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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：
2 X8 H# s5 _ V% H) n% R 7 M) V) Q: a) {5 q: W0 G" M# P
Sub A() '本程序以20圆的圆心为坐标原点
& e J9 G* n0 y0 B Dim Y As Double '左上方小圆圆心纵坐标; X! ?' p- S, z3 K: e; t; u
Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量5 j J. f8 D8 M+ M- [" P
Dim R As Double '小圆半径$ \9 `$ F2 D( G4 R
Dim O(2) As Double '坐标原点
/ p9 [: Z o% q: W2 l3 m* I( ^ Dim O1(2) As Double '左上方小圆圆心& ]% v5 z: r4 M' t. w5 F
Dim O2(2) As Double '右上方小圆圆心& m6 a6 H/ d2 X- P
Dim O3(2) As Double '右下方小圆圆心
: B' T7 B- s" {6 G% c Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点$ e$ g: Y6 G7 _/ {5 t' X
Y1 = 10 '迭代运算边界条件
, [6 k' W$ O% D7 J* R Y2 = 201 a, h x* l! X6 A- W1 m
Do '计算合适的小圆圆心纵坐标& j( P6 R" ?0 S- z7 e
Y = (Y1 + Y2) / 2
4 O4 t# g2 ~: D) ?. ?. | B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)7 g! v( W2 o- `- D: j
If B = 0 Then
. |, R) n3 @: n: j! Q& { Exit Do
5 e# Y# |3 [, J/ C( M ElseIf Y = Y1 Then" c7 k" D) G6 T* P, k4 w% f% T
B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)3 z3 t1 k t3 G6 u) W
If Abs(B1) < Abs(B) Then Y = Y2
& ?5 r+ e" Q9 O Exit Do
* q+ D! s. V' L, r ElseIf Y = Y2 Then9 M6 Q7 i9 a+ N3 Q' `
B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)0 f( P* V0 [$ |* e/ ~! E! \
If Abs(B1) < Abs(B) Then Y = Y1) C# c/ o" U( \; s# z
Exit Do
" I9 {7 ~7 Z# _' ~6 c7 l% a: X- y ElseIf B > 0 Then8 b" |6 f# t0 ^0 A! w
Y1 = Y# B/ |+ [" _1 X" G. c0 E
Else
/ t, \) o4 K& Y, a* i Y2 = Y
( K' a) Q+ E. { End If
$ F9 K- N+ K9 a9 D2 P- J: Z+ R Loop3 i8 K7 \7 x( F. v8 P* x& n# h
R = Y ^ 2 / 40 '小圆半径
6 j, n( N8 E' Q( N L- X O1(0) = R - 10- E: J+ _( D9 u* U( q2 t1 \( z: o ~
O1(1) = Y '各点赋值
. m5 w( `, F J8 K O2(0) = Sqr(0.5) * (10 + R)6 ~7 J$ O, U+ M/ d
O2(1) = O2(0)6 j# ^( V% B; \/ J
O3(0) = O1(1)
. B$ C4 t. N; r( b1 N O3(1) = O1(0)' P& Q0 v7 F0 S4 ]6 R9 B9 b4 O
P1(0) = -101 u3 H- \) [- k
P1(1) = -10
0 A. j/ J M" }" [ P2(0) = -10
# j& b7 V$ G2 o5 z P2(1) = 20: ]& k) T) q) z5 M- n, C; ^; D
P3(0) = 20
5 c9 D: K$ b, B! P, r5 m7 y: p# S P3(1) = -109 s3 z% h; x4 O' T8 c3 u8 y
With ThisDrawing
$ u* p+ n& Q; Z2 y .ModelSpace.AddLine P1, P2 '画直线 k$ l, Q' K' O) I. o9 o1 u: F, Y
.ModelSpace.AddLine P1, P3& p, ~( v' L! u7 D
.ModelSpace.AddCircle O, 10 '画大圆' p: r D' B* _4 h& ~& Y: |) j A
.ModelSpace.AddCircle O1, R '画三个小圆
* {3 {+ Y2 L7 X) q6 m U4 j .ModelSpace.AddCircle O2, R
2 s+ G3 I) ]! b0 m6 D$ [+ v .ModelSpace.AddCircle O3, R
& g6 U A5 v5 z+ u- \2 R- u5 p End With2 K+ [' r% @0 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