[Closed] Python: SetCurrentLayer broken?!?

Mar 26, 2015 4:26 pm

Simple example code:

import MaxPlus
MaxPlus.LayerManager.CreateLayer("foobar")
MaxPlus.LayerManager.SetCurrentLayer("foobar")

A “foobar” layer will be created, but SetCurrentLayer() will result in a error:

-- Error occurred in anonymous codeblock; filename: test.ms; position: 250; line: 6
-- Runtime error:  Line 39  run()
 Line 30210  SetCurrentLayer()
  <type 'exceptions.NotImplementedError'> Wrong number or type of arguments for overloaded function 'LayerManager_SetCurrentLayer'.
  Possible C/C++ prototypes are:
    Autodesk::Max::LayerManager::SetCurrentLayer(Autodesk::Max::WStr const &)
    Autodesk::Max::LayerManager::SetCurrentLayer()

Why?

2 Replies

denisT

Mar 26, 2015 4:26 pm

i think that setcurrentlayer needs a layer object instead of layer name.
the createlayer probably returns this object

hdmaster

Mar 26, 2015 4:26 pm

You need to wrap the layer name into a MaxPlus.WStr object:

import MaxPlus
MaxPlus.LayerManager.CreateLayer("foobar")
MaxPlus.LayerManager.SetCurrentLayer(MaxPlus.WStr("foobar"))

EDIT:

Better solution using python unicode literals:

import MaxPlus
MaxPlus.LayerManager.CreateLayer("foobar")
MaxPlus.LayerManager.SetCurrentLayer(u"foobar")

I think the problem here is the SetCurrentLayer function having two overloads where the automatic type conversion from python to c++ fails.