Error Message

Chris88

Sorry guys, it's me again.
Can someone say something about this error message:
'add_instance': Insertion would result in recursive definition
It appears in a rotation command.

Thanks

Chris Fullmer

Looks like you're attempting to insert the new instance into its own definition.

So instead of inserting the instance into the entities of the definition, insert it into the entities of the model.

Gaieus

Well, I know no ruby so a "rural" example: Make a component and while editing it, try to insert the same component inside itself...

Chris88

I'm not sure what do you mean.
So it's better if i'll show you my code,
then you can teach me by reference to the code:

` model = Sketchup.active_model
entities = model.active_entities
group = entities.add_group
entities = group.entities

#-----------------------------------

Kettensaege kreiern

width_kettensaege = 40    
depth_kettensaege = 1 
height_kettensaege = 6  
color_kettensaege = Sketchup::Color.new(169,169,169)

pts = []
pts[0] = [0.5, 0.5, 0.5]
pts[1] = [width_kettensaege+0.5, 0.5, 0.5]
pts[2] = [width_kettensaege + 0.5, 0.5 + depth_kettensaege, 0.5]
pts[3] = [0.5, 0.5 + depth_kettensaege, 0.5]
base = entities.add_face pts

create material

mat_kettensaege=model.materials.add("Material_Kettensaege")
mat_kettensaege.color=color_kettensaege 
 
area = base.area
base.back_material = mat_kettensaege
base.material = mat_kettensaege
base.pushpull(height_kettensaege) 

kettensaege = my_definition = Sketchup.active_model.definitions[0]

to hide the original object

 entities.each { |entity|
   entity.visible = false
   }

#----------------------------------
point = Geom::Point3d.new(0,0,0)
vector = [0,0,1]
angle = 1.57079
rotation = Geom::Transformation.rotation point, vector, angle
instance = entities.add_instance kettensaege, rotation # here is the error
#-----------------------------------`

thomthom

What is your intention with this line?

kettensaege = my_definition = Sketchup.active_model.definitions[0]

You're making a reference to an arbitrary component definition - which in your case is the definition for the group which you try to add an instance into.

thomthom

angle = 1.57079
I assume you want a 90 degree angle in radians - which you can write as 90.degrees. See the Numeric class for modifications that SU has done to the base class: http://code.google.com/apis/sketchup/docs/ourdoc/numeric.html

Chris88

Thanks to all,
the problem is solved

thomthom

@chris88 said:

the problem is solved

I'm curious to what it was...