如何获取选择点映射到视图空间中？源码分享

admin

如何获取选择点映射到视图空间中？源码分享

1. //------------------------------------------------------------------------------
   ( A* f) d6 A1 m, k
2. // Select Screen Position and map to Modeling View Plane
   
3. //------------------------------------------------------------------------------
   ! j; s0 @+ T, P2 V( z, j7 N8 S& a
4. bool GtacPmi::SelectPmiPosition(NXOpen::Point3d &pos)
   
5. {
   
6.     NXOpen::View* myView = NULL;
   ( a( K; y- \! N; N$ t: h, K5 q
7.     NXOpen::Point3d myCursor(0, 0, 0);
     ~7 @* Y: g( Z, h
8. 
   
9.     NXOpen::Selection::DialogResponse myResponse = m_ui->SelectionManager()->SelectScreenPosition("Select Screen Origin", &myView, &myCursor);
   
10.     if (myResponse == NXOpen::Selection::DialogResponsePick)
    
11.     {
    2 h8 |# R+ I. k& b% C, Y
12.         // obtain the current default annotation plane where PMIs are placed on
    
13.         NXOpen::Xform *xform1;
    6 J) i: e# B. X( E
14.         xform1 = m_wpart->Annotations()->GetDefaultAnnotationPlane(NXOpen::Annotations::PmiDefaultPlaneModelView);
    ) R! S; k7 O2 _" F5 _5 j( o* z8 x- N
15.         NXOpen::Matrix3x3 vmxDefaultPlane = xform1->Orientation();
    
16.         NXOpen::Point3d ptDefaultPlane = xform1->Origin();
    
17.         NXOpen::Vector3d vecDefaultPlane(vmxDefaultPlane.Zx, vmxDefaultPlane.Zy, vmxDefaultPlane.Zz);
    3 @" |% f2 J' W( d- A% r( v
18. 
    
19.         // create the ray 'into the screen' at the selected cursor position
    
20.         NXOpen::Matrix3x3 vmx = myView->Matrix();
    2 e, G7 h+ _2 U' x( N4 F) C
21.         NXOpen::Point3d p1(myCursor.X - vmx.Zx * 1000, myCursor.Y - vmx.Zy * 1000, myCursor.Z - vmx.Zz * 1000);
    7 ?, j! d: |  q% j$ }
22.         NXOpen::Point3d p2(myCursor.X + vmx.Zx * 1000, myCursor.Y + vmx.Zy * 1000, myCursor.Z + vmx.Zz * 1000);
    3 ?- U" r" i# ~1 H, G# O
23.         NXOpen::Line *lineRay = m_wpart->Curves()->CreateLine(p1, p2);
    
24.         lineRay->SetName("Ray");
    & O$ Q9 I( b& h- ?
25. 
    % g: Q: J8 o0 N  j0 K. I! a2 Z+ ~2 ~
26.         // create the plane from the view to intersect with the ray
    
27.         NXOpen::Plane *planeView = m_wpart->Planes()->CreatePlane(ptDefaultPlane, vecDefaultPlane, NXOpen::SmartObject::UpdateOptionWithinModeling);
    
28.         planeView->SetVisibility(NXOpen::SmartObject::VisibilityOptionVisible);
    " j" R9 y/ d( c  e6 }! s
29.         planeView->SetName("ViewPlane");
      |3 y0 {. i0 N' U  p
30. 
    5 K5 U& P- t: e" E# e& F
31.         // now create the intersection point
    
32.         NXOpen::Point *pntInterSect = m_wpart->Points()->CreatePoint(planeView, lineRay, NULL, NULL, NXOpen::SmartObject::UpdateOptionWithinModeling);
    4 s: N; F& g7 e2 H
33.         pntInterSect->SetVisibility(NXOpen::SmartObject::VisibilityOptionVisible);
    / j) k( ~. A* k8 u7 R, C
34.         pntInterSect->SeTColor(10);
    ) q) ^9 Z4 _3 R1 h! K3 h
35.         pntInterSect->SetName("Intersection");
    8 a: E9 `5 r8 o$ s1 _/ A5 d1 X
36. 
    
37.         pos = pntInterSect->Coordinates();
    ; F* G3 w. D5 q3 o# J' _/ O
38.         print("\nPMI Position:", pos);
    
39. 
    
40.         // clean up - comment to see intermediate objects
    
41.         NXOpen::Session::UndoMarkId markDel = m_session->SetUndoMark(NXOpen::Session::MarkVisibilityVisible, "Delete");
    , U$ \9 y0 o; J' E
42.         int nErrs1 = m_session->UpdateManager()->AddToDeleteList(pntInterSect);
      N5 R/ g, U% E8 u0 D9 K
43.         int nErrs2 = m_session->UpdateManager()->AddToDeleteList(planeView);
    # ]0 r. n( m& S3 T+ Z* x
44.         int nErrs3 = m_session->UpdateManager()->AddToDeleteList(lineRay);
    ; R* D& ?6 k7 W! W! u" u  c2 l5 c
45.         int nErrs4 = m_session->UpdateManager()->DoUpdate(markDel);
    ' d2 N+ X) B& A; b9 H1 Y4 z9 v9 n
46.         m_session->DeleteUndoMark(markDel, NULL);
    
47. 
    
48.         return true;
    
49.     }
    ; D% M( M8 `6 |8 ~8 V6 y8 {
50. 
    
51.     return false;
    
52. }

复制代码

. |2 b5 N5 U2 C( x# @- P7 b