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发表于 2015-1-19 12:32:28
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怎么没人回呢? - Sub C3PE()
/ }! u8 b9 l$ b0 A: \+ _% R/ [, | - Dim P0(2) As Double, P1 As Variant, P2 As Variant, P3 As Variant, P4 As Variant
- v/ \+ j4 m) r6 x - Dim X1 As Double, Y1 As Double, X2 As Double, Y2 As Double, X3 As Double, Y3 As Double3 [7 F- y$ j% F' a4 i8 h
- Dim A As Double, B As Double, C As Double, F As Double, Ang As Double, R1 As Double, R2 As Double5 z% p8 H" _, Z! F4 t
- On Error GoTo 102 j# z/ m3 A* z$ L1 A6 ]6 [
- With ThisDrawing
5 U# c5 L% G' w& e2 K" Z/ l- L - P1 = .Utility.GetPoint(, "指定中心点")) H/ x7 V/ x, I+ z. C) V) }
- P2 = .Utility.GetPoint(, "指定第一点")( a! l; @% E. W( D
- P3 = .Utility.GetPoint(, "指定第二点")
+ [4 S( _9 w7 r: n3 r2 \) f2 O6 i5 v - P4 = .Utility.GetPoint(, "指定第三点")
% W; _. t5 f: U. z$ d( x - X1 = P2(0) - P1(0)
& M# v! J9 k* T; N7 k! K6 x - Y1 = P2(1) - P1(1)# x8 R7 s; F4 \: c1 A
- X2 = P3(0) - P1(0)
6 ]7 C' Y0 Y) S8 s5 h% e - Y2 = P3(1) - P1(1)
, A; o2 e' K; _3 \ - X3 = P4(0) - P1(0)3 }% K! y" o- u" ~$ Z! E' v% o
- Y3 = P4(1) - P1(1)
2 h* d2 |$ I) m; j8 v - A = (X1 * Y1 - X2 * Y2) * (Y1 ^ 2 - Y3 ^ 2) - (X1 * Y1 - X3 * Y3) * (Y1 ^ 2 - Y2 ^ 2)' _. |) Y2 c0 s/ m& M1 J4 ~ T8 T1 `7 [
- If A <> 0 Then, `: c: F# L0 C, P( i( P
- B = ((X1 ^ 2 - X2 ^ 2) * (X1 * Y1 - X3 * Y3) - (X1 ^ 2 - X3 ^ 2) * (X1 * Y1 - X2 * Y2)) / A
2 r2 @1 _. M& d - C = ((X1 ^ 2 - X3 ^ 2) * (Y1 ^ 2 - Y2 ^ 2) - (X1 ^ 2 - X2 ^ 2) * (Y1 ^ 2 - Y3 ^ 2)) / A
/ q @& G+ p9 ^# k4 O. o7 D - F = -X1 ^ 2 - B * Y1 ^ 2 - C * X1 * Y1
8 k. y7 m) e w5 a R% w5 Y* j! V - If C = 0 Then
, U+ v7 t( ^ P3 Y0 _# l$ V+ w - If B > 0 And F < 0 Then
# [2 g* Z P& I2 H; t) b - Ang = 0
j6 H T9 U% ?; [1 ^ - R1 = Sqr(-F)
! e5 }. x4 m- w" p o" X+ _6 J - R2 = Sqr(-F / B)6 w, g7 s6 ?* L8 L: {3 D) ^5 U
- Else
3 t5 L! ?' @$ S! R2 |- T - Exit Sub$ s- `( \0 q# z$ Z1 j3 S& S! {) F7 D- i
- End If
" @7 n2 p7 _& Q$ G! C4 H4 G' B - Else2 _) `" P* @: u9 V
- If B = 1 Then& _6 |1 U g) z# C( g( t2 e
- If F < 0 And C > -2 And C < 2 Then5 r0 d) B6 n9 t% l" q
- Ang = .Utility.AngleToReal(45, acDegrees)# ~% O" |& ]6 U
- R1 = Sqr(-2 * F / (2 + C))
3 {* b! C9 N! `* w, p - R2 = Sqr(-2 * F / (2 - C))
. E! G5 _! [7 I3 b5 ^ - Else1 R7 D0 a( \% Z. t# L
- Exit Sub. Y1 f' { s% S/ n3 o& c
- End If: `# M) t7 Z9 S
- Else" M+ `, w0 a0 k F6 P) x/ b
- Ang = Atn(C / (1 - B)) / 2# _' m0 F1 ~8 ]5 o% F! M/ f" M
- If Ang < 0 Then Ang = Ang + .Utility.AngleToReal(90, acDegrees)/ v+ b) }8 l. U
- If B > -1 And F < 0 And C > -(1 + B * Tan(Ang) ^ 2) / Tan(Ang) And C < (B + Tan(Ang) ^ 2) / Tan(Ang) Or _
# p! W# w, j; w9 O& N( G* ~ - B < -1 And F > 0 And C > (B + Tan(Ang) ^ 2) / Tan(Ang) And C < -(1 + B * Tan(Ang) ^ 2) / Tan(Ang) Then
* b5 u- V/ v' M. j - R2 = -F * (1 + Tan(Ang) ^ 2)
5 [: Y' X9 { a! p% m/ b) R/ E - R1 = Sqr(R2 / (1 + B * Tan(Ang) ^ 2 + C * Tan(Ang)))
7 r V3 t, o" }5 a; Y! t+ Y - R2 = Sqr(R2 / (B + Tan(Ang) ^ 2 - C * Tan(Ang)))4 ?! F8 S, I5 G1 s
- Else0 K- n) J& q$ O/ O1 X
- Exit Sub
1 b* ~( v( T; L - End If6 ]3 V9 |0 K; N( c* q0 @
- End If
7 R# r4 A# B: O3 P! @! [; R - End If
/ T" A3 a- t( D1 T3 p+ _0 C9 t1 n, O - Else
M5 w6 x8 X! c1 C( ? - Exit Sub5 I" `4 W2 ^" S5 H4 S$ f
- End If+ @1 [8 J# @1 t1 c0 @5 H, D( Y( v
- If R2 < R1 Then
9 p& y' a$ G# O7 f% S ]# a - .ModelSpace.AddEllipse P1, .Utility.PolarPoint(P0, Ang, R1), R2 / R1, ]) D2 ~) Q3 i3 [6 P
- Else
" G8 J3 W/ b1 W' J0 b, D - .ModelSpace.AddEllipse P1, .Utility.PolarPoint(P0, Ang + .Utility.AngleToReal(90, acDegrees), R2), R1 / R21 Y5 f" W0 m7 C$ @0 m6 [2 |2 v
- End If
1 p, t9 W N; O - End With" i- y8 I K( i. i! [; u' m h
- 10 End Sub
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发表于 2015-1-14 00:13:04
发表于 2015-1-19 14:23:08
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