Show or Hide Object in Viewport

chuanzhen

Hi,
I encountered some issues when importing documents and performing hide and display object.

this is an example c4d file to import --> import.c4d

this is an example script code:


import c4d

class MyDialog (c4d.gui.GeDialog):

    def CreateLayout(self) -> bool:

        self.GroupBorderSpace(5, 5, 5, 5)
        self.GroupSpace(5, 5)
        self.AddButton(1000, c4d.BFH_SCALEFIT, name = "import")
        self.AddButton(1001, c4d.BFH_SCALEFIT, name = "show")
        self.AddButton(1002, c4d.BFH_SCALEFIT, name = "hide")
        return True

    def Command(self, id, msg):
        if id == 1000:
            file_path = c4d.storage.LoadDialog()
            c4d.documents.MergeDocument(doc,file_path,c4d.SCENEFILTER_OBJECTS|c4d.SCENEFILTER_MATERIALS)
            for obj in doc.GetObjects():
                obj.ChangeNBit(c4d.NBIT_EHIDE,c4d.NBITCONTROL_SET)
            c4d.EventAdd()
            return True
        if id == 1001:
            for obj in doc.GetObjects():
                obj.ChangeNBit(c4d.NBIT_EHIDE,c4d.NBITCONTROL_CLEAR)
            c4d.EventAdd()
            c4d.DrawViews(c4d.DRAWFLAGS_FORCEFULLREDRAW)
            return True
        if id == 1002:
            for obj in doc.GetObjects():
                obj.ChangeNBit(c4d.NBIT_EHIDE,c4d.NBITCONTROL_SET)
            c4d.EventAdd()
            return True
        return True


if __name__ == "__main__":
    dlg = MyDialog()
    dlg.Open(c4d.DLG_TYPE_ASYNC, 0, -1, -1, 200, 200)

ui:

Step 1: Use "import" to merge a document into the current document, and then hide the imported object

Step 2: Use "show" to restore the display of the object, but it will not refresh the display. Only by using the "Redraw" command can the display be refreshed

Why c4d.EventAdd() and c4d.DrawView() doesn't work, did I miss something?

It seems to only occur in the document imported for the first time, and when the "show" or "hide" command is used again, it works normally.
Thanks for any help!

gheyret

Hi @chuanzhen ,
This is a Bug and it's already reported, you can find more info in this thread.

chuanzhen

@gheyret Thanks for your help!
i use "c4d.CallCommand(12147) # Redraw" to replace c4d.EventAdd() or c4d.Redraw(), it also work!

change code:

        if id == 1001:
            for obj in doc.GetObjects():
                obj.ChangeNBit(c4d.NBIT_EHIDE,c4d.NBITCONTROL_CLEAR)
            c4d.CallCommand(12147) # Redraw
            return True

ferdinand

Sorry, I am rotating on the spot right now, did not yet get to answering here. @gheyret is right, there is still a bug, will give @m_adam a note on Monday.