if (aCtx->Clipping().IsClippingOrCappingOn())
{
const Graphic3d_BndBox4f& aBBox = BoundingBox();
- if ((!myTrsfPers.IsNull() && myTrsfPers->IsTrihedronOr2d())
- || (!myClipPlanes.IsNull() && myClipPlanes->ToOverrideGlobal()))
+ if (!myClipPlanes.IsNull()
+ && myClipPlanes->ToOverrideGlobal())
{
aCtx->ChangeClipping().DisableGlobal (aCtx);
hasDisabled = aCtx->Clipping().HasDisabled();
}
+ else if (!myTrsfPers.IsNull())
+ {
+ if (myTrsfPers->IsZoomOrRotate())
+ {
+ // Zoom/rotate persistence object lives in two worlds at the same time.
+ // Global clipping planes can not be trivially applied without being converted
+ // into local space of transformation persistence object.
+ // As more simple alternative - just clip entire object by its anchor point defined in the world space.
+ const gp_Pnt anAnchor = myTrsfPers->AnchorPoint();
+ for (OpenGl_ClippingIterator aPlaneIt (aCtx->Clipping()); aPlaneIt.More() && aPlaneIt.IsGlobal(); aPlaneIt.Next())
+ {
+ const Handle(Graphic3d_ClipPlane)& aPlane = aPlaneIt.Value();
+ if (!aPlane->IsOn())
+ {
+ continue;
+ }
+
+ // check for clipping
+ const Graphic3d_Vec4d& aPlaneEquation = aPlane->GetEquation();
+ const Graphic3d_Vec4d aCheckPnt (anAnchor.X(), anAnchor.Y(), anAnchor.Z(), 1.0);
+ if (aPlaneEquation.Dot (aCheckPnt) < 0.0) // vertex is outside the half-space
+ {
+ isClipped = true;
+ break;
+ }
+ }
+ }
+
+ aCtx->ChangeClipping().DisableGlobal (aCtx);
+ hasDisabled = aCtx->Clipping().HasDisabled();
+ }
// Set of clipping planes that do not intersect the structure,
// and thus can be disabled to improve rendering performance
= mySelectingVolumes[myActiveSelectionType / 2]->ScaleAndTransform (theScaleFactor, theTrsf);
aMgr.myToAllowOverlap = myToAllowOverlap;
aMgr.mySelectingVolumes[myActiveSelectionType / 2]->SetBuilder (theBuilder);
+ aMgr.myViewClipPlanes = myViewClipPlanes;
return aMgr;
}
//=======================================================================
void SelectMgr_SelectingVolumeManager::SetViewClipping (const Handle(Graphic3d_SequenceOfHClipPlane)& thePlanes)
{
+ myViewClipPlanes = thePlanes;
if (myActiveSelectionType != Point)
return;
Standard_EXPORT virtual Standard_Boolean IsOverlapAllowed() const Standard_OVERRIDE;
+ //! Return view clipping planes.
+ const Handle(Graphic3d_SequenceOfHClipPlane)& ViewClipping() const { return myViewClipPlanes; }
+
//! Valid for point selection only!
//! Computes depth range for global (defined for the whole view) clipping planes.
Standard_EXPORT void SetViewClipping (const Handle(Graphic3d_SequenceOfHClipPlane)& thePlanes);
private:
enum { Frustum, FrustumSet, VolumeTypesNb }; //!< Defines the amount of available selecting volumes
- Handle(SelectMgr_BaseFrustum) mySelectingVolumes[VolumeTypesNb]; //!< Array of selecting volumes
- Standard_Boolean myToAllowOverlap; //!< Defines if partially overlapped entities will me detected or not
+ Handle(SelectMgr_BaseFrustum) mySelectingVolumes[VolumeTypesNb]; //!< Array of selecting volumes
+ Handle(Graphic3d_SequenceOfHClipPlane) myViewClipPlanes; //!< view clipping planes
+ Standard_Boolean myToAllowOverlap; //!< Defines if partially overlapped entities will me detected or not
};
-#endif
\ No newline at end of file
+#endif
if (!anOwner.IsNull())
{
aSelectable = anOwner->Selectable();
- if ((!aSelectable->TransformPersistence().IsNull() && aSelectable->TransformPersistence()->IsTrihedronOr2d())
- || (!aSelectable->ClipPlanes().IsNull() && aSelectable->ClipPlanes()->ToOverrideGlobal()))
+ if (!aSelectable->ClipPlanes().IsNull()
+ && aSelectable->ClipPlanes()->ToOverrideGlobal())
{
theMgr.SetViewClippingEnabled (Standard_False);
toRestoresViewClipEnabled = Standard_True;
}
+ else if (!aSelectable->TransformPersistence().IsNull())
+ {
+ if (aSelectable->TransformPersistence()->IsZoomOrRotate()
+ && !theMgr.ViewClipping().IsNull())
+ {
+ // Zoom/rotate persistence object lives in two worlds at the same time.
