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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：
1 S; _& [/ Y8 w7 v5 u7 }7 A/ C
( r q3 ]7 T6 }$ {! M7 pSub A() '本程序以20圆的圆心为坐标原点% B9 ?( L0 K6 i1 E/ {2 l: l
Dim Y As Double '左上方小圆圆心纵坐标6 \3 R+ d/ v8 a, x1 _: B1 z0 }5 ]
Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量
5 @) X9 D9 N% g; t Z- H' f Dim R As Double '小圆半径3 Q2 h! o& W# p% _
Dim O(2) As Double '坐标原点# t/ y1 q: P! ?+ Z5 Y% _) o! D
Dim O1(2) As Double '左上方小圆圆心0 a$ Y: [( _# w u ~. h4 U
Dim O2(2) As Double '右上方小圆圆心
M1 H$ ~6 J- S1 | Dim O3(2) As Double '右下方小圆圆心( v0 N7 j, e3 p0 [9 W4 w5 E
Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点# }) V i' P2 F# m/ N
Y1 = 10 '迭代运算边界条件% Q' d" r% M1 Z4 o
Y2 = 20
% ^+ G; ~2 u5 {- d. ?( A Do '计算合适的小圆圆心纵坐标
& v. h4 G! b. g$ ~& n Y = (Y1 + Y2) / 2# \: n ~; U7 Q: I
B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)+ E; a3 Q# P& l* t8 U
If B = 0 Then% ^9 _& a- ^( [% j" M
Exit Do
# Y& f @; E3 b& f$ K ElseIf Y = Y1 Then" O1 c+ Z/ t! ]8 v0 g
B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)
9 r- g+ o+ m, P( F5 N7 l$ V If Abs(B1) < Abs(B) Then Y = Y2
+ a0 u1 l2 c6 E; `7 L5 i4 P% P Exit Do, c/ g9 h; Q1 n4 i- D* G0 Q
ElseIf Y = Y2 Then
3 o8 X2 ~; n; L! E, ]& c. K2 ?: ] B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)* O$ c+ W2 N* n& V& l* ]3 C6 q
If Abs(B1) < Abs(B) Then Y = Y1
* F" I' c# a# b. z- Q! m Exit Do
/ s4 G0 o+ b$ y% C' p" N3 r ElseIf B > 0 Then
J+ h Q# o: z' O* \& T Y1 = Y
8 k n, `. m- R4 @ k Else0 }' l* x, d# |+ e4 w2 v* X/ c& Z, W0 ]
Y2 = Y9 R2 f9 I$ @5 ?/ ^( h: ~" @/ h d
End If
8 ~1 h" V" m8 a. W. |3 c Loop
& h- |+ R% g. o8 @ R = Y ^ 2 / 40 '小圆半径! X4 a) M3 E* x4 b; K* |
O1(0) = R - 101 W$ g4 T1 o. A
O1(1) = Y '各点赋值+ |9 F& O# U9 h
O2(0) = Sqr(0.5) * (10 + R)
/ ?+ p" t- h: J0 v: v" m9 h O2(1) = O2(0)
* N1 {. P& ]- |' t: ^. [* G O3(0) = O1(1)1 z) b4 f% o. k
O3(1) = O1(0)9 ^$ q ]1 J# {' Q/ f6 g
P1(0) = -10
* a* j' w; k5 e* A; V# a. i+ [ P1(1) = -10
$ t+ V# K" K6 v( m N P2(0) = -10: l& |4 Q/ D6 n' ^. ~
P2(1) = 209 v5 }. H% R w
P3(0) = 20# b4 ~/ z% k3 q
P3(1) = -10
5 ?. Z8 ^% U$ J z With ThisDrawing
7 R' P/ v9 J. L T. { .ModelSpace.AddLine P1, P2 '画直线
& w, g8 t5 h4 b% o* X .ModelSpace.AddLine P1, P3
' U k: D; f3 E; p. e .ModelSpace.AddCircle O, 10 '画大圆
! ?" ~3 g7 J i. P0 n+ y7 j .ModelSpace.AddCircle O1, R '画三个小圆
/ D0 A# X. D9 M3 f .ModelSpace.AddCircle O2, R) c4 u2 V6 m! w0 _& O. f
.ModelSpace.AddCircle O3, R
% [" t0 O! a0 q; N3 C" K End With" s$ j# U( N9 T! T; q; Y3 s# R6 s
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