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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* n2 f8 [7 ^' r! Q 0 D( C; m$ b. t
Sub A() '本程序以20圆的圆心为坐标原点
9 v% d8 y: S! ^$ T I Dim Y As Double '左上方小圆圆心纵坐标
; L% n! }' p' x/ d' V: w Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量
" y% `5 Y. U7 W( ` Dim R As Double '小圆半径
, m; K6 m1 d8 r: X& V o! \' E Dim O(2) As Double '坐标原点$ R( ]* z: e* A+ b( C( A5 e6 I6 c
Dim O1(2) As Double '左上方小圆圆心2 V" U4 \( f4 f; v
Dim O2(2) As Double '右上方小圆圆心4 D. w( J' B8 e2 K! m! R0 l9 [
Dim O3(2) As Double '右下方小圆圆心" z' }, H ]3 e: f/ @5 p
Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点$ X d0 n, n! g$ S* K
Y1 = 10 '迭代运算边界条件0 G& e0 I W+ z/ m W7 e
Y2 = 20
6 E# F2 k8 Q# s# V$ Q5 a( u6 |; e Do '计算合适的小圆圆心纵坐标
: N& A7 K8 F6 O5 @/ v3 F& Y* N- j6 l" J4 v Y = (Y1 + Y2) / 2
5 z, C# k, s/ b+ s- J2 {4 o6 ` B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)
" q6 ~3 H7 |( l4 d8 ]$ s, J If B = 0 Then8 N6 }: M+ t; ~. x1 L, Z6 l
Exit Do
( C$ ^! I) |% u- k7 z# n ElseIf Y = Y1 Then; V" F* x/ G9 K% K" X: N7 L
B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)
0 V% T& C7 f1 y& T If Abs(B1) < Abs(B) Then Y = Y2
h- u( t' n+ ^* K3 c: y Exit Do
; d! [. N5 a2 [5 b1 A ElseIf Y = Y2 Then% V* w$ b" E) E
B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)
5 _# w/ i' o/ `* p: } If Abs(B1) < Abs(B) Then Y = Y1$ ?, B. K6 L) s5 ~
Exit Do& y# d F' B7 s; U
ElseIf B > 0 Then
% v8 x2 [0 X/ ]7 p6 d' d7 M Y1 = Y
4 ]9 t! w, K5 |, W9 E0 {5 Q) E Else
! \. F- j- A' c6 b& J# u% [ Y2 = Y3 O- d( R; R0 N( Q. I
End If5 }9 x- U( s' T* j4 F5 _. E
Loop. m3 c& _/ j1 H) ?
R = Y ^ 2 / 40 '小圆半径
* |& e- C3 q* S5 R( n O1(0) = R - 107 V2 m( z1 Y' G6 g4 K
O1(1) = Y '各点赋值
% b# B% X& O$ L4 k8 Y O2(0) = Sqr(0.5) * (10 + R)5 e4 X; T4 V t: v7 s
O2(1) = O2(0)
. L0 p9 d1 {$ W2 e- G O3(0) = O1(1)
7 o! {2 K4 d% W- p" l' e O3(1) = O1(0), l/ N$ F% y0 b6 _4 D
P1(0) = -10
$ w' J; `! D4 m+ _ P1(1) = -10
6 { O8 T4 u3 A4 O P2(0) = -10
: g' ~2 A" N7 W( n P2(1) = 20! t' C& s- e2 _. Z
P3(0) = 20
% {; R: l# {3 ~: e P3(1) = -102 P" a) m( B5 J
With ThisDrawing3 F: \* P+ E, D5 ~9 ]1 G/ {0 G
.ModelSpace.AddLine P1, P2 '画直线
/ G5 S- N# v9 A+ o; L' P$ x .ModelSpace.AddLine P1, P3) h/ m/ g/ ]: w; S2 E7 b# ~
.ModelSpace.AddCircle O, 10 '画大圆3 m7 T% c5 b) o8 p3 @* E' K
.ModelSpace.AddCircle O1, R '画三个小圆
1 l" Y- d4 @/ d. a .ModelSpace.AddCircle O2, R
& Y& \; n! `% P+ v. J .ModelSpace.AddCircle O3, R! W0 X, u* c# C% r# b: I
End With, o! M& l+ c7 N: ^' s8 w7 j3 C
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