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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：
0 c4 x) ]+ F: U " {7 p4 a% d7 i. e
Sub A() '本程序以20圆的圆心为坐标原点
) ~& C. \9 J0 X Dim Y As Double '左上方小圆圆心纵坐标
8 a* {1 T8 V- e6 t Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量
9 O2 W" v! Y! P1 I7 S4 b Dim R As Double '小圆半径3 E; r- i* _2 f( M
Dim O(2) As Double '坐标原点9 B& W0 v9 T7 h, k) U
Dim O1(2) As Double '左上方小圆圆心% u3 l% p, X1 } S3 t" L& { `$ [
Dim O2(2) As Double '右上方小圆圆心4 ]& b' ^% Q% M5 h% |$ W5 J
Dim O3(2) As Double '右下方小圆圆心! N% L% i# N* F. p$ X1 v: I
Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点
& }: T s/ r% T3 E, v) v Y1 = 10 '迭代运算边界条件
: Z; e5 `$ E, _; H5 m Y2 = 20
* {8 F0 k- [; U$ g9 W# ]" | Do '计算合适的小圆圆心纵坐标' B" {7 s: {( Z$ h4 c3 k5 g0 w) k
Y = (Y1 + Y2) / 2
" i3 T S0 ]$ j% p6 l0 k. g B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2); _8 j) z$ Y* m& Q5 S$ `
If B = 0 Then) r* Y, F& |/ y2 D' A3 A
Exit Do2 i, {4 Q& M2 U+ _; R2 o
ElseIf Y = Y1 Then7 i% h! N5 {# J' P4 g
B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)
+ j) L8 @6 p& F- y3 B4 E If Abs(B1) < Abs(B) Then Y = Y2
7 ^$ j+ p4 Q( b5 M0 X4 h Exit Do
) Z& ~! H$ A) R1 c ElseIf Y = Y2 Then
& ?0 {' B6 G- h, ~9 m+ q$ _: _ B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)
( m! s3 ~6 Q5 ~' ?8 j2 T If Abs(B1) < Abs(B) Then Y = Y1" {; a0 q" P; X; ]1 ?( M
Exit Do1 K% R6 l+ B# a/ q
ElseIf B > 0 Then
4 }8 f8 c o$ ^1 a% C Y1 = Y9 ?; q c4 t5 L' h& A2 j M
Else
8 |8 j$ B* e7 K Y2 = Y1 p' U7 s- I5 e, V; G4 u9 I
End If) V, y+ S9 V/ J8 o/ O/ l
Loop# C& t7 c5 Q/ R
R = Y ^ 2 / 40 '小圆半径
9 ]5 s5 M1 l2 n7 ~ O1(0) = R - 10' s) O3 L2 ]: S+ ^' t( N9 _
O1(1) = Y '各点赋值
- g0 k& S% G7 w1 r O2(0) = Sqr(0.5) * (10 + R). S' s( a0 f* H/ ?$ E5 A }
O2(1) = O2(0)
. b* P! [, q, @2 u0 Y O3(0) = O1(1)
+ h) w0 J& S, w7 I7 I; r2 F O3(1) = O1(0). C% ~' P9 @" A' F# v' o6 t8 b
P1(0) = -10
! K" M4 L/ @3 I1 n7 k. M1 O. j P1(1) = -10 s$ ?! u" `1 s6 y y9 Y
P2(0) = -10 E& l7 r9 C2 i B
P2(1) = 20: h+ G" Z( u( U" `6 F6 u
P3(0) = 20
: \. v5 b. J- r. H P3(1) = -10
) h3 U( q+ @; k) ] With ThisDrawing
) S5 G8 U: N! { O .ModelSpace.AddLine P1, P2 '画直线
/ e% T0 J8 c7 |, d8 ~ K( a. l .ModelSpace.AddLine P1, P3
! A7 c B2 w X8 w .ModelSpace.AddCircle O, 10 '画大圆
4 u6 U* h3 Z# ]" {+ F* }' i' ] .ModelSpace.AddCircle O1, R '画三个小圆2 |+ y+ q% I9 x6 t1 k
.ModelSpace.AddCircle O2, R
# `7 o+ {9 }) ?8 j5 \* T) e .ModelSpace.AddCircle O3, R
3 B! y R/ }& N- r0 ]& P+ S End With
2 S& ]+ u" V# a" rEnd 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