3 python beginner questions

[Per-Anders]

1) Moving an axis can be done either using callcommands for the existing axis tools or by doing the axis movement manually, all you do is move the points in the opposite direction to the axis.

2) What are you trying to do to the edges beyond select or hide them? You can adjust their breaking using the phongbreaks.

3) Normals must be calculated by hand however you can use the PolygonObject;:CreatePhongNormals() function to return the point normals for the whole object, polygon normals may be retrieved by simply using the cross products of the points, edges are the averaged of the neighbor polygons, the n-gon access is not currently available in Python which would also give you access to n-gon normal data. For Splines you may use the SplineHelp class to retrieve spline normals.

[Little_Devil]

thanks for the quick reply.

[Little_Devil]

if it is not too much i have got a fourth question. most langues have something like a
math class (sin,cos,abs,sqr,sqrt...). when i'm trying to use pythons math class like this

y = math.fabs(x)

http://docs.python.org/release/2.6.4/library/math.html?highlight=math#module-math

cinema says NameError: global name 'math' is not defined. i guess i have to
import something, but the python documentation doesnt name anything to import ?
where is my fault ?

thanks for your patience :)

[Per-Anders]

Yes you must import the math library. At the beginning of your script just write :
import math
next to the other import calls. Then this will work.

[Little_Devil]

thanks for your quick reply again. quite obvious. :banghead:

[Little_Devil]

1. renamed the threadtitle to match the topic

2. can you name some ressources for *polymodeling* algorithms ? i've already checked
the stickies, did a quite extensive googlesearch for

edge loop algorithm
edge loop code
edge loop script

with 0 results. i've done the first steps iwth polyobjects, created a script that can create
plane and discs and want to take the next step now. i'm just medicore in math, so my
apologies, if the edge loop thing is such a obvious thing, for me it is not.

i would prefer free ressources, but I'm also willing to buy a good book if there is no other way.

[Per-Anders]

You could just use the inbuilt routines for that. Use SendModelingCommand to make use of the inbuilt edge loop routines.

[Little_Devil]

i'm aware of that, but that is not what i am aiming for .

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