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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：
$ B# m; Z6 k1 U! Y/ i+ O
; F) N, b, y( |: Q9 K, |' ESub A() '本程序以20圆的圆心为坐标原点
% E" q( _" |2 @( t. X Dim Y As Double '左上方小圆圆心纵坐标
3 j+ k2 b7 K+ ]4 ^$ C5 j' u Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量% l7 V3 j; M0 P+ D. _
Dim R As Double '小圆半径2 t% h4 X0 @4 D2 V+ G( G
Dim O(2) As Double '坐标原点% [. k( C3 Y. S# e4 l+ m
Dim O1(2) As Double '左上方小圆圆心
$ X7 ?8 N) C; P w Dim O2(2) As Double '右上方小圆圆心; ~5 i8 M4 c v1 c" E( i
Dim O3(2) As Double '右下方小圆圆心) v6 B( y3 ?, M+ M/ R1 W2 T
Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点! o1 i; V) T5 ^$ j" p
Y1 = 10 '迭代运算边界条件
R' \! y2 |5 o Y2 = 20 U. v' v- `" Y' T
Do '计算合适的小圆圆心纵坐标
# k% e6 x# ^, K. T* F8 T6 M Y = (Y1 + Y2) / 2
# d# Y6 l+ x+ F: ^9 e) q) Y" | B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)
: O$ [$ n, j: x. Z If B = 0 Then
% I9 L3 ], I8 t/ K Q Exit Do
' ]/ _! W5 D' ]* r; @3 A ElseIf Y = Y1 Then! o- k# Y }5 K$ ^& Y8 x8 \2 Z
B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)# @' M6 y$ o( B- p7 z+ C6 }
If Abs(B1) < Abs(B) Then Y = Y2& b/ u. k$ j+ J$ t
Exit Do
; y# u) f: M9 U3 H ElseIf Y = Y2 Then; k m/ O ]4 D# b- L4 X, V/ m
B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)+ y- ~3 R. [( ^2 E7 X) X' m
If Abs(B1) < Abs(B) Then Y = Y1
# l) @0 R5 z, q; K Exit Do2 B5 s* t. v/ H' P8 p
ElseIf B > 0 Then4 ]( o' B( V# p4 r4 j. e& v4 ?, u
Y1 = Y0 }! M% Q( G& ^% k) A/ l6 b
Else6 K2 ]! y: G, T" O" w
Y2 = Y
4 e2 ]8 w$ ^8 A5 e End If
/ F: k' \; B. A' j# B, c Loop; B& A/ S9 X" H
R = Y ^ 2 / 40 '小圆半径4 v; ~; C3 ]( y9 L3 j0 I" b( v
O1(0) = R - 10* o- w1 [1 }+ y8 m7 J* T+ ~
O1(1) = Y '各点赋值1 p" G" \* b% Q" e( Z0 Z! I+ ]
O2(0) = Sqr(0.5) * (10 + R)+ e, F0 h$ { u E2 h9 _* b7 M
O2(1) = O2(0)
: |8 D, [+ G/ a& P6 e0 U O3(0) = O1(1)
, T& s G1 @4 p* F% y9 t; T O3(1) = O1(0)' O9 ^* J' W8 c3 q/ j
P1(0) = -10: S- z9 x/ \" M. @8 J
P1(1) = -10# ^) o" K/ }4 m, D3 Y# O+ l/ h- J7 h
P2(0) = -105 s7 X+ A8 ^7 f7 z3 q8 S+ A+ N
P2(1) = 200 S+ J: I8 h4 b* ?- S; A
P3(0) = 20
* o5 b) ?7 w9 @' N7 z6 b/ k% k P3(1) = -10
: F; v% ?' _) ]0 ` With ThisDrawing$ J( g# j! ?2 v3 r. R$ j, P
.ModelSpace.AddLine P1, P2 '画直线- p9 I5 W, l# e ~9 `
.ModelSpace.AddLine P1, P3* W4 i- |- o, A- [, x. z
.ModelSpace.AddCircle O, 10 '画大圆
6 `. A5 ^; d/ g; h; o) Z .ModelSpace.AddCircle O1, R '画三个小圆
- S6 W4 i8 P; D1 x9 i4 ^+ w .ModelSpace.AddCircle O2, R
) y& I$ W: Q& t .ModelSpace.AddCircle O3, R
. ] `/ ]1 ]! F6 l6 C& b" g5 c( o- p End With
2 |/ ?0 v# [# [2 jEnd 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