆心
* l+ q8 z4 b. u9 o( c: q- M Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点& G8 D! M v6 ^8 z4 o! ^8 \" f
Y1 = 10 '迭代运算边界条件
0 c K, Q0 V2 Z Y2 = 20
+ e0 R4 W3 A% l9 X5 m Do '计算合适的小圆圆心纵坐标
. n8 S" s6 M4 D$ {8 {& { Y = (Y1 + Y2) / 28 c# N' K9 _' ^5 N. s1 i
B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)
0 T6 P6 c* p+ N( ^, G( N( T If B = 0 Then
3 I0 |# r" z; \8 H, \ Exit Do
% B: Y' e2 a1 C ElseIf Y = Y1 Then; s8 @! M4 }+ D% u4 H9 |, U
B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)
9 r# r% H, _ { _6 V If Abs(B1) < Abs(B) Then Y = Y2- x2 g: a. C" [, _* i2 ]
Exit Do
# c/ G) v3 n; h& n: G! L: K/ C6 n ElseIf Y = Y2 Then+ E5 r! T$ `, X) C3 @
B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)
, f% Q) Q& v8 ~$ m$ \ If Abs(B1) < Abs(B) Then Y = Y1, o' H9 o& h+ B' G7 i
Exit Do
- t( Q0 j" i5 M ElseIf B > 0 Then( t0 u' t$ L9 m1 v
Y1 = Y: `" X" e/ w3 P
Else. d7 O' g5 I. Y, r+ w
Y2 = Y R- [9 k$ o# v. n
End If, P; M% ?' M8 M: L
Loop- z6 h9 ^/ W } i+ ]( L$ t
R = Y ^ 2 / 40 '小圆半径
0 U& m" S5 \9 M! S! L: @& f( v O1(0) = R - 10
8 D! l8 L$ e6 r/ o O1(1) = Y '各点赋值* K, R/ r# @- g1 {' `
O2(0) = Sqr(0.5) * (10 + R)
8 } O; I7 n8 g O2(1) = O2(0)
8 L2 b2 {2 a( \6 M" @ O3(0) = O1(1)
7 E7 I0 I4 T) d, C# q9 R O3(1) = O1(0)
$ F: F5 k, O' `. g1 M% F) Q: p2 W P1(0) = -10& I2 o5 k8 [( I6 U5 d) s2 }; b
P1(1) = -10, V9 s- m9 [1 C7 y! A
P2(0) = -10
5 R% w2 H R3 G! e% Z3 A P2(1) = 20' H. X m8 a, T' R' G
P3(0) = 209 Z$ k$ }6 A& q( a0 E3 L2 j
P3(1) = -10: @+ Y) |, v/ \, P
With ThisDrawing
' k: X4 l9 @2 _2 F! m* W .ModelSpace.AddLine P1, P2 '画直线
2 D6 Q7 t6 ]1 i7 G- c .ModelSpace.AddLine P1, P3: w1 O! S( e( g0 |5 {2 x0 B
.ModelSpace.AddCircle O, 10 '画大圆- ?! b4 L- A+ ^. C) C: g
.ModelSpace.AddCircle O1, R '画三个小圆# U% H, G' H! j" R
.ModelSpace.AddCircle O2, R. \* E0 d0 G8 i; i) O& `1 {
.ModelSpace.AddCircle O3, R& B, P, J" c( P& m- {; f, a$ u
End With
# Q7 f; G, x9 m9 ]& @8 gEnd 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