Move an object in hierarchy

[Rage]

Hi everyone,

In the script I'm writing I need to delete an object with some children, without deleting the children. So, I have to "move" the children one step up of the hierarchy, before deleting the parent. I went through the documentation but haven't found any method to do that (to move an object in its hierarchy). Any suggestion?

[mp5gosu]

Hi, you have to write an own routine for that. I was writing this one a while ago:

/**
 * @brief Moves all children of srcObj to tgtObj. Adds Undos.
 * @param srcObj The source object
 * @param tgtObj The target object
 */
inline void g_MoveChildren(BaseObject* srcObj, BaseObject* tgtObj)
{
	if (!srcObj)
		return;

	auto doc = srcObj->GetDocument();
	if (!doc)
		return;

	auto child = srcObj->GetDown();

	while (child)
	{
		const auto temp = child->GetNext();
		doc->AddUndo(UNDOTYPE::CHANGE, child);
		child->Remove();
		child->InsertUnderLast(tgtObj);
		child = temp;
	}
}

For further information about hierarchy manipulation, see https://developers.maxon.net/docs/cpp/2023_2/page_manual_gelistnode.html#page_manual_gelistnode_lists_edit

[WickedP]

Hi Rage,

you could try CallCommand() with id 1019951 - calling this should delete all selected objects without deleting their children. Might also do what you're after?

WP.

[a_block]

Hi,

both answers already provide valid solutions. Nice.

@Rage: Please also consider to use the tagging system (see Read Before Posting) and the Question and Answer feature (see Q&A New Functionality). Especially the tags can help, like for example in this case @mp5gosu would probably have provided you with Python code, if the respective tag was set.
Besides setting tags and changing into a question, I have also moved this thread into the Cinema 4D Development category.

And then I want to add a few links to Python docs:
GeListNode
CallCommand()

Cheers,
Andreas