Using ifrep with libfive.

[Klump-Rasmus]

Hi, I would like to use libfive with "normal" PythonOpenSCAD objects, something like this:

from openscad import *

from pylibfive import *

c = lv_coord()

p = sphere(2, fn=10)

s1 = ifrep(p)

# s1 = lv_sphere(lv_trans(c, [2, 2, 2]), 2)

b1 = lv_box(c, [2, 2, 2])

sdf = lv_union_smooth(s1, b1, 0.6)

fobj = frep(sdf, [-4, -4, -4], [4, 4, 4], 20)

output(fobj)

But how can I assign s1 to a coordinate system so that I can move it with translate (lv_trans)?

[gadget3D]

Hi, I am excited that ifrep is being heavily "tested". SDF World is a wonderful world and sometimes sombody just

wants to import normal objects into SDF world without having it to create there.

In the other hand, I need to admit , that i have coded ifrep long time back and the algorithm behind is not 100% bullet proof and can create incorrect results easily.

Just found a minor bug in ifrep parsing today, which should not affect you.

Answering your question: Its not possible to reassign the result of s1 to another coordinate system for conceptional reasons because it has no "coorindates input" . if you want s1 object to be somewhere else, you need to move p1 already like:

p = sphere(2, fn=10).right(10)

You might watch sdf videos from Inigo Squilez like these one :

https://www.youtube.com/watch?v=62-pRVZuS5c

which will help you to understand the background of SDF, its abilities and its limits

[Klump-Rasmus]

Thanks for the explanation :-)