Yoshinori Tanimura

T-spline is patented by Autodesk. https://patents.google.com/patent/US7274364B2/en It seems to use it with Rhino. We need to check the conditions of availability. It is not immediately supported.

We should create a new enum that enumerates special shapes such as planes and spheres in parallel with NURBS, and add rotators to it.

In the master branch, we found holes in the cone and gaps in the mesh at the edges. These will be dealt with in due course, but priority will be...

There is no problem with the way the surface is added to `Table`. I am afraid if you have noticed, the sweeping vector in https://github.com/ricosjp/truck/pull/30/files#diff-d3a3982e7a3577fe7a8eecc1d1f4e2264bd7329ecdce9dc0d72c850fc2b4a63dR1115 should be `Vector3::unit_z()`.

We have a need to use cylindicalsurface on my end as well. What is the current situation here? We can make a continuation if you like.

There are several problems with the current ruststep. The biggest problem is that Complex Entity conversion is largely untouched. This problem requires some ad hoc implementations to address. There are...

Since the scale of development was a bit large, we made a special exception to release the branch we are currently working on, although we do not usually do this....

There is no way to deal with Complex Entity because the problem is inherently difficult, but it seems to be relatively easy to solve for Option, Logical, and Boolean deserialization....

Topology is also difficult, but STEP's requirements for shape are looser than truck's, so suddenly converting to `Solid` will not work. For example, truck does not allow for Edges with...

I wrote a test with what I have now, so I merged it once and deleted the branch 163-step-geometry-manually-primitive. If you have something you are developing, please let me know...