When a wall is resized I want the walls area-attribute to update. Thats basically what Im trying to do.
Great to know that SU8 might work.
About using put, I dont know how to use it? Is it possible to use it with Alex Screyers Ruby Editor? I have tried without any output. Im interested to know more about Win32Api. Is it something I need to download?
Hi!
Im trying to figure out how to use the add_observer method on the entities in a group, and saw TTs list (url below)
http://www.thomthom.net/software/sketchup/observers/#ViewObserver
Here my worst nightmare came through... The Sketchup::EntitiesObserver - onElementModified(entities, entity) dont work. Just as I had experienced myself.
What I try to accomplish (see the code below), is to keep track of the area of a specific face, named yv_face_area (green color). Initially I have set an attribute to the rsgroup (which contains the yv_face_area) set_attribute("rsdict, "area", area). It seems to work fine.
But, as mentioned, the onElementModified method dont seems to work.
Anyone haves an idea how to work around this problem?
snippet:
mod = Sketchup.active_model # Open model
ent = mod.entities # All entities in model
sel = mod.selection # Current selection
class MyEntityObserver < Sketchup;;EntityObserver
def onEraseEntity(entity) #this work
UI.messagebox("onEraseEntity; " + entity.to_s)
end
end #class
class MyEntitiesObserver < Sketchup;;EntitiesObserver
def onElementModified(entities, entity) #dont seems to work
UI.messagebox("onElementModified; " + entity.to_s)
end
def onEraseEntities(entities) #this seems to work
UI.messagebox("onEraseEntities; " + entities.to_s)
end
def onElementRemoved(entities, entity_id) #dont seems to work
UI.messagebox("onElementRemoved; " + entity_id)
end
def onElementAdded(entities, entity) #this seems to work
UI.messagebox("onElementAdded; " + entity.to_s)
end
end #class
pts = []
pts[0] = [ 0, 0, 0]
pts[1] = [ 1000.mm, 0, 0]
pts[2] = [ 1000.mm, 1000.mm, 0]
pts[3] = [ 0, 1000.mm, 0]
pts[4] = [ 0, 0, 1000.mm]
pts[5] = [ 1000.mm, 0, 1000.mm]
pts[6] = [ 1000.mm, 1000.mm, 1000.mm]
pts[7] = [ 0, 1000.mm, 1000.mm]
5.times do |i|
rsgroup = ent.add_group
rsgroup.entities.add_face pts[0..3]
yv_face_height = rsgroup.entities.add_face pts[4..7]
rsgroup.entities.add_face pts[0], pts[3], pts[7], pts[4]
rsgroup.entities.add_face pts[3], pts[2], pts[6], pts[7]
rsgroup.entities.add_face pts[1], pts[2], pts[6], pts[5]
yv_face_area = rsgroup.entities.add_face pts[0], pts[1], pts[5], pts[4]
yv_face_height.pushpull rand(1000.mm)
yv_area = yv_face_area.area.to_m.to_m
yv_face_area.material = (0xAADEAA)
rsgroup.set_attribute "rsdict","area", yv_area
yv_face_area.set_attribute "rsdict", "area2", yv_area
point = Geom;;Point3d.new (1100.mm * i, 0, 0)
t = Geom;;Transformation.new point
rsgroup.transform! t
rsgroup.add_observer(MyEntityObserver.new)
rsgroup.entities.add_observer(MyEntitiesObserver.new)
end #times_do
ent.each do |o|
point = Geom;;Point3d.new (0, 1100.mm, 0)
t = Geom;;Transformation.new point
o.transform! t
end #each_do
i = 0
ent.each do |o|
attr = o.get_attribute "rsdict","area"
if attr
UI.messagebox "Attr - Area; " + attr.to_s + " m² - n; " + i.to_s
i = i + 1
end
end
Ok thank you Dan. I will try that. 
yes, I thought about but Im unsure how to do it.
face_array = Array.new(loop_length,Hash.new)
for i in 0..(loop_length-1)
face_array[i][@yv_group_i] = Sketchup.active_model.entities.add_group
face_array[i][@yv_face_i] = @yv_group_i.entities.add_face (@pts[1+(i*4)], @pts[2+(i*4)], @pts[3+(i*4)], @pts[4+(i*4)])
end
Something like that...??
Hi!
Is it possible to create new variables in a for-loop?
