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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：
/ t; x, {( C0 Z t; ?
; Y @2 s* C8 N% H' QSub A() '本程序以20圆的圆心为坐标原点
V. P8 v0 Y* C' e' } Dim Y As Double '左上方小圆圆心纵坐标, t* g$ h9 @6 D; B4 U! h* V
Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量$ W( v% y5 a4 S# U2 H$ N; g
Dim R As Double '小圆半径$ A# p8 i! ~& m3 K7 ]* @, f
Dim O(2) As Double '坐标原点
# {# R- ~2 k$ w" t) n Dim O1(2) As Double '左上方小圆圆心+ t- P( Z% X, M/ L0 K1 p
Dim O2(2) As Double '右上方小圆圆心9 e! d5 X/ M ?) m9 ]+ ~: l4 B
Dim O3(2) As Double '右下方小圆圆心
; Q& B7 ?" q4 H: t( T8 W Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点3 r* E: z/ x; h% d0 S
Y1 = 10 '迭代运算边界条件. s7 ]# p1 {$ y9 j& w
Y2 = 20
- V, m$ }9 J4 Z& k: s* @) @) D2 C Do '计算合适的小圆圆心纵坐标
5 r$ @( d2 \ m# ^% i- C Y = (Y1 + Y2) / 2
b/ f- I7 `) Y3 O( U B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)
P1 i; n4 e4 G$ }! L! q If B = 0 Then$ i1 G& r* h$ Q0 E
Exit Do+ q" G8 q7 U' v% o8 R) S
ElseIf Y = Y1 Then4 Y6 X' [6 B' a6 s# E) B+ a8 g
B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)
' W, W' M7 F8 r5 H0 H, C If Abs(B1) < Abs(B) Then Y = Y2
( S% _& e# h( S: G( L Exit Do8 }# q2 x7 T+ y0 v: T- Z; e
ElseIf Y = Y2 Then
2 }" \; b9 x6 {5 N B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)% I, y9 y4 B. E& v, S" P( A0 u! h$ D+ Y" Q
If Abs(B1) < Abs(B) Then Y = Y1: \5 z" u+ v( v5 j/ R/ Y* ], U0 u' x
Exit Do
2 H7 K% Z. Q, u! ~ ElseIf B > 0 Then
R- R$ I* X% n Y1 = Y
/ d5 s8 I9 E, t- A2 _, n E( D+ Y5 g* o Else% K5 Q) Q' T( q7 m# ?
Y2 = Y5 L5 w, ?3 V: q& [
End If) w( H6 k( O A; n
Loop
/ f1 ]: l$ ^, [) O R = Y ^ 2 / 40 '小圆半径8 v8 @+ z" f. p, Z. v% i/ d* }
O1(0) = R - 10& H/ q8 O) g' _. X/ i$ v8 g
O1(1) = Y '各点赋值
, r3 S. r, g& N; F, O ] O2(0) = Sqr(0.5) * (10 + R)
Y: \/ V7 K0 G1 x% `" I O2(1) = O2(0)1 D- }; g( e- w% ~1 B
O3(0) = O1(1)
4 a; l0 j# e; G; h+ E N9 c O3(1) = O1(0)
1 i, t% N1 P8 e8 Y P1(0) = -10
$ O7 i ?4 ?* I' T) v' v, U9 \ P1(1) = -10 \* ]( ]( W! g) _# y) d3 Z' Z0 B
P2(0) = -10
, F% U1 R, n6 U4 R& M! Q7 J P2(1) = 203 x, V! M4 ?, ^: _7 b, `+ {, s
P3(0) = 20
* ~+ Z) [5 B2 f. c- a$ r4 C P3(1) = -10
2 d9 {; g' T- c7 w- b: K With ThisDrawing- l0 S/ j, V8 |
.ModelSpace.AddLine P1, P2 '画直线
6 \5 |: H. |- r( J0 ~9 m* T' G, h .ModelSpace.AddLine P1, P3
; l+ N2 {6 [! V& {9 k% v" I9 s/ _ .ModelSpace.AddCircle O, 10 '画大圆
9 Y8 M- p# T& |% `: c/ X3 d .ModelSpace.AddCircle O1, R '画三个小圆
# o6 X8 Z. R y6 g: k5 l8 {% k% \ .ModelSpace.AddCircle O2, R. g' K& N3 J! f# `
.ModelSpace.AddCircle O3, R* f9 {& X) ~; |6 x
End With
0 B. o y4 D5 y4 |' Z2 a+ Z7 V4 ~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