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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：: U9 V* V v* k$ B7 x
' f/ v E# h- p" F
Sub A() '本程序以20圆的圆心为坐标原点" @6 h n7 M+ {+ m3 `( y
Dim Y As Double '左上方小圆圆心纵坐标 R4 ]* _% p; C. w0 e {2 a
Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量
) y: Z" s& n8 d/ | N% [ Dim R As Double '小圆半径
9 S" o' v# v7 Z3 x- G Dim O(2) As Double '坐标原点6 W+ f8 q" l. z" V. w) H# R! W
Dim O1(2) As Double '左上方小圆圆心
; e/ n8 M/ d& k3 N2 s3 s P; B Dim O2(2) As Double '右上方小圆圆心
. E$ p+ O) I9 O$ b Dim O3(2) As Double '右下方小圆圆心
; g& v3 c0 `' k+ o. K4 E3 I0 j Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点
0 `" ~$ Q/ W/ ^5 y/ Y Y1 = 10 '迭代运算边界条件
0 C2 d5 ?+ a8 X2 c: j Y2 = 20
1 e/ ]9 q; d0 |$ p- H+ q Do '计算合适的小圆圆心纵坐标
u0 E; T+ h3 f8 i2 w$ X Y = (Y1 + Y2) / 2) u" x' j5 u! b' Y% Q* n. @9 v
B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)
8 N' N4 R- b6 E If B = 0 Then
3 h6 R( H, r3 ]+ S. E( X Exit Do& o+ w# o2 U% O8 j& {( q4 |
ElseIf Y = Y1 Then
* [: T5 } R" V" Z, \6 j B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)
8 H! v! C* M$ b2 K0 P6 b" a If Abs(B1) < Abs(B) Then Y = Y21 ^! h& T, A- ~- \
Exit Do8 @1 E. I/ w j7 i
ElseIf Y = Y2 Then$ D2 F# ~, z6 v9 J4 o0 f
B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)
# u( E6 a/ K3 ~# |1 N( Z# M If Abs(B1) < Abs(B) Then Y = Y1) r5 C) C1 {: U: s" Q7 l# h' u1 [
Exit Do; i3 |$ [) w8 B# v3 f* k+ K. a
ElseIf B > 0 Then
# N) S G1 X1 B: ~0 N6 D Y1 = Y& S3 F, E7 v% |$ _
Else
$ @& S3 W% x. w Y2 = Y; I5 \, A# @" _0 F+ k% E) V
End If
. A1 o2 Y3 S5 v4 W5 r Loop" {+ H* s! ?& r: L
R = Y ^ 2 / 40 '小圆半径
% P7 C/ J t! ]- r; X O1(0) = R - 100 s. J! F* L+ ^2 p
O1(1) = Y '各点赋值/ D$ _$ H7 ~6 r F# O
O2(0) = Sqr(0.5) * (10 + R)
* Q' y0 s) X. Y z O2(1) = O2(0)0 [1 ]7 |7 d; n- T+ v
O3(0) = O1(1)- w$ Y( }9 D$ D1 z( O
O3(1) = O1(0)% @( i* k3 G( r; R- n- `
P1(0) = -10 r& _( Q: @5 |1 f! V
P1(1) = -10
5 T5 j% |; i- O/ N M P2(0) = -10
" V9 h+ e- e& W P2(1) = 20& _# s" N {- o% \
P3(0) = 20
! Y U o1 u" J9 N' {$ O3 n P3(1) = -10
# u" z3 P4 F4 K+ s& f With ThisDrawing
. }4 _; `8 e2 \* C: P9 d .ModelSpace.AddLine P1, P2 '画直线
# M2 X/ c% T- p4 p, n .ModelSpace.AddLine P1, P3/ g* Q6 C+ n1 _; S# o
.ModelSpace.AddCircle O, 10 '画大圆$ u3 z' ?0 K0 w9 J
.ModelSpace.AddCircle O1, R '画三个小圆; ^5 _; ]5 |( F+ _& m( o' [7 n0 `
.ModelSpace.AddCircle O2, R
3 \. }2 z9 B0 {% z& o .ModelSpace.AddCircle O3, R
& R8 L2 x, V! o6 P- c End With
" {. j1 S* P6 D8 oEnd 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