How to modify python tags as generators first?

treezw

import c4d

def main():
    
    cloner = c4d.BaseObject(c4d.Omgcloner)
    python = c4d.BaseTag(c4d.Tpython)

    cloner.InsertTag(python)
    doc.InsertObject(cloner)

    c4d.EventAdd()

if __name__ == '__main__':
    main()

ferdinand

Hello @treezw,

Welcome to the Maxon developers forum and its community, it is great to have you with us!

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It is strongly recommended to read the first two topics carefully, especially the section Support Procedures: Asking Questions.

About your First Question

Please have a look at our forum guidelines. You must accompany your postings by a reasonable description of what you want. We cannot start deciphering screenshots. I understand that language can be a barrier but your title does not offer much meaning either.

I can read here between the lines but we expect you to provide a meaningful problem description in future postings. I assumed that your question is 'how to set the priority value of a Python programming tag?' You must use the parameter access syntax myNode[ID_SOME_PARAM] = value. To discover parameter values, you can use parameter drag and drop in the console. A little hurdle is here the data type of the parameter you want to write, c4d.PriorityData, which is a bit of an oddball.

PS: You also posted in the wrong forum, this must go into Cinema 4D SDK since this is a question about this SDK. I have moved your topic.

Cheers,
Ferdinand

import c4d
from mxutils import CheckType

doc: c4d.documents.BaseDocument # The active document.
op: c4d.BaseObject | None # The active object, can be `None`.

def main():
    """
    """
    # Allocate a cloner. Object allocation can fail in the C++ backend when you run out of memory.
    # The constructor will return `None` in that case. One way to handle this is to ensure with
    # a `CheckType` call that the object is not `None`.
    cloner: c4d.BaseObject = CheckType(c4d.BaseObject(c4d.Omgcloner))

    # Create a Python tag, insert it into the cloner and check for success in one line.
    tag: c4d.BaseTag = CheckType(cloner.MakeTag(c4d.Tpython))

    # Get the priority data of the Python tag, change its value and write it back. Priority data
    # bundle up three values, the mode, the priority and the camera dependency which are all written
    # with the method `SetPriorityValue`.
    priority: c4d.PriorityData = tag[c4d.EXPRESSION_PRIORITY]
    priority.SetPriorityValue(c4d.PRIORITYVALUE_MODE, c4d.CYCLE_GENERATORS)
    priority.SetPriorityValue(c4d.PRIORITYVALUE_PRIORITY, -100)
    tag[c4d.EXPRESSION_PRIORITY] = priority

    # Insert the cloner into the document and invoke an update.
    doc.InsertObject(cloner)
    c4d.EventAdd()

if __name__ == '__main__':
    main()