|
|
马上注册，结识高手，享用更多资源，轻松玩转三维网社区。
您需要 登录 才可以下载或查看，没有帐号？注册
x
做两个圆求交点，然后判断，两圆有交点时，程序运行正常。3 L2 r% Q1 L! I8 F. u
问题出在没有交点时，我本想输出对话框提示，然而系统报警，说“类型不匹配”，各位看看怎么回事？
Y; X$ l* d+ }+ |8 X: _代码如下：1 j+ K. q w) d& Q$ M2 Q
Private Function GetFSupportCenter(BSupportCenter As Variant, FSwingBasePoint As Variant) As Variant
9 K6 L; D% B# eDim Testlayer As AcadLayer7 b& T% T h1 d
Dim ObjCircle1 As AcadCircle '辅助圆* k8 X9 P9 `$ X. C# k r/ B
Dim ObjCircle2 As AcadCircle g( C* `" R9 n
Dim SWingLength As Double3 n4 E6 r% } j3 C
Dim SWingPitch As Double7 O$ n$ K' M! s4 Z8 P
Dim PT(0 To 2) As Double
7 i: n8 q ^) f* Y* t) gSet Testlayer = ThisDrawing.Layers.Add("非显示层" ) '辅助线位于非显示层
7 ?' b5 U, o8 ~) Y- CTestlayer.color = acRed( n% ]3 L/ X6 ^6 Z, n% }
ThisDrawing.Application.ActiveDocument.ActiveLayer = Testlayer '激活图层6 E0 M% B8 I- T( l& Y
Testlayer.LayerOn = True8 S u8 [, p, Y& ?# ]2 d" ~
SWingLength = 26078 u1 A+ y. S7 t$ `& K# _. |6 `. B
SWingPitch = 3250# v& L- E" K2 y+ _5 a
' h- B: c+ x h; Z( a' z) l
Set ObjCircle1 = ThisDrawing.ModelSpace.AddCircle(FSwingBasePoint, SWingLength) '作辅助线
# Y' [/ A5 o3 fSet ObjCircle2 = ThisDrawing.ModelSpace.AddCircle(BSupportCenter, SWingPitch): s# z% W/ U- M8 V) }
! U w, ?2 G4 b9 F
Dim IntPoints As Variant
f( l& ]9 L) f3 o0 _ IntPoints = ObjCircle2.IntersectWith(ObjCircle1, acExtendNone) '获取交点并判断
9 r/ h! r5 d6 e8 c- F! i) N; r% J; a; G* [
If VarType(IntPoints) = vbEmpty Then% F' ?% p( [5 g
MsgBox "没有交点!"
5 T& N7 X) r6 e7 e% a) ?' c# e' cElseIf BSupportCenter(1) = FSwingBasePoint(1) Then' l1 a$ G$ d ]5 u2 ?. L
For i = LBound(IntPoints) + 1 To UBound(IntPoints) Step 3
2 {# K7 e8 \& Q5 S On Error Resume Next9 o3 ] D9 K A$ A5 b0 @0 b
If IntPoints(i) < BSupportCenter(1) Then$ V" h9 K) E& A
PT(0) = IntPoints(i - 1): PT(1) = IntPoints(i): PT(2) = IntPoints(i + 1): }* h6 O% a1 j+ J8 _
GetFSupportCenter = PT '函数返回值
8 Z: g! \) {) j2 n/ E$ J End If
9 J) B0 }" f; n8 A) q! |+ s Next
" r% Y& ^' Z; ]Else; b' [# J6 ]/ e9 S% v
For i = LBound(IntPoints) To UBound(IntPoints) Step 3
1 L* D+ Y: N2 A' T On Error Resume Next( K R* T6 D# E! H8 A n6 o0 T
If (IntPoints(i + 1) - FSwingBasePoint(1)) / (BSupportCenter(1) - FSwingBasePoint(1)) - (IntPoints(i) - FSwingBasePoint(0)) / (BSupportCenter(0) - FSwingBasePoint(0)) < 0 Then
( g, m$ m; h* |9 M( ] PT(0) = IntPoints(i): PT(1) = IntPoints(i + 1): PT(2) = IntPoints(i + 2)! f8 c' ^) e6 A
GetFSupportCenter = PT '函数返回值
9 l' }3 j6 s3 o' N) q End If# `* f# u9 o/ q) D& a. [7 W9 D
Next+ t8 U1 h4 [7 X/ b! N+ x4 A
End If
6 V5 Q$ r/ s) s% {'ObjCircle1.Delete0 y( Z. q- {/ Y- a( L( a0 O
'ObjCircle2.Delete
+ H9 e) V3 i1 {8 lEnd Function
- \# F' c% x6 b* `
% I1 [: \* _- @# e1 [Sub trial()
# n$ s( I! p% MDim A As Variant
3 H& Y+ B# d1 @0 v9 h" QDim B As Variant$ M% Y) A1 l6 K( m- r. Q, Q& Q6 A$ K' Q
Dim C As Variant
1 @: o! H% ^$ j2 uA = ThisDrawing.Utility.GetPoint(, "后支撑碗中心：" ). k2 ~' @; R7 | I" d" N4 [
B = ThisDrawing.Utility.GetPoint(, "前摆杆上铰接点：" ): t5 Y- c5 b- p3 g) d1 ]
C = GetFSupportCenter(A, B)1 W ? a' ^5 m4 m8 u
MsgBox "前支撑碗中心坐标：" & C(0) & "," & C(1) & "," & C(2)
+ D5 W6 J( x; `; Y2 k) N, WEnd Sub |
评分
-
查看全部评分
|
发表于 2008-12-6 16:38:29
发表于 2008-12-6 18:27:44