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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：
$ w- h6 t8 j8 y. \# t
& v+ m8 M3 ~, E) T- {+ bSub A() '本程序以20圆的圆心为坐标原点
0 r; x8 m5 `! F+ m% N5 a2 X4 _ Dim Y As Double '左上方小圆圆心纵坐标
8 w( _- E% P# m Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量. t! _& |) C' \/ q' |2 Q6 T
Dim R As Double '小圆半径
* |, X9 Y" ?: a; L' K3 E# n Dim O(2) As Double '坐标原点" @' @$ r+ A1 O1 m/ n# x
Dim O1(2) As Double '左上方小圆圆心* p* U0 N: T* n5 z! t# d5 ]
Dim O2(2) As Double '右上方小圆圆心
9 U" J, ?8 {4 j+ }6 n Dim O3(2) As Double '右下方小圆圆心- L) T7 v9 v0 M$ G$ a
Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点& d& m A4 b' p+ I$ d0 ^ n: j* A
Y1 = 10 '迭代运算边界条件
: t) n1 e7 g2 \ \6 x# m9 a) Y3 b4 S Y2 = 20
( Z! \4 l5 @& H2 U' p Do '计算合适的小圆圆心纵坐标" \! p3 p5 r" \/ I+ v) U' `- F
Y = (Y1 + Y2) / 2
% v: W+ d A( k& Y+ @0 n5 c B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)2 u' q* F `4 o5 `) p+ f
If B = 0 Then0 Z4 p1 K) O! ~* H
Exit Do
1 _2 A7 r1 k2 V: Q& L ElseIf Y = Y1 Then
8 B" R1 f& ~% z1 R& _ B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)( ]5 r j& N3 |3 }8 t5 V& G
If Abs(B1) < Abs(B) Then Y = Y2( j) v& T/ u- e# R0 C
Exit Do
- w/ c O& Q/ o l* Y- H9 V ElseIf Y = Y2 Then+ H, O6 i: `" M2 F
B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)% ]9 e0 b: w h
If Abs(B1) < Abs(B) Then Y = Y1
3 |5 s0 a# q& M4 J9 G" @ Exit Do
) q I8 _& J) ~6 P ElseIf B > 0 Then" [! s7 N) O! ?: d" J
Y1 = Y
6 H7 C5 |, ]" f. h# I Else. U! ]" b) e7 L+ a+ x
Y2 = Y2 [8 |7 m% S) o2 G. A0 T5 |- K: I
End If# P u- i" U; u" ]/ r' e2 x3 y
Loop9 B9 b6 G/ ^6 v9 D" N$ r
R = Y ^ 2 / 40 '小圆半径; P6 `' i D) j
O1(0) = R - 10, L5 G& F5 W1 ^6 Q( x$ N
O1(1) = Y '各点赋值
; s+ X; R* G4 e3 U1 K h' b O2(0) = Sqr(0.5) * (10 + R). f) m& X( y, @ w* j
O2(1) = O2(0)
) Y4 n1 b) H+ F( L o* j O3(0) = O1(1)
3 v7 W4 g8 ~( q7 J+ V2 C& ` O3(1) = O1(0)
/ i; Y5 V* l! \. v& P P1(0) = -10$ l! a2 Q! q, |+ h* i2 N6 A7 m
P1(1) = -10
5 b) S( f# Z/ q! X P2(0) = -10( x: H6 U: G# ]
P2(1) = 202 M3 k% R( h8 D* N! R) Q/ }
P3(0) = 20
- M% R" N L3 G/ | P3(1) = -10/ L6 b. x6 o$ u/ x0 y
With ThisDrawing
: |& M% }6 x' f2 ?" P .ModelSpace.AddLine P1, P2 '画直线, F% X% f, P. g! N" `! L" w, F
.ModelSpace.AddLine P1, P3" _; A- e+ ~" R& A& V* R
.ModelSpace.AddCircle O, 10 '画大圆
: i2 G5 V* | g& E( Z4 J .ModelSpace.AddCircle O1, R '画三个小圆
! {3 k" f, o6 y" ? .ModelSpace.AddCircle O2, R0 H W9 Q5 @$ X; F8 R0 |0 ?
.ModelSpace.AddCircle O3, R0 P- n. }6 D7 V2 R8 b+ Y
End With1 x' z4 Q+ k/ z$ \9 L. 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