+ // Global clipping planes can not be trivially applied without being converted
+ // into local space of transformation persistence object.
+ // As more simple alternative - just clip entire object by its anchor point defined in the world space.
+ const Handle(Graphic3d_SequenceOfHClipPlane)& aViewPlanes = theMgr.ViewClipping();
+
+ const gp_Pnt anAnchor = aSelectable->TransformPersistence()->AnchorPoint();
+ for (Graphic3d_SequenceOfHClipPlane::Iterator aPlaneIt (*aViewPlanes); aPlaneIt.More(); aPlaneIt.Next())
+ {
+ const Handle(Graphic3d_ClipPlane)& aPlane = aPlaneIt.Value();
+ if (!aPlane->IsOn())
+ {
+ continue;
+ }
+
+ const Graphic3d_Vec4d& aPlaneEquation = aPlane->GetEquation();
+ const Graphic3d_Vec4d aCheckPnt (anAnchor.X(), anAnchor.Y(), anAnchor.Z(), 1.0);
+ if (aPlaneEquation.Dot (aCheckPnt) < 0.0) // vertex is outside the half-space
+ {
+ return;
+ }
+ }
+ }
+
+ theMgr.SetViewClippingEnabled (Standard_False);
+ toRestoresViewClipEnabled = Standard_True;
+ }
}
SelectBasics_PickResult aPickResult;
--- /dev/null
+puts "==========="
+puts "OCC27945"
+puts "Visualization - handle correctly view clipping planes within zoom-persistent objects"
+puts "==========="
+puts ""
+
+pload MODELING VISUALIZATION
+
+box b 3 1 2
+box z000 50 40 30
+box z010 50 40 30
+box z002 50 40 30
+box z012 50 40 30
+box z300 50 40 30
+box z302 50 40 30
+box z310 50 40 30
+box z312 50 40 30
+box r1 0.2 0.1 0.1
+box r2 0.2 0.1 0.1
+
+vclear
+vinit View1
+vaxo
+vzbufftrihedron
+vdisplay -dispMode 1 b
+
+vdisplay -noupdate -dispMode 1 -trsfPers zoom -trsfPersPos 0 0 0 z000
+vsetlocation z000 -25 -20 -15
+vdrawtext t000 "000\n" -pos 0 0 0 -color RED -halign right
+
+vdisplay -noupdate -dispMode 1 -trsfPers zoom -trsfPersPos 0 1 0 z010
+vsetlocation z010 -25 -20 -15
+vdrawtext t010 "010\n" -pos 0 1 0 -color RED -halign right
+
+vdisplay -noupdate -dispMode 1 -trsfPers zoom -trsfPersPos 0 0 2 z002
+vsetlocation z002 -25 -20 -15
+vdrawtext t002 "002\n" -pos 0 0 2 -color RED -halign right
+
+vdisplay -noupdate -dispMode 1 -trsfPers zoom -trsfPersPos 0 1 2 z012
+vsetlocation z012 -25 -20 -15
+vdrawtext t012 "012\n" -pos 0 1 2 -color RED -halign right
+
+vdisplay -noupdate -dispMode 1 -trsfPers zoom -trsfPersPos 3 0 0 z300
+vsetlocation z300 -25 -20 -15
+vdrawtext t300 "300\n" -pos 3 0 0 -color RED -halign left
+
+vdisplay -noupdate -dispMode 1 -trsfPers zoom -trsfPersPos 3 0 2 z302
+vsetlocation z302 -25 -20 -15
+vdrawtext t302 "302\n" -pos 3 0 2 -color RED -halign left
+
+vdisplay -noupdate -dispMode 1 -trsfPers zoom -trsfPersPos 3 1 0 z310
+vsetlocation z310 -25 -20 -15
+vdrawtext t310 "310\n" -pos 3 1 0 -color RED -halign left
+
+vdisplay -noupdate -dispMode 1 -trsfPers zoom -trsfPersPos 3 1 2 z312
+vsetlocation z312 -25 -20 -15
+vdrawtext t312 "312\n" -pos 3 1 2 -color RED -halign left
+
+vdisplay -noupdate -dispMode 1 -trsfPers rotate -trsfPersPos -1 1 2 r1
+vdisplay -noupdate -dispMode 1 -trsfPers rotate -trsfPersPos 4 1 2 r2
+
+vfit
+vrotate 0.1 0 0
+
+vclipplane pln -equation -1 0 0 2 -set
+
+set aColor1 [vreadpixel 320 160 rgb name]
+set aColor2 [vreadpixel 80 250 rgb name]
+if { "$aColor1" != "BLACK" } { puts "Error: zoom-persistent object is not clipped" }
+if { "$aColor2" != "GOLDENROD3" } { puts "Error: zoom-persistent object is clipped" }
+
+vdump $imagedir/${casename}.png
projects / occt-copy.git / commitdiff