ADDGROUP in loops

[Domagoj Lukinic]

Hi all,

I am trying to merge my geometry into one, i found this:
https://community.graphisoft.com/t5/GDL/add-several-GROUPs-without-additional-lines/m-p/274202

However is ti possible to not have an error in the code ("Identical operands in group operation").

I need something like this for my code:

pen 1
material 1

group "object":
	gosub "Fixed geomety"

	gosub "Looped geometry"
endgroup

res = addgroup ("object", "object")
placegroup res 


end:!=====================================================

"Fixed geomety":
	block 1,1,1
return

"Looped geometry":
	for i=1 to 5
		addx 1/2
		block 1,1/2,1
	next i
return

I tried to add an empty group but no result, any solutions?

[Jochen Suehlo]

I think the problem is the Addgroup with 2 identical Group Names. Try this:

pen 1
material 1


	group "object1"
		gosub "Fixed geomety"
		gosub "Looped geometry"
	endgroup

	group "object2"
		gosub "Fixed geomety"
		gosub "Looped geometry"
	endgroup

res = addgroup ("object1", "object2")
placegroup res 


end:!=====================================================

"Fixed geomety":
	block 1,1,1
return

"Looped geometry":
	for i=1 to 5
		addx 1/2
		block 1,1/2,1
	next i
return

[SenecaDesignLLC]

I wrote a number that gets 1 added each loop but is converted to a string for the group name. That way there is never a duplicate group name

[Pertti Paasky · Accepted solution]

I use this:

val_a=1
val_b=2
val_z=1

group "mygroup"
block val_a,val_b,val_z
endgroup

mygroup="mygroup"

for i= 1 to 3
   
group "mygroup"+str("%.0m",i)
add i*.2,i*.3,i*.1  
block val_a,val_b,val_z
del 1
endgroup

mygroup=addgroup(mygroup,"mygroup"+str("%.0m",i))
killgroup "mygroup"+str("%.0m",i)
next i

placegroup mygroup
killgroup mygroup