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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：
; j; O6 g+ M6 N( E5 | W, O% X: ]/ }& n( C( p1 u
Sub A() '本程序以20圆的圆心为坐标原点
6 I' y, o8 P& G3 P Dim Y As Double '左上方小圆圆心纵坐标
, V1 k$ X' K/ c, S* O* q% B$ y7 | Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量
, c) V3 m6 i+ x4 o6 Y Dim R As Double '小圆半径
1 D; }. l) o! W# ^1 p8 f8 C Dim O(2) As Double '坐标原点
0 L" z* y3 v0 ~+ F7 f+ O: ~8 v3 K- m3 ~5 F Dim O1(2) As Double '左上方小圆圆心
4 [; @, o: d# E9 B# |. |# f8 P: A( z Dim O2(2) As Double '右上方小圆圆心' | b6 x2 \# ^9 D
Dim O3(2) As Double '右下方小圆圆心
$ Y: u1 Z& |% e# {6 r6 x Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点- P& D% J5 D- j c9 o9 M
Y1 = 10 '迭代运算边界条件
, E1 G( S4 r: X9 Q6 I* P Y2 = 20$ X$ w! V5 b. t. z, e
Do '计算合适的小圆圆心纵坐标' p1 m8 f7 Y" D3 \3 L! }7 b
Y = (Y1 + Y2) / 2
7 i. g" j% u; C! o; } B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)* u9 q: J& W+ x, i. v" w9 a* {2 _
If B = 0 Then! R# i1 R' r1 I9 g
Exit Do
, }. r9 L/ C' @" } C ElseIf Y = Y1 Then
/ P$ Q! g3 }2 ~( g7 r: ] B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)+ a/ J" Y5 f7 F7 b6 e
If Abs(B1) < Abs(B) Then Y = Y2
" t4 B$ R) g( b3 n9 Y4 Z Exit Do
+ n8 E6 [( o6 `" z& H2 L% V) K ElseIf Y = Y2 Then' C6 _! e7 A4 k* u, [
B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)1 J0 R8 s7 c! Y& T6 h" {* Y
If Abs(B1) < Abs(B) Then Y = Y1& l* G& N5 o. K$ e5 u0 b: V
Exit Do( G: W$ W1 A8 I5 Z* l1 k) F; j2 ~
ElseIf B > 0 Then
% F: q5 `, d1 ^4 ? Y1 = Y) M+ t4 ?5 `) ?7 X% X
Else8 W4 @: F! U( `8 S, N
Y2 = Y
+ g% e2 A+ `* v- u End If
$ z- [4 [! Y! E' F Loop
. W0 b( Z1 y0 y8 H7 l3 L+ c; ] R = Y ^ 2 / 40 '小圆半径( ]( M" i) a# S; ?# z( [2 G. [
O1(0) = R - 10
2 |% p# \. i& b% }/ U1 }$ j O1(1) = Y '各点赋值+ s) {$ [/ G: \0 V; ~4 c
O2(0) = Sqr(0.5) * (10 + R)
$ _, ]2 Z! U! A6 d: f: e O2(1) = O2(0)+ m0 P0 e1 \7 j
O3(0) = O1(1)5 P& }, o' i( r! T9 L' ]
O3(1) = O1(0)
6 T; I4 P6 D s9 \- T3 x2 Z, U1 g- g P1(0) = -10
% R& i* N4 E# L P1(1) = -10" u* V9 ~' B* r4 F9 }
P2(0) = -10. O3 v9 S( p) A' E3 x
P2(1) = 20
3 r3 `- b2 T, _ V: |; b P3(0) = 20+ {4 k5 R# ^1 ~/ A
P3(1) = -10 J0 a- w* S2 b4 x+ f2 ]6 O- P
With ThisDrawing
8 E( ~. g6 a( i/ g* j0 H .ModelSpace.AddLine P1, P2 '画直线
/ v! j8 L6 f) |6 M# } .ModelSpace.AddLine P1, P3& m' [& D9 W+ {) I
.ModelSpace.AddCircle O, 10 '画大圆
; N7 t8 G4 p- x: Y6 @ .ModelSpace.AddCircle O1, R '画三个小圆 g Z/ g/ p0 A/ k+ ~
.ModelSpace.AddCircle O2, R5 H0 _5 J6 \5 ^- P8 |( c- V
.ModelSpace.AddCircle O3, R
) A# J9 N+ u, N End With# _) Z) |/ U& ]; N3 h. C3 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