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发表于 2015-1-19 12:32:28
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来自： 中国辽宁抚顺
怎么没人回呢? - Sub C3PE()6 i# x# ^' a. N' K+ l9 x
- Dim P0(2) As Double, P1 As Variant, P2 As Variant, P3 As Variant, P4 As Variant
/ ~" q7 L6 f: V2 d& R - Dim X1 As Double, Y1 As Double, X2 As Double, Y2 As Double, X3 As Double, Y3 As Double
[6 z* I/ Y. E; ?1 O M" D - Dim A As Double, B As Double, C As Double, F As Double, Ang As Double, R1 As Double, R2 As Double
, H# D" [( x6 |" ?4 l! p - On Error GoTo 10/ [% V* I& N0 A% i8 q
- With ThisDrawing. ]" J9 V, [6 H/ F. T1 j
- P1 = .Utility.GetPoint(, "指定中心点")
H3 m: [. e9 n4 I- ] - P2 = .Utility.GetPoint(, "指定第一点")% b- ^, _6 @5 c& y D9 l) o
- P3 = .Utility.GetPoint(, "指定第二点")0 ?$ D) g/ ~0 W" V
- P4 = .Utility.GetPoint(, "指定第三点")
$ t, N% k0 W" Z, m* z - X1 = P2(0) - P1(0)
% P0 f6 u' k. E, G - Y1 = P2(1) - P1(1)
1 N: s8 T. h% U7 f% b! g - X2 = P3(0) - P1(0)7 ]6 l+ h3 r; R* v2 N- C( W
- Y2 = P3(1) - P1(1)
$ W* y! V; Y8 B& K5 k - X3 = P4(0) - P1(0)" Q" ~' n* D6 }( {7 ?
- Y3 = P4(1) - P1(1)& J% m% A) H2 P+ E
- A = (X1 * Y1 - X2 * Y2) * (Y1 ^ 2 - Y3 ^ 2) - (X1 * Y1 - X3 * Y3) * (Y1 ^ 2 - Y2 ^ 2)
: R/ z+ X. L! X# ^ - If A <> 0 Then) z6 O# h/ V Z n
- B = ((X1 ^ 2 - X2 ^ 2) * (X1 * Y1 - X3 * Y3) - (X1 ^ 2 - X3 ^ 2) * (X1 * Y1 - X2 * Y2)) / A
4 @7 H, c* i) ] - C = ((X1 ^ 2 - X3 ^ 2) * (Y1 ^ 2 - Y2 ^ 2) - (X1 ^ 2 - X2 ^ 2) * (Y1 ^ 2 - Y3 ^ 2)) / A' I/ ]- d( E# G3 ?7 f$ j$ {
- F = -X1 ^ 2 - B * Y1 ^ 2 - C * X1 * Y1
- Q3 j( b( T" i% ], k - If C = 0 Then! P; ~" M8 g1 M, G7 k: B- }
- If B > 0 And F < 0 Then
) c, l2 j! C$ ~/ c7 M* P, p4 j: p - Ang = 0" `: o+ v9 O' w6 f3 k/ l7 q
- R1 = Sqr(-F)
8 i& Q' i! G/ I5 K- [3 _ - R2 = Sqr(-F / B)' X, U0 Y% r. ^$ G) r5 `' ]* \
- Else
4 Y# r7 \1 i; U6 b* i9 @0 y4 q* V - Exit Sub
! p; e8 j* X5 Z3 | - End If8 s5 {- X H* r! G, Y+ h3 R1 f
- Else# ?- ?/ t- x7 z- a$ @+ X+ g( B0 s
- If B = 1 Then
1 @6 s- E0 w; w - If F < 0 And C > -2 And C < 2 Then C D: v7 l% E5 b* |) d+ x: B: X5 Q/ t0 U
- Ang = .Utility.AngleToReal(45, acDegrees)
" p2 S7 _0 O8 F# Z; d - R1 = Sqr(-2 * F / (2 + C))
! t( C- c' m* b" S6 @" y* m - R2 = Sqr(-2 * F / (2 - C))
% a& S: C) A; U. A' B0 R - Else" i0 e1 h) U3 R2 I
- Exit Sub! r5 E* B- U/ W" v
- End If
. m/ e7 \, C' A) j$ v w8 f- n7 `# U" r - Else8 b* B) A9 m& E) a
- Ang = Atn(C / (1 - B)) / 23 u" A4 @4 R5 q, y
- If Ang < 0 Then Ang = Ang + .Utility.AngleToReal(90, acDegrees)
?, J Y/ w9 l- l- ^7 b - If B > -1 And F < 0 And C > -(1 + B * Tan(Ang) ^ 2) / Tan(Ang) And C < (B + Tan(Ang) ^ 2) / Tan(Ang) Or _
! Z; q$ S6 \* g; {( ~) O - B < -1 And F > 0 And C > (B + Tan(Ang) ^ 2) / Tan(Ang) And C < -(1 + B * Tan(Ang) ^ 2) / Tan(Ang) Then
" C8 }$ g9 O* G - R2 = -F * (1 + Tan(Ang) ^ 2)
. c$ G% J3 p2 Z, C - R1 = Sqr(R2 / (1 + B * Tan(Ang) ^ 2 + C * Tan(Ang)))
& z& m3 k* V/ p/ U @ - R2 = Sqr(R2 / (B + Tan(Ang) ^ 2 - C * Tan(Ang))), R9 {4 V: W z, ^1 d
- Else
4 Y2 c2 i" d/ B/ m$ h9 C! p$ G - Exit Sub& ^/ g4 F. j# ]1 r1 ^
- End If$ l- {* i/ f" `1 H( p
- End If3 F/ ~' P+ T" B: V
- End If
$ x1 v4 [$ |9 @% A0 L0 U( |2 {% g - Else
; ~. S/ x7 u" E) l# B - Exit Sub
: k1 F Q# ?- O- @: x - End If6 y( f% @0 n; g) i5 j! s1 X
- If R2 < R1 Then
" g% e) t7 e, W Y- |) v7 ^ - .ModelSpace.AddEllipse P1, .Utility.PolarPoint(P0, Ang, R1), R2 / R19 }" H1 |5 U3 N1 C! R
- Else
. G: H# }9 [! g7 T - .ModelSpace.AddEllipse P1, .Utility.PolarPoint(P0, Ang + .Utility.AngleToReal(90, acDegrees), R2), R1 / R2& t8 r( {7 b, s. L) k% e$ S# e* |! {
- End If
" [, r! Z: u; Y) v - End With1 ?4 ~0 B: f3 a l0 O% Y8 Z
- 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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