int myIsVisible;
};
+//=================================================================================
+// used in SMESHGUI::restoreVisualParameters() to avoid
+// declaration of OrientedPlane outside of SMESHGUI_ClippingDlg.cxx
+//=================================================================================
+void SMESHGUI_ClippingDlg::AddPlane (SMESH_Actor* theActor,
+ SVTK_ViewWindow* theViewWindow,
+ SMESH::Orientation theOrientation,
+ double theDistance,
+ vtkFloatingPointType theAngle[2])
+{
+ OrientedPlane* aPlane = OrientedPlane::New(theViewWindow);
+
+ aPlane->myAngle[0] = theAngle[0];
+ aPlane->myAngle[1] = theAngle[1];
+
+ aPlane->SetOrientation(theOrientation);
+ aPlane->SetDistance(theDistance);
+
+ vtkFloatingPointType aNormal[3];
+ vtkFloatingPointType aDir[2][3] = {{0, 0, 0}, {0, 0, 0}};
+ {
+ static double aCoeff = vtkMath::Pi()/180.0;
+
+ vtkFloatingPointType anU[2] = {cos(aCoeff * theAngle[0]), cos(aCoeff * theAngle[1])};
+ vtkFloatingPointType aV[2] = {sqrt(1.0 - anU[0]*anU[0]), sqrt(1.0 - anU[1]*anU[1])};
+ aV[0] = theAngle[0] > 0? aV[0]: -aV[0];
+ aV[1] = theAngle[1] > 0? aV[1]: -aV[1];
+
+ switch (theOrientation) {
+ case SMESH::XY:
+ aDir[0][1] = anU[0];
+ aDir[0][2] = aV[0];
+
+ aDir[1][0] = anU[1];
+ aDir[1][2] = aV[1];
+
+ break;
+ case SMESH::YZ:
+ aDir[0][2] = anU[0];
+ aDir[0][0] = aV[0];
+
+ aDir[1][1] = anU[1];
+ aDir[1][0] = aV[1];
+
+ break;
+ case SMESH::ZX:
+ aDir[0][0] = anU[0];
+ aDir[0][1] = aV[0];
+
+ aDir[1][2] = anU[1];
+ aDir[1][1] = aV[1];
+
+ break;
+ }
+
+ vtkMath::Cross(aDir[1],aDir[0],aNormal);
+ vtkMath::Normalize(aNormal);
+ vtkMath::Cross(aNormal,aDir[1],aDir[0]);
+ }
+
+ // ???
+ theActor->SetPlaneParam(aNormal, theDistance, aPlane);
+
+ vtkDataSet* aDataSet = theActor->GetInput();
+ vtkFloatingPointType *aPnt = aDataSet->GetCenter();
+
+ vtkFloatingPointType* anOrigin = aPlane->GetOrigin();
+ vtkFloatingPointType aDel = aDataSet->GetLength()/2.0;
+
+ vtkFloatingPointType aDelta[2][3] = {{aDir[0][0]*aDel, aDir[0][1]*aDel, aDir[0][2]*aDel},
+ {aDir[1][0]*aDel, aDir[1][1]*aDel, aDir[1][2]*aDel}};
+ vtkFloatingPointType aParam, aPnt0[3], aPnt1[3], aPnt2[3];
+
+ vtkFloatingPointType aPnt01[3] = {aPnt[0] - aDelta[0][0] - aDelta[1][0],
+ aPnt[1] - aDelta[0][1] - aDelta[1][1],
+ aPnt[2] - aDelta[0][2] - aDelta[1][2]};
+ vtkFloatingPointType aPnt02[3] = {aPnt01[0] + aNormal[0],
+ aPnt01[1] + aNormal[1],
+ aPnt01[2] + aNormal[2]};
+ vtkPlane::IntersectWithLine(aPnt01,aPnt02,aNormal,anOrigin,aParam,aPnt0);
+
+ vtkFloatingPointType aPnt11[3] = {aPnt[0] - aDelta[0][0] + aDelta[1][0],
+ aPnt[1] - aDelta[0][1] + aDelta[1][1],
+ aPnt[2] - aDelta[0][2] + aDelta[1][2]};
+ vtkFloatingPointType aPnt12[3] = {aPnt11[0] + aNormal[0],
+ aPnt11[1] + aNormal[1],
+ aPnt11[2] + aNormal[2]};
+ vtkPlane::IntersectWithLine(aPnt11,aPnt12,aNormal,anOrigin,aParam,aPnt1);
+
+ vtkFloatingPointType aPnt21[3] = {aPnt[0] + aDelta[0][0] - aDelta[1][0],
+ aPnt[1] + aDelta[0][1] - aDelta[1][1],
+ aPnt[2] + aDelta[0][2] - aDelta[1][2]};
+ vtkFloatingPointType aPnt22[3] = {aPnt21[0] + aNormal[0],
+ aPnt21[1] + aNormal[1],
+ aPnt21[2] + aNormal[2]};
+ vtkPlane::IntersectWithLine(aPnt21,aPnt22,aNormal,anOrigin,aParam,aPnt2);
+
+ vtkPlaneSource* aPlaneSource = aPlane->myPlaneSource;
+ aPlaneSource->SetNormal(aNormal[0],aNormal[1],aNormal[2]);
+ aPlaneSource->SetOrigin(aPnt0[0],aPnt0[1],aPnt0[2]);
+ aPlaneSource->SetPoint1(aPnt1[0],aPnt1[1],aPnt1[2]);
+ aPlaneSource->SetPoint2(aPnt2[0],aPnt2[1],aPnt2[2]);
+
+ theActor->AddClippingPlane(aPlane);
+ aPlane->Delete();
+}
+
+//=================================================================================
+// used in SMESHGUI::restoreVisualParameters() to avoid
+// declaration of OrientedPlane outside of SMESHGUI_ClippingDlg.cxx
+//=================================================================================
+void SMESHGUI_ClippingDlg::GetPlaneParam (SMESH_Actor* theActor,
+ int thePlaneIndex,
+ SMESH::Orientation& theOrientation,
+ double& theDistance,
+ vtkFloatingPointType* theAngle)
+{
+ if (vtkPlane* aPln = theActor->GetClippingPlane(thePlaneIndex)) {
+ if (OrientedPlane* aPlane = OrientedPlane::SafeDownCast(aPln)) {
+ theOrientation = aPlane->GetOrientation();
+ theDistance = aPlane->GetDistance();
+ theAngle[0] = aPlane->myAngle[0];
+ theAngle[1] = aPlane->myAngle[1];
+ }
+ }
+}
+
//=================================================================================
// class : SMESHGUI_ClippingDlg()
// purpose :
