Hi,

I have tried a lot, but actually it seems to me, that the arclen function is missing in houdini master 10.0.295. I am working with the free apprentice version and the build platform is linux-x86_64-gcc4.2. So these are the basics, let's come to the concrete problem:

I want to split a given nurbs curve into several partitions that are again new nurbs curves in the parameter domain . The problem is now, that I want to use the arc length for this splitting in order to have nearly same sized segments. I've seen, that there is the arclen function, but when I tried to use it, houdini says, that it does not exist. Just to mention, when I say in the python shell “import math” and I write “math.” houdini gives a list of all functions and - surprise - arclen is not listed, although it is part of the math package, as you can see in the houdini documentation (http://www.sidefx.com/docs/houdini10.0/expressions/). [sidefx.com] I also found another function called arcLength, which is a member of the face class (http://www.sidefx.com/docs/houdini10.0/hom/hou/Face). [sidefx.com] The first problem here is, that it is marked as “not implemented yet” and the other problem is, that I don't know how to get a face out of the CVs of a curve node.

Do you have any solutions to the arclen problem?