CPoints at Bounding Box corners?

TIG

If you read the code it gets the bounds of the selection and adds cpoints at the bounds corners - that's all you need to know
Select some geometry and copy/paste the code into the Ruby Console to see what it does...

thomthom

Doesn't take into account groups / components that are not aligned to the model axis.

Rich O Brien

@tig said:

If you read the code it gets the bounds of the selection and adds cpoints at the bounds corners - that's all you need to know
Select some geometry and copy/paste the code into the Ruby Console to see what it does...

I realise how to use it. It's was the trapping comment that had me puzzled.

Thanks anyway. Both of ye

TIG

It does... in that it returns the bounds of the selection, and NOT individual objects within the selection, and a selection's bounding-box is always parallel to the axes irrespective of the selected objects' transformation...
Rich didn't ask for cpoints at the corners of one selected object's bounds.
I gave him cpoints at the corners of the selection's bounds - which might not be the same thing for rotated individual groups/instances...

Rich O Brien

Being able to select a series of groups and components then it places cpoints at all bounding boxes would be sweet.

TIG

Try this

m=Sketchup.active_model;m.start_operation("BBcpts");m.selection.each{|e|next unless e.class==Sketchup;;Group or e.class==Sketchup;;ComponentInstance;t=e.transformation;e=e.definition if e.class==Sketchup;;ComponentInstance;b=Geom;;BoundingBox.new;e.entities.each{|a|b.add(a.bounds)};8.times{|i|m.active_entities.add_cpoint(b.corner(i).transform(t))}};m.commit_operation

adds cpoints at the 8 corners of each selected group/instance's bbox, accounting for transformations... One step undoable.

Rich O Brien

Is getting these control point within the group/component possible?

It's anchors for alignment that I'm looking for. If it's too much hassle forget it.

On a layer would be kinda cool too

TIG

I originally has them inside each container but [foolishly] assumed you wanted them outside!

m=Sketchup.active_model;m.start_operation("BBcpts");m.selection.each{|e|next unless e.class==Sketchup;;Group or e.class==Sketchup;;ComponentInstance;e=e.definition if e.class==Sketchup;;ComponentInstance;b=Geom;;BoundingBox.new;e.entities.each{|a|b.add(a.bounds)};8.times{|i|e.entities.add_cpoint(b.corner(i)).layer=m.layers.add("BBCP")}};m.commit_operation

This version puts the cpoints within each container and uses layer 'BBCP' for them.

Rich O Brien

Can i put it in a class then a def and load it to plugins?

Or is it a module?

Actually forget it

Rich O Brien

Sorry, Thanks TIG

TIG

module ROB

menu=UI.menu("Plugins").add_item("BBcpts"){self.bbcpts()}unless file_loaded?(File.basename(__FILE__)) 
file_loaded(File.basename(__FILE__))
 
def self.bbcpts()
### paste the main code here...
end

end

Copy/paste the code into a file in the Plugins folder called ROB-bbcpts.rb
Usage: type ROB.bbcpts OR pick "BBcpts" off the Plugins menu etc...