Now I have something like this, which works:
loop_length = 3
for i in 0..(loop_length-1)
if (i == 0)
@yv_group0 = Sketchup.active_model.entities.add_group
@yv_face0 = @yv_group0.entities.add_face (@pts[1], @pts[2], @pts[3], @pts[4])
end
if (i == 1)
@yv_group1 = Sketchup.active_model.entities.add_group
@yv_face1 = @yv_group1.entities.add_face (@pts[5], @pts[6], @pts[7], @pts[8])
end
if (i == 2)
@yv_group2 = Sketchup.active_model.entities.add_group
@yv_face2 = @yv_group2.entities.add_face (@pts[9], @pts[10], @pts[11], @pts[12])
end
end
I think it would be smarter if it was possible to create new variabels in the for-loop, like:
for i in 0..(loop_length-1)
@yv_group_i = Sketchup.active_model.entities.add_group
@yv_face_i = @yv_group_i.entities.add_face (@pts[1+(i*4)], @pts[2+(i*4)], @pts[3+(i*4)], @pts[4+(i*4)])
end
As you can see, I would like to try to put the i on the variables.
Is that possible in some way?? 
-Rasmus
ah ok
Anyway, it finally works with this "simple" solution:
my_dialog.add_action_callback("get_array") do |web_dialog,yv_array|
@YV_array = yv_array.scan(/\d+/).collect {|d| d.to_i}
end
I wonder why the eval-rescue solution has to be avoided? Is it slow?
Thanks to all of you. - Aerilius, Dan, Thomthom
Gratias Ad Omnes
Aerilius, Im a little impressed.
When you quote my code, you use different variable-names than the ones from my example.
The funny thing is, the variable-names you use is the one I actually use on my own computer, before I started to look at arrays... Are you psychic or something??
Thank you all!! Now I have something to try out.
hi!
I have a problem passing array from Webdialg (Javascript) to Ruby.
Htmlfile.html
<script>
var layer_array = [108,190,95];
query = 'skp;get_array@' + layer_array;
window.location.href = query;
</script>
Rubyfile.rb
my_dialog.add_action_callback("get_array") do |web_dialog,yv_array|
UI.messagebox "YV_array from callback action; " + yv_array
end
In the html/js file its possible to do like this:
alert("first item: " + layer_array[0]);
=> Output: "first item: 108"
Or if I do like this:
alert("all items: " + layer_array);
=> Output: "all items: 108,190,95"
Every things work fine!
But, when its send back to ruby the trouble starts:
If I write:
UI.messagebox ("first item: " + layer_array[0])
=> Output: "first item: 57"
But if I write:
UI.messagebox ("all items: " + layer_array)
=> Output: "all items: 108,190,95"
Here it seems to work???
My guess is when its send from JS to Ruby it goes from being an array to be a string?
Anyone know how to overcome this problem?
-Rasmus
Finally it works!!...
BUT I had to move the rs_main.rb from the "\Plugins\as_plugins\as_rubyeditor\snippets"-folder to the "\Plugins"-folder, and then restart SU. At start up it showed the Alertbox "Helle World".
BUT It won't work if I use the playbutton in AS-code editor. It seems like, when using modules, it has to be loaded into SU at startup.
I wonder if there is a way to come around this?
EDITED 1: It can be run directly from the snippet folder with ruby console (then SU requires no restart):
load 'c:\path to the program\Google SketchUp 7\Plugins\as_plugins\as_rubyeditor\snippets\rs_main.rb'
EDITED 2: in rs_main.rb require is changed to load. Then it updates the variables when its changed.
So far so good! Thank you...
@dan rathbun said:
BTW.. did you install the full Ruby version ??
Ruby (v1.8.6-p287) Windows One-Click InstallerWhen you do.. you will have the full CHM file for
"Programming Ruby - The Pragmatic Programmer's Guide, 1st Ed."
in your "C:/Ruby186/doc" directory.
No I havn't. But I will
I get the point using namespaces, so I decided to find out how module works by making the simpelts possible example... and it dont work 
Again with 2 files:
From rs_main.rb I call a method defined inside rs_moduletest.rb. The method then should write in a messagebox "Hello World".
rs_main.rb:
module RVS; end
module RVS;;MyPlugin
# declare module vars and constants first
@@myHelloVar = 'Hello World'
# require other parts of this plugin;
require('as_plugins/as_rubyeditor/snippets/rs_moduletest.rb')
# main plugin script, menu items, etc.
MyPlugin.test() # Calling the test-method from rs_moduletest.rb
end #module RVS;;MyPlugin
rs_moduletest.rb
module RVS;;MyPlugin
public
def self.test ()
UI.messagebox @@myHelloVar
end
end #module RVS;;MyPlugin
how should this be written to work?
