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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：, z% G' A% X* m. D! O
1 c2 H5 u& M( \# p) \
Sub A() '本程序以20圆的圆心为坐标原点
5 {0 S* l' v9 ^; t' \0 @ Dim Y As Double '左上方小圆圆心纵坐标
" p, ]0 R4 \- p Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量
7 N& b( v6 n* a Dim R As Double '小圆半径5 Y; G* z& Y% |* a% u% P0 I( k+ l
Dim O(2) As Double '坐标原点1 B' f9 i% A# G b; ~5 u
Dim O1(2) As Double '左上方小圆圆心
" }/ |; X. L7 Z0 x Dim O2(2) As Double '右上方小圆圆心
. P6 c6 Q3 P. @6 l, K: G2 n- F Dim O3(2) As Double '右下方小圆圆心; ]& ~' z* z" y% c: B
Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点: ]% h. z, B5 X B! n
Y1 = 10 '迭代运算边界条件/ V% G' ^8 s* E
Y2 = 20
4 c) v6 O) ]6 w8 j: x Do '计算合适的小圆圆心纵坐标8 n F0 t1 y( R% A7 E8 C* P6 d8 l% Q
Y = (Y1 + Y2) / 2: ^2 j0 D0 _' g7 D
B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)" f6 U5 n2 w: J" J
If B = 0 Then
; i9 u ~, D: Y( Q$ [ Exit Do/ K* f+ v" k- Q: D
ElseIf Y = Y1 Then
/ y! |8 I1 O# E( i4 _5 N4 Q+ v* w; H B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)9 L+ L/ J5 [5 g
If Abs(B1) < Abs(B) Then Y = Y2# o2 n" Q+ r4 |: J( t
Exit Do$ q: i0 n0 W% O8 p% Z/ ^* d
ElseIf Y = Y2 Then
+ s; l' M% C7 S+ e B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)% q" A2 h/ c9 J/ F V$ c
If Abs(B1) < Abs(B) Then Y = Y15 {# ~' j$ C$ x$ T7 K3 |1 f
Exit Do
& S: l7 M2 d, ~1 v# G4 [ ElseIf B > 0 Then
3 v% l* ~$ k3 S Y1 = Y9 g9 E& s) V8 O4 j; g
Else
" x6 I" G& e) A& a. [6 p0 l Y2 = Y# e3 \ H7 V- c1 N: L/ W) R0 A
End If
: M' e! q7 S) F% Q. ? ] Loop
2 s5 i) u( p# c* x, ]8 M; }* O R = Y ^ 2 / 40 '小圆半径
; i( ], v0 V, {: C0 J O1(0) = R - 104 [3 {9 y; j" z1 R! }
O1(1) = Y '各点赋值
1 Z& [- a* k$ W s/ N3 L O2(0) = Sqr(0.5) * (10 + R)
4 T% A* U5 h0 b. K, l- z O2(1) = O2(0)' e3 v2 F5 i i9 J+ o3 Y4 _
O3(0) = O1(1): \! C% w. ]7 Y2 l& ]6 k0 F
O3(1) = O1(0)
D% o9 V" W# { K$ s7 ], C! {5 h P1(0) = -10
, S! Q3 t2 f, N" N# f P1(1) = -10
/ j- _% F: N4 s8 k l P2(0) = -10+ A- M& d) [, ~
P2(1) = 20* a8 e" }* ?: I5 p
P3(0) = 203 b: H9 X2 F3 }
P3(1) = -10/ Z3 Y2 p1 S6 e; e
With ThisDrawing
$ D2 ^. Q6 q0 B$ U8 [5 H4 K% \* v/ @ .ModelSpace.AddLine P1, P2 '画直线: E- f4 j- c) _! d8 H6 A
.ModelSpace.AddLine P1, P3
: y/ E* v0 r [( x .ModelSpace.AddCircle O, 10 '画大圆! S- B3 H6 \; V$ M" V/ C
.ModelSpace.AddCircle O1, R '画三个小圆
" R- y, R; c& C9 H .ModelSpace.AddCircle O2, R
/ w4 ~& W r, Q- m/ S$ }1 A .ModelSpace.AddCircle O3, R; U9 @2 Q7 U) D/ T: d
End With$ k( N: i2 r& x
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