scaling object with python and break condition

Goodevening to everyone,

i am going to ask you all a very basic question but i am starting to code with python these days.

i should need to scale an object (uniform scale) till it reach a set volume value to stop, reading wich scaling factor has been used.

following what i've done so far:

mesh = x

center = rs.MeshVolumeCentroid(x)

scaling_factor = 0

target_volume = 400

while scaling_factor < 10000:

LOOP = rs.scaleObject(x,center,scaling_factor)

if rs.MeshVolume(LOOP) == target_volume:

break

a = LOOP

Hope you can help me. I am trying to translate a grasshopper definition made with ANEMONE into python.

Thank you very much in advance

Nick

Replies to This Discussion

Permalink Reply by Tom Svilans on October 24, 2017 at 3:38am

Unfortunately, that looks too far gone to be saved... :S

Permalink Reply by Tom Svilans on October 24, 2017 at 3:34am

The volume will never (or extremely rarely) be exactly 400, so you have to check when it goes over (>= instead of ==). Then just output the scaling_factor and the temp object as well if you wish.

You also have to choose how your scaling factor will grow... Will it grow linearly? Or exponentially?

center = rs.MeshVolumeCentroid(x)

scaling_factor = 1.0

target_volume = 400.0

temp = x

while scaling_factor < 10000.0:

temp = rs.scaleObject(temp, center, scaling_factor)

if rs.MeshVolume(temp) >= target_volume:

break

scaling_factor = scaling_factor * 1.1

a = scaling_factor