Selected Dim to Component Instance

ktkoh

I am starting with the following code (after selecting a dim in the model)

mod = Sketchup.active_model # Open model
ent = mod.entities # All entities in model
sel = mod.selection # Current selection

s_ent = sel[0]
type = s_ent.typename
if type == "DimensionLinear"
  
   arr = s_ent.start
if arr[0].nil?
  UI.messagebox("No attached entity. Point is " + arr[1].to_s)
 else
   UI.messagebox("Attached entity; " + arr[0].to_s)
  type = arr[0].typename
 end 
  parent1 = arr[0].parent
  l_name = parent1.layer.name
 
end

This gets me to the Component Definition but I need the Component Instance to find the layer name so I can change the dim layer to the Component Instance layer.

Keith

sdmitch

@ktkoh said:

I am starting with the following code (after selecting a dim in the model)

mod = Sketchup.active_model # Open model
> ent = mod.entities # All entities in model
> sel = mod.selection # Current selection
> 
> s_ent = sel[0]
> type = s_ent.typename
> if type == "DimensionLinear"
>   
>    arr = s_ent.start
> if arr[0].nil?
>   UI.messagebox("No attached entity. Point is " + arr[1].to_s)
>  else
>    UI.messagebox("Attached entity; " + arr[0].to_s)
>   type = arr[0].typename
>  end 
>   parent1 = arr[0].parent
>   l_name = parent1.layer.name
>  
> end

This gets me to the Component Definition but I need the Component Instance to find the layer name so I can change the dim layer to the Component Instance layer.

Keith

mod = Sketchup.active_model
ent = mod.active_entities
sel = mod.selection

s_ent = sel[0]
type = s_ent.typename
if type == "DimensionLinear" 
 arr = s_ent.start
 if arr[0].parent.is_a?(Sketchup;;ComponentDefinition)
  parent1 = arr[0].parent;
  parent1.instances.each{|ci|
   if ci.bounds.contains?(arr[1])
    l_name = ci.layer.name;
    s_ent.layer=l_name;
    sel.add ci;break
   end
  }
 else
  puts "Dimension not associated with component"
 end
end

TIG

Couple of pointers.

I think you really want:

mod.**active_**entities # All entities in **active context**

NOT the entities in the model itself: after all, the user might be inside an edit ?

You might also like to check Sketchup.version and/or if a particular method is defined [ .respond?] because dim's were added to the API quite recently...

... arr = s_ent.start ### the array of data that the dim is attached to [at its start] ... parent1 = arr[0].parent ### the vertex inside the definition l_name = parent1.layer.name ### the definition itself won't have a layer ?

You have no simple way of knowing the instance from the definition.
if the parent1.instances.length==1
instance = parent1.instances[0]
BUT if not, then you need to find how to spot the instance...

We have a point at the end of the dim...

pt = arr[1]

You can get its screen xy thus:

view = mod.active_view xy = view.screen_coords(pt) x=xy[0] y=xy[1]

Now set up a pickhelper to test it...

ph = view.pick_helper ph.do_pick(x, y) array = ph.all_picked
returns an array of all things at that point, including instance[s], so iterate through the array.uniq and test if its an instance AND it matches arr[0] == instance.definition
If so then you have your instance !
Get the layer from that etc...

ktkoh

Thanks for the help. I'll try your suggestions.

Keith