Posts made by Jvos

@mikeudin seems to work. maybe because it needs to have c4d.REDSHIFT_LIGHT_PHYSICAL_EXPOSURE as an expression and not as a string.

thanks a lot man!

how come that my string formatting is not working in C4D.

exposure = lamp[c4d.REDSHIFT_LIGHT_PHYSICAL_EXPOSURE]

this works like it should and give's me the exposure

x = 'REDSHIFT_LIGHT_PHYSICAL_EXPOSURE'
exposure = lamp[c4d.'{}'.format(x)]

but this give's an invalid syntax.

I want to format because I need a dict comprehension where I get each attribute from a list. like this

attributes = ['REDSHIFT_LIGHT_PHYSICAL_INTENSITY', 'REDSHIFT_LIGHT_PHYSICAL_EXPOSURE']
lamps = doc.GetActiveObjects(0)
dict_variable = [{attr: lamp[c4d.'{}'.format(attr)] for attr in attributes} for lamp in lamps]

is there maybe like a C4D slack? got always question, but also quick answers for other people. a forum is sometimes a bit slow.
My thanks!

@mp5gosu
Thanks for the example. but I still don't get the syntax right
any introduction maybe to read on? this seems super basic...
If I drag in a parameter from a cube, let's keep using X.

cube = doc.GetActiveObjects(0)
 x = cube[c4d.PRIM_CUBE_LEN,c4d.VECTOR_X]

returns nothing. ('of course' probably) and the selected cube will not take GetParameter since it's a baseobjects and not a C4D.Atom class.
but x = c4d.C4DAtom() is not allowed to be instantiated

edit:
got it working. forum got's loads of answered question wich gave good insight. thanks

Hello mp5,

Thanks for the info, I assumed only Python was available.
Edited the question and marked it

I would like to call and get the attributes returned for a redshiftlamp.
In Maya it is close to this.
selectedobject.getattr('intensity')
which will return me 5

How would I approach this in Python for Cinema, I need to do this for almost all the attributes.

My thanks!

@cairyn
ah yeah, that was a dumb mistake. Got it working now. thanks you for that., but I do still have a question.
If I want to inherit from c4d modules in my own class as a child. how would I do that? I tried it like this.

from c4d.modules.thinkingparticles.TP_MasterSystem import TP_MasterSystem

class Particle(TP_MasterSystem):

but that is not how it works.

The import seems to work fine. but I'm not able to inherit the particle class methods like size or life.
type 'c4d.modules.thinkingparticles.TP_MasterSystem' is not an acceptable base type

thanks for the response, make's everything a bit more clear now.
I got the numpy module in C4D. so if I want to generate multiple objects with a generator and not place the objects directly into C4D, I expected something like this quick example to work.

import c4d

def main():
    y = 0 
    for i in range(10):
        vec = c4d.Vector(y,230,y)
        obj = c4d.BaseObject(c4d.Ocube)  # Create new cube
        obj.SetRelPos(c4d.Vector(vec))  # Set position of cube
        y += 100
        return obj
main()

why would a generator only give me 1 and not 10 cubes cloned?
chancing the return line and adding them directly into the document works, and gives me 10 cubes.
doc.InsertObject(obj)

my thanks

Got a simple script that gives me errors.
First time in C4D so maybe it is a simple API call mistake, but it does not seem so.
the error isReferenceError: could not find 'main' in generator 'Python Generator'

My thanks for helping out, looking forward to building cool stuff in C4D

import numpy as np

n = 10
y = 0
grid = np.random.choice([1, 0], n * n).reshape(10, 10)
for i in range(n):
    for j in range(n):
        if grid[i, j] == 1:
            vec = c4d.Vector(i * 230, j * 230, y)
            obj = c4d.BaseObject(c4d.Ocube)  # Create new cube
            obj.SetRelPos(c4d.Vector(vec))  # Set position of cube
            doc.InsertObject(obj)  # Insert object in document