A surface may be composed of one or more surface patches in each direction.
Together, these residues form a polar surface patch and the wall of the putative binding site.
There may be additional surface patches of mixed positively and negatively charged residues in YbaK.
The problem thus reduces to searching for an optimal local surface patch going through a given set of stereo points from images.
Each jelly-roll motif has two conserved surface patches that probably constitute the active site.
These surface patches are analogous to the multiple polynomial arcs used to build a spline.
Surfaces closed in one or two directions frequently must also be broken into two or more surface patches by the software.
Surfaces and surface patches can only be trimmed at U and V flow lines.
A smear of luminescence showed, soft and faint to his left, too high to be merely a surface patch.
Surface models: The next level of sophistication in modeling involves using a quilt of curved surface patches to model our shape.