[HowTo] update view to make animation

MarcioAB

Hello - Happy 2009 for all of us.

I'm just finishing a new version of a script (JointSU) but I can not show the "animation" of an instance in SU. I need help to find how to update the View for each step in a loop. For example, consider the code below:


transf=Geom;;Transformation.rotation(pt,vector,angle)
for i in 1..10
 instance.transform!(transf)
 sleep(1)
end

When I run this code, I just see the instance in the initial position, 10 seconds of nothing and the instance in the final position and not each intermediary steps.
In a trial and error basis, I tried Sketchup.active_model.active_view.invalidate, Sketchup.active_model.active_view.show_frame, Sketchup.active_model.active_view.draw but no luck.

Any help is much welcome.
Regards
Marcio

todd burch

All you need should be to invalidate the view inside your loop, as long as you have a Tool class. Post a small, complete, failing example.

Todd

MALAISE

Hello MarcioAB

Best wishes for 2009
Your script sounds promiser, let's know us your improvements .

MALAISE

MarcioAB

@unknownuser said:

All you need should be to invalidate the view inside your loop, as long as you have a Tool class. Post a small, complete, failing example.
Todd

This is the code I was expecting to work:


def callA
  joint=JointSU.new # see explanation below
  Sketchup.active_model.select_tool(ViewSpinner2.new(joint))
end

class ViewSpinner2
def initialize(j)
  @jointSU=j
  r=@jointSU.getParentComponents
  @c=r[2]
  t2=r[0].transformation
  @t=Geom;;Transformation.rotation(t2.origin,t2.xaxis,-PI/45.0)
  for i in 1..10
   @c.transform!(@t)
   Sketchup.active_model.active_view.invalidate
   sleep(0.1)
  end
end
end # Class

No error message. I see the @c instance in the first position and than in the last position. I do not see the intermediary positions.

Obs: JointSU is now a (long) class (I will post it later today), but for this discussion, the method "getParentComponents" provide data to allow establish a point and an axis for the @t rotation transformation.

On the meantime I just found this code in the examples and it works:


def callB
  joint=JointSU.new
  Sketchup.active_model.active_view.animation = ViewSpinner.new(joint)
end

class ViewSpinner
def initialize(j)
  @jointSU=j
  r=@jointSU.getParentComponents
  @c=r[2]
  t2=r[0].transformation
  @t=Geom;;Transformation.rotation(t2.origin,t2.xaxis,-PI/45.0)
end

def nextFrame(view)
  @c.transform!(@t)
  view.show_frame
  true
end
end # Class

But I still prefer the first one - if it worked (must be missing something I can not see ...)

Thanks
Marcio

MarcioAB

@malaise said:

Hello MarcioAB

Best wishes for 2009
Your script sounds promiser, let's know us your improvements .

MALAISE

Welcome. I'm having fun with this. I will post it later today.
I need to include some animation of the bike based on it's joint-enabled-components.
... and some documentation.

todd burch

Sorry, if I'm going to debug this, I require a complete, small, failing example. I'm not going to try to reverse engineer your snippets.