First of all, thank you for all the answers. Its really helpful.
Even though its a little abstract to me right now, I know which direction to go. I belive the answer is using an author module. I will try to find out the difference between module and class
Hi 
!
I have 2 files:
I would like to pass a variable from main.rb to rs_boxtool.rb, setting the size of the box. The idea is to use @boxheight as a variable. Is that possible?
main.rb:
require ('as_plugins/as_rubyeditor/snippets/rs_boxtool.rb')
@boxheight = 100 # It's a variable inside the tool, but it dont work!
boxtool = BOX_tool.new
Sketchup.active_model.select_tool boxtool
rs_boxtool.rb:
class BOX_tool
def initialize
@mod = Sketchup.active_model
@ent = @mod.entities
@view = Sketchup.active_model.active_view
@state = 0
inches = 1
@mm = inches.to_mm
#@boxheight = 1800/@mm # --> This sould be accessed from the rs_boxcall.rb file
#---box def.start---
@pts = []
@pts[0] = [0,0,0]
@pts[1] = [0,0,@boxheight]
@pts[2] = [0,@boxheight,@boxheight]
@pts[3] = [0,@boxheight,0]
#---box def.slut---
end
def activate
end
def onMouseMove(flags, x, y, view)
if (@state == 0) # Create box_group
ip = Sketchup;;InputPoint.new
ip.pick view, x,y
ip = ip.position
@yv_group =Sketchup.active_model.entities.add_group
@yv_face1 = @yv_group.entities.add_face (@pts[0], @pts[1], @pts[2], @pts[3]) # basis side
point = Geom;;Point3d.new ip
new_transform = Geom;;Transformation.new point
@yv_group.transformation = new_transform
@state = 1
end
if (@state == 1) # box follow mousemove
ip = Sketchup;;InputPoint.new
ip.pick view, x,y
ip = ip.position
Sketchup.status_text = "@state = 1 ; Inputpoint; ", ip
point = Geom;;Point3d.new ip
new_transform = Geom;;Transformation.new (point)
@yv_group.transformation = new_transform
end
if (@state == 2) # onLMouseButton place boxgroup in choosen position
ip = Sketchup;;InputPoint.new
ip.pick view, x,y
ip = ip.position
ip = ip.x-0.1/@mm, ip.y , ip.z
Sketchup.status_text = "@state = 2 ; Inputpoint; ", ip
point = Geom;;Point3d.new ip
new_transform = Geom;;Transformation.new (point)
@yv_group.transformation = new_transform
@ip1 = ip
@state = 3
end
def onLButtonDown(flags, x, y, view)
if (@state == 3)
self.reset
end
if (@state == 1)
@state = 2
end
end # onLButtonDown
end
def reset
@state = 0
end
end # class BOX_tool
#boxtool = BOX_tool.new
#Sketchup.active_model.select_tool boxtool
Thanks in advance.
-Rasmus
Hmm... found a solution.
When I press Methods Index in the menu it opens "https://developers.google.com/sketchup/docs/methods?hl=da"
I tried to delete ?hl=da so it only said: "https://developers.google.com/sketchup/docs/methods"
Then it works.
Thank you Dan. It worked
I have started to go through the Ruby Resource as you suggested. And I also found the answer for my own question in there. 
Hi All
Once I made a simple linedrawing tool, capable of drawing straigt lines.
Its saved in a file called mylinetool.rb in \Plugins\as_plugins\as_rubyeditor\snippets
The question is, how do I make a small rubyscript that loads and runs the tool from Alex Schreyers Ruby Code Editor?
Is it something like "load_file", "include" or "load(filename)"??
Can it be loaded from a URL? eg. http://www.google.com/mylinetool.rb
thanks in advance
-Rasmus
Hi!
Under Quick References --> Method Index it will only load from "Symbol, A, B, C, D to E"... not any further.
I have the same problem in I.E. and Chrome... for more than a week now.
Hi Chris
Thank you so much!
This is exactly what I was looking for. Once again this forum has helped me out!
I'm trying to make a wall tool, and have an idea that this will be very usefull.
-Rasmus
Greetings out there...
I'm trying to make a snippet where a component's bounding box lights up, when the mouse is pointing at the object. I have looked around for a while at different classes, for instance the oberserver class and the UI class - pickhelper, but nothing seems to do the job.
Can anyone tell me in which direction to look, or even better show me a rubyexample I can look in?
thx in advance 
-Rasmus