The rbfROC module features an advanced connection with the OpenCascade engine. It allows CAD based actions in two possible directions. CAD2MESH allows to provide as input iso-topological variations of a geometry as step files or as brep files. The rbfROC CAD2MESH allows to create a field capable to morph the underlying mesh of the baseline CAD onto the variation; the field can be exported as a cloud of points. The MESH2CAD allows to warp an existing CAD model onto a deformed shape known as cloud of points or as a mesh and its deformation; the original brep is converted into NURBS of high order to accomodate the shape variation.