Hi,
I’ve uploaded my first simple (and finished) addon to create custom logarithmic spirals in Blender as mesh objects here:
It gives you control over all parameters which determine the shape and resolution of the spiral, as well as an additional (optional) exponential growth in the 3rd dimension:
For me this was a necessary addition to Blender while modelling ammonite shells, which follow a logarithmic curve. Maybe it is useful for someone here, too.
Cheers,
Thorsten
After install when i try make Logspiral from shift A menu i have this error:
Latest 2.92.3
Python: Traceback (most recent call last):
File "C:\Users\radi0n\AppData\Roaming\Blender Foundation\Blender\2.93\scripts\addons\logspiral.py", line 138, in execute
verts_loc, edges = add_logspiral(
File "C:\Users\radi0n\AppData\Roaming\Blender Foundation\Blender\2.93\scripts\addons\logspiral.py", line 46, in add_logspiral
x, y, z = get_logspiral_vertices(a, b, c, alpha0, nturns, ndivisions)
File "C:\Users\radi0n\AppData\Roaming\Blender Foundation\Blender\2.93\scripts\addons\logspiral.py", line 37, in get_logspiral_vertices
alpha = np.linspace(0., nturns * 2.*np.pi, num = nsteps) + alpha0/180.*np.pi
File "<__array_function__ internals>", line 5, in linspace
File "C:\Blender\Blender2.93\2.93\python\lib\site-packages\numpy\core\function_base.py", line 113, in linspace
num = operator.index(num)
TypeError: 'float' object cannot be interpreted as an integer
location: <unknown location>:-1
Thanks for the bug report, it should be fixed! Please re-install the add-on!
Thanks! Now its ok!
Hi thorst! Thank You so much for this add-on!!
I’m having a difficult time figuring out the units of the parameters.
Is the radius parameter synced with the measurement unit on use on the project, for example, inches?
I’m guessing the opening angle is a scale from 0 to 1 where 0 is 0 degrees and 1, 360. Is this correct?
Also, the zGrowth seems to be way off, cant figure out or even guess how this is tuned.
Thanks for your time!
-Lextej
.