l-system stop branch from groing

[rdg]

Not sure if this is modelling related, but:

How can I stop branches from growing further in a lsystem?

branch_stop.hip.tar.gz

I alreday know that A:t<5=FA would stop this rule after generation #5.

And a metaball test would stop the branches if they enter/leaver this volume.

But in my setup, branches are curling left/reght from the main stem, and I want them to stop growing after they reach a certain number of segments. Can this be done?

Thanks,

Georg

[mentor]

this is quite simple

to stop growing you can use % symbol. but if u want to stop growing after f.e. 5 generation u have to use this method:

premise -> FA

A = F[+B]F[-B]A

B= FB

now we have branches which grows away from the rtunk. but how to stop growing?

A=F[+B(3)]F[-B(5)]A

B(i) :i>0 = FB(i-1)

when calling B(3) rule branch will grow until i > 0, we decrementing "i" each time calling B(i-1)

now we have 3 steps in right and 5 steps in left side. thats all

Edited April 8, 2008 by mentor

[rdg]

I understood it - now it's quite simple

Thank you!

this is quite simple

to stop growing you can use % symbol. but if u want to stop growing after f.e. 5 generation u have to use this method:

premise -> FA

A = F[+B]F[-B]A

B= FB

now we have branches which grows away from the rtunk. but how to stop growing?

A=F[+B(3)]F[-B(5)]A

B(i) :i>0 = FB(i-1)

when calling B(3) rule branch will grow until i > 0, we decrementing "i" each time calling B(i-1)

now we have 3 steps in right and 5 steps in left side. thats all