Hi Mujassim, let's assume you would start with the lasso tool [1] instead of the livewire tool, which uses the same base class but seems to fit your needs even better. The base class EditableContourTool [2] sets up the state machine "EditableContourTool.xml" for the creation of the contour and connects most of the functions. The derived LassoTool class then only connects the MovePoint action in addition. But all of this interaction is for the creation of the contour, not for editing. In LassoTool::FinishTool() you will see, however, that another DataInteractor/StateMachine is associated with the created contour data node: ContourModelInteractor [3] with ContourModelModificationInteractor.xml as state machine. In this class you find the OnMovePoint() method which is called when moving a point of the contour. That's where you want to hook in to add your functionality. You can do this for example by subclassing ContourModelInteractor and overriding the OnMovePoint() method.
To understand/test the ContourModelInteractor in the MITK Workbench first, activate the Segmentation plugin, create a segmentation, select the Lasso tool from the 2D tools and remove the checkmark from "Auto-confirm contour". This is crucial. Start a contour with a double click, add points with single clicks and add the last point again with a double click. Now the editable contour should still be on the screen and you can test the ContourModelnteractor by moving an existing point of the contour for example. To start with such a contour right from the beginning I recommend to save the contour so you can simply open it later without having to use the segmentation plugin. The contour node from the lasso tool is invisible by default, though. To make it visible, open the preferences (Ctrl+P), click on Data Manager on the very top and set the checkmark for "Show helper objects". While the Lasso tool is active with an editable contour, you will see a "working contour node" node in the Data Manager now. You can right-click on it and "Save..." it to a .cnt file, that you can later open again. When you implement your subclass you can activate the interaction by calling either DataInteractor::SetDataNode() or DataNode::SetDataInteractor() on a contour node. A good starting point for that is probably your own plugin/view and to wire up a button to do so. Start best with the MITK-ProjectTemplate [4] where you could modify the Example View for your first prototype [5]. [1] https://docs.mitk.org/2024.12/classmitk_1_1LassoTool.html [2] https://docs.mitk.org/2024.12/classmitk_1_1EditableContourTool.html [3] https://docs.mitk.org/2024.12/classmitk_1_1ContourModelInteractor.html [4] https://github.com/MITK/MITK-ProjectTemplate/blob/master/README.md [5] https://github.com/MITK/MITK-ProjectTemplate/blob/master/Plugins/org.mitk.gui.qt.exampleplugin/src/internal/QmitkExampleView.cpp Best, Stefan ________________________________________ Von: Mujassim Jamal <mujassimjama...@gmail.com> Gesendet: Dienstag, 18. Februar 2025 13:41 An: Dinkelacker, Stefan Cc: mitk-users@lists.sourceforge.net Betreff: Re: [Extern] - [mitk-users] Contour Editing in MITK Hi Stefan, I followed your instructions and explored the LiveWire tool, which helped me understand how it leverages ContourModelLiveWireInteractor for various interactions. I also reviewed its corresponding state machine and configuration XML files, which were quite easy to follow. Next, I traced the inheritance hierarchy of ContourModelLiveWireInteractor up to DataInteractor, where each class has a ConnectActionsAndFunctions function responsible for linking state machine actions to interactor functions (as you mentioned in an earlier response). The description of the DataInteractor class also states that new interactor classes can be derived from it. >From this point, what would you recommend as my next step? Should I proceed >with creating a new interactor and its associated XML files, or is there >anything else I should refer to before diving into the implementation? Looking forward to your guidance. Best, Mujassim On Tue, 11 Feb 2025 at 15:33, Dinkelacker, Stefan <s.dinkelac...@dkfz-heidelberg.de<mailto:s.dinkelac...@dkfz-heidelberg.de>> wrote: Hi Mujassim, I think at this stage an example-based exploration is probably the most efficient way of going forward. For the Live Wire tool, see [1] for example and move up the inheritance until you find the code using an Interactor. An Interactor is connected to a state machine and a separate config for that statemachine. Both are written as .xml files. The Interactor code connects actions and conditions of a statemachine to its methods. Best, Stefan [1] https://docs.mitk.org/2024.12/classmitk_1_1LiveWireTool2D.html ________________________________________ Von: Mujassim Jamal <mujassimjama...@gmail.com<mailto:mujassimjama...@gmail.com>> Gesendet: Dienstag, 11. Februar 2025 04:46 An: Dinkelacker, Stefan Cc: mitk-users@lists.sourceforge.net<mailto:mitk-users@lists.sourceforge.net> Betreff: Re: [Extern] - [mitk-users] Contour Editing in MITK Hi, Yes, I previously built MITK v2023.12, but I encountered several compiler errors related to ITK (conversion type errors) and POCO (OpenSSL version mismatch). Thank you for suggesting these four tools. I have explored all of them and found that the Draw Polygon and LiveWire tools closely match my use case, though I will still need to make significant customizations. I plan to refer to the code of these two tools to get an initial understanding of point adding, dragging, picking, etc. I would appreciate it if you could share any resources on developing a custom interactor in MITK. Best, Mujassim On Wed, 5 Feb 2025 at 17:28, Dinkelacker, Stefan <s.dinkelac...@dkfz-heidelberg.de<mailto:s.dinkelac...@dkfz-heidelberg.de><mailto:s.dinkelac...@dkfz-heidelberg.de<mailto:s.dinkelac...@dkfz-heidelberg.de>>> wrote: Hi and welcome to MITK! The last version of MITK that supported Qt 5 was MITK v2023.12, as far as I know. Starting with later versions, Qt 6.6+ is a strict requirement. To get started, I recommend running the MitkWorkbench application and exploring the contour interaction functionalities available in two different plugins: - Measurement [1]: The Draw Polygon and Draw Subdivision Polygon tools demonstrate how contours can be interacted with. - Segmentation [2]: The Lasso and LiveWire tools are both based on contour interaction. MITK provides at least two approaches for working with contours and interacting with them. However, you will need to write some code—for example, handling a Modified event to map contour changes back to a 3D model (referred to as a Surface in MITK). Additionally, MITK's current interactors only operate on individual contour vertices. If you aim to implement an approach similar to what you showed in your video—where multiple neighboring vertices of a contour are modified simultaneously—you will need to develop a custom interactor. While this is certainly possible, it is not the simplest task for a first MITK project. Best, Stefan [1] https://docs.mitk.org/2024.12/org_mitk_views_measurement.html [2] https://docs.mitk.org/2024.12/org_mitk_views_segmentation.html#org_mitk_views_segmentationlivewiretool ________________________________________ Von: Mujassim Jamal <mujassimjama...@gmail.com<mailto:mujassimjama...@gmail.com><mailto:mujassimjama...@gmail.com<mailto:mujassimjama...@gmail.com>>> Gesendet: Mittwoch, 5. Februar 2025 11:27 An: mitk-users@lists.sourceforge.net<mailto:mitk-users@lists.sourceforge.net><mailto:mitk-users@lists.sourceforge.net<mailto:mitk-users@lists.sourceforge.net>> Betreff: [Extern] - [mitk-users] Contour Editing in MITK Hi, First of all, I am new to using MITK. I am working with Qt 5.15.2, but I couldn't find an MITK version compatible with this Qt version. Therefore, I built the latest version of MITK (v2024.12). My question is: Can I use the MITK toolkit to create a contour editing feature such that, after projecting a 3D model as a contour onto the 2D segmentation, I can pick and drag the points on the contour in 2D and see the effect directly on the 3D model? I found that MITK provides various contour-related classes, but I am unsure whether they can be used for my specific use case. I am attaching a Google Drive link that contains a video showcasing what I want to achieve using MITK. Video: https://drive.google.com/file/d/1Wu3UJmQQeewlR0Thvx7TPP0iYLEmfu1J/view?usp=sharing Thank you. _______________________________________________ mitk-users mailing list mitk-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mitk-users
