Hello,

I'm currently working on a project in Cinema 4D Python. I'm trying to get the change in position and rotation when I make a softbody simulation. For example, when I try to let a object fall to the ground, I would like to get the new position and rotation at the end of the simulation. I tried the GetMg() function but it always returns the same value. Here is my code:

import c4d

doc: c4d.documents.BaseDocument

obj = c4d.BaseObject(c4d.Osphere)
obj[c4d.ID_BASEOBJECT_REL_POSITION] = c4d.Vector(0,100,0)
softbody_tag = c4d.BaseTag(c4d.Tcloth) 
c4d.CallButton(softbody_tag, c4d.CLOTH_PBD_STRUT_SOFTBODY_UPDATE_BUTTON)
obj.InsertTag(softbody_tag)
doc.InsertObject(obj)
c4d.EventAdd()

for frame in range(90): 
    doc.SetTime(c4d.BaseTime(frame,doc.GetFps())) 
    doc.ExecutePasses(None, True, True, True, 0)
    c4d.GeSyncMessage(c4d.EVMSG_TIMECHANGED) 
    print(obj.GetMg())

Could someone please guide me on how I can accurately determine the position and rotation changes in this scenario? Any help or suggestions would be greatly appreciated.

Thank you in advance!

Thank you very much! Now it is working.

Hi!
How can I use the Plane Cut Tool with Python in Cinema4D. I tried the following code but it always fails and returns false as a result. Also: is it possible to specify coordinates by using a vertex (e.g. c4d.Vector(0,0,0) to specify the cut location?

obj = doc.GetActiveObject()
 
settings = c4d.BaseContainer()  # Settings
settings[c4d.MDATA_KNIFEPLANE_MODE] = c4d.MDATA_KNIFEPLANE_MODE_REGION_A
settings[c4d.MDATA_KNIFEPLANE_PLANE_MODE] = c4d.MDATA_KNIFEPLANE_PLANE_MODE_LOCAL
settings[c4d.MDATA_KNIFEPLANE_PLANE] = c4d.MDATA_KNIFEPLANE_PLANE_XZ

result = c4d.utils.SendModelingCommand(
            command=c4d.ID_MODELING_KNIFE_PLANE,  # Use the ID of the modeling command for the cut tool
            list=[obj],
            mode=c4d.MODELINGCOMMANDMODE_POLYGONSELECTION, 
            bc=settings, 
            doc=doc,
        )