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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：% C" n: r9 W* L
6 V+ f4 i- D, c* O9 A
Sub A() '本程序以20圆的圆心为坐标原点( ~3 j' f! O% I
Dim Y As Double '左上方小圆圆心纵坐标
& K( K. C ~6 q Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量
5 T6 J" z1 u0 n; V" n" y [ Dim R As Double '小圆半径
. e. _9 l) r( U; w) }; ` Dim O(2) As Double '坐标原点
* N! R/ {# j- U9 g8 B) ^ Dim O1(2) As Double '左上方小圆圆心7 D* g) E' [2 _& t- Z
Dim O2(2) As Double '右上方小圆圆心2 I! D- x2 b; x ]3 I+ V) i' a
Dim O3(2) As Double '右下方小圆圆心
- K3 m% ]0 L7 s; V( o Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点9 E9 @' d/ X8 |& a& E2 n
Y1 = 10 '迭代运算边界条件3 g. x% ?, O9 @( f6 [
Y2 = 20
" p8 c5 m- C' i1 q1 X( _ Do '计算合适的小圆圆心纵坐标
) g4 f9 l3 I n* d% G Y = (Y1 + Y2) / 27 u7 z! V# N+ F4 i; Q) y& k
B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)
5 ]- S5 m' A" B" r& w1 U: E2 W If B = 0 Then b/ g* q% O+ J2 l; d; ^! d! S
Exit Do; y& w% x- V4 i- U; L* Z
ElseIf Y = Y1 Then$ F9 ]4 R* a# [3 X5 c
B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)# H. S1 [# a [+ V$ U! A3 S
If Abs(B1) < Abs(B) Then Y = Y2
( _5 _' C6 \2 j9 K( j6 i+ Z Exit Do) y* R' A& z5 X$ X
ElseIf Y = Y2 Then
! b2 A* e p6 c; A( o( X B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)
2 P2 J- ]" j/ ?0 o If Abs(B1) < Abs(B) Then Y = Y1. a: @7 R7 F& W; ]* B
Exit Do
; ~; J" G) L$ u: C: p7 H5 a- {( M ElseIf B > 0 Then& p% u h- Y2 ^. n$ y
Y1 = Y
; _2 q, T; b7 r6 p) b; u" \ Else
- v* C `; U8 a' J ^4 R% u Y2 = Y$ t* T+ b3 r- w1 P) Z
End If
" e% y4 B- Y5 b- \0 Z Loop- e. J. t" W! S$ h2 q N
R = Y ^ 2 / 40 '小圆半径 p3 r. {3 i% P2 o% Z
O1(0) = R - 10
; ^: V, y! _- ^1 \- `& m; w4 f O1(1) = Y '各点赋值% w9 J( [& w4 J# G C' g
O2(0) = Sqr(0.5) * (10 + R)5 c" ?8 i/ q$ s& J" H$ Z
O2(1) = O2(0)* N# k4 j. A3 A$ u9 t
O3(0) = O1(1)1 M9 y5 d( C% x5 G; J
O3(1) = O1(0)
5 P( M7 _, i' K! n/ Z0 P P1(0) = -108 `4 G1 M' y9 b
P1(1) = -10
; l- S) A! ~0 L4 ~% ] P2(0) = -10, w0 k8 L" p& w# N0 t3 N
P2(1) = 20+ l0 B4 H, ~% F! v
P3(0) = 20
' D) C9 Y( J7 \& R5 K9 j P3(1) = -10
7 j$ s- E' _1 [8 O2 ]$ Q0 l With ThisDrawing) G" [, ]9 t% R
.ModelSpace.AddLine P1, P2 '画直线* M4 @' r9 Z9 P8 r
.ModelSpace.AddLine P1, P3- a- y O5 g3 ]
.ModelSpace.AddCircle O, 10 '画大圆) F4 j/ Y( U. A" Y4 c, A
.ModelSpace.AddCircle O1, R '画三个小圆
( ~7 c' h( Y: U$ V8 R .ModelSpace.AddCircle O2, R
( F+ \& |7 ]; Y. i6 F3 t0 j. q0 l9 _( p .ModelSpace.AddCircle O3, R4 k: t( m0 H4 s* l1 I& |
End With
6 l- S& ^# f1 ?; v7 o3 DEnd 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