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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：
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Sub A() '本程序以20圆的圆心为坐标原点
% C5 n2 q1 t5 { |; K( p4 o Dim Y As Double '左上方小圆圆心纵坐标
. w) r2 @% x; r. l% Q# P! O Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量
) y8 t4 I9 Q" I1 d' r Dim R As Double '小圆半径
: }8 ^, J/ l( }; ]9 I Dim O(2) As Double '坐标原点3 `/ m9 ~1 o; O7 S
Dim O1(2) As Double '左上方小圆圆心
0 V1 R) O& h9 T: K$ Q! E p" C3 b Dim O2(2) As Double '右上方小圆圆心
" a) @( @0 i. H* y* H4 O' ? Dim O3(2) As Double '右下方小圆圆心+ {1 W/ Q6 d. Y0 F
Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点
1 {5 d! a/ n6 d7 F) z! a Y1 = 10 '迭代运算边界条件
3 {- n" V$ B. ~ d" j) Y6 K$ [ Y2 = 20
- ]; \( B: j6 r- J5 g Do '计算合适的小圆圆心纵坐标, u3 X4 o c8 l" r, ]
Y = (Y1 + Y2) / 2
2 w d( }2 Z w B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)
, Y8 W n: S; r0 d/ F' v+ K" @ If B = 0 Then
0 n) |" g; A9 I0 W) o2 Y Exit Do' H4 H9 e9 r' v6 J; Y' E
ElseIf Y = Y1 Then8 X1 n, a2 b0 Z' h- j# p
B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)) I5 d" X& B, R, j0 f2 C
If Abs(B1) < Abs(B) Then Y = Y2 _; p9 ~8 o. F, M3 g4 |7 `
Exit Do
! `7 f' W1 x' }9 f ElseIf Y = Y2 Then
3 K7 ]2 a ^# {" G3 ] E B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)
+ \" w) C# p% @2 M4 A* t If Abs(B1) < Abs(B) Then Y = Y1
5 |* C1 E" D) {# { Exit Do
# @+ W" b# j% T; i3 w$ b ElseIf B > 0 Then1 F6 ?9 V; \) F# @) @% A
Y1 = Y
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Y2 = Y
* V5 E! D7 \1 `# u/ i& z9 k End If
2 D6 n8 |1 Z4 K Loop
3 L$ _7 G3 i- q4 |' _ R = Y ^ 2 / 40 '小圆半径
3 f2 C/ U/ J7 Z% ` O1(0) = R - 10 ~3 i$ m, L( {0 c# N
O1(1) = Y '各点赋值
, r! f% H' h+ P O2(0) = Sqr(0.5) * (10 + R)& i' Y6 L1 N8 m
O2(1) = O2(0)& T& D/ p* ]* G" u; O( i0 g, O
O3(0) = O1(1)
) G5 d; D$ s" h O3(1) = O1(0)
# a$ g& z6 f0 d. w+ ?; I# s P1(0) = -10
" Y) s/ z0 @/ {% X) X+ E% [ P1(1) = -10
4 \2 E- T0 B( q) r- @ P2(0) = -103 y' D& w1 ~! N7 H
P2(1) = 20" v- y7 }* W% Q Z
P3(0) = 20& p( e+ r$ }3 p' i8 t6 B
P3(1) = -102 ], Y L7 Y. j# j" F4 \+ F
With ThisDrawing
7 h6 C9 I: s* f3 v9 p. K .ModelSpace.AddLine P1, P2 '画直线
" e/ ^5 \ D; ^/ c9 l3 r .ModelSpace.AddLine P1, P3
, e/ E7 `2 i5 g& e .ModelSpace.AddCircle O, 10 '画大圆
, h8 B& Y/ ]7 U7 k .ModelSpace.AddCircle O1, R '画三个小圆
( s$ W. L& [& c9 T0 h .ModelSpace.AddCircle O2, R1 n' Z- B7 v+ B1 _9 Z# h
.ModelSpace.AddCircle O3, R
3 t0 @" t5 s; K9 y# Q# c End With5 I( `2 x7 b; C% H6 l: O
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