How can I get the event when material dropped on Face

[DanRathbun]

@nekitu

Yes I know about that, but it doesnt tell me on which face it was dropped on.

The painted_entity() method (created by the attr_reader call,) will return the current object that @painted_entity is pointing at.

Did you miss what I said ? Ie:

@DanRathbun

It will not attach to the open model if loaded into the console, so load a new model.

---

BUT, I found another silly mistake on line 69.

Drawingelement needs to be Sketchup::Drawingelement

(I fixed the above file, and posted example.)

---

After fixing, it works fine for me:

This is the console output when painting a face with a transparent textured material:

onElementModified: #<Sketchup::Face:0x000000088f9690>
  front material: #<Sketchup::Material:0x000000086bb6d0>
  material name : [Translucent Glass Tinted]
  back material : #<Sketchup::Material:0x000000086bb6d0>
  material name : [Translucent Glass Tinted]

---

… and painting a front face with a non-transparent textured material:

onElementModified: #<Sketchup::Face:0x0000000ec14e50>
  front material: #<Sketchup::Material:0x0000000e303de8>
  material name : [Carpet Berber Multi]
  back material : nil

---

… and painting a back face with a non-transparent material:

onElementModified: #<Sketchup::Face:0x0000000e18fa98>
  front material: nil
  back material : #<Sketchup::Material:0x0000000de8a168>
  material name : [Roofing Tile Spanish]

---

… and painting a group with a non-transparent textured material:

onElementModified: #<Sketchup::Group:0x0000000e301188>
  front material: #<Sketchup::Material:0x0000000df622e8>
  material name : [Roofing Scalloped]

---

Now you see the line that says:

### Notify some other code object of paint action ?

… that is where you would call some method in your other code (class instance or other module,) to either pass the references to the new entity, and it’s materials, ie:

OtherModule::notify_material_change(
  @painted_entity, @material_used, @back_material_used 
)