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[资料分享] 如何获取选择点映射到视图空间中?源码分享

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2023-7-15 12:08:47 1357 0

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2023-7-15 12:08:47

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# O0 H* I: e5 Z, k" s* X如何获取选择点映射到视图空间中?源码分享
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  1. //------------------------------------------------------------------------------/ Y6 o/ U' E% ?3 p, ?
  2. // Select Screen Position and map to Modeling View Plane- N# s( g5 _- f% S. K1 B  A. Z2 G( p
  3. //------------------------------------------------------------------------------7 h9 f. `, S; h3 L. Q+ H- L
  4. bool GtacPmi::SelectPmiPosition(NXOpen::Point3d &pos)0 U6 K' J3 ^/ t% R$ h! N$ X7 z) K, C
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  6.     NXOpen::View* myView = NULL;
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  7.     NXOpen::Point3d myCursor(0, 0, 0);
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  9.     NXOpen::Selection::DialogResponse myResponse = m_ui->SelectionManager()->SelectScreenPosition("Select Screen Origin", &myView, &myCursor);
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  10.     if (myResponse == NXOpen::Selection::DialogResponsePick)2 P4 O2 q! P' v3 I2 O( M& m8 k0 d; s
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  12.         // obtain the current default annotation plane where PMIs are placed on
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  13.         NXOpen::Xform *xform1;
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  14.         xform1 = m_wpart->Annotations()->GetDefaultAnnotationPlane(NXOpen::Annotations::PmiDefaultPlaneModelView);+ z7 E& i+ B, {) }- [
  15.         NXOpen::Matrix3x3 vmxDefaultPlane = xform1->Orientation();9 R7 a2 e8 X5 |% M* Q
  16.         NXOpen::Point3d ptDefaultPlane = xform1->Origin();$ I% C0 e8 H( `) w2 N
  17.         NXOpen::Vector3d vecDefaultPlane(vmxDefaultPlane.Zx, vmxDefaultPlane.Zy, vmxDefaultPlane.Zz);
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  18. " w, V" Z. L( w' I
  19.         // create the ray 'into the screen' at the selected cursor position0 n: I( ]& k- w) i8 x
  20.         NXOpen::Matrix3x3 vmx = myView->Matrix();9 q$ @5 N% p" D, Q/ X6 U, c
  21.         NXOpen::Point3d p1(myCursor.X - vmx.Zx * 1000, myCursor.Y - vmx.Zy * 1000, myCursor.Z - vmx.Zz * 1000);
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  22.         NXOpen::Point3d p2(myCursor.X + vmx.Zx * 1000, myCursor.Y + vmx.Zy * 1000, myCursor.Z + vmx.Zz * 1000);, ^6 q2 m8 Z  {, z/ p! q" o
  23.         NXOpen::Line *lineRay = m_wpart->Curves()->CreateLine(p1, p2);/ K3 ~, g( T5 I' L! C
  24.         lineRay->SetName("Ray");' c- G+ o4 D+ I

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  26.         // create the plane from the view to intersect with the ray
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  27.         NXOpen::Plane *planeView = m_wpart->Planes()->CreatePlane(ptDefaultPlane, vecDefaultPlane, NXOpen::SmartObject::UpdateOptionWithinModeling);) P! C+ M0 y- `% s
  28.         planeView->SetVisibility(NXOpen::SmartObject::VisibilityOptionVisible);  }7 e* j2 o0 R3 Q  }
  29.         planeView->SetName("ViewPlane");
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  30. ( G" |7 i% U; V" U5 A( I
  31.         // now create the intersection point
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  32.         NXOpen::Point *pntInterSect = m_wpart->Points()->CreatePoint(planeView, lineRay, NULL, NULL, NXOpen::SmartObject::UpdateOptionWithinModeling);
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  33.         pntInterSect->SetVisibility(NXOpen::SmartObject::VisibilityOptionVisible);3 U* E0 k- P0 T" f
  34.         pntInterSect->SeTColor(10);
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  35.         pntInterSect->SetName("Intersection");
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  36. ! E7 O8 K6 i; V) P% Z# i
  37.         pos = pntInterSect->Coordinates();: n3 ?& b! C; O
  38.         print("\nPMI Position:", pos);+ U2 _/ n' F0 B$ E, K' Z, z" P

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  40.         // clean up - comment to see intermediate objects8 Z6 Z+ \- O. V" I* O) A
  41.         NXOpen::Session::UndoMarkId markDel = m_session->SetUndoMark(NXOpen::Session::MarkVisibilityVisible, "Delete");* F- v& \( |, ?9 w' G8 B0 y
  42.         int nErrs1 = m_session->UpdateManager()->AddToDeleteList(pntInterSect);
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  43.         int nErrs2 = m_session->UpdateManager()->AddToDeleteList(planeView);- C8 \) z0 a, v" H+ j7 b& G
  44.         int nErrs3 = m_session->UpdateManager()->AddToDeleteList(lineRay);
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  45.         int nErrs4 = m_session->UpdateManager()->DoUpdate(markDel);
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  46.         m_session->DeleteUndoMark(markDel, NULL);2 \4 H8 g" m$ S( r
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  48.         return true;
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  49.     }
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  51.     return false;
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  52. }
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