Select all geometry

N Lindenthal

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?

Matt666

@unknownuser said:

When your script runs fine, in the end you have the component "Stein" selected?

I tried with a component called "essai" created before. I had five components, and they had been all selected in the end.

Can you upload an example I can test, please ?

N Lindenthal

Matt, here is my model to select a component by name "Stein"

FahrstuhlF.skp.zip to selcect component by name

Matt666

Ok I understand your problem...
I have made a component called "test". Entity info window looks like this :
With your component, entity info window looks like this :
The script search for component with definition as ["Stein"]. But your component definition is called "<gruppe#4> in the Skecthup database. His NAME is "Stein".

3 methods :

Create a component directly, without create a group first. Your first ruby script will work.
Change your ruby script, and don't change your method.
Try this in the ruby API :

Sketchup.active_model.definitions.each{|d|return d if d.name == "Stein"}

This code returns the name of the component definition which called "stein"
And the ruby script :

def select_comp_by_name(comp_name)
   model = Sketchup.active_model
   sel = model.selection
   sel.clear
   compdef = Sketchup.active_model.definitions.each{|d|return d if d.name == "Stein"}
   if compdef  #There is a component
      sel.clear
      sel.add(compdef.instances)
   else
      UI.beep
   end
end

Add a line in ruby which control name of all component definitions if C definitions not found...
Like this :

def select_comp_by_name(comp_name)
	model = Sketchup.active_model
	sel = model.selection
	sel.clear
	compdef = Sketchup.active_model.definitions[comp_name]
	Sketchup.active_model.definitions.each{|d|return d if d.name == "Stein"} if not compdef
	if compdef
      sel.clear
      sel.add(compdef.instances)
   else
      UI.beep
   end
end

Not tested, but it sould work !
Tell me if you want more explanations

N Lindenthal

@Matt666
I did understand you. First changes did not delete my error. Hm? What could it be?