API 2 check node type in external Python module

[j.kaestle]

Hi,

I am writing an external Python module in which I want to check the type of the selected node.

'if node.isType(vrdTransformNode)' works fine in the VRED Script Editor.  When using the external module, I get the error that "vrdTransformNode" is not defined. What must I add to the script, to make object types known.

Thanks a lot

Jochen

[Christian_Garimberti]

Hi, try to use node.isType(vrKernelServices.vrdTransformNode)

or maybe just importing vrKernelServices before, but i never tried

Best

Chris

[j.kaestle]

Hi,
thank you fro the hint. 'node.isType(vrKernelServices.vrdTransformNode)' also doesn't work. I still get  the error message "NameError: name 'vrKernelServices' is not defined. Did you mean: 'vrMaterialService'?"

Regarding this discussion, it is not recommended to import the services:

Solved: Python Plugin: import vrKernelServices.vrUVService - Autodesk Community - VRED

My workaround now is to use

if (str(type(node)) == '<class \'vrKernelServices.vrdTransformNode\'>')

Best

Jochen

[Christian_Garimberti]

Hi, i made some easy test and it worked for me... in both the Script Editor and as a Script Plugin, without importing the vrKernelService.

i'm working in VRED PRo 2024.2.1. Which version are you using? Maybe older version it doesn't works.

I tried with this in the script editor

def testvrKernelServices2():
    node = vrScenegraphService.getSelectedNode()
    print(node.isType(vrKernelServices.vrdTransformNode))
    
testvrKernelServices2()

And this in a script plugin

from PySide6 import QtCore, QtGui, QtWidgets
    
class testDialog(QtWidgets.QDialog):
    def __init__(self, parent=None):
        super(testDialog, self).__init__(parent)
        self.setWindowTitle('Test')
        boxlayout = QtWidgets.QGridLayout(self)
        self.setLayout(boxlayout)
        
        self.TestButton = QtWidgets.QPushButton("Test")
        self.TestButton.clicked.connect(self.testvrKernelServices)
        boxlayout.addWidget(self.TestButton, 0, 1)
        
    def testvrKernelServices(self):
        node = vrScenegraphService.getSelectedNode()
        print(node.isType(vrKernelServices.vrdTransformNode))
        
myTestDialog = testDialog(VREDPluginWidget)
myTestDialog.show()

 Best

Chris

[j.kaestle]

Hi,

I work with VRED 2024.2

The whole thing is strange. If I start VRED and test it in an empty scene it is working.
If I load my scene, which loads the external modules, it fails:

I will analyze my modules and try to find the cause. If I find it, I will tell you.

Best

Jochen

[Christian_Garimberti]

Hi, maybe you found a bug...

If you put this code in the script editor of new scene just after the Vred Startup, it works.

If you load something new, or create a news cene, it does not work anymore.

def testvrKernelServices2():
    node = vrScenegraphService.getSelectedNode()
    print(node.isType(vrKernelServices.vrdTransformNode))
testvrKernelServices2()

Working with script plugins works everytime.

Maybe someone from Autodesk could give a check.

@__daniel.lincoln__ 

best

Chris

[Eduardt_AlbergEZ998]

Hi,

i also tested it and it is weird that its working after vred startup. You have to import the vrKernelServices or you just import the classes you need from the vrKernelServices, just like this:

from vrKernelServices import vrdTransformNode
    
def testvrKernelServices2():
    node = vrScenegraphService.getSelectedNode()
    print(node.isType(vrdTransformNode))
testvrKernelServices2()

But be careful. Most classes can be imported normally, classes with a service at the end, such as vrNodeService or vrMaterialService should not be imported in this way, as these are already instantiated in VRED and you replace this instance with the class if you import them in this way.