[surface] Evaluate z value of nurbs surface on certain (x,y) in the coordinate system of input cloud

[ZhuLingfeng1993]

After I use pcl::on_nurbs::FittingSurface fit a point cloud, I want to evaluate z value of nurbs surface on certain (x,y) in the coordinate system of input cloud.

I find the ON_NurbsSurface::Evaluate interface, but it seems evaluate in normalized coordinate system.

So I hope to add a feature to evaluate in the input cloud coordinate system.

[mvieth]

Hi, which files would have to be changed to add this? I am asking because opennurbs is a third-party component, meaning it was not written by PCL developers, and we will not add any new features to that code (at most we would fix bugs). However if only the code that was written for PCL to interface with opennurbs needs to be changed, then it is fine.
Also, I am not completely sure whether you are offering to add this feature yourself (by creating a pull request), or you want someone else to add the feature?

[ZhuLingfeng1993]

I hope PCL can provide the interface to achieve my target since it would be much more convinient. As I am not familiar with opennurbs, I hope someone else can add the feature.