bool ViewProviderMeshNode::handleEvent(const SoEvent * const ev,Gui::View3DInventorViewer &Viewer) { if ( m_bEdit ) { unsetEdit(); std::vector<SbVec2f> clPoly = Viewer.getPickedPolygon(); if ( clPoly.size() < 3 ) return true; if ( clPoly.front() != clPoly.back() ) clPoly.push_back(clPoly.front()); // get the normal of the front clipping plane SbVec3f b,n; Viewer.getNearPlane(b, n); Base::Vector3f cPoint(b[0],b[1],b[2]), cNormal(n[0],n[1],n[2]); SoCamera* pCam = Viewer.getCamera(); SbViewVolume vol = pCam->getViewVolume (); // create a tool shape from these points std::vector<MeshCore::MeshGeomFacet> aFaces; bool ok = ViewProviderMesh::createToolMesh( clPoly, vol, cNormal, aFaces ); // Get the attached mesh property Mesh::PropertyMeshKernel& meshProp = ((Mesh::Feature*)pcObject)->Mesh; // Get the facet indices inside the tool mesh std::vector<unsigned long> indices; MeshCore::MeshKernel cToolMesh; cToolMesh = aFaces; MeshCore::MeshFacetGrid cGrid(meshProp.getValue().getKernel()); MeshCore::MeshAlgorithm cAlg(meshProp.getValue().getKernel()); cAlg.GetFacetsFromToolMesh(cToolMesh, cNormal, cGrid, indices); meshProp.deleteFacetIndices( indices ); // update open edge display if needed // if ( pcOpenEdge ) // { // showOpenEdges(false); // showOpenEdges(true); // } Viewer.render(); if ( !ok ) // note: the mouse grabbing needs to be released //QMessageBox::warning(Viewer.getWidget(),"Invalid polygon","The picked polygon seems to have self-overlappings.\n\nThis could lead to strange rersults."); Base::Console().Message("The picked polygon seems to have self-overlappings. This could lead to strange results."); } return false; }