For each piece you really need several extra columns in the worksheet, giving the x/y/z location in the world, the x/y/z rotation in the world and the x/y/z scaling in the world - ideally it should be a 16 item transformation matrix so you can easily set the piece's transformation from it... tr=object.transformation trans=tr.to_a scalex=Math.sqrt(trans[0]**2+trans[1]**2+trans[2]**2) scaley=Math.sqrt(trans[4]**2+trans[5]**2+trans[6]**2) scalez=Math.sqrt(trans[8]**2+trans[9]**2+trans[10]**2) scale=scalex scale=scaley if scaley>scale scale=scalez if scalez>scale puts " <pos>#{trans[12]} #{trans[13]} #{trans[14]}</pos>\n" puts " <scale>#{scale}</scale>\n" puts " <rotation>\n" puts " <matrix>\n" puts " #{trans[0]/scalex} #{trans[4]/scaley} #{trans[8]/scalez} #{trans[1]/scalex} #{trans[5]/scaley} #{trans[9]/scalez} #{trans[2]/scalex} #{trans[6]/scaley} #{trans[10]/scalez}\n" puts " </matrix>\n" puts " </rotation>\n" The rotation/scaling are inexorability linked using sines/cosines of the rotation angles in x/y/z etc in a complex but predictable way...

Things [each called an Entity] that are 'visible' in a model are typically geometry [lines, faces etc], and groups and components [what is commonly called a component is actually a 'component-instance']. These groups and instances contain geometry - they can also contain sub-groups and other instances. This is a simplified picture since there's also Images, Text, Dimensions etc etc but lets keep it simple ! Within the model's 'database' there are other things you can't see but that you can use - inside 'collections' called Materials, Layers, Styles and ComponentDefinitions. Each of these will have entries like Material, Layer, Style and ComponentDefinition. So far so good ? When you look at the Components in the Browser you are looking into the model's database and seeing the Component-definitions available for use. When you select [highlight] something in a model you can get its 'class' [typename etc] so with the initial examples above you have Sketchup::Edge, Sketchup::Face, Sketchup::Group and Sketchup::ComponentInstance. Let's assume you have somehow set a variable instance=ss[i] which is a Sketchup::ComponentInstance. You can find its definition thus definition=instance.definition Now you can find an instance.definition but conversely you can find a definition.instances [i.e. all of that definition's instances] Any particular definition's instance doesn't contain anything at all - it is a marker for the definition itself, so instance.definition.entities gives you a list of entities inside the definition that that instance is using... You can even 'swap' an instance's definition for another one: instance.definition=another_definition ...

Thankx for tricks.. MALAISE

Looks like an example of using a DLL to get sketchup to talk to another program. Perhaps something similar is included with the SDK? othrwise it'll just be something somebody else has put together to try it out/demonstrate it.

Here is an abridged version: class EntityObserver def onChangeEntity(entity) puts entity.to_s + " changed" end end $entityObserver = EntityObserver.new def addObserver Sketchup.active_model.selection.each{|entity| entity.add_observer($entityObserver)} end def removeObserver Sketchup.active_model.selection.each{|entity| entity.remove_observer($entityObserver)} end If you have one entity selected, it adds and removes fine, but if you have more than one entity selected, it only removes the first entity in the selection.

Yes, I just noticed that is no use to have bitmap data as binary in ruby. Because when asigning texture image to a created material m = materials.add "mat1" m.texture = "C;/texure.jpg" We don't really add that texture, but pass the path to SketchUp and there, inside that evil thing some magic happens and it grabs the texture with the claws. So, yes... we need the bitmap as file on disk before any attempt to do anything.

TIG, Got it, thanks: model = Sketchup.active_model selection = model.selection selection.each do |i| puts "Component(s)" if i.is_a? Sketchup;;ComponentInstance puts i.definition.name i.definition.entities.each do|j| if j.is_a? Sketchup;;ComponentInstance puts j.definition.name j.definition.entities.each do|k| if k.is_a? Sketchup;;ComponentInstance puts k.definition.name end end end end end end Now, to organize as a proceedure to accomplish the above (3 levels) to the nth level:-}

I went through the cutlist.rb instructions again on my project and it works great. I had to move a number of component axis. Thanks.

I think I have to get a few of these books. Computational geometry: algorithms and applications let me calculate a 2D convex hull. (I had no idea what it was before.) http://books.google.no/books?id=tkyG8W2163YC&dq=Computational+Geometry:+Algorithms+and+Applications&printsec=frontcover&source=bn&hl=no&ei=bLYFS9r_DcP3-AbKiozWDQ&sa=X&oi=book_result&ct=result&resnum=4&ved=0CBkQ6AEwAw#v=onepage&q=&f=false

I think the defacto standard in this forum is that the original poster (e.g. you) edits his/her first post and adds [Solved] to the beginning of the title, to let people know there is a solution in the thread. I could be wrong, though, since I'm also quite new here...

Hi there! Take a look at the http://forums.sketchucation.com/viewtopic.php?f=180&t=17948&st=0&sk=t&sd=a, scroll down, find and download FredoScale 2.0h.zip. A brief explanation should also be there. Let us know if this helps. Oh, and FredoScale 2.0 requires LibFredo6 3.1 http://www.sketchucation.com/forums/scf/viewtopic.php?f=180&t=17947#p144178

Thanks, Chris.

@thomthom said: @mcdull said: i have solved the problem ,thank u And what was it? when i generate 3d wall,some points are not planar.i have changed the function.

Thank you Thom and Martin.. I understand better now :

@honoluludesktop said: ... If so is it efficient? Twentieth century issue.

Thanks! That is exactly what I was looking for! I've updated my blog entry (http://www.cfcl.com/rdm/weblog/archives/001716.html) with some speculation on how this capability might be used.

Yeah i noticed a few of those, as well as some other problems Was having alot of issues trying to get it even to run a few parts of it the other night. Been reading the programming Ruby book found on the ruby-doc.org website. going to have to go through the code and tear it apart piece by piece over the course of this week, and hopefully have something workable by this weekend. Hopefully.

Yeah. Looking into it, there is a lot more work involved. I'd have to change my program quite a bit to fit it into this programming structure.

Jim has got the device working in a couple of browsers. He asked me to post these images on his behalf to see if anyone else is interested in this aspect - I am more interested in finalising the machine that runs this or other such devices from the desktop. [image: Oasw_080.jpg] [image: RJlF_081.jpg]

Have you tried SceneExporter, either to do what you want, or as an example of how it could be done? The Pro version will hopefully have the Save dialog working soon.