Hi, Planar Figures can be a bit tricky when constructing them programmatically. See the Planar Figure tests for examples [1]. The thing is (which I assume you didn't do) that you use the PlaceFigure() method for the first control point and AddControlPoint() for the subsequent control points only. You also do not need to add an interactor, if you do not want the user to modify the planar figure. BTW you can also query if a planar figure is in its "placed" state by calling IsPlaced().
Hope that helps, Stefan [1] https://github.com/MITK/MITK/tree/master/Modules/PlanarFigure/test -----Original Message----- From: Daphné Wallach [mailto:daphne.wall...@hrv-simulation.com] Sent: Donnerstag, 16. März 2017 12:08 To: mitk-users@lists.sourceforge.net Subject: [mitk-users] Displaying a planar figure created from a set of 3D points Dear MITK users, I am developping an application using MITK as a library, and I am currently trying to load a planar figure from its 3D control points. However, I can only manage to display the figure when I start interacting with it. Otherwise, the figure is not displayed. Here is the workflow I am using: - create a new figure - create a new node containing the figure, select it, and add to the datastorage - set a planar figure interactor to the node - set the geometry of the figure: the geometry is computed from a dicom image stored in the datastorage. The planar figure is placed on an axial slice of this image. - set the points to the figure - finalize the interaction - update all viewers When I comment the lines in the "Finalize interaction" part, the figure appears when I click on the viewer at the slice where the figure is (and a new point is added at the click). I have struggled with this issue for several days now, and I would grealty appreciate any help! Best regards, Daphné Below is a snippet of my code: mitk::PlanarFigure::Pointer figure = mitk::PlanarBezierCurve::New(); // Create node containing the curve, select it and add it to datastorage mitk::DataNode::Pointer newNode = mitk::DataNode::New(); newNode->SetData(figure); newNode->SetSelected(true); if (!_ds->Exists(newNode)) { _ds->Add(newNode); } // Set new interactor mitk::PlanarFigureInteractor::Pointer interactor = dynamic_cast<mitk::PlanarFigureInteractor*>(newNode->GetDataInteractor().GetPointer()); if (interactor.IsNull()) { interactor = mitk::PlanarFigureInteractor::New(); auto planarFigureModule = us::ModuleRegistry::GetModule("MitkPlanarFigure"); interactor->LoadStateMachine("PlanarFigureInteraction.xml", planarFigureModule); interactor->SetEventConfig("PlanarFigureConfig.xml", planarFigureModule); } interactor->SetDataNode(newNode); // Set figure plane geometry mitk::PlaneGeometry::Pointer curvePlane = mitk::PlaneGeometry::New(); mitk::DataNode::Pointer originalImageNode = _ds->GetNamedNode("originalImage"); // This node contains a dicom image on which we want to draw the planar figure mitk::BaseGeometry* originalImageGeometry = originalImageNode->GetData()->GetGeometry(); itk::Index<3> idx; originalImageGeometry->WorldToIndex(curve.points[0], idx); // the "curve" variable contains the 3D control points mitk::ScalarType planeZPosition = idx[2]; curvePlane->InitializeStandardPlane(originalImageGeometry, mitk::PlaneGeometry::Axial, planeZPosition); figure->SetPlaneGeometry(curvePlane); //Set points to figure for (int i = 0; i < curve.points.size(); i++) { mitk::Point2D indexPoint2d; for (int dim = 0; dim < 2; dim++) { indexPoint2d[dim] = (curve.points[i][dim] - originalImageGeometry->GetOrigin()[dim]); } if (i == 0) { figure->InvokeEvent(mitk::StartPlacementPlanarFigureEvent()); figure->PlaceFigure(indexPoint2d); newNode->SetBoolProperty("PlanarFigureInitializedWindow", true); } else { figure->SetControlPoint(i, indexPoint2d, true); } } figure->EvaluateFeatures(); figure->DeselectControlPoint(); // Finalize interaction: when these six lines are commented, the figure is displayed when the user clicks on the slice where the figure is placed figure->Modified(); figure->SetProperty("initiallyplaced", mitk::BoolProperty::New(true)); newNode->SetBoolProperty("planarfigure.drawcontrolpoints", true); newNode->Modified(); figure->InvokeEvent(mitk::EndPlacementPlanarFigureEvent()); figure->InvokeEvent(mitk::EndInteractionPlanarFigureEvent()); mitk::RenderingManager::GetInstance()->RequestUpdateAll(); -- Daphné Wallach Ingénieur de recherche http://www.hrv-simulation.com ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ mitk-users mailing list mitk-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mitk-users ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ mitk-users mailing list mitk-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mitk-users
