|
发表于 2015-1-19 12:32:28
|
显示全部楼层
怎么没人回呢?- Sub C3PE()
, r/ u! Y- d3 R. z( q - Dim P0(2) As Double, P1 As Variant, P2 As Variant, P3 As Variant, P4 As Variant
: L1 B! k/ G5 @/ o" E3 _' u - Dim X1 As Double, Y1 As Double, X2 As Double, Y2 As Double, X3 As Double, Y3 As Double4 d* E% N1 }7 ?% z1 S* k& ]6 L
- Dim A As Double, B As Double, C As Double, F As Double, Ang As Double, R1 As Double, R2 As Double
9 u7 ^2 R" O b+ M" Q2 B9 V( u - On Error GoTo 10' r$ Y9 X5 e+ l, ~! \' d
- With ThisDrawing
. L0 }# [8 x% @0 f) `* b% v - P1 = .Utility.GetPoint(, "指定中心点")# m* B& E: x+ N, A1 A& c1 B" N# P
- P2 = .Utility.GetPoint(, "指定第一点")2 q6 ~) r! b! `, a8 i$ n
- P3 = .Utility.GetPoint(, "指定第二点")7 _. ]1 u; l! u5 Z+ @& X
- P4 = .Utility.GetPoint(, "指定第三点"): n$ L7 ?/ J+ { _& D z$ N
- X1 = P2(0) - P1(0)8 W. Z: v$ s+ t8 L9 z9 J
- Y1 = P2(1) - P1(1) w q: C( B' i/ ^5 P% A# Y1 t
- X2 = P3(0) - P1(0)9 j5 q( ^9 [- N6 P- l r
- Y2 = P3(1) - P1(1)
8 H2 m1 _3 J' n - X3 = P4(0) - P1(0)& k0 S$ b: Z9 B( \. h1 N" {
- Y3 = P4(1) - P1(1)
$ d! |* j' x& `9 n7 r" b - A = (X1 * Y1 - X2 * Y2) * (Y1 ^ 2 - Y3 ^ 2) - (X1 * Y1 - X3 * Y3) * (Y1 ^ 2 - Y2 ^ 2)
, \0 n) d6 @( r - If A <> 0 Then5 D1 v! r8 r/ T, w) k3 O) V
- B = ((X1 ^ 2 - X2 ^ 2) * (X1 * Y1 - X3 * Y3) - (X1 ^ 2 - X3 ^ 2) * (X1 * Y1 - X2 * Y2)) / A* P$ o0 Y7 Y1 U, t, ]1 d
- C = ((X1 ^ 2 - X3 ^ 2) * (Y1 ^ 2 - Y2 ^ 2) - (X1 ^ 2 - X2 ^ 2) * (Y1 ^ 2 - Y3 ^ 2)) / A% z7 m5 r; k# H
- F = -X1 ^ 2 - B * Y1 ^ 2 - C * X1 * Y1
9 [+ U( {& q* ~3 z - If C = 0 Then0 f9 M3 n3 j& J! Z1 e5 y; Q6 a- N
- If B > 0 And F < 0 Then
) b1 z' a5 _! y' T& p) @9 H - Ang = 04 P$ J! m) h: \# l: H8 J( v* H' G
- R1 = Sqr(-F)' R. z7 |5 m. l8 X/ K6 p" f1 H
- R2 = Sqr(-F / B)6 W: N3 G' }+ m' q# d
- Else
4 y7 T' F d7 w9 L* K - Exit Sub
1 u. y' O. w/ _ - End If; C4 |3 `$ S# L
- Else
8 O: t7 A5 P) ]9 X. H( y - If B = 1 Then+ Q ~+ {. _! {
- If F < 0 And C > -2 And C < 2 Then, y/ F+ ^6 I) W' K' c, h
- Ang = .Utility.AngleToReal(45, acDegrees)( F- _" Z, E1 ~% ^% m, {( D3 r
- R1 = Sqr(-2 * F / (2 + C))
& h4 G' H- h5 i - R2 = Sqr(-2 * F / (2 - C))8 w; L! P( P& j( R) N8 L4 o' L
- Else
% c, t; f/ q; S - Exit Sub
8 }3 D. z V$ X# Z7 P* R) I - End If
+ A2 S" }) d; G6 ?; A0 o5 v: V - Else
1 R: s1 g1 {1 t* X' U; E( D - Ang = Atn(C / (1 - B)) / 2. e$ [; _4 k1 f7 u
- If Ang < 0 Then Ang = Ang + .Utility.AngleToReal(90, acDegrees)
1 l: @7 d& X9 T c3 }1 W; a9 T - If B > -1 And F < 0 And C > -(1 + B * Tan(Ang) ^ 2) / Tan(Ang) And C < (B + Tan(Ang) ^ 2) / Tan(Ang) Or _
# V% o8 }6 w$ ~) g+ ? - B < -1 And F > 0 And C > (B + Tan(Ang) ^ 2) / Tan(Ang) And C < -(1 + B * Tan(Ang) ^ 2) / Tan(Ang) Then
8 n1 g1 f$ d: L - R2 = -F * (1 + Tan(Ang) ^ 2)
5 d! G. X2 d/ _, m" N3 f - R1 = Sqr(R2 / (1 + B * Tan(Ang) ^ 2 + C * Tan(Ang)))5 y! G( X5 B; N9 z
- R2 = Sqr(R2 / (B + Tan(Ang) ^ 2 - C * Tan(Ang)))& s! x( {) \, v9 y4 `
- Else
! A {2 V$ o: }( W7 ^' i - Exit Sub
8 j1 _: j8 H1 r4 V - End If; j+ d0 @! i1 X
- End If
+ A; [5 @3 A* |! x6 i3 s - End If
7 _, _( q0 K& `3 \ - Else
- K C9 v* ]) ` - Exit Sub
" M* ]" M! w1 D* P8 r0 s - End If* }% I5 j$ O: v. J# k. P/ t$ H
- If R2 < R1 Then0 q) z" m- K7 c
- .ModelSpace.AddEllipse P1, .Utility.PolarPoint(P0, Ang, R1), R2 / R1/ E. G8 u- V9 ]' i$ @. ?; k2 X( ^/ Z
- Else% A" s5 F, q+ P5 E3 l9 f5 @( E
- .ModelSpace.AddEllipse P1, .Utility.PolarPoint(P0, Ang + .Utility.AngleToReal(90, acDegrees), R2), R1 / R28 ]. z. F& k1 X" s1 u* K6 u: h7 b
- End If2 Q" h* e" N: m/ q4 s( }
- End With
! o; j- z8 {! p0 h, F/ ?: A - 10 End Sub
复制代码 |
评分
-
查看全部评分
|