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

3 S4 c) D" M0 p6 J7 b( p. J7 `( N

1. //------------------------------------------------------------------------------
   4 f- H3 s1 z. ~9 l) m/ z
2. // Select Screen Position and map to Modeling View Plane
   0 r- G% g, c5 j: C: M- H, ]
3. //------------------------------------------------------------------------------
   
4. bool GtacPmi::SelectPmiPosition(NXOpen::Point3d &pos)
   
5. {
   - _- K2 t. O/ ?- s! h
6.     NXOpen::View* myView = NULL;
   ) e" a2 S  j, [1 ?3 }
7.     NXOpen::Point3d myCursor(0, 0, 0);
   
8. 
   
9.     NXOpen::Selection::DialogResponse myResponse = m_ui->SelectionManager()->SelectScreenPosition("Select Screen Origin", &myView, &myCursor);
   
10.     if (myResponse == NXOpen::Selection::DialogResponsePick)
    - i# _' ~: |- G/ \
11.     {
    
12.         // obtain the current default annotation plane where PMIs are placed on
    1 T3 p6 u# J; L7 `6 b
13.         NXOpen::Xform *xform1;
    
14.         xform1 = m_wpart->Annotations()->GetDefaultAnnotationPlane(NXOpen::Annotations::PmiDefaultPlaneModelView);
    
15.         NXOpen::Matrix3x3 vmxDefaultPlane = xform1->Orientation();
    
16.         NXOpen::Point3d ptDefaultPlane = xform1->Origin();
    
17.         NXOpen::Vector3d vecDefaultPlane(vmxDefaultPlane.Zx, vmxDefaultPlane.Zy, vmxDefaultPlane.Zz);
    
18. 
    
19.         // create the ray 'into the screen' at the selected cursor position
    # u" q7 E: I1 k- e
20.         NXOpen::Matrix3x3 vmx = myView->Matrix();
    # N/ J6 m' b# h4 _  n
21.         NXOpen::Point3d p1(myCursor.X - vmx.Zx * 1000, myCursor.Y - vmx.Zy * 1000, myCursor.Z - vmx.Zz * 1000);
    # n7 U2 g) x( R  y( B' [4 o$ v
22.         NXOpen::Point3d p2(myCursor.X + vmx.Zx * 1000, myCursor.Y + vmx.Zy * 1000, myCursor.Z + vmx.Zz * 1000);
    
23.         NXOpen::Line *lineRay = m_wpart->Curves()->CreateLine(p1, p2);
    
24.         lineRay->SetName("Ray");
    9 Q5 N6 Z/ z; D
25. 
    " y- Q$ S# E% T: r) L. O
26.         // create the plane from the view to intersect with the ray
    4 `* p, X2 k8 l
27.         NXOpen::Plane *planeView = m_wpart->Planes()->CreatePlane(ptDefaultPlane, vecDefaultPlane, NXOpen::SmartObject::UpdateOptionWithinModeling);
    
28.         planeView->SetVisibility(NXOpen::SmartObject::VisibilityOptionVisible);
    % U' [- F) F$ c9 Y
29.         planeView->SetName("ViewPlane");
    
30. 
    : t6 T: T5 s) n/ p" N& [+ _
31.         // now create the intersection point
    
32.         NXOpen::Point *pntInterSect = m_wpart->Points()->CreatePoint(planeView, lineRay, NULL, NULL, NXOpen::SmartObject::UpdateOptionWithinModeling);
    ( y2 U6 F7 @9 C, \* e
33.         pntInterSect->SetVisibility(NXOpen::SmartObject::VisibilityOptionVisible);
    ! [7 a7 r' L! [+ l+ O6 g( @& G
34.         pntInterSect->SeTColor(10);
    
35.         pntInterSect->SetName("Intersection");
    
36. 
    
37.         pos = pntInterSect->Coordinates();
    
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");
    
42.         int nErrs1 = m_session->UpdateManager()->AddToDeleteList(pntInterSect);
    . q% h5 s- h/ J
43.         int nErrs2 = m_session->UpdateManager()->AddToDeleteList(planeView);
    
44.         int nErrs3 = m_session->UpdateManager()->AddToDeleteList(lineRay);
    
45.         int nErrs4 = m_session->UpdateManager()->DoUpdate(markDel);
    
46.         m_session->DeleteUndoMark(markDel, NULL);
    
47. 
    
48.         return true;
    # @+ G+ G9 ?6 Z; A; @. y
49.     }
    ! D0 k$ q/ \  O$ r
50. 
    4 c) v* i+ g; U' b2 O/ c( k7 C
51.     return false;
    
52. }

复制代码

+ K  [8 n/ k' n0 l7 b