Dear Edson
I hope you don't mind my using your suggestion to illustrate my view that plugins should be considered in two categories:
Lead dressing tools | analytical animation
So in the case of your louvres it would seem close to reality to use dressing plugins to create an individual component but unworldly to create separate components with different rotations. The component is the same, only its assembly differs.
So here I would recommend using a webdialog machine to assemble each louvre and determine its rotation. JavaScript has a ready-made random number generator (Math.random()), but the rotation might better be determined by sun position, or wind direction/air flow for cooling plant and so on. Louvres could also be grouped in sets whilst still retaining their individuality (no exploding of groups required) and all could be animated including delivery, hoisting, unpacking, installation, testing and use.
Now all of this is unlikely to be of anything but passing interest to the Sketchup modeler but as the webdialog machine records are in comma separated plain text, other machines designed for different purposes can add their output over the Net and help compile comprehensive data. All (authorised) can see the results.
This seems well and good but the main stumbling block is the difficulty in establishing a single standard for the interaction of webdialogs with PCs and Macs. I am not suggesting this should be attempted in this topic, but if what I suggest helps to build a consensus for a dedicated webdialog forum, then I think this would greatly help the development of this important aspect of Sketchup use.
My apologises for "bending" your topic,
Chris
[flash=600,480:1p50byyh]http://vimeo.com/moogaloop.swf?clip_id=6673808&server=vimeo.com&show_title=1&show_byline=1&show_portrait=0&color=&fullscreen=1[/flash:1p50byyh]
Just testing if Vimeo now unblocked