Commit working like undo command

[bizello]

Hi,
I trying to use commit to do some like "undo" command. I´ve found something in the net and one script worked, but others...
The code below works, you can activate only a "commit line" and the face is erased like you want, full control.

def desenha1
modelo = Sketchup.active_model
entities = modelo.active_entities
pt = []
pt[0] = [0,0,0]
pt[1] = [5,0,0]
pt[2] = [5,5,0]
pt[3] = [0,5,0]
abertura = entities.add_face pt
end

def desenha2
modelo = Sketchup.active_model
entities = modelo.active_entities
pt = []
pt[0] = [0,6,0]
pt[1] = [5,6,0]
pt[2] = [5,10,0]
pt[3] = [0,10,0]
abertura = entities.add_face pt
end

def desenha3
modelo = Sketchup.active_model
entities = modelo.active_entities
pt = []
pt[0] = [6,0,0]
pt[1] = [10,0,0]
pt[2] = [10,4,0]
pt[3] = [6,4,0]
abertura = entities.add_face pt
end

#Sketchup.active_model.start_operation("Undo")
desenha1
#Sketchup.active_model.start_operation("Undo")
desenha2
Sketchup.active_model.start_operation("Undo")
desenha3

resposta = UI.messagebox "Erase face?", MB_YESNO

if resposta == 6 then
Sketchup.active_model.commit_operation(a)
else
UI.messagebox "So stay."
end

But I have a part of the another code that doesn't work, I think you don't need all the code, so I'm sending the part with "commit" don't working, the code below:

model = Sketchup.active_model
Sketchup.active_model.start_operation("undo")
entities = model.active_entities
abertura = entities.add_face ptabs
rayt=modelo.raytest(ptabs[0], abertura .normal.reverse)
ptabs_rev=rayt[0]
espess=ptabs[0].distance(ptabs_rev)
abertura.pushpull(-espess)

abeyesno = UI.messagebox "A posição da abertura na parede está correta?
Proceder com o cadastro no Banco de Dados?", MB_YESNO

if abeyesno == 6 then #yes
   cadaberturas(ptabs, espess, cod_arq_atual[0], cod_arq_atual[1], localiza)
  else
   Sketchup.active_model.commit_operation(abertura)
end

I dont' know why the second code doesn't work. I can't see what is wrong.
If you help me, very thanks.

Sérgio.

PS. I need to answer like I solved the my another topis called "edges, angle and rectangle triangle". I'll to write all the problem and describe my solution.

[Dan Rathbun]

Do not name each operation with the same string "Undo"...

give each a unique name "Draw Face 1", "Draw Face 2", etc.

It's best to wrap each operation in a begin ... rescue ... end block and have an abort_operation call in the rescue clause. (methods are also begin .. rescue .. end blocks, where the def *methodname* takes the place of the begin keyword.)

modelo = Sketchup.active_model
begin
  modelo.start_operation("Draw Wall 1")

  # ... draw entities code ...

  modelo.commit_operation

  msg = "A posição da abertura na parede está correta?\n"
  msg<< "Proceder com o cadastro no Banco de Dados?"
  abeyesno = UI.messagebox( msg, MB_YESNO )

  if abeyesno == 6 then #yes
    cadaberturas(ptabs, espess, cod_arq_atual[0], cod_arq_atual[1], localiza)
  else
    Sketchup.send_action("editUndo;")
  end

rescue
  modelo.abort_operation
  UI.messagebox("Error Adding Enities!")
end

Edit: corrected newline character in messagebox string.

commit_operation and abort_operation do not have arguments:

modelo.method(:commit_operation).arity

0

modelo.method(:abort_operation).arity

0

[bizello]

Hi Dan,

Thank you. Its works now.

I think understand how using commit.
Thanks to show how you do your messages in a script. I liked.
I had some asks about send_action and abort but I saw how they works.
So, I edit this post.
Thank you Dan.

SérgioBizello

[thomthom]

Note that start_operation cannot be nested. Doing a new start_operation after another will commit the first.