Select all geometry

Didier Bur

Hi,
If you want to collect all compos instances and groups in your model and select them:


def select_comps
@sel=Sketchup.active_model.selection
@sel.clear #prevents any wrong previous selection
Sketchup.active_model.active_entities.each { |ent|
   @sel.add ent if (ent.typename == "ComponentInstance") or (ent.typename == "Group")
}
end

There are other ways to do this (yeld method for instance) but this one may be more understandable.
Use "select_comps" at the beginning of your script and all instances will be ready in @sel variable for further action(s):

def my_script
select_comps
...
end

Hope this helps,

Laxmarsk

Hi Didier

Thank you very much. It works perfectly!

todd burch

In one line:


Sketchup.active_model.selection.add(Sketchup.active_model.entities.to_a)

No need to clear it first.

Todd

fredo6

@laxmarsk said:

I am working on a little script that is moving groups or components based on offset values read from a txt file and saving the files again at the new location.

Script is working but now I want to get things done without having to manually "select all".

What I meant is that you do not need to select entities to perform your 'move' operations. Sketchup.active_model.active_entitiescontains all the entities of the model, and you can then apply your transformation to this list.

For instance, if you want to move all objects of the model by an offset offset_vector (which you'll read from a file), then all you have to write is


all_entities = Sketchup.active_model.active_entities   #all entities of the models
t = Geom;;Transformation.translation offset_vector
all_entities.transform_entities t, all_entities

Now, if your problem is about the selection, Todd's and Didier's code will make it as a Select All.

N Lindenthal

@unknownuser said:

In one line:


> Sketchup.active_model.selection.add(Sketchup.active_model.entities.to_a)
>

Please, Todd, tell me how to select my object »Stein«, but not all entities.

Didier Bur

Hi,
In select_all function, replace

@sel.add ent if (ent.typename == "ComponentInstance")

with:

@sel.add Sketchup.active_model.definitions["Stein"].instances

assuming that you want to select all instances of the "Stein" component, I guess.

If I had to code such a function, I'll write this:


def select_comp_by_name(comp_name)
@sel = Sketchup.active_model.selection
@sel.clear!
@sel.add Sketchup.active_model.definitions[comp_name].instances
@sel
end

Function call example in the script:


...
stones=select_comp_by_name("Stein")

Hope this helps,

...

N Lindenthal

@Didier


def select_comp_by_name(comp_name)
@sel = Sketchup.active_model.selection
@sel.clear!
@sel.add Sketchup.active_model.definitions[comp_name].instances
@sel
end

From this I made a text file "Aar_select_comp_by_name.rb" in the Plugins folder. Restart SU.


stones=select_comp_by_name("Stein")

This I wrote in the ruby console line.

Then comes the following error:

@unknownuser said:

stones=select_comp_by_name("Stein")
Error: #<NoMethodError: undefined method `clear!' for #Sketchup::Selection:0x1afaa3b0>
(eval):11
(eval):11

How to select an object by name?

N Lindenthal

Unfortunately I don’t know, what to type in the Ruby console line (I am Ruby beginner).

fredo6

Just remove the exclamation mark to @sel.clear

N Lindenthal

@unknownuser said:

Just remove the exclamation mark to @sel.clear

Then come the following error:
@unknownuser said:

stones=select_comp_by_name("Stein")
Error: #<NoMethodError: undefined method `instances' for nil:NilClass>
/Library/Application Support/Google SketchUp 6/SketchUp/Plugins/Aar_Select_comp_by_name.rb:4
(eval):197

fredo6

First, I would make a test on the return value of Sketchup.active_model.definitions[comp_name], because if there is no such component definition*<comp_name>*, it will return <nil>, and applying the method instanceswill provoke an error.

Otherwise, your code seems correct to me.

The issue is maybe that there is no such component "Stein" in your model. You should check with the Component window.

N Lindenthal

@Fredo6

@unknownuser said:

Sketchup.active_model.definitions[comp_name]
Error: #<NameError: undefined local variable or method `comp_name' for main:Object>
(eval):197

This comes from ruby console.

