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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：! v# B7 H- }3 R9 e M$ ]7 z3 _2 g
8 G; `% _* ]. N
Sub A() '本程序以20圆的圆心为坐标原点
" @2 `, }3 e% e; f2 w Dim Y As Double '左上方小圆圆心纵坐标
6 A+ W# B* F N Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量% l1 y3 s( w9 B2 I- {$ v7 I
Dim R As Double '小圆半径
8 M4 j. t: k4 v- y/ V: T1 u Dim O(2) As Double '坐标原点+ w3 r, \7 \: O2 E
Dim O1(2) As Double '左上方小圆圆心1 {2 h' a6 K& P! g8 X
Dim O2(2) As Double '右上方小圆圆心
1 U4 i' [$ Q8 p: i5 q! V& \2 }9 t Dim O3(2) As Double '右下方小圆圆心
, r& ~1 v/ y& L4 J% e Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点- @8 E8 B/ g4 `& d: [6 Q
Y1 = 10 '迭代运算边界条件
! ?; X8 z7 S3 J Y2 = 20 k+ \9 n4 @) a! f) H; @ J m% L
Do '计算合适的小圆圆心纵坐标' V0 r9 r* m' J- z! `% t% h
Y = (Y1 + Y2) / 2
8 J) z7 U5 x J+ F. s6 X7 _$ a B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)
* q, h% ]. V% c3 V [5 C4 @ If B = 0 Then. m* q6 j6 k) X* I! x% q
Exit Do4 ~9 x3 e- A* L1 r7 F6 D
ElseIf Y = Y1 Then
" g; [, p! V* S/ W1 R B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)8 p0 X) F+ u" o8 ^5 x
If Abs(B1) < Abs(B) Then Y = Y2
' G3 y9 p3 F/ ]6 I! j3 b" ^4 H Exit Do8 y. r9 f2 w# F7 R4 f0 P
ElseIf Y = Y2 Then8 T8 I3 ^* s) Z j$ L' A
B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)
2 m& ~7 {- V/ Q3 B! M If Abs(B1) < Abs(B) Then Y = Y1
3 l- W' ?& P2 P% z1 b6 a" W Exit Do
$ S8 L8 R$ F4 j; g( P ElseIf B > 0 Then
: Q' b. q. {* ? Y1 = Y- `6 r8 l& n' V1 j% [6 c
Else
D( J0 _# o* P9 @$ b) Z3 q. w Y2 = Y' a; f' a* x6 }& }7 u
End If7 G( K o1 y, T3 G; F
Loop$ d6 P% [& J8 J' a& r+ t) z+ X8 d v
R = Y ^ 2 / 40 '小圆半径" E' [8 A# z" [0 [7 q* r
O1(0) = R - 108 C2 [6 U" X" S
O1(1) = Y '各点赋值
4 r( K; Z3 M; D" F# g; N4 { O2(0) = Sqr(0.5) * (10 + R)
; [% l: p9 w3 L& z+ r9 h O2(1) = O2(0)3 f- k @ {6 |+ t7 _% J
O3(0) = O1(1)9 `; x4 w1 t& i s$ e7 \$ ]
O3(1) = O1(0)1 m( j1 u% ^2 i. s9 |% _: g: d# N6 z
P1(0) = -10$ a" F+ E+ V/ w& u) J
P1(1) = -10, H0 h) h+ | g7 l1 d1 z
P2(0) = -10
) c3 N; Y U1 l# ? P2(1) = 202 Z4 b/ L, L; r! m% E! X
P3(0) = 20
/ @, B* |) L8 S' E4 G7 y P3(1) = -10 M( ~) H6 {+ e
With ThisDrawing
. ]4 C5 H) {/ B( j .ModelSpace.AddLine P1, P2 '画直线* a5 @& U, ~& R1 z
.ModelSpace.AddLine P1, P3
5 T. I {, ^: V; }7 L+ A& c .ModelSpace.AddCircle O, 10 '画大圆0 }# ^+ j" Y* I- n2 |: o- \% @# c
.ModelSpace.AddCircle O1, R '画三个小圆; G4 R X& |& }
.ModelSpace.AddCircle O2, R# g; K) v' j& V. E% H! s" F0 s
.ModelSpace.AddCircle O3, R
/ R f$ K( P k( N/ v, Z+ l End With
& @8 w% I" r5 M# W3 eEnd 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