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As part of integrating the MolProbity tools more tightly with the CCTBX, I'm modifying the Probe code that will be shared by it and Reduce to use native CCTBX structures. One of the structures is a spatial map to accelerate the search for nearby atoms in a model. Before building my own (3D grid with near neighbors listed, ability to insert and remove atoms as they move), I wanted to check and see what was already available in the CCTBX. I looked at the page listing the CCTBX core objects and functions and did not see one, and searching for "spatial" and "accel" in the source tree did not turn up anything promising. Is there one already in there? If not, is this something that others would find to be a useful tool and, if so, where should it live? Otherwise, I'll make it part of Probe. Thanks, Russ Taylor --- Russell M. Taylor II, Ph.D. [email protected] [email protected] [email protected] [email protected] www.cs.unc.edu/~taylorr