nv_dcon

The nv_dcon command is used to manipulate the distance constraint list by setting and retrieving parameters, as well as writing constraint lists for XPLOR and PEGASUS. The arguments used depend on the particular option, as described below. The "nv_dcon" command can take any of the following forms:

nv_dcon clear

Clear the distance constraint list.

nv_dcon elem elemSpecifier iConstr ? value ?

Returns the value of the the element specified with the 'elemSpecifier' for the constraint specified with the 'iConstr' argument. If the optional 'value' argument is specified the comand sets the noe's element to that value. The valid 'elemSpecifiers': nv_noe The noe this constraint is derived from. low The lower limit of this constraint. up The upper limit of this constraint. pseudo The pseudo atom correction that will be applied for this constraint. res.0 The residue number of the first atom of this constraint. res.1 The residue number of the second atom of this constraint. aname.0 The atom name of the first atom of this constraint. aname.1 The atom name of the second atom of this constraint.

nv_dcon n

Returns the number of distance constraints in the list.

nv_dcon gen

Generates an internal (to NMRView) constraint list from the internal noe list. Constraints involving non-stereospecifically assigned protons are optimized in manner similar to that used in the program DIANA (Guntert et al., J. Mol. Biol. (1991) 217:517-530. At present, the constraint list is not saved in the database.

nv_dcon pegasus fileName

Create a constraint file named, 'fileName', in the format used by PEGASUS. Constraints will be taken from the constraint list.

nv_dcon xplor fileName

Create a constraint file named, 'fileName', in the format used by XPLOR. Constraints will be taken from the constraint list.