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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：( O( V; ^ z( S1 p( a9 p
; m4 o9 s6 ^' X. v0 B
Sub A() '本程序以20圆的圆心为坐标原点
`: y9 b; ]) u" X# c3 l# s8 V* V Dim Y As Double '左上方小圆圆心纵坐标
3 @+ R( Z3 Y- m7 D6 Q* U Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量3 N5 T/ v; C) A g! p
Dim R As Double '小圆半径: k' h* `/ L- U$ @5 }
Dim O(2) As Double '坐标原点: C* w- @) a, a' v
Dim O1(2) As Double '左上方小圆圆心
`, H( A- x. J6 R% d, a! l Dim O2(2) As Double '右上方小圆圆心0 j0 u5 M2 `2 S1 c5 u
Dim O3(2) As Double '右下方小圆圆心+ N" }3 v3 `2 r$ p3 ]
Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点
0 L0 U9 V* N2 P5 ], l Y1 = 10 '迭代运算边界条件8 P& @0 C' g5 T- c( V6 J/ C
Y2 = 20
3 E3 A/ o' Q7 @' \0 N) G Do '计算合适的小圆圆心纵坐标8 E7 Q& K6 i0 X9 f* E# h
Y = (Y1 + Y2) / 2* o( y8 Y C% |5 [3 D+ R2 b1 T
B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2), @% a; ^+ \" o% p9 ]
If B = 0 Then6 P6 _" D) l9 s# J* L! N
Exit Do( E/ _& F; J- W! [; v
ElseIf Y = Y1 Then
5 m( a0 ~4 t: [( Z B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)
* v' ]2 Y# m. Y If Abs(B1) < Abs(B) Then Y = Y2
1 ^& r' V5 q' n( Y. s5 b Exit Do
; S4 `* W7 G% g+ S ElseIf Y = Y2 Then
- _6 J' q2 E# c( q8 F" k. [ B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)
9 `) @+ \" r: Z7 d9 g" ?) t+ ^ If Abs(B1) < Abs(B) Then Y = Y1. f+ m, n: Q- F" H
Exit Do
3 d& J! ~$ X# U7 S( D ElseIf B > 0 Then
& a0 Y2 K A- U& M9 z7 d& v Y1 = Y. v) d# ~/ i& q A+ E
Else# S3 Y% H+ a `' K% b1 j7 H+ D0 M1 H
Y2 = Y
6 I' g5 W1 _. _ End If
\% Z J" g8 y( `8 a/ ~; A- K+ ? Loop {. b4 l& A5 f3 u9 |1 |/ R
R = Y ^ 2 / 40 '小圆半径
2 T0 \( v6 i) U1 @% a O1(0) = R - 10
! c B3 e( h" @1 i( R w$ f O1(1) = Y '各点赋值0 u! ?4 c" L" `9 _4 h
O2(0) = Sqr(0.5) * (10 + R)
0 u2 i5 V/ U. s0 K O2(1) = O2(0)
' K) _ S% K* U. c O3(0) = O1(1)8 F6 e( J' d7 S- o1 E8 I | |. d$ y! O
O3(1) = O1(0)) I* s, S, i5 D& b
P1(0) = -10
& @7 y" |, _. i! ^* [$ R P1(1) = -10( q% H- ~! W9 b+ M: a
P2(0) = -10
" c" u) U [# D4 L P2(1) = 202 N# I3 b: b2 I, {
P3(0) = 20
9 F c( T/ C5 e1 F1 U0 l P3(1) = -10; }7 t1 L e& c; O' O9 x
With ThisDrawing
" g' U1 w( p4 z4 _* U2 y' ]( e+ W. c .ModelSpace.AddLine P1, P2 '画直线9 C. v. U: i; P* o
.ModelSpace.AddLine P1, P3
5 y v8 `/ i9 y* U, U8 j( Z. R .ModelSpace.AddCircle O, 10 '画大圆
6 ]/ ^0 C. _5 j+ b9 S2 t .ModelSpace.AddCircle O1, R '画三个小圆
) D9 Z: f( Y- r( r( V1 C { .ModelSpace.AddCircle O2, R
, P4 [7 o% h) [8 |; f .ModelSpace.AddCircle O3, R
1 s' X7 B+ \- }& i! n/ \ End With/ W7 e; ]8 v5 h. F$ B3 Y
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