Parameter Aligned Trimmed Surfaces.
Subdivision and multiresolution for pups
Interactive 3D content modeling for digital earth
A Subdivision Framework for Partition of Unity Parametrics.
3d maquetter: Sketch-based 3d content modeling for digital earth
CINPACT-splines: A Class of Curves with Compact Support
Partition of unity parametrics: a framework for meta-modeling
Sketch based volumetric clouds
Ribbons: A representation for point clouds