I had an object named "Stein". And your question to a component named ”Stein" let me make also a component named "Stein". Same error.

fredo6

When you call it from the console, use "stein" not comp_name, which is the name of the variable. So:

Sketchup.active_model.definitions["stein"]

Your code looks correct. Here it is with the test on existence of the component


def select_comp_by_name(comp_name)
   model = Sketchup.active_model
   sel = model.selection
   sel.clear
   compdef = model.definitions[comp_name]
   if compdef  #There is a component
      sel.clear
      sel.add compdef.instances
   else
      UI.beep
   end
end

Are you sure you have a component called "stein" in your model? Check with the Windows>Components. By the way, I wonder what you call "an Object named "stein"", as in Sketchup, you only give a name to Components or Groups, but there is nothing like an 'object'.

Note also that Sketchup is not case sensitive with the name of components.

Fredo

N Lindenthal

@unknownuser said:

…
I wonder what you call "an Object named "stein"", as in Sketchup, you only give a name to Components or Groups, but there is nothing like an 'object'.
…

Please excuse me, I have a group named "Stein", no object.

fredo6

Then, this is the source of your error.
You must have a Component, not a Group for your Ruby code to work.
In Sketchup, use the command Make Component(shortcut 'G') instead of Make Group

N Lindenthal

@Fredo6
Now my model has no group "Stein", but one component "Stein". But I have no luck. To select my component "Stein" by script in ruby console does not work. Did you try your script lines and you could select your component by name?

fredo6

Which error do you get?

N Lindenthal

@Fredo6

This is my ruby script »Aar_Select_comp_by_name.rb« in the Plugins folder:

@unknownuser said:

def select_comp_by_name(comp_name)
model = Sketchup.active_model
sel = model.selection
sel.clear
compdef = model.definitions[comp_name]
if compdef #There is a component
sel.clear
sel.add compdef.instances
else
UI.beep
end
end
#def select_comp_by_name(comp_name)
#@sel = Sketchup.active_model.selection
#@sel.clear
#@sel.add Sketchup.active_model.definitions[comp_name].instances
#@sel
#end

If I repeat loading by ruby console:

load "Aar_Select_comp_by_name.rb"

then come the following notes
@unknownuser said:

/Library/Application Support/Google SketchUp 6/SketchUp/Plugins/Aar_Select_comp_by_name.rb:6: warning: parenthesize argument(s) for future version
/Library/Application Support/Google SketchUp 6/SketchUp/Plugins/Aar_Select_comp_by_name.rb:7: warning: parenthesize argument(s) for future version
/Library/Application Support/Google SketchUp 6/SketchUp/Plugins/Aar_Select_comp_by_name.rb:7: warning: parenthesize argument(s) for future version
/Library/Application Support/Google SketchUp 6/SketchUp/Plugins/Aar_Select_comp_by_name.rb:8: warning: parenthesize argument(s) for future version
/Library/Application Support/Google SketchUp 6/SketchUp/Plugins/Aar_Select_comp_by_name.rb:8: warning: parenthesize argument(s) for future version
/Library/Application Support/Google SketchUp 6/SketchUp/Plugins/Aar_Select_comp_by_name.rb:8: warning: parenthesize argument(s) for future version
/Library/Application Support/Google SketchUp 6/SketchUp/Plugins/Aar_Select_comp_by_name.rb:10: warning: parenthesize argument(s) for future version
/Library/Application Support/Google SketchUp 6/SketchUp/Plugins/Aar_Select_comp_by_name.rb:10: warning: parenthesize argument(s) for future version
true
… but also »true«.

Now with ruby script line

Sketchup.active_model.definitions["Stein"]

I get
@unknownuser said:

nil

and with

> select_comp_by_name("Stein")

@unknownuser said:

Error: #<NoMethodError: undefined method ` ' for main:Object>
/Library/Application Support/Google SketchUp 6/SketchUp/Plugins/Aar_Select_comp_by_name.rb:2
(eval):197

… nothing is selected.

Matt666

Hi !
Your script works fine here... Be careful with case of the definition name... I found no error in your script...
Perhaps some parenthesis

sel.add(compdef.instances)

and unnecessary duplication

sel.clear

Erase the second duplication.

N Lindenthal

@Matt666
Thanks for your corrections.
When your script runs fine, in the end you have the component "Stein" selected?