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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：
$ }+ r' H2 z/ r P( a% \$ }/ E1 ]+ E
Sub A() '本程序以20圆的圆心为坐标原点
# L( C4 U/ \* r. P7 m Dim Y As Double '左上方小圆圆心纵坐标7 ~) f( s, P. a6 h# _
Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量
4 ?2 `9 G- g: A Dim R As Double '小圆半径
/ @* ` J% N5 E8 d; i5 l+ o Dim O(2) As Double '坐标原点1 u$ w+ ~8 |$ q r" [9 Q! n( d
Dim O1(2) As Double '左上方小圆圆心* q" d" X: t) w8 D& \
Dim O2(2) As Double '右上方小圆圆心% ]8 `+ e9 O' N
Dim O3(2) As Double '右下方小圆圆心2 \# R2 }" n, e8 f0 |0 T
Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点
! q d4 l( W! ?5 U3 a' a: ? Y1 = 10 '迭代运算边界条件
1 a3 {+ n6 W8 a Y2 = 20
! p9 o& X& p- X7 ^! g Do '计算合适的小圆圆心纵坐标
! `: M* X. r- O Y = (Y1 + Y2) / 2% U6 E {8 P7 [+ S. o% Z
B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2) F% d% N! ~ D
If B = 0 Then
% @, D1 R }* d2 @* Z9 h" t Exit Do
: t& r* v C( X, g& p1 [ ElseIf Y = Y1 Then* E3 p2 ], D. [' B
B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2) e1 F; v: A3 m" z# R2 t8 I* ^1 g0 b
If Abs(B1) < Abs(B) Then Y = Y2
) V! \% g# m6 R9 {: d Exit Do
, f7 `5 v4 n+ n' |3 U/ u ElseIf Y = Y2 Then- t W8 k s- r' Q5 m1 @, ]* K6 M
B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2) h1 ]$ r8 r V5 i
If Abs(B1) < Abs(B) Then Y = Y1
- j* X! T3 Y( a U# V: `( n Exit Do
- R d! k. l g( w: ~ ElseIf B > 0 Then; p6 j3 [* m6 w9 ^" l7 L+ Z7 w
Y1 = Y
" g: O. I1 m0 F, Z! H Else
1 @+ v9 O9 Y- y( d! v Y2 = Y8 x4 A" J- T- C! @, y
End If
- ^ b( Y1 F9 [6 W Loop& V1 y6 t+ R( V. n( M2 i# C' E0 K# ]
R = Y ^ 2 / 40 '小圆半径
% F @$ b3 W) C- J( r5 L, K/ h$ D O1(0) = R - 10) @ z* c, L3 M* w* B& S
O1(1) = Y '各点赋值0 d% m `% ]" i9 G y
O2(0) = Sqr(0.5) * (10 + R)$ \, Z. @( U5 p8 n7 l
O2(1) = O2(0)5 J7 I/ c3 @$ G# I* N* P
O3(0) = O1(1)
/ D' \; M }% f: {2 U O3(1) = O1(0)
: D! a2 d o/ h0 ] P1(0) = -104 h+ s, C, `5 N1 }9 o; e; V' F* ^
P1(1) = -10+ ^ L E- D" v2 X7 O3 E* Z
P2(0) = -10
/ v1 @5 }7 {/ {7 `3 q6 z$ L: O5 k P2(1) = 20$ K. B: ~( ]9 K( U- k2 o' n2 F
P3(0) = 204 T# y h6 l2 w: C) S, w9 j
P3(1) = -10
% O% Q; y5 ^: F$ F With ThisDrawing* K3 I- r8 N! e# n+ b
.ModelSpace.AddLine P1, P2 '画直线
- A* o& _- w: X4 r; z .ModelSpace.AddLine P1, P34 g" f& ^3 V% Z3 i+ F# A+ V9 K
.ModelSpace.AddCircle O, 10 '画大圆
0 a& {; D& I8 T1 z1 M, \ k .ModelSpace.AddCircle O1, R '画三个小圆
# ?' M3 f' s7 }9 [7 n/ S .ModelSpace.AddCircle O2, R% s* x* |$ n" A5 f" c
.ModelSpace.AddCircle O3, R# A4 t/ L* r1 M" x7 c X' N$ y
End With
: ?) o: N# H" E( F' b2 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