Hello, I am trying to implement a mouse interaction wherein the user clicks on a model from the 3D viewer and the model which was clicked is made available so that it can be modified in some way (such as colour change, etc.). I was able to find a similar example here from the VTK examples page but …

We plan to add a feature like this within a couple of months, but until then you can use something like what is implemented here .

[image] lassoan: couple of months, but un Hi Andras, Is the modelnode selection function available. I have a model and selected nodes with using fiducials. Is there a way to left mouse click the fiducial and save that fiducial coordinates. For example if the user has model and selected node…

This example could be a starting point: https://slicer.readthedocs.io/en/latest/developer_guide/script_repository.html#get-a-notification-if-a-markup-control-point-position-is-modified I’d probably try to use the PointEndInteractionEvent event to get notified about the click, and by getting the ac…

[image] cpinter: point index you know which one was clicked. Hi, I am having trouble with connecting mouse click. How can I attach the mouse click event with this method or may be I am understanding it wrong. in main process code I have markupsNode = slicer.util.getNode(inputFiducial.GetI…

You didn’t say anything about what the problem was, but from the code you pasted (which is identical to what we can see in the script repository) the problem I see is that you added an argument self to the onMarkupEndInteraction function, which won’t work outside of a class. Of course I can make ass…

[image] Saima: aving trouble with connecting mouse c Hi Pinter, I have the markup control points already defined for the model nodes. I want a program where user can click on the markup point and can get the node number along with the x,y,z coordinates. regards, Saima

Hi, I got the control point I am clicking but why it is printing it multiple times. here are the lines of code. In the main def process: markupsNode = slicer.util.getNode(inputFiducial.GetID()) markupsNode.AddObserver(slicer.vtkMRMLMarkupsNode.PointEndInteractionEvent, self.onMarkupEndInteractio…

Hi, I am getting the index and the control point position with the following lines. def onMarkupEndInteraction(self, caller, event): markupsNode = caller markupsNodeindex = int(caller.GetAttribute(‘Markups.MovingMarkupIndex’)) pos = [0,0,0] markupsNode.GetNthControlPointPosition(markupsNodeind…

If I understand correctly you successfully solved the problem in this topic. Correct? Your next question is unrelated, but as a quick advice, you can use the Reload button on the top of your module UI, or add some code to your .slicerrc.py so that Slicer sets up your scene correctly before continui…

Select vtkMRMLModelNode on mouse click

Development

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Is there any callback for the mouse click when adding a new markup? Development	2	380	October 14, 2022
How to get the clicked markup node in the 3D view? Support python , markups	4	115	May 7, 2026
Get ROINode Information by clicking Development python	8	953	November 4, 2019
Interactively adding control point with a given label Development python , markups-fiducials	35	2578	August 8, 2023
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Select vtkMRMLModelNode on mouse click

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