# Get the current volume node rendered in the Red Yellow Green view
**URL:** https://discourse.slicer.org/t/get-the-current-volume-node-rendered-in-the-red-yellow-green-view/9190
**Category:** Development
**Tags:** dicom, python, volume
**Created:** [November 18, 2019, 1:08pm UTC](https://discourse.slicer.org/t/get-the-current-volume-node-rendered-in-the-red-yellow-green-view/9190 "2019-11-18T13:08:08Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@CreepyTrick](https://discourse.slicer.org/u/CreepyTrick)
#### Post date: [November 18, 2019, 1:08pm UTC](https://discourse.slicer.org/t/get-the-current-volume-node-rendered-in-the-red-yellow-green-view/9190/1 "2019-11-18T13:08:08Z")
Hello
I’m trying to get the current volume rendered in the RYG views (from a Dicom).
On the screen, i have 2 volume:
For now, i already got all the vtkMRMLScalarVolumeNode in a VtkCollection, but i cannot find a way to get witch one is visible on the RYG.
Since we cannot set visible multiple volumes, i try a basic solution:
```auto
#currentNode is a vtkMRMLScalarVolumeNode
currentNode.GetScalarVolumeDisplayNode().GetDisplayableNode().GetDisplayVisibility()
```
I expected this to return “1” for the volume rendered in the scene, 0 for all others, but it always return 1.
Does anyone have a solution ?
---
### Author:  [@Amine](https://discourse.slicer.org/u/Amine)
#### Post date: [November 18, 2019, 1:25pm UTC](https://discourse.slicer.org/t/get-the-current-volume-node-rendered-in-the-red-yellow-green-view/9190/2 "2019-11-18T13:25:21Z")
Hi, you can use this to set a volume as background
`slicer.util.setSliceViewerLayers(background=currentNode)`
Edit: i misread you want to get the displayed one
---
### Author:  [@CreepyTrick](https://discourse.slicer.org/u/CreepyTrick)
#### Post date: [November 18, 2019, 1:41pm UTC](https://discourse.slicer.org/t/get-the-current-volume-node-rendered-in-the-red-yellow-green-view/9190/3 "2019-11-18T13:41:15Z")
Hi,
This is not what i want
The result expected is something like (pseudo code)
`currentNodeRenderedInTheRYGViews = slicer.util.getFocusedVolume()`
or
```auto
for all scalarVolumeNode
if(node.isDisplayed)
return node
```
For now i just got the list of all scalarVolumes (red circle on the screen), but only one of them is displayed in these view, the one i want.
“Edit” Yes, that’s it 😉
---
### Author:  [@lassoan](https://discourse.slicer.org/u/lassoan)
#### Post date: [November 18, 2019, 2:25pm UTC](https://discourse.slicer.org/t/get-the-current-volume-node-rendered-in-the-red-yellow-green-view/9190/4 "2019-11-18T14:25:15Z")
See this [example in the script repository](https://www.slicer.org/wiki/Documentation/Nightly/ScriptRepository#Iterate_over_current_visible_slice_views.2C_and_set_foreground_and_background_images) for how to get/set foreground and background volume node in each slice view (you just need to replace Set…Volume… by Get…Volume…):
```python
layoutManager = slicer.app.layoutManager()
for sliceViewName in layoutManager.sliceViewNames():
compositeNode = layoutManager.sliceWidget(sliceViewName).sliceLogic().GetSliceCompositeNode()
volumeNodeID = compositeNode.GetBackgroundVolumeID()
print(sliceViewName + ": " +volumeNodeID)
```
---
### Author:  [@CreepyTrick](https://discourse.slicer.org/u/CreepyTrick)
#### Post date: [November 18, 2019, 2:39pm UTC](https://discourse.slicer.org/t/get-the-current-volume-node-rendered-in-the-red-yellow-green-view/9190/5 "2019-11-18T14:39:58Z")
That’s totally what i wanted to do !
I didn’t know that was called “background”, so i dont paid attention to it
Thanks for your help lassoan