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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：
/ m$ Q7 e0 @ G, ~ : Y7 k4 u7 o5 b1 n Y9 v+ I
Sub A() '本程序以20圆的圆心为坐标原点
: q$ u5 ?% W/ r" Y+ G% \ Dim Y As Double '左上方小圆圆心纵坐标& c8 `4 t) i e) a4 ]" j- |
Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量
( m% E' Q3 c# ~! b9 E; l* o Dim R As Double '小圆半径4 }2 H$ g, W) G
Dim O(2) As Double '坐标原点: P& t; C; ~* @) |4 B
Dim O1(2) As Double '左上方小圆圆心
8 W7 Y4 k9 ]7 O Dim O2(2) As Double '右上方小圆圆心
~. Q; T, s7 q8 c Dim O3(2) As Double '右下方小圆圆心
5 [4 q) q; f [8 o9 I, S6 B Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点9 Z- J: l) R. ~/ j0 b* C
Y1 = 10 '迭代运算边界条件
/ J5 g2 d; a7 b: L+ e# d9 H4 P Y2 = 20
$ D$ }% m( e3 r Do '计算合适的小圆圆心纵坐标3 n# R& o9 a3 F1 W" x( h
Y = (Y1 + Y2) / 2# b; Z" ?3 Q) I! ?; N
B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)
5 e5 @3 h4 z1 z. s6 W8 H If B = 0 Then$ D% ^* p) i8 x& M, G2 l
Exit Do9 Q. r" @& p5 M- Z
ElseIf Y = Y1 Then
! Y, u4 h5 h W( x2 K& t3 H& L B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)
) {- J$ n2 z6 t7 Q6 Q. [7 O If Abs(B1) < Abs(B) Then Y = Y2+ W+ c6 N+ Z* g4 D9 d
Exit Do3 r" _/ W9 O) I; o( R0 y& \
ElseIf Y = Y2 Then
6 j' i; b; M2 E; I* Q5 i B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)+ `0 ~7 _. U. \9 k# ]5 }8 `! V
If Abs(B1) < Abs(B) Then Y = Y1
4 g* n7 r' E$ w1 B4 h Exit Do
5 Y' l; N' q' m. u# ]7 c P ElseIf B > 0 Then) u6 H O' f: U) w; z
Y1 = Y
; y p4 y9 N6 Y5 ~" C5 P& A* M Else8 K+ o) B6 T+ P3 L
Y2 = Y
& k/ H$ }2 t \) ?, h4 m0 _ End If
" `( }& N, ^+ n0 C6 b' m/ p Loop
: M+ v7 F$ y% K, }) P3 } R = Y ^ 2 / 40 '小圆半径2 H! a: Z' O+ \$ c+ M6 |
O1(0) = R - 100 h' k3 s5 {$ w3 o3 N: M
O1(1) = Y '各点赋值
1 J) s l' G6 O: t# ^$ E O2(0) = Sqr(0.5) * (10 + R)2 P: [/ c3 {1 i4 Q O
O2(1) = O2(0)% g% v8 d7 ]: x2 O5 e1 O, O5 |
O3(0) = O1(1)
7 K8 z* u. _0 d4 N* X1 K0 _6 V& O O3(1) = O1(0)
* ~& O/ u2 Y9 y0 S: o, l- U P1(0) = -10% d& o7 _7 ^- s I6 G4 T0 Y
P1(1) = -10
( I, Q* ], d+ V P2(0) = -10
& f$ o4 o9 G+ T4 X P2(1) = 20
+ J0 t/ D$ t- m3 \3 w7 F P3(0) = 20+ a- ^% h/ V$ x d( z
P3(1) = -10; v' u! ~% K% ?7 l
With ThisDrawing
* k' q% ]' _' X* G/ e .ModelSpace.AddLine P1, P2 '画直线( Q; c, G: n, B
.ModelSpace.AddLine P1, P3) `2 i' G5 n+ w% U
.ModelSpace.AddCircle O, 10 '画大圆# L( J. x# u4 c% {9 y k
.ModelSpace.AddCircle O1, R '画三个小圆3 n: |! G2 @0 p" d! n) ?9 R: C. J: I
.ModelSpace.AddCircle O2, R- P& j; l1 n7 A) T! c& ?2 E
.ModelSpace.AddCircle O3, R, [$ \ z: }8 a' `' i2 O
End With
6 r, K0 l9 R" n; c! dEnd 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