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如何获取选择点映射到视图空间中?源码分享1 [+ m" H) r+ \% n! [9 s
2 z) l. o @* h4 ^! P- //------------------------------------------------------------------------------0 h9 g- Q! @7 e& P: D4 l9 t4 T8 ?
- // Select Screen Position and map to Modeling View Plane
7 ?- N' {& s; ~. s - //------------------------------------------------------------------------------
& w# W. a" H- }: B( U0 F - bool GtacPmi::SelectPmiPosition(NXOpen::Point3d &pos)
- k; e4 t) |- d7 D! X! c - {
A& {; m- G, O2 v' H: u& Y+ ?1 r - NXOpen::View* myView = NULL;
3 ]8 _1 B h; ~; i3 |) X - NXOpen::Point3d myCursor(0, 0, 0);# J/ B4 u( r* M1 `$ a+ o
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- NXOpen::Selection::DialogResponse myResponse = m_ui->SelectionManager()->SelectScreenPosition("Select Screen Origin", &myView, &myCursor);( w4 ^$ P) ]- Y7 p
- if (myResponse == NXOpen::Selection::DialogResponsePick)
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- // obtain the current default annotation plane where PMIs are placed on9 O$ Q" s* t3 D! i. Z+ W* d$ J# J
- NXOpen::Xform *xform1;# H2 D, P3 u9 [
- xform1 = m_wpart->Annotations()->GetDefaultAnnotationPlane(NXOpen::Annotations::PmiDefaultPlaneModelView);0 n# M, w9 T" P) M; l& ]1 I9 X
- NXOpen::Matrix3x3 vmxDefaultPlane = xform1->Orientation();( n" @3 F1 Q R% Q( [3 g3 S3 c/ G
- NXOpen::Point3d ptDefaultPlane = xform1->Origin();
7 K! [& q5 W- X2 o, { - NXOpen::Vector3d vecDefaultPlane(vmxDefaultPlane.Zx, vmxDefaultPlane.Zy, vmxDefaultPlane.Zz);
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9 p+ I. c6 }7 Q% Q3 Z! }) V& |! v- // create the ray 'into the screen' at the selected cursor position2 l# L2 a" d' C3 b/ u! d1 ~
- NXOpen::Matrix3x3 vmx = myView->Matrix();
: ~+ W4 Q% U* q: ]( c - NXOpen::Point3d p1(myCursor.X - vmx.Zx * 1000, myCursor.Y - vmx.Zy * 1000, myCursor.Z - vmx.Zz * 1000);5 R" D3 ~0 x( x7 V% G, d2 S9 H3 p
- NXOpen::Point3d p2(myCursor.X + vmx.Zx * 1000, myCursor.Y + vmx.Zy * 1000, myCursor.Z + vmx.Zz * 1000);
. a( b0 M' k$ |* Q y L/ m - NXOpen::Line *lineRay = m_wpart->Curves()->CreateLine(p1, p2);
# n( @% J3 ]; b' L+ K - lineRay->SetName("Ray");
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3 s, q- B+ z" W- // create the plane from the view to intersect with the ray
+ V7 Q( I n5 F3 S% o$ A - NXOpen::Plane *planeView = m_wpart->Planes()->CreatePlane(ptDefaultPlane, vecDefaultPlane, NXOpen::SmartObject::UpdateOptionWithinModeling);; z$ E* U; g" Q2 o
- planeView->SetVisibility(NXOpen::SmartObject::VisibilityOptionVisible);; d/ a" C+ i( p: [4 v
- planeView->SetName("ViewPlane");# y5 _1 {5 q) k& D
+ d* t$ g6 ~0 G* l; G4 s' X- // now create the intersection point5 ^8 N& b ^& z* X$ a% m
- NXOpen::Point *pntInterSect = m_wpart->Points()->CreatePoint(planeView, lineRay, NULL, NULL, NXOpen::SmartObject::UpdateOptionWithinModeling);0 _2 K# \% J7 X3 Z
- pntInterSect->SetVisibility(NXOpen::SmartObject::VisibilityOptionVisible);- U# s: l" T2 K8 o1 r8 R
- pntInterSect->SeTColor(10);
6 {1 O, O9 S) F8 }0 c( S n+ c - pntInterSect->SetName("Intersection");9 z2 v) q7 R6 ~8 j
- 5 \2 N- Y+ K5 d7 M3 [* C" N2 E* u+ [
- pos = pntInterSect->Coordinates();
8 ^+ _' M! P& }: s+ Z! ^ - print("\nPMI Position:", pos);( F2 V4 C+ n: w: z
$ m+ ?/ d; p; `7 c- // clean up - comment to see intermediate objects
# M+ D1 k- \5 o, Y- _3 L9 j" u - NXOpen::Session::UndoMarkId markDel = m_session->SetUndoMark(NXOpen::Session::MarkVisibilityVisible, "Delete");
. }+ T1 ^0 J. J; M# K - int nErrs1 = m_session->UpdateManager()->AddToDeleteList(pntInterSect);$ h' H3 ^ X& t% }2 V& b5 S
- int nErrs2 = m_session->UpdateManager()->AddToDeleteList(planeView);
8 I2 \! s8 |( X) \& h: Q) Y - int nErrs3 = m_session->UpdateManager()->AddToDeleteList(lineRay);1 K- k' K, b4 m2 w0 i0 Q
- int nErrs4 = m_session->UpdateManager()->DoUpdate(markDel);
Q2 w1 A* H2 w' G( K- z/ c - m_session->DeleteUndoMark(markDel, NULL);3 C$ h, ~& v' D) C: D/ F
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- return true;
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- return